Campbell Barton
b6dcdb065d
These changes are to make the bmesh api more consistent and easier to learn, grouping similar functions which is convenient for autocomplete. This uses similar convention to RNA. * use face/loop/edge/vert as a prefix for functions. * use 'elem' as a prefix too for functions that can take any type with a BMHeader. * changed from camel case to underscore separated (like RNA).
2069 lines
50 KiB
C
2069 lines
50 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Martin Poirier
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/editors/transform/transform_snap.c
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* \ingroup edtransform
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <float.h>
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#include <stdio.h>
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#include "PIL_time.h"
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#include "DNA_armature_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "DNA_meshdata_types.h" // Temporary, for snapping to other unselected meshes
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#include "DNA_space_types.h"
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#include "DNA_screen_types.h"
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#include "DNA_view3d_types.h"
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#include "DNA_windowmanager_types.h"
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#include "RNA_access.h"
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#include "BLI_math.h"
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#include "BLI_editVert.h"
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#include "BLI_blenlib.h"
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#include "BLI_utildefines.h"
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//#include "BDR_drawobject.h"
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//
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//#include "editmesh.h"
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//#include "BIF_editsima.h"
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#include "BIF_gl.h"
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//#include "BIF_mywindow.h"
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//#include "BIF_screen.h"
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//#include "BIF_editsima.h"
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//#include "BIF_drawimage.h"
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//#include "BIF_editmesh.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_object.h"
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#include "BKE_anim.h" /* for duplis */
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#include "BKE_context.h"
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#include "BKE_tessmesh.h"
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#include "BKE_mesh.h"
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#include "ED_armature.h"
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#include "ED_image.h"
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#include "ED_mesh.h"
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#include "ED_uvedit.h"
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#include "ED_view3d.h"
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#include "WM_types.h"
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#include "UI_resources.h"
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#include "UI_view2d.h"
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#include "MEM_guardedalloc.h"
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#include "transform.h"
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//#include "blendef.h" /* for selection modes */
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#define USE_BVH_FACE_SNAP
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/********************* PROTOTYPES ***********************/
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static void setSnappingCallback(TransInfo *t);
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static void ApplySnapTranslation(TransInfo *t, float vec[3]);
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static void ApplySnapRotation(TransInfo *t, float *vec);
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static void ApplySnapResize(TransInfo *t, float vec[2]);
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/* static void CalcSnapGrid(TransInfo *t, float *vec); */
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static void CalcSnapGeometry(TransInfo *t, float *vec);
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static void TargetSnapMedian(TransInfo *t);
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static void TargetSnapCenter(TransInfo *t);
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static void TargetSnapClosest(TransInfo *t);
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static void TargetSnapActive(TransInfo *t);
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static float RotationBetween(TransInfo *t, float p1[3], float p2[3]);
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static float TranslationBetween(TransInfo *t, float p1[3], float p2[3]);
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static float ResizeBetween(TransInfo *t, float p1[3], float p2[3]);
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/****************** IMPLEMENTATIONS *********************/
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#if 0
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int BIF_snappingSupported(Object *obedit)
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{
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int status = 0;
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if (obedit == NULL || ELEM4(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE)) /* only support object mesh, armature, curves */
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{
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status = 1;
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}
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return status;
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}
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#endif
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int validSnap(TransInfo *t)
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{
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return (t->tsnap.status & (POINT_INIT|TARGET_INIT)) == (POINT_INIT|TARGET_INIT) ||
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(t->tsnap.status & (MULTI_POINTS|TARGET_INIT)) == (MULTI_POINTS|TARGET_INIT);
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}
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int activeSnap(TransInfo *t)
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{
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return (t->modifiers & (MOD_SNAP|MOD_SNAP_INVERT)) == MOD_SNAP || (t->modifiers & (MOD_SNAP|MOD_SNAP_INVERT)) == MOD_SNAP_INVERT;
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}
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void drawSnapping(const struct bContext *C, TransInfo *t)
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{
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if (validSnap(t) && activeSnap(t))
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{
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unsigned char col[4], selectedCol[4], activeCol[4];
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UI_GetThemeColor3ubv(TH_TRANSFORM, col);
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col[3]= 128;
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UI_GetThemeColor3ubv(TH_SELECT, selectedCol);
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selectedCol[3]= 128;
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UI_GetThemeColor3ubv(TH_ACTIVE, activeCol);
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activeCol[3]= 192;
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if (t->spacetype == SPACE_VIEW3D) {
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TransSnapPoint *p;
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View3D *v3d = CTX_wm_view3d(C);
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RegionView3D *rv3d = CTX_wm_region_view3d(C);
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float imat[4][4];
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float size;
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glDisable(GL_DEPTH_TEST);
