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Modified editmesh_mods.c

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Added "Similar Edge Face Angles" to "Select Edge Groups"
This means you can select edges based on the angles of edges in the existing selection.
Only works for edges with 2 face users at the moment.
This commit is contained in:
Campbell Barton 2006-03-27 21:35:31 +00:00
parent abd9113fbf
commit 2f09ff00ef
1 changed files with 65 additions and 5 deletions
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70
source/blender/src/editmesh_mods.c
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@ -782,7 +782,7 @@ int facegroup_select(short mode)
}
if (!ok || !deselcount) /* no data selected OR no more data to select */
return;
return 0;
/*if mode is 3 then record face areas, 4 record perimeter */
if (mode==3) {
@ -877,7 +877,13 @@ EDGE GROUP
mode 1: same length
mode 2: same direction
mode 3: same number of face users
mode 4: similar face angles.
*/
/* this function is only used by edgegroup_select's edge angle */
int edgegroup_select(short mode)
{
EditMesh *em = G.editMesh;
@ -903,18 +909,19 @@ int edgegroup_select(short mode)
/* set all eed->tmp.l to 0 we use it later.
for counting face users*/
eed->tmp.l=0;
eed->f2=0; /* only for mode 4, edge animations */
}
}
if (!ok || !deselcount) /* no data selected OR no more data to select*/
return;
return 0;
if (mode==1) { /*store length*/
for(eed= em->edges.first; eed; eed= eed->next) {
eed->tmp.fp= VecLenf(eed->v1->co, eed->v2->co);
}
} else if (mode==3) { /*store face users*/
EditFace *efa;
EditFace *efa;
/* cound how many faces each edge uses use tmp->l */
for(efa= em->faces.first; efa; efa= efa->next) {
efa->e1->tmp.l++;
@ -922,6 +929,43 @@ int edgegroup_select(short mode)
efa->e3->tmp.l++;
if (efa->e4) efa->e4->tmp.l++;
}
} else if (mode==4) { /*store edge angles */
EditFace *efa;
EditEdge efa_edges[4];
int j;
/* cound how many faces each edge uses use tmp.l */
for(efa= em->faces.first; efa; efa= efa->next) {
/* here we use the edges temp data to assign a face
if a face has alredy been assigned (eed->f2==1)
we calculate the angle between the current face and
the edges previously found face.
store the angle in eed->tmp.fp (loosing the face eed->tmp.f)
but tagging eed->f2==2, so we know not to look at it again.
This only works for edges that connect to 2 faces. but its good enough
*/
/* se we can loop through face edges*/
j=0;
eed= efa->e1;
while (j<4) {
if (j==1) eed= efa->e2;
else if (j==2) eed= efa->e3;
else if (j==3) {
eed= efa->e4;
if (!eed)
break;
} /* done looping */
if (eed->f2==2)
break;
else if (eed->f2==0) /* first access, assign the face */
eed->tmp.f= efa;
else if (eed->f2==1) /* second, we assign the angle*/
eed->tmp.fp= VecAngle2(eed->tmp.f->n, efa->n);
eed->f2++; /* f2==0 no face assigned. f2==1 one face found. f2==2 angle calculated.*/
j++;
}
}
}
for(base_eed= em->edges.first; base_eed; base_eed= base_eed->next) {
@ -974,7 +1018,23 @@ int edgegroup_select(short mode)
return selcount;
}
}
} else if (mode==4 && base_eed->f2==2) { /* edge angles, f2==2 means the edge has an angle. */
for(eed= em->edges.first; eed; eed= eed->next) {
if (
!(eed->f & SELECT) &&
!eed->h &&
eed->f2==2 &&
(fabs(base_eed->tmp.fp - eed->tmp.fp) <= thresh)
) {
EM_select_edge(eed, 1);
selcount++;
deselcount--;
if (!deselcount) /*have we selected all posible faces?, if so return*/
return selcount;
}
}
}
}
}
return selcount;
@ -1017,7 +1077,7 @@ int vertgroup_select(short mode)
}
if (!ok || !deselcount) /* no data selected OR no more data to select*/
return;
return 0;
if (mode==2) { /* store face users */
@ -1118,7 +1178,7 @@ void select_mesh_group_menu()
}
} else if(G.scene->selectmode & SCE_SELECT_EDGE) {
ret= pupmenu("Select Grouped Edges%t|Similar Length %x1|Similar Direction %x2|Same Face Users%x3");
ret= pupmenu("Select Grouped Edges%t|Similar Length %x1|Similar Direction %x2|Same Face Users%x3|Similar Adjacent Face Angle");
if (ret<1) return;
selcount= edgegroup_select(ret);