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Helpline drawing in transform (semi broken in this commit)

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This is only usefull for rotate now, but the axis constraining code has a part that depended on this, so I commit this part first.

For coders:

void constline(float *center, float *dir, int col)
	Draw an infinite line on the screen. col is the color argument. It must be cpack compatible

void project_short_infiniteline(float *vec, float *dir, short *adr1, short *adr2);
	clips infinite line to screen border
This commit is contained in:
Martin Poirier
2003-10-21 16:25:00 +00:00
parent 8280cab690
commit 41f4940bff
5 changed files with 232 additions and 18 deletions
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34
source/blender/src/drawobject.c
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@@ -271,6 +271,40 @@ void helpline(float *vec)
glDrawBuffer(GL_BACK);
}
void constline(float *center, float *dir, int col)
{
float v1[3], v2[3];
short val1[2], val2[2];
VecCopyf(v1, center);
VecCopyf(v2, dir);
if(G.obedit){
Mat4Mul3Vecfl(G.obedit->obmat, v1);
VecAddf(v1, v1, G.obedit->obmat[3]);
}
if(G.obedit) Mat4Mul3Vecfl(G.obedit->obmat, v2);
project_short_infiniteline(v1, v2, val1, val2);
persp(0);
glDrawBuffer(GL_FRONT);
cpack(col);
setlinestyle(0);
glBegin(GL_LINE_STRIP);
glVertex2sv(val1);
glVertex2sv(val2);
glEnd();
persp(PERSP_VIEW);
glFinish(); // flush display for frontbuffer
glDrawBuffer(GL_BACK);
}
void drawaxes(float size)
{
int axis;