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True X-mirror mesh editing!

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Set the option in EditMode, in 2nd mesh tools panel. It only works on
transform options now (grab/rot/scale), and of course assumes a near-
perfect symmetrical mesh. Mesh Object itself can be on any location
though (and rotated etc).
This commit is contained in:
Ton Roosendaal
2005-12-01 19:04:57 +00:00
parent a09fbc080d
commit c4a1d655ae
10 changed files with 96 additions and 39 deletions
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55
source/blender/src/meshtools.c
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@@ -602,7 +602,7 @@ void sort_faces(void)
typedef struct MocNode {
struct MocNode *next;
int index[MOC_NODE_RES];
long index[MOC_NODE_RES];
} MocNode;
static int mesh_octree_get_base_offs(float *co, float *offs, float *div)
@@ -620,7 +620,7 @@ static int mesh_octree_get_base_offs(float *co, float *offs, float *div)
return (vx*MOC_RES*MOC_RES) + vy*MOC_RES + vz;
}
static void mesh_octree_add_node(MocNode **bt, int index)
static void mesh_octree_add_node(MocNode **bt, long index)
{
if(*bt==NULL) {
*bt= MEM_callocN(sizeof(MocNode), "MocNode");
@@ -652,7 +652,7 @@ static void mesh_octree_free_node(MocNode **bt)
/* temporal define, just to make nicer code below */
#define MOC_ADDNODE(vx, vy, vz) mesh_octree_add_node(basetable + ((vx)*MOC_RES*MOC_RES) + (vy)*MOC_RES + (vz), index)
static void mesh_octree_add_nodes(MocNode **basetable, float *co, float *offs, float *div, int index)
static void mesh_octree_add_nodes(MocNode **basetable, float *co, float *offs, float *div, long index)
{
float fx, fy, fz;
int vx, vy, vz;
@@ -693,7 +693,7 @@ static void mesh_octree_add_nodes(MocNode **basetable, float *co, float *offs, f
}
static int mesh_octree_find_index(MocNode **bt, MVert *mvert, float *co)
static long mesh_octree_find_index(MocNode **bt, MVert *mvert, float *co)
{
float *vec;
int a;
@@ -706,15 +706,13 @@ static int mesh_octree_find_index(MocNode **bt, MVert *mvert, float *co)
/* does mesh verts and editmode, code looks potential dangerous, octree should really be filled OK! */
if(mvert) {
vec= (mvert+(*bt)->index[a]-1)->co;
if(FloatCompare(vec, co, MOC_THRESH))
return (*bt)->index[a]-1;
}
else {
EditVert *eve= (EditVert *)INT_TO_POINTER((*bt)->index[a]);
EditVert *eve= (EditVert *)((*bt)->index[a]);
if(FloatCompare(eve->co, co, MOC_THRESH))
return (int)eve;
return (*bt)->index[a];
}
}
else return -1;
@@ -728,7 +726,7 @@ static int mesh_octree_find_index(MocNode **bt, MVert *mvert, float *co)
/* mode is 's' start, or 'e' end, or 'u' use */
/* if end, ob can be NULL */
int mesh_octree_table(Object *ob, float *co, char mode)
long mesh_octree_table(Object *ob, float *co, char mode)
{
MocNode **bt;
static MocNode **basetable= NULL;
@@ -754,21 +752,23 @@ int mesh_octree_table(Object *ob, float *co, char mode)
/* for quick unit coordinate calculus */
VECCOPY(offs, bb->vec[0]);
offs[0]+= MOC_THRESH; /* we offset it 1 threshold unit extra */
offs[1]+= MOC_THRESH;
offs[2]+= MOC_THRESH;
offs[0]-= MOC_THRESH; /* we offset it 1 threshold unit extra */
offs[1]-= MOC_THRESH;
offs[2]-= MOC_THRESH;
VecSubf(div, bb->vec[6], offs);
div[0]+= MOC_THRESH; /* and divide with 1 threshold unit more extra (try 8x8 unit grid on paint) */
div[1]+= MOC_THRESH;
div[2]+= MOC_THRESH;
VecSubf(div, bb->vec[6], bb->vec[0]);
div[0]+= 2*MOC_THRESH; /* and divide with 2 threshold unit more extra (try 8x8 unit grid on paint) */
div[1]+= 2*MOC_THRESH;
div[2]+= 2*MOC_THRESH;
VecMulf(div, 1.0f/MOC_RES);
if(div[0]==0.0f) div[0]= 1.0f;
if(div[1]==0.0f) div[1]= 1.0f;
if(div[2]==0.0f) div[2]= 1.0f;
if(basetable) /* happens when entering wpaint without closing it */
printvecf("ofs", offs);
printvecf("div", div);
if(basetable) /* happens when entering this call without ending it */
mesh_octree_table(ob, co, 'e');
basetable= MEM_callocN(MOC_RES*MOC_RES*MOC_RES*sizeof(void *), "sym table");
@@ -777,12 +777,12 @@ int mesh_octree_table(Object *ob, float *co, char mode)
EditVert *eve;
for(eve= G.editMesh->verts.first; eve; eve= eve->next) {
mesh_octree_add_nodes(basetable, eve->co, offs, div, POINTER_TO_INT(eve));
mesh_octree_add_nodes(basetable, eve->co, offs, div, (long)(eve));
}
}
else {
MVert *mvert;
int a;
long a;
for(a=1, mvert= me->mvert; a<=me->totvert; a++, mvert++) {
mesh_octree_add_nodes(basetable, mvert->co, offs, div, a);
@@ -815,3 +815,18 @@ int mesh_get_x_mirror_vert(Object *ob, int index)
return mesh_octree_table(ob, vec, 'u');
}
EditVert *editmesh_get_x_mirror_vert(Object *ob, float *co)
{
float vec[3];
long poinval;
vec[0]= -co[0];
vec[1]= co[1];
vec[2]= co[2];
poinval= mesh_octree_table(ob, vec, 'u');
if(poinval != -1)
return (EditVert *)(poinval);
return NULL;
}