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size = 2.5f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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invert_m4_m4(imat, rv3d->viewmat);
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for (p = t->tsnap.points.first; p; p = p->next) {
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if (p == t->tsnap.selectedPoint) {
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glColor4ubv(selectedCol);
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} else {
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glColor4ubv(col);
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}
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drawcircball(GL_LINE_LOOP, p->co, ED_view3d_pixel_size(rv3d, p->co) * size * 0.75f, imat);
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}
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if (t->tsnap.status & POINT_INIT) {
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glColor4ubv(activeCol);
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drawcircball(GL_LINE_LOOP, t->tsnap.snapPoint, ED_view3d_pixel_size(rv3d, t->tsnap.snapPoint) * size, imat);
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}
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/* draw normal if needed */
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if (usingSnappingNormal(t) && validSnappingNormal(t))
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{
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glColor4ubv(activeCol);
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glBegin(GL_LINES);
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glVertex3f(t->tsnap.snapPoint[0], t->tsnap.snapPoint[1], t->tsnap.snapPoint[2]);
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glVertex3f( t->tsnap.snapPoint[0] + t->tsnap.snapNormal[0],
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t->tsnap.snapPoint[1] + t->tsnap.snapNormal[1],
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t->tsnap.snapPoint[2] + t->tsnap.snapNormal[2]);
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glEnd();
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}
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if(v3d->zbuf)
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glEnable(GL_DEPTH_TEST);
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}
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else if (t->spacetype==SPACE_IMAGE)
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{
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/*This will not draw, and Im nor sure why - campbell */
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/*
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float xuser_asp, yuser_asp;
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int wi, hi;
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float w, h;
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calc_image_view(G.sima, 'f'); // float
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myortho2(G.v2d->cur.xmin, G.v2d->cur.xmax, G.v2d->cur.ymin, G.v2d->cur.ymax);
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glLoadIdentity();
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ED_space_image_aspect(t->sa->spacedata.first, &xuser_aspx, &yuser_asp);
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ED_space_image_width(t->sa->spacedata.first, &wi, &hi);
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w = (((float)wi)/256.0f)*G.sima->zoom * xuser_asp;
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h = (((float)hi)/256.0f)*G.sima->zoom * yuser_asp;
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cpack(0xFFFFFF);
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glTranslatef(t->tsnap.snapPoint[0], t->tsnap.snapPoint[1], 0.0f);
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//glRectf(0,0,1,1);
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setlinestyle(0);
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cpack(0x0);
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fdrawline(-0.020/w, 0, -0.1/w, 0);
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fdrawline(0.1/w, 0, .020/w, 0);
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fdrawline(0, -0.020/h, 0, -0.1/h);
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fdrawline(0, 0.1/h, 0, 0.020/h);
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glTranslatef(-t->tsnap.snapPoint[0], -t->tsnap.snapPoint[1], 0.0f);
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setlinestyle(0);
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*/
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}
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}
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}
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int handleSnapping(TransInfo *t, wmEvent *event)
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{
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int status = 0;
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#if 0 // XXX need a proper selector for all snap mode
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if (BIF_snappingSupported(t->obedit) && event->type == TABKEY && event->shift)
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{
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/* toggle snap and reinit */
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t->settings->snap_flag ^= SCE_SNAP;
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initSnapping(t, NULL);
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status = 1;
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}
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#endif
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if (event->type == MOUSEMOVE)
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{
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status |= updateSelectedSnapPoint(t);
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}
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return status;
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}
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void applyProject(TransInfo *t)
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{
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/* XXX FLICKER IN OBJECT MODE */
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if ((t->tsnap.project) && activeSnap(t) && (t->flag & T_NO_PROJECT) == 0)
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{
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TransData *td = t->data;
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float tvec[3];
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float imat[4][4];
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int i;
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if(t->flag & (T_EDIT|T_POSE)) {
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Object *ob = t->obedit?t->obedit:t->poseobj;
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invert_m4_m4(imat, ob->obmat);
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}
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for(i = 0 ; i < t->total; i++, td++) {
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float iloc[3], loc[3], no[3];
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float mval[2];
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int dist = 1000;
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if (td->flag & TD_NOACTION)
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break;
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if (td->flag & TD_SKIP)
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continue;
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copy_v3_v3(iloc, td->loc);
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if (t->flag & (T_EDIT|T_POSE))
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{
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Object *ob = t->obedit?t->obedit:t->poseobj;
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mul_m4_v3(ob->obmat, iloc);
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}
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else if (t->flag & T_OBJECT)
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{
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td->ob->recalc |= OB_RECALC_OB|OB_RECALC_DATA|OB_RECALC_TIME;
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object_handle_update(t->scene, td->ob);
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copy_v3_v3(iloc, td->ob->obmat[3]);
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}
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project_float(t->ar, iloc, mval);
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if (snapObjectsTransform(t, mval, &dist, loc, no, t->tsnap.modeSelect))
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{
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// if(t->flag & (T_EDIT|T_POSE)) {
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// mul_m4_v3(imat, loc);
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// }
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//
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sub_v3_v3v3(tvec, loc, iloc);
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mul_m3_v3(td->smtx, tvec);
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add_v3_v3(td->loc, tvec);
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}
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//XXX constraintTransLim(t, td);
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}
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}
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}
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void applySnapping(TransInfo *t, float *vec)
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{
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/* project is not applied this way */
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if (t->tsnap.project)
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return;
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if (t->tsnap.status & SNAP_FORCED)
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{
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t->tsnap.targetSnap(t);
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t->tsnap.applySnap(t, vec);
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}
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else if ((t->tsnap.mode != SCE_SNAP_MODE_INCREMENT) && activeSnap(t))
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{
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double current = PIL_check_seconds_timer();
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// Time base quirky code to go around findnearest slowness
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/* !TODO! add exception for object mode, no need to slow it down then */
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if (current - t->tsnap.last >= 0.01)
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{
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t->tsnap.calcSnap(t, vec);
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t->tsnap.targetSnap(t);
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t->tsnap.last = current;
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}
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if (validSnap(t))
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{
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t->tsnap.applySnap(t, vec);
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}
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}
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}
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void resetSnapping(TransInfo *t)
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{
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t->tsnap.status = 0;
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t->tsnap.align = 0;
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t->tsnap.project = 0;
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t->tsnap.mode = 0;
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t->tsnap.modeSelect = 0;
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t->tsnap.target = 0;
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t->tsnap.last = 0;
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t->tsnap.applySnap = NULL;
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t->tsnap.snapNormal[0] = 0;
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t->tsnap.snapNormal[1] = 0;
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t->tsnap.snapNormal[2] = 0;
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}
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int usingSnappingNormal(TransInfo *t)
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{
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return t->tsnap.align;
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}
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int validSnappingNormal(TransInfo *t)
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{
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if (validSnap(t))
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{
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if (dot_v3v3(t->tsnap.snapNormal, t->tsnap.snapNormal) > 0)
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{
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return 1;
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}
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}
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return 0;
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}
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static void initSnappingMode(TransInfo *t)
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{
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ToolSettings *ts = t->settings;
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Object *obedit = t->obedit;
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Scene *scene = t->scene;
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/* force project off when not supported */
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if (ts->snap_mode != SCE_SNAP_MODE_FACE)
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{
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t->tsnap.project = 0;
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}
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t->tsnap.mode = ts->snap_mode;
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if ((t->spacetype == SPACE_VIEW3D || t->spacetype == SPACE_IMAGE) && // Only 3D view or UV
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(t->flag & T_CAMERA) == 0) { // Not with camera selected in camera view
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setSnappingCallback(t);
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/* Edit mode */
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if (t->tsnap.applySnap != NULL && // A snapping function actually exist
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(obedit != NULL && ELEM4(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE)) ) // Temporary limited to edit mode meshes, armature, curves
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{
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/* Exclude editmesh if using proportional edit */
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if ((obedit->type == OB_MESH) && (t->flag & T_PROP_EDIT))
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{
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t->tsnap.modeSelect = SNAP_NOT_OBEDIT;
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}
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else
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{
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t->tsnap.modeSelect = t->tsnap.snap_self ? SNAP_ALL : SNAP_NOT_OBEDIT;
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}
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}
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/* Particles edit mode*/
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else if (t->tsnap.applySnap != NULL && // A snapping function actually exist
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(obedit == NULL && BASACT && BASACT->object && BASACT->object->mode & OB_MODE_PARTICLE_EDIT ))
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{
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t->tsnap.modeSelect = SNAP_ALL;
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}
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/* Object mode */
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else if (t->tsnap.applySnap != NULL && // A snapping function actually exist
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(obedit == NULL) ) // Object Mode
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{
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t->tsnap.modeSelect = SNAP_NOT_SELECTED;
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}
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else
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{
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/* Grid if snap is not possible */
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t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
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}
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}
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else
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{
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/* Always grid outside of 3D view */
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t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
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}
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}
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void initSnapping(TransInfo *t, wmOperator *op)
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{
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ToolSettings *ts = t->settings;
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short snap_target = t->settings->snap_target;
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resetSnapping(t);
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/* if snap property exists */
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if (op && RNA_struct_find_property(op->ptr, "snap") && RNA_struct_property_is_set(op->ptr, "snap"))
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{
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if (RNA_boolean_get(op->ptr, "snap"))
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{
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t->modifiers |= MOD_SNAP;
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if (RNA_struct_property_is_set(op->ptr, "snap_target"))
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{
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snap_target = RNA_enum_get(op->ptr, "snap_target");
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}
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if (RNA_struct_property_is_set(op->ptr, "snap_point"))
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{
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RNA_float_get_array(op->ptr, "snap_point", t->tsnap.snapPoint);
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t->tsnap.status |= SNAP_FORCED|POINT_INIT;
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}
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/* snap align only defined in specific cases */
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if (RNA_struct_find_property(op->ptr, "snap_align"))
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{
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t->tsnap.align = RNA_boolean_get(op->ptr, "snap_align");
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RNA_float_get_array(op->ptr, "snap_normal", t->tsnap.snapNormal);
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normalize_v3(t->tsnap.snapNormal);
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}
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if (RNA_struct_find_property(op->ptr, "use_snap_project"))
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{
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t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project");
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}
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if (RNA_struct_find_property(op->ptr, "use_snap_self"))
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{
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t->tsnap.snap_self = RNA_boolean_get(op->ptr, "use_snap_self");
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}
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}
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}
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/* use scene defaults only when transform is modal */
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else if (t->flag & T_MODAL)
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{
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if(ELEM(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE))
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{
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if (ts->snap_flag & SCE_SNAP) {
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t->modifiers |= MOD_SNAP;
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}
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t->tsnap.align = ((t->settings->snap_flag & SCE_SNAP_ROTATE) == SCE_SNAP_ROTATE);
|
|
t->tsnap.project = ((t->settings->snap_flag & SCE_SNAP_PROJECT) == SCE_SNAP_PROJECT);
|
|
t->tsnap.snap_self = !((t->settings->snap_flag & SCE_SNAP_NO_SELF) == SCE_SNAP_NO_SELF);
|
|
t->tsnap.peel = ((t->settings->snap_flag & SCE_SNAP_PROJECT) == SCE_SNAP_PROJECT);
|
|
}
|
|
}
|
|
|
|
t->tsnap.target = snap_target;
|
|
|
|
initSnappingMode(t);
|
|
}
|
|
|
|
static void setSnappingCallback(TransInfo *t)
|
|
{
|
|
t->tsnap.calcSnap = CalcSnapGeometry;
|
|
|
|
switch(t->tsnap.target)
|
|
{
|
|
case SCE_SNAP_TARGET_CLOSEST:
|
|
t->tsnap.targetSnap = TargetSnapClosest;
|
|
break;
|
|
case SCE_SNAP_TARGET_CENTER:
|
|
t->tsnap.targetSnap = TargetSnapCenter;
|
|
break;
|
|
case SCE_SNAP_TARGET_MEDIAN:
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
break;
|
|
case SCE_SNAP_TARGET_ACTIVE:
|
|
t->tsnap.targetSnap = TargetSnapActive;
|
|
break;
|
|
|
|
}
|
|
|
|
switch (t->mode)
|
|
{
|
|
case TFM_TRANSLATION:
|
|
t->tsnap.applySnap = ApplySnapTranslation;
|
|
t->tsnap.distance = TranslationBetween;
|
|
break;
|
|
case TFM_ROTATION:
|
|
t->tsnap.applySnap = ApplySnapRotation;
|
|
t->tsnap.distance = RotationBetween;
|
|
|
|
// Can't do TARGET_CENTER with rotation, use TARGET_MEDIAN instead
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CENTER) {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
}
|
|
break;
|
|
case TFM_RESIZE:
|
|
t->tsnap.applySnap = ApplySnapResize;
|
|
t->tsnap.distance = ResizeBetween;
|
|
|
|
// Can't do TARGET_CENTER with resize, use TARGET_MEDIAN instead
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CENTER) {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
}
|
|
break;
|
|
default:
|
|
t->tsnap.applySnap = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void addSnapPoint(TransInfo *t)
|
|
{
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
TransSnapPoint *p = MEM_callocN(sizeof(TransSnapPoint), "SnapPoint");
|
|
|
|
t->tsnap.selectedPoint = p;
|
|
|
|
copy_v3_v3(p->co, t->tsnap.snapPoint);
|
|
|
|
BLI_addtail(&t->tsnap.points, p);
|
|
|
|
t->tsnap.status |= MULTI_POINTS;
|
|
}
|
|
}
|
|
|
|
int updateSelectedSnapPoint(TransInfo *t)
|
|
{
|
|
int status = 0;
|
|
if (t->tsnap.status & MULTI_POINTS) {
|
|
TransSnapPoint *p, *closest_p = NULL;
|
|
int closest_dist = 0;
|
|
int screen_loc[2];
|
|
|
|
for( p = t->tsnap.points.first; p; p = p->next ) {
|
|
int dx, dy;
|
|
int dist;
|
|
|
|
project_int(t->ar, p->co, screen_loc);
|
|
|
|
dx = t->mval[0] - screen_loc[0];
|
|
dy = t->mval[1] - screen_loc[1];
|
|
|
|
dist = dx * dx + dy * dy;
|
|
|
|
if (dist < 100 && (closest_p == NULL || closest_dist > dist)) {
|
|
closest_p = p;
|
|
closest_dist = dist;
|
|
}
|
|
}
|
|
|
|
if (closest_p) {
|
|
status = t->tsnap.selectedPoint == closest_p ? 0 : 1;
|
|
t->tsnap.selectedPoint = closest_p;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
void removeSnapPoint(TransInfo *t)
|
|
{
|
|
if (t->tsnap.status & MULTI_POINTS) {
|
|
updateSelectedSnapPoint(t);
|
|
|
|
if (t->tsnap.selectedPoint) {
|
|
BLI_freelinkN(&t->tsnap.points, t->tsnap.selectedPoint);
|
|
|
|
if (t->tsnap.points.first == NULL) {
|
|
t->tsnap.status &= ~MULTI_POINTS;
|
|
}
|
|
|
|
t->tsnap.selectedPoint = NULL;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
void getSnapPoint(TransInfo *t, float vec[3])
|
|
{
|
|
if (t->tsnap.points.first) {
|
|
TransSnapPoint *p;
|
|
int total = 0;
|
|
|
|
vec[0] = vec[1] = vec[2] = 0;
|
|
|
|
for (p = t->tsnap.points.first; p; p = p->next, total++) {
|
|
add_v3_v3(vec, p->co);
|
|
}
|
|
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
add_v3_v3(vec, t->tsnap.snapPoint);
|
|
total++;
|
|
}
|
|
|
|
mul_v3_fl(vec, 1.0f / total);
|
|
} else {
|
|
copy_v3_v3(vec, t->tsnap.snapPoint);
|
|
}
|
|
}
|
|
|
|
/********************** APPLY **************************/
|
|
|
|
static void ApplySnapTranslation(TransInfo *t, float vec[3])
|
|
{
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
sub_v3_v3v3(vec, point, t->tsnap.snapTarget);
|
|
}
|
|
|
|
static void ApplySnapRotation(TransInfo *t, float *vec)
|
|
{
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CLOSEST) {
|
|
*vec = t->tsnap.dist;
|
|
}
|
|
else {
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
*vec = RotationBetween(t, t->tsnap.snapTarget, point);
|
|
}
|
|
}
|
|
|
|
static void ApplySnapResize(TransInfo *t, float vec[3])
|
|
{
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CLOSEST) {
|
|
vec[0] = vec[1] = vec[2] = t->tsnap.dist;
|
|
}
|
|
else {
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
vec[0] = vec[1] = vec[2] = ResizeBetween(t, t->tsnap.snapTarget, point);
|
|
}
|
|
}
|
|
|
|
/********************** DISTANCE **************************/
|
|
|
|
static float TranslationBetween(TransInfo *UNUSED(t), float p1[3], float p2[3])
|
|
{
|
|
return len_v3v3(p1, p2);
|
|
}
|
|
|
|
static float RotationBetween(TransInfo *t, float p1[3], float p2[3])
|
|
{
|
|
float angle, start[3], end[3], center[3];
|
|
|
|
copy_v3_v3(center, t->center);
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, center);
|
|
}
|
|
|
|
sub_v3_v3v3(start, p1, center);
|
|
sub_v3_v3v3(end, p2, center);
|
|
|
|
// Angle around a constraint axis (error prone, will need debug)
|
|
if (t->con.applyRot != NULL && (t->con.mode & CON_APPLY)) {
|
|
float axis[3], tmp[3];
|
|
|
|
t->con.applyRot(t, NULL, axis, NULL);
|
|
|
|
project_v3_v3v3(tmp, end, axis);
|
|
sub_v3_v3v3(end, end, tmp);
|
|
|
|
project_v3_v3v3(tmp, start, axis);
|
|
sub_v3_v3v3(start, start, tmp);
|
|
|
|
normalize_v3(end);
|
|
normalize_v3(start);
|
|
|
|
cross_v3_v3v3(tmp, start, end);
|
|
|
|
if (dot_v3v3(tmp, axis) < 0.0f)
|
|
angle = -acos(dot_v3v3(start, end));
|
|
else
|
|
angle = acos(dot_v3v3(start, end));
|
|
}
|
|
else {
|
|
float mtx[3][3];
|
|
|
|
copy_m3_m4(mtx, t->viewmat);
|
|
|
|
mul_m3_v3(mtx, end);
|
|
mul_m3_v3(mtx, start);
|
|
|
|
angle = atan2(start[1],start[0]) - atan2(end[1],end[0]);
|
|
}
|
|
|
|
if (angle > (float)M_PI) {
|
|
angle = angle - 2 * (float)M_PI;
|
|
}
|
|
else if (angle < -((float)M_PI)) {
|
|
angle = 2.0f * (float)M_PI + angle;
|
|
}
|
|
|
|
return angle;
|
|
}
|
|
|
|
static float ResizeBetween(TransInfo *t, float p1[3], float p2[3])
|
|
{
|
|
float d1[3], d2[3], center[3], len_d1;
|
|
|
|
copy_v3_v3(center, t->center);
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, center);
|
|
}
|
|
|
|
sub_v3_v3v3(d1, p1, center);
|
|
sub_v3_v3v3(d2, p2, center);
|
|
|
|
if (t->con.applyRot != NULL && (t->con.mode & CON_APPLY)) {
|
|
mul_m3_v3(t->con.pmtx, d1);
|
|
mul_m3_v3(t->con.pmtx, d2);
|
|
}
|
|
|
|
len_d1 = len_v3(d1);
|
|
|
|
return len_d1 != 0.0f ? len_v3(d2) / len_d1 : 1;
|
|
}
|
|
|
|
/********************** CALC **************************/
|
|
|
|
static void UNUSED_FUNCTION(CalcSnapGrid)(TransInfo *t, float *UNUSED(vec))
|
|
{
|
|
snapGridAction(t, t->tsnap.snapPoint, BIG_GEARS);
|
|
}
|
|
|
|
static void CalcSnapGeometry(TransInfo *t, float *UNUSED(vec))
|
|
{
|
|
if (t->spacetype == SPACE_VIEW3D)
|
|
{
|
|
float loc[3];
|
|
float no[3];
|
|
float mval[2];
|
|
int found = 0;
|
|
int dist = SNAP_MIN_DISTANCE; // Use a user defined value here
|
|
|
|
mval[0] = t->mval[0];
|
|
mval[1] = t->mval[1];
|
|
|
|
if (t->tsnap.mode == SCE_SNAP_MODE_VOLUME)
|
|
{
|
|
ListBase depth_peels;
|
|
DepthPeel *p1, *p2;
|
|
float *last_p = NULL;
|
|
float max_dist = FLT_MAX;
|
|
float p[3] = {0.0f, 0.0f, 0.0f};
|
|
|
|
depth_peels.first = depth_peels.last = NULL;
|
|
|
|
peelObjectsTransForm(t, &depth_peels, mval);
|
|
|
|
// if (LAST_SNAP_POINT_VALID)
|
|
// {
|
|
// last_p = LAST_SNAP_POINT;
|
|
// }
|
|
// else
|
|
// {
|
|
last_p = t->tsnap.snapPoint;
|
|
// }
|
|
|
|
|
|
for (p1 = depth_peels.first; p1; p1 = p1->next)
|
|
{
|
|
if (p1->flag == 0)
|
|
{
|
|
float vec[3];
|
|
float new_dist;
|
|
|
|
p2 = NULL;
|
|
p1->flag = 1;
|
|
|
|
/* if peeling objects, take the first and last from each object */
|
|
if (t->settings->snap_flag & SCE_SNAP_PEEL_OBJECT)
|
|
{
|
|
DepthPeel *peel;
|
|
for (peel = p1->next; peel; peel = peel->next)
|
|
{
|
|
if (peel->ob == p1->ob)
|
|
{
|
|
peel->flag = 1;
|
|
p2 = peel;
|
|
}
|
|
}
|
|
}
|
|
/* otherwise, pair first with second and so on */
|
|
else
|
|
{
|
|
for (p2 = p1->next; p2 && p2->ob != p1->ob; p2 = p2->next)
|
|
{
|
|
/* nothing to do here */
|
|
}
|
|
}
|
|
|
|
if (p2)
|
|
{
|
|
p2->flag = 1;
|
|
|
|
add_v3_v3v3(vec, p1->p, p2->p);
|
|
mul_v3_fl(vec, 0.5f);
|
|
}
|
|
else
|
|
{
|
|
copy_v3_v3(vec, p1->p);
|
|
}
|
|
|
|
if (last_p == NULL)
|
|
{
|
|
copy_v3_v3(p, vec);
|
|
max_dist = 0;
|
|
break;
|
|
}
|
|
|
|
new_dist = len_v3v3(last_p, vec);
|
|
|
|
if (new_dist < max_dist)
|
|
{
|
|
copy_v3_v3(p, vec);
|
|
max_dist = new_dist;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (max_dist != FLT_MAX)
|
|
{
|
|
copy_v3_v3(loc, p);
|
|
/* XXX, is there a correct normal in this case ???, for now just z up */
|
|
no[0]= 0.0;
|
|
no[1]= 0.0;
|
|
no[2]= 1.0;
|
|
found = 1;
|
|
}
|
|
|
|
BLI_freelistN(&depth_peels);
|
|
}
|
|
else
|
|
{
|
|
found = snapObjectsTransform(t, mval, &dist, loc, no, t->tsnap.modeSelect);
|
|
}
|
|
|
|
if (found == 1)
|
|
{
|
|
float tangent[3];
|
|
|
|
sub_v3_v3v3(tangent, loc, t->tsnap.snapPoint);
|
|
tangent[2] = 0;
|
|
|
|
if (dot_v3v3(tangent, tangent) > 0)
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTangent, tangent);
|
|
}
|
|
|
|
copy_v3_v3(t->tsnap.snapPoint, loc);
|
|
copy_v3_v3(t->tsnap.snapNormal, no);
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else
|
|
{
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE && t->obedit != NULL && t->obedit->type==OB_MESH)
|
|
{ /* same as above but for UV's */
|
|
/* same as above but for UV's */
|
|
Image *ima= ED_space_image(t->sa->spacedata.first);
|
|
float aspx, aspy, co[2];
|
|
|
|
UI_view2d_region_to_view(&t->ar->v2d, t->mval[0], t->mval[1], co, co+1);
|
|
|
|
if(ED_uvedit_nearest_uv(t->scene, t->obedit, ima, co, t->tsnap.snapPoint))
|
|
{
|
|
ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
|
|
t->tsnap.snapPoint[0] *= aspx;
|
|
t->tsnap.snapPoint[1] *= aspy;
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else
|
|
{
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/********************** TARGET **************************/
|
|
|
|
static void TargetSnapCenter(TransInfo *t)
|
|
{
|
|
// Only need to calculate once
|
|
if ((t->tsnap.status & TARGET_INIT) == 0)
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, t->center);
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, t->tsnap.snapTarget);
|
|
}
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapActive(TransInfo *t)
|
|
{
|
|
// Only need to calculate once
|
|
if ((t->tsnap.status & TARGET_INIT) == 0)
|
|
{
|
|
TransData *td = NULL;
|
|
TransData *active_td = NULL;
|
|
int i;
|
|
|
|
for(td = t->data, i = 0 ; i < t->total && td->flag & TD_SELECTED ; i++, td++)
|
|
{
|
|
if (td->flag & TD_ACTIVE)
|
|
{
|
|
active_td = td;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (active_td)
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, active_td->center);
|
|
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, t->tsnap.snapTarget);
|
|
}
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
/* No active, default to median */
|
|
else
|
|
{
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
TargetSnapMedian(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void TargetSnapMedian(TransInfo *t)
|
|
{
|
|
// Only need to calculate once
|
|
if ((t->tsnap.status & TARGET_INIT) == 0)
|
|
{
|
|
TransData *td = NULL;
|
|
int i;
|
|
|
|
t->tsnap.snapTarget[0] = 0;
|
|
t->tsnap.snapTarget[1] = 0;
|
|
t->tsnap.snapTarget[2] = 0;
|
|
|
|
for(td = t->data, i = 0 ; i < t->total && td->flag & TD_SELECTED ; i++, td++)
|
|
{
|
|
add_v3_v3(t->tsnap.snapTarget, td->center);
|
|
}
|
|
|
|
mul_v3_fl(t->tsnap.snapTarget, 1.0 / i);
|
|
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, t->tsnap.snapTarget);
|
|
}
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapClosest(TransInfo *t)
|
|
{
|
|
// Only valid if a snap point has been selected
|
|
if (t->tsnap.status & POINT_INIT)
|
|
{
|
|
TransData *closest = NULL, *td = NULL;
|
|
|
|
/* Object mode */
|
|
if (t->flag & T_OBJECT)
|
|
{
|
|
int i;
|
|
for(td = t->data, i = 0 ; i < t->total && td->flag & TD_SELECTED ; i++, td++)
|
|
{
|
|
struct BoundBox *bb = object_get_boundbox(td->ob);
|
|
|
|
/* use boundbox if possible */
|
|
if (bb)
|
|
{
|
|
int j;
|
|
|
|
for (j = 0; j < 8; j++) {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, bb->vec[j]);
|
|
mul_m4_v3(td->ext->obmat, loc);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if (closest == NULL || fabs(dist) < fabs(t->tsnap.dist))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
t->tsnap.dist = dist;
|
|
}
|
|
}
|
|
}
|
|
/* use element center otherwise */
|
|
else
|
|
{
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if (closest == NULL || fabs(dist) < fabs(t->tsnap.dist))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
t->tsnap.dist = dist;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int i;
|
|
for(td = t->data, i = 0 ; i < t->total && td->flag & TD_SELECTED ; i++, td++)
|
|
{
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
if(t->flag & (T_EDIT|T_POSE)) {
|
|
Object *ob= t->obedit?t->obedit:t->poseobj;
|
|
mul_m4_v3(ob->obmat, loc);
|
|
}
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if (closest == NULL || fabs(dist) < fabs(t->tsnap.dist))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
t->tsnap.dist = dist;
|
|
}
|
|
}
|
|
}
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
/*================================================================*/
|
|
#ifndef USE_BVH_FACE_SNAP
|
|
static int snapFace(ARegion *ar, float v1co[3], float v2co[3], float v3co[3], float *v4co, float mval[2], float ray_start[3], float ray_start_local[3], float ray_normal_local[3], float obmat[][4], float timat[][3], float loc[3], float no[3], int *dist, float *depth)
|
|
{
|
|
float lambda;
|
|
int result;
|
|
int retval = 0;
|
|
|
|
result = isect_ray_tri_threshold_v3(ray_start_local, ray_normal_local, v1co, v2co, v3co, &lambda, NULL, 0.001);
|
|
|
|
if (result) {
|
|
float location[3], normal[3];
|
|
float intersect[3];
|
|
float new_depth;
|
|
int screen_loc[2];
|
|
int new_dist;
|
|
|
|
copy_v3_v3(intersect, ray_normal_local);
|
|
mul_v3_fl(intersect, lambda);
|
|
add_v3_v3(intersect, ray_start_local);
|
|
|
|
copy_v3_v3(location, intersect);
|
|
|
|
if (v4co)
|
|
normal_quad_v3( normal,v1co, v2co, v3co, v4co);
|
|
else
|
|
normal_tri_v3( normal,v1co, v2co, v3co);
|
|
|
|
mul_m4_v3(obmat, location);
|
|
|
|
new_depth = len_v3v3(location, ray_start);
|
|
|
|
project_int(ar, location, screen_loc);
|
|
new_dist = abs(screen_loc[0] - (int)mval[0]) + abs(screen_loc[1] - (int)mval[1]);
|
|
|
|
if (new_dist <= *dist && new_depth < *depth)
|
|
{
|
|
*depth = new_depth;
|
|
retval = 1;
|
|
|
|
copy_v3_v3(loc, location);
|
|
copy_v3_v3(no, normal);
|
|
|
|
mul_m3_v3(timat, no);
|
|
normalize_v3(no);
|
|
|
|
*dist = new_dist;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
#endif
|
|
|
|
static int snapEdge(ARegion *ar, float v1co[3], short v1no[3], float v2co[3], short v2no[3], float obmat[][4], float timat[][3],
|
|
const float ray_start[3], const float ray_start_local[3], const float ray_normal_local[3], const float mval[2],
|
|
float r_loc[3], float r_no[3], int *r_dist, float *r_depth)
|
|
{
|
|
float intersect[3] = {0, 0, 0}, ray_end[3], dvec[3];
|
|
int result;
|
|
int retval = 0;
|
|
|
|
copy_v3_v3(ray_end, ray_normal_local);
|
|
mul_v3_fl(ray_end, 2000);
|
|
add_v3_v3v3(ray_end, ray_start_local, ray_end);
|
|
|
|
result = isect_line_line_v3(v1co, v2co, ray_start_local, ray_end, intersect, dvec); /* dvec used but we don't care about result */
|
|
|
|
if (result)
|
|
{
|
|
float edge_loc[3], vec[3];
|
|
float mul;
|
|
|
|
/* check for behind ray_start */
|
|
sub_v3_v3v3(dvec, intersect, ray_start_local);
|
|
|
|
sub_v3_v3v3(edge_loc, v1co, v2co);
|
|
sub_v3_v3v3(vec, intersect, v2co);
|
|
|
|
mul = dot_v3v3(vec, edge_loc) / dot_v3v3(edge_loc, edge_loc);
|
|
|
|
if (mul > 1) {
|
|
mul = 1;
|
|
copy_v3_v3(intersect, v1co);
|
|
}
|
|
else if (mul < 0) {
|
|
mul = 0;
|
|
copy_v3_v3(intersect, v2co);
|
|
}
|
|
|
|
if (dot_v3v3(ray_normal_local, dvec) > 0)
|
|
{
|
|
float location[3];
|
|
float new_depth;
|
|
int screen_loc[2];
|
|
int new_dist;
|
|
|
|
copy_v3_v3(location, intersect);
|
|
|
|
mul_m4_v3(obmat, location);
|
|
|
|
new_depth = len_v3v3(location, ray_start);
|
|
|
|
project_int(ar, location, screen_loc);
|
|
new_dist = abs(screen_loc[0] - (int)mval[0]) + abs(screen_loc[1] - (int)mval[1]);
|
|
|
|
/* 10% threshold if edge is closer but a bit further
|
|
* this takes care of series of connected edges a bit slanted w.r.t the viewport
|
|
* otherwise, it would stick to the verts of the closest edge and not slide along merrily
|
|
* */
|
|
if (new_dist <= *r_dist && new_depth < *r_depth * 1.001f)
|
|
{
|
|
float n1[3], n2[3];
|
|
|
|
*r_depth = new_depth;
|
|
retval = 1;
|
|
|
|
sub_v3_v3v3(edge_loc, v1co, v2co);
|
|
sub_v3_v3v3(vec, intersect, v2co);
|
|
|
|
mul = dot_v3v3(vec, edge_loc) / dot_v3v3(edge_loc, edge_loc);
|
|
|
|
if (r_no)
|
|
{
|
|
normal_short_to_float_v3(n1, v1no);
|
|
normal_short_to_float_v3(n2, v2no);
|
|
interp_v3_v3v3(r_no, n2, n1, mul);
|
|
mul_m3_v3(timat, r_no);
|
|
normalize_v3(r_no);
|
|
}
|
|
|
|
copy_v3_v3(r_loc, location);
|
|
|
|
*r_dist = new_dist;
|
|
}
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int snapVertex(ARegion *ar, float vco[3], short vno[3], float obmat[][4], float timat[][3],
|
|
const float ray_start[3], const float ray_start_local[3], const float ray_normal_local[3], const float mval[2],
|
|
float r_loc[3], float r_no[3], int *r_dist, float *r_depth)
|
|
{
|
|
int retval = 0;
|
|
float dvec[3];
|
|
|
|
sub_v3_v3v3(dvec, vco, ray_start_local);
|
|
|
|
if (dot_v3v3(ray_normal_local, dvec) > 0)
|
|
{
|
|
float location[3];
|
|
float new_depth;
|
|
int screen_loc[2];
|
|
int new_dist;
|
|
|
|
copy_v3_v3(location, vco);
|
|
|
|
mul_m4_v3(obmat, location);
|
|
|
|
new_depth = len_v3v3(location, ray_start);
|
|
|
|
project_int(ar, location, screen_loc);
|
|
new_dist = abs(screen_loc[0] - (int)mval[0]) + abs(screen_loc[1] - (int)mval[1]);
|
|
|
|
if (new_dist <= *r_dist && new_depth < *r_depth)
|
|
{
|
|
*r_depth = new_depth;
|
|
retval = 1;
|
|
|
|
copy_v3_v3(r_loc, location);
|
|
|
|
if (r_no)
|
|
{
|
|
normal_short_to_float_v3(r_no, vno);
|
|
mul_m3_v3(timat, r_no);
|
|
normalize_v3(r_no);
|
|
}
|
|
|
|
*r_dist = new_dist;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int snapArmature(short snap_mode, ARegion *ar, Object *ob, bArmature *arm, float obmat[][4],
|
|
const float ray_start[3], const float ray_normal[3], const float mval[2],
|
|
float r_loc[3], float *UNUSED(r_no), int *r_dist, float *r_depth)
|
|
{
|
|
float imat[4][4];
|
|
float ray_start_local[3], ray_normal_local[3];
|
|
int retval = 0;
|
|
|
|
invert_m4_m4(imat, obmat);
|
|
|
|
copy_v3_v3(ray_start_local, ray_start);
|
|
copy_v3_v3(ray_normal_local, ray_normal);
|
|
|
|
mul_m4_v3(imat, ray_start_local);
|
|
mul_mat3_m4_v3(imat, ray_normal_local);
|
|
|
|
if(arm->edbo)
|
|
{
|
|
EditBone *eBone;
|
|
|
|
for (eBone=arm->edbo->first; eBone; eBone=eBone->next) {
|
|
if (eBone->layer & arm->layer) {
|
|
/* skip hidden or moving (selected) bones */
|
|
if ((eBone->flag & (BONE_HIDDEN_A|BONE_ROOTSEL|BONE_TIPSEL))==0) {
|
|
switch (snap_mode)
|
|
{
|
|
case SCE_SNAP_MODE_VERTEX:
|
|
retval |= snapVertex(ar, eBone->head, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
retval |= snapVertex(ar, eBone->tail, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
break;
|
|
case SCE_SNAP_MODE_EDGE:
|
|
retval |= snapEdge(ar, eBone->head, NULL, eBone->tail, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (ob->pose && ob->pose->chanbase.first)
|
|
{
|
|
bPoseChannel *pchan;
|
|
Bone *bone;
|
|
|
|
for (pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
|
|
bone= pchan->bone;
|
|
/* skip hidden bones */
|
|
if (bone && !(bone->flag & (BONE_HIDDEN_P|BONE_HIDDEN_PG))) {
|
|
float *head_vec = pchan->pose_head;
|
|
float *tail_vec = pchan->pose_tail;
|
|
|
|
switch (snap_mode)
|
|
{
|
|
case SCE_SNAP_MODE_VERTEX:
|
|
retval |= snapVertex(ar, head_vec, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
retval |= snapVertex(ar, tail_vec, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
break;
|
|
case SCE_SNAP_MODE_EDGE:
|
|
retval |= snapEdge(ar, head_vec, NULL, tail_vec, NULL, obmat, NULL, ray_start, ray_start_local, ray_normal_local, mval, r_loc, NULL, r_dist, r_depth);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int snapDerivedMesh(short snap_mode, ARegion *ar, Object *ob, DerivedMesh *dm, BMEditMesh *em, float obmat[][4],
|
|
const float ray_start[3], const float ray_normal[3], const float mval[2],
|
|
float r_loc[3], float r_no[3], int *r_dist, float *r_depth)
|
|
{
|
|
int retval = 0;
|
|
int totvert = dm->getNumVerts(dm);
|
|
int totface = dm->getNumTessFaces(dm);
|
|
|
|
if (totvert > 0) {
|
|
float imat[4][4];
|
|
float timat[3][3]; /* transpose inverse matrix for normals */
|
|
float ray_start_local[3], ray_normal_local[3];
|
|
int test = 1;
|
|
|
|
invert_m4_m4(imat, obmat);
|
|
|
|
copy_m3_m4(timat, imat);
|
|
transpose_m3(timat);
|
|
|
|
copy_v3_v3(ray_start_local, ray_start);
|
|
copy_v3_v3(ray_normal_local, ray_normal);
|
|
|
|
mul_m4_v3(imat, ray_start_local);
|
|
mul_mat3_m4_v3(imat, ray_normal_local);
|
|
|
|
|
|
/* If number of vert is more than an arbitrary limit,
|
|
* test against boundbox first
|
|
* */
|
|
if (totface > 16) {
|
|
struct BoundBox *bb = object_get_boundbox(ob);
|
|
test = ray_hit_boundbox(bb, ray_start_local, ray_normal_local);
|
|
}
|
|
|
|
if (test == 1) {
|
|
|
|
switch (snap_mode)
|
|
{
|
|
case SCE_SNAP_MODE_FACE:
|
|
{
|
|
#ifdef USE_BVH_FACE_SNAP // Added for durian
|
|
BVHTreeRayHit hit;
|
|
BVHTreeFromMesh treeData;
|
|
|
|
/* local scale in normal direction */
|
|
float local_scale = len_v3(ray_normal_local);
|
|
|
|
treeData.em_evil= em;
|
|
bvhtree_from_mesh_faces(&treeData, dm, 0.0f, 4, 6);
|
|
|
|
hit.index = -1;
|
|
hit.dist = *r_depth * (*r_depth == FLT_MAX ? 1.0f : local_scale);
|
|
|
|
if(treeData.tree && BLI_bvhtree_ray_cast(treeData.tree, ray_start_local, ray_normal_local, 0.0f, &hit, treeData.raycast_callback, &treeData) != -1)
|
|
{
|
|
if(hit.dist/local_scale <= *r_depth) {
|
|
*r_depth= hit.dist/local_scale;
|
|
copy_v3_v3(r_loc, hit.co);
|
|
copy_v3_v3(r_no, hit.no);
|
|
|
|
/* back to worldspace */
|
|
mul_m4_v3(obmat, r_loc);
|
|
copy_v3_v3(r_no, hit.no);
|
|
|
|
mul_m3_v3(timat, r_no);
|
|
normalize_v3(r_no);
|
|
|
|
retval |= 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
#else
|
|
MVert *verts = dm->getVertArray(dm);
|
|
MFace *faces = dm->getTessFaceArray(dm);
|
|
int *index_array = NULL;
|
|
int index = 0;
|
|
int i;
|
|
|
|
if (em != NULL)
|
|
{
|
|
index_array = dm->getTessFaceDataArray(dm, CD_ORIGINDEX);
|
|
EDBM_init_index_arrays(em, 0, 0, 1);
|
|
}
|
|
|
|
for( i = 0; i < totface; i++) {
|
|
BMFace *efa = NULL;
|
|
MFace *f = faces + i;
|
|
|
|
test = 1; /* reset for every face */
|
|
|
|
if (em != NULL)
|
|
{
|
|
if (index_array)
|
|
{
|
|
index = index_array[i];
|
|
}
|
|
else
|
|
{
|
|
index = i;
|
|
}
|
|
|
|
if (index == ORIGINDEX_NONE)
|
|
{
|
|
test = 0;
|
|
}
|
|
else
|
|
{
|
|
efa = EDBM_get_face_for_index(em, index);
|
|
|
|
if (efa && BM_elem_flag_test(efa, BM_ELEM_HIDDEN))
|
|
{
|
|
test = 0;
|
|
} else if (efa) {
|
|
BMIter iter;
|
|
BMLoop *l;
|
|
|
|
l = BM_iter_new(&iter, em->bm, BM_LOOPS_OF_FACE, efa);
|
|
for ( ; l; l=BM_iter_step(&iter)) {
|
|
if (BM_elem_flag_test(l->v, BM_ELEM_SELECT)) {
|
|
test = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (test)
|
|
{
|
|
int result;
|
|
float *v4co = NULL;
|
|
|
|
if (f->v4)
|
|
{
|
|
v4co = verts[f->v4].co;
|
|
}
|
|
|
|
result = snapFace(ar, verts[f->v1].co, verts[f->v2].co, verts[f->v3].co, v4co, mval, ray_start, ray_start_local, ray_normal_local, obmat, timat, loc, no, dist, depth);
|
|
retval |= result;
|
|
|
|
if (f->v4 && result == 0)
|
|
{
|
|
retval |= snapFace(ar, verts[f->v3].co, verts[f->v4].co, verts[f->v1].co, verts[f->v2].co, mval, ray_start, ray_start_local, ray_normal_local, obmat, timat, loc, no, dist, depth);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (em != NULL)
|
|
{
|
|
EDBM_free_index_arrays(em);
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
case SCE_SNAP_MODE_VERTEX:
|
|
{
|
|
MVert *verts = dm->getVertArray(dm);
|
|
int *index_array = NULL;
|
|
int index = 0;
|
|
int i;
|
|
|
|
if (em != NULL)
|
|
{
|
|
index_array = dm->getVertDataArray(dm, CD_ORIGINDEX);
|
|
EDBM_init_index_arrays(em, 1, 0, 0);
|
|
}
|
|
|
|
for( i = 0; i < totvert; i++) {
|
|
BMVert *eve = NULL;
|
|
MVert *v = verts + i;
|
|
|
|
test = 1; /* reset for every vert */
|
|
|
|
if (em != NULL)
|
|
{
|
|
if (index_array)
|
|
{
|
|
index = index_array[i];
|
|
}
|
|
else
|
|
{
|
|
index = i;
|
|
}
|
|
|
|
if (index == ORIGINDEX_NONE)
|
|
{
|
|
test = 0;
|
|
}
|
|
else
|
|
{
|
|
eve = EDBM_get_vert_for_index(em, index);
|
|
|
|
if (eve && (BM_elem_flag_test(eve, BM_ELEM_HIDDEN) || BM_elem_flag_test(eve, BM_ELEM_SELECT)))
|
|
{
|
|
test = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (test)
|
|
{
|
|
retval |= snapVertex(ar, v->co, v->no, obmat, timat, ray_start, ray_start_local, ray_normal_local, mval, r_loc, r_no, r_dist, r_depth);
|
|
}
|
|
}
|
|
|
|
if (em != NULL)
|
|
{
|
|
EDBM_free_index_arrays(em);
|
|
}
|
|
break;
|
|
}
|
|
case SCE_SNAP_MODE_EDGE:
|
|
{
|
|
MVert *verts = dm->getVertArray(dm);
|
|
MEdge *edges = dm->getEdgeArray(dm);
|
|
int totedge = dm->getNumEdges(dm);
|
|
int *index_array = NULL;
|
|
int index = 0;
|
|
int i;
|
|
|
|
if (em != NULL)
|
|
{
|
|
index_array = dm->getEdgeDataArray(dm, CD_ORIGINDEX);
|
|
EDBM_init_index_arrays(em, 0, 1, 0);
|
|
}
|
|
|
|
for( i = 0; i < totedge; i++) {
|
|
BMEdge *eed = NULL;
|
|
MEdge *e = edges + i;
|
|
|
|
test = 1; /* reset for every vert */
|
|
|
|
if (em != NULL)
|
|
{
|
|
if (index_array)
|
|
{
|
|
index = index_array[i];
|
|
}
|
|
else
|
|
{
|
|
index = i;
|
|
}
|
|
|
|
if (index == ORIGINDEX_NONE)
|
|
{
|
|
test = 0;
|
|
}
|
|
else
|
|
{
|
|
eed = EDBM_get_edge_for_index(em, index);
|
|
|
|
if (eed && (BM_elem_flag_test(eed, BM_ELEM_HIDDEN) ||
|
|
BM_elem_flag_test(eed->v1, BM_ELEM_SELECT) ||
|
|
BM_elem_flag_test(eed->v2, BM_ELEM_SELECT)))
|
|
{
|
|
test = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if (test)
|
|
{
|
|
retval |= snapEdge(ar, verts[e->v1].co, verts[e->v1].no, verts[e->v2].co, verts[e->v2].no, obmat, timat, ray_start, ray_start_local, ray_normal_local, mval, r_loc, r_no, r_dist, r_depth);
|
|
}
|
|
}
|
|
|
|
if (em != NULL)
|
|
{
|
|
EDBM_free_index_arrays(em);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int snapObject(Scene *scene, ARegion *ar, Object *ob, int editobject, float obmat[][4],
|
|
const float ray_start[3], const float ray_normal[3], const float mval[2],
|
|
float r_loc[3], float r_no[3], int *r_dist, float *r_depth)
|
|
{
|
|
ToolSettings *ts= scene->toolsettings;
|
|
int retval = 0;
|
|
|
|
if (ob->type == OB_MESH) {
|
|
BMEditMesh *em;
|
|
DerivedMesh *dm;
|
|
|
|
if (editobject)
|
|
{
|
|
em = ((Mesh *)ob->data)->edit_btmesh;
|
|
/* dm = editbmesh_get_derived_cage(scene, ob, em, CD_MASK_BAREMESH); */
|
|
dm = editbmesh_get_derived_base(ob, em); /* limitation, em & dm MUST have the same number of faces */
|
|
}
|
|
else
|
|
{
|
|
em = NULL;
|
|
dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
|
|
}
|
|
|
|
retval = snapDerivedMesh(ts->snap_mode, ar, ob, dm, em, obmat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, r_depth);
|
|
|
|
dm->release(dm);
|
|
}
|
|
else if (ob->type == OB_ARMATURE)
|
|
{
|
|
retval = snapArmature(ts->snap_mode, ar, ob, ob->data, obmat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, r_depth);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int snapObjects(Scene *scene, View3D *v3d, ARegion *ar, Object *obedit, const float mval[2],
|
|
int *r_dist, float r_loc[3], float r_no[3], SnapMode mode)
|
|
{
|
|
Base *base;
|
|
float depth = FLT_MAX;
|
|
int retval = 0;
|
|
float ray_start[3], ray_normal[3];
|
|
|
|
ED_view3d_win_to_ray(ar, v3d, mval, ray_start, ray_normal);
|
|
|
|
if (mode == SNAP_ALL && obedit)
|
|
{
|
|
Object *ob = obedit;
|
|
|
|
retval |= snapObject(scene, ar, ob, 1, ob->obmat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, &depth);
|
|
}
|
|
|
|
/* Need an exception for particle edit because the base is flagged with BA_HAS_RECALC_DATA
|
|
* which makes the loop skip it, even the derived mesh will never change
|
|
*
|
|
* To solve that problem, we do it first as an exception.
|
|
* */
|
|
base= BASACT;
|
|
if(base && base->object && base->object->mode & OB_MODE_PARTICLE_EDIT)
|
|
{
|
|
Object *ob = base->object;
|
|
retval |= snapObject(scene, ar, ob, 0, ob->obmat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, &depth);
|
|
}
|
|
|
|
for ( base = FIRSTBASE; base != NULL; base = base->next ) {
|
|
if ( (BASE_VISIBLE(v3d, base)) &&
|
|
(base->flag & (BA_HAS_RECALC_OB|BA_HAS_RECALC_DATA)) == 0 &&
|
|
|
|
( (mode == SNAP_NOT_SELECTED && (base->flag & (SELECT|BA_WAS_SEL)) == 0) ||
|
|
(ELEM(mode, SNAP_ALL, SNAP_NOT_OBEDIT) && base != BASACT)) )
|
|
{
|
|
Object *ob = base->object;
|
|
|
|
if (ob->transflag & OB_DUPLI)
|
|
{
|
|
DupliObject *dupli_ob;
|
|
ListBase *lb = object_duplilist(scene, ob);
|
|
|
|
for(dupli_ob = lb->first; dupli_ob; dupli_ob = dupli_ob->next)
|
|
{
|
|
Object *dob = dupli_ob->ob;
|
|
|
|
retval |= snapObject(scene, ar, dob, 0, dupli_ob->mat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, &depth);
|
|
}
|
|
|
|
free_object_duplilist(lb);
|
|
}
|
|
|
|
retval |= snapObject(scene, ar, ob, 0, ob->obmat, ray_start, ray_normal, mval, r_loc, r_no, r_dist, &depth);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
int snapObjectsTransform(TransInfo *t, const float mval[2], int *r_dist, float r_loc[3], float r_no[3], SnapMode mode)
|
|
{
|
|
return snapObjects(t->scene, t->view, t->ar, t->obedit, mval, r_dist, r_loc, r_no, mode);
|
|
}
|
|
|
|
int snapObjectsContext(bContext *C, const float mval[2], int *r_dist, float r_loc[3], float r_no[3], SnapMode mode)
|
|
{
|
|
ScrArea *sa = CTX_wm_area(C);
|
|
View3D *v3d = sa->spacedata.first;
|
|
|
|
return snapObjects(CTX_data_scene(C), v3d, CTX_wm_region(C), CTX_data_edit_object(C), mval, r_dist, r_loc, r_no, mode);
|
|
}
|
|
|
|
/******************** PEELING *********************************/
|
|
|
|
|
|
static int cmpPeel(void *arg1, void *arg2)
|
|
{
|
|
DepthPeel *p1 = arg1;
|
|
DepthPeel *p2 = arg2;
|
|
int val = 0;
|
|
|
|
if (p1->depth < p2->depth)
|
|
{
|
|
val = -1;
|
|
}
|
|
else if (p1->depth > p2->depth)
|
|
{
|
|
val = 1;
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static void removeDoublesPeel(ListBase *depth_peels)
|
|
{
|
|
DepthPeel *peel;
|
|
|
|
for (peel = depth_peels->first; peel; peel = peel->next)
|
|
{
|
|
DepthPeel *next_peel = peel->next;
|
|
|
|
if (next_peel && ABS(peel->depth - next_peel->depth) < 0.0015f)
|
|
{
|
|
peel->next = next_peel->next;
|
|
|
|
if (next_peel->next)
|
|
{
|
|
next_peel->next->prev = peel;
|
|
}
|
|
|
|
MEM_freeN(next_peel);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void addDepthPeel(ListBase *depth_peels, float depth, float p[3], float no[3], Object *ob)
|
|
{
|
|
DepthPeel *peel = MEM_callocN(sizeof(DepthPeel), "DepthPeel");
|
|
|
|
peel->depth = depth;
|
|
peel->ob = ob;
|
|
copy_v3_v3(peel->p, p);
|
|
copy_v3_v3(peel->no, no);
|
|
|
|
BLI_addtail(depth_peels, peel);
|
|
|
|
peel->flag = 0;
|
|
}
|
|
|
|
static int peelDerivedMesh(Object *ob, DerivedMesh *dm, float obmat[][4],
|
|
const float ray_start[3], const float ray_normal[3], const float UNUSED(mval[2]),
|
|
ListBase *depth_peels)
|
|
{
|
|
int retval = 0;
|
|
int totvert = dm->getNumVerts(dm);
|
|
int totface = dm->getNumTessFaces(dm);
|
|
|
|
if (totvert > 0) {
|
|
float imat[4][4];
|
|
float timat[3][3]; /* transpose inverse matrix for normals */
|
|
float ray_start_local[3], ray_normal_local[3];
|
|
int test = 1;
|
|
|
|
invert_m4_m4(imat, obmat);
|
|
|
|
copy_m3_m4(timat, imat);
|
|
transpose_m3(timat);
|
|
|
|
copy_v3_v3(ray_start_local, ray_start);
|
|
copy_v3_v3(ray_normal_local, ray_normal);
|
|
|
|
mul_m4_v3(imat, ray_start_local);
|
|
mul_mat3_m4_v3(imat, ray_normal_local);
|
|
|
|
|
|
/* If number of vert is more than an arbitrary limit,
|
|
* test against boundbox first
|
|
* */
|
|
if (totface > 16) {
|
|
struct BoundBox *bb = object_get_boundbox(ob);
|
|
test = ray_hit_boundbox(bb, ray_start_local, ray_normal_local);
|
|
}
|
|
|
|
if (test == 1) {
|
|
MVert *verts = dm->getVertArray(dm);
|
|
MFace *faces = dm->getTessFaceArray(dm);
|
|
int i;
|
|
|
|
for( i = 0; i < totface; i++) {
|
|
MFace *f = faces + i;
|
|
float lambda;
|
|
int result;
|
|
|
|
|
|
result = isect_ray_tri_threshold_v3(ray_start_local, ray_normal_local, verts[f->v1].co, verts[f->v2].co, verts[f->v3].co, &lambda, NULL, 0.001);
|
|
|
|
if (result) {
|
|
float location[3], normal[3];
|
|
float intersect[3];
|
|
float new_depth;
|
|
|
|
copy_v3_v3(intersect, ray_normal_local);
|
|
mul_v3_fl(intersect, lambda);
|
|
add_v3_v3(intersect, ray_start_local);
|
|
|
|
copy_v3_v3(location, intersect);
|
|
|
|
if (f->v4)
|
|
normal_quad_v3( normal,verts[f->v1].co, verts[f->v2].co, verts[f->v3].co, verts[f->v4].co);
|
|
else
|
|
normal_tri_v3( normal,verts[f->v1].co, verts[f->v2].co, verts[f->v3].co);
|
|
|
|
mul_m4_v3(obmat, location);
|
|
|
|
new_depth = len_v3v3(location, ray_start);
|
|
|
|
mul_m3_v3(timat, normal);
|
|
normalize_v3(normal);
|
|
|
|
addDepthPeel(depth_peels, new_depth, location, normal, ob);
|
|
}
|
|
|
|
if (f->v4 && result == 0)
|
|
{
|
|
result = isect_ray_tri_threshold_v3(ray_start_local, ray_normal_local, verts[f->v3].co, verts[f->v4].co, verts[f->v1].co, &lambda, NULL, 0.001);
|
|
|
|
if (result) {
|
|
float location[3], normal[3];
|
|
float intersect[3];
|
|
float new_depth;
|
|
|
|
copy_v3_v3(intersect, ray_normal_local);
|
|
mul_v3_fl(intersect, lambda);
|
|
add_v3_v3(intersect, ray_start_local);
|
|
|
|
copy_v3_v3(location, intersect);
|
|
|
|
if (f->v4)
|
|
normal_quad_v3( normal,verts[f->v1].co, verts[f->v2].co, verts[f->v3].co, verts[f->v4].co);
|
|
else
|
|
normal_tri_v3( normal,verts[f->v1].co, verts[f->v2].co, verts[f->v3].co);
|
|
|
|
mul_m4_v3(obmat, location);
|
|
|
|
new_depth = len_v3v3(location, ray_start);
|
|
|
|
mul_m3_v3(timat, normal);
|
|
normalize_v3(normal);
|
|
|
|
addDepthPeel(depth_peels, new_depth, location, normal, ob);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int peelObjects(Scene *scene, View3D *v3d, ARegion *ar, Object *obedit, ListBase *depth_peels, const float mval[2])
|
|
{
|
|
Base *base;
|
|
int retval = 0;
|
|
float ray_start[3], ray_normal[3];
|
|
|
|
ED_view3d_win_to_ray(ar, v3d, mval, ray_start, ray_normal);
|
|
|
|
for ( base = scene->base.first; base != NULL; base = base->next ) {
|
|
if ( BASE_SELECTABLE(v3d, base) ) {
|
|
Object *ob = base->object;
|
|
|
|
if (ob->transflag & OB_DUPLI)
|
|
{
|
|
DupliObject *dupli_ob;
|
|
ListBase *lb = object_duplilist(scene, ob);
|
|
|
|
for(dupli_ob = lb->first; dupli_ob; dupli_ob = dupli_ob->next)
|
|
{
|
|
Object *dob = dupli_ob->ob;
|
|
|
|
if (dob->type == OB_MESH) {
|
|
#if 0 //BMESH_TODO
|
|
EditMesh *em;
|
|
DerivedMesh *dm = NULL;
|
|
int val;
|
|
|
|
if (dob != obedit)
|
|
{
|
|
dm = mesh_get_derived_final(scene, dob, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(dob, dm, dob->obmat, ray_start, ray_normal, mval, depth_peels);
|
|
}
|
|
else
|
|
{
|
|
em = ((Mesh *)dob->data)->edit_mesh;
|
|
dm = editmesh_get_derived_cage(scene, obedit, em, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(dob, dm, dob->obmat, ray_start, ray_normal, mval, depth_peels);
|
|
}
|
|
|
|
retval = retval || val;
|
|
|
|
dm->release(dm);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
free_object_duplilist(lb);
|
|
}
|
|
|
|
if (ob->type == OB_MESH) {
|
|
BMEditMesh *em;
|
|
DerivedMesh *dm = NULL;
|
|
int val;
|
|
|
|
if (ob != obedit)
|
|
{
|
|
dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(ob, dm, ob->obmat, ray_start, ray_normal, mval, depth_peels);
|
|
}
|
|
else
|
|
{
|
|
em = ((Mesh *)ob->data)->edit_btmesh;
|
|
dm = editbmesh_get_derived_cage(scene, obedit, em, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(ob, dm, ob->obmat, ray_start, ray_normal, mval, depth_peels);
|
|
}
|
|
|
|
retval = retval || val;
|
|
|
|
dm->release(dm);
|
|
}
|
|
}
|
|
}
|
|
|
|
BLI_sortlist(depth_peels, cmpPeel);
|
|
removeDoublesPeel(depth_peels);
|
|
|
|
return retval;
|
|
}
|
|
|
|
int peelObjectsTransForm(TransInfo *t, ListBase *depth_peels, const float mval[2])
|
|
{
|
|
return peelObjects(t->scene, t->view, t->ar, t->obedit, depth_peels, mval);
|
|
}
|
|
|
|
int peelObjectsContext(bContext *C, ListBase *depth_peels, const float mval[2])
|
|
{
|
|
ScrArea *sa = CTX_wm_area(C);
|
|
View3D *v3d = sa->spacedata.first;
|
|
|
|
return peelObjects(CTX_data_scene(C), v3d, CTX_wm_region(C), CTX_data_edit_object(C), depth_peels, mval);
|
|
}
|
|
|
|
/*================================================================*/
|
|
|
|
static void applyGrid(TransInfo *t, float *val, int max_index, float fac[3], GearsType action);
|
|
|
|
|
|
void snapGridAction(TransInfo *t, float *val, GearsType action)
|
|
{
|
|
float fac[3];
|
|
|
|
fac[NO_GEARS] = t->snap[0];
|
|
fac[BIG_GEARS] = t->snap[1];
|
|
fac[SMALL_GEARS] = t->snap[2];
|
|
|
|
applyGrid(t, val, t->idx_max, fac, action);
|
|
}
|
|
|
|
|
|
void snapGrid(TransInfo *t, float *val)
|
|
{
|
|
GearsType action;
|
|
|
|
// Only do something if using Snap to Grid
|
|
if (t->tsnap.mode != SCE_SNAP_MODE_INCREMENT)
|
|
return;
|
|
|
|
action = activeSnap(t) ? BIG_GEARS : NO_GEARS;
|
|
|
|
if (action == BIG_GEARS && (t->modifiers & MOD_PRECISION)) {
|
|
action = SMALL_GEARS;
|
|
}
|
|
|
|
snapGridAction(t, val, action);
|
|
}
|
|
|
|
|
|
static void applyGrid(TransInfo *t, float *val, int max_index, float fac[3], GearsType action)
|
|
{
|
|
int i;
|
|
float asp[3] = {1.0f, 1.0f, 1.0f}; // TODO: Remove hard coded limit here (3)
|
|
|
|
if(max_index > 2) {
|
|
printf("applyGrid: invalid index %d, clamping\n", max_index);
|
|
max_index= 2;
|
|
}
|
|
|
|
// Early bailing out if no need to snap
|
|
if (fac[action] == 0.0f)
|
|
return;
|
|
|
|
/* evil hack - snapping needs to be adapted for image aspect ratio */
|
|
if((t->spacetype==SPACE_IMAGE) && (t->mode==TFM_TRANSLATION)) {
|
|
ED_space_image_uv_aspect(t->sa->spacedata.first, asp, asp+1);
|
|
}
|
|
|
|
for (i=0; i<=max_index; i++) {
|
|
val[i]= fac[action]*asp[i]*(float)floor(val[i]/(fac[action]*asp[i]) +0.5f);
|
|
}
|
|
}
|