[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [57590] trunk/blender: Snap to Symmetry ( editmesh tool)
Campbell Barton
ideasman42 at gmail.com
Wed Jun 19 23:35:06 CEST 2013
Revision: 57590
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=57590
Author: campbellbarton
Date: 2013-06-19 21:35:06 +0000 (Wed, 19 Jun 2013)
Log Message:
-----------
Snap to Symmetry (editmesh tool)
Update from a script I had in 2.4x, useful if you have mesh data which is _almost_ symmetrical,
there was no good way to automatically make the minor adjustments to make the mesh fully symmetrical.
Options for...
- symmetry-axis.
- blending between the +/- side.
- center mid verts.
Access from Mesh menu.
Modified Paths:
--------------
trunk/blender/release/scripts/startup/bl_ui/space_view3d.py
trunk/blender/source/blender/editors/mesh/editmesh_tools.c
trunk/blender/source/blender/editors/mesh/mesh_intern.h
trunk/blender/source/blender/editors/mesh/mesh_ops.c
Modified: trunk/blender/release/scripts/startup/bl_ui/space_view3d.py
===================================================================
--- trunk/blender/release/scripts/startup/bl_ui/space_view3d.py 2013-06-19 21:23:00 UTC (rev 57589)
+++ trunk/blender/release/scripts/startup/bl_ui/space_view3d.py 2013-06-19 21:35:06 UTC (rev 57590)
@@ -1801,6 +1801,8 @@
layout.separator()
layout.operator("mesh.symmetrize")
+ layout.operator("mesh.symmetry_snap")
+ layout.separator()
layout.operator("mesh.duplicate_move")
layout.menu("VIEW3D_MT_edit_mesh_extrude")
layout.menu("VIEW3D_MT_edit_mesh_delete")
Modified: trunk/blender/source/blender/editors/mesh/editmesh_tools.c
===================================================================
--- trunk/blender/source/blender/editors/mesh/editmesh_tools.c 2013-06-19 21:23:00 UTC (rev 57589)
+++ trunk/blender/source/blender/editors/mesh/editmesh_tools.c 2013-06-19 21:35:06 UTC (rev 57590)
@@ -4258,6 +4258,132 @@
"Direction", "Which sides to copy from and to");
}
+static int mesh_symmetry_snap_exec(bContext *C, wmOperator *op)
+{
+ const float eps = 0.00001f;
+ const float eps_sq = eps * eps;
+
+ Object *obedit = CTX_data_edit_object(C);
+ BMEditMesh *em = BKE_editmesh_from_object(obedit);
+ BMesh *bm = em->bm;
+ int *index = MEM_mallocN(bm->totvert * sizeof(*index), __func__);
+ const bool is_topo = false;
+
+ const float thresh = RNA_float_get(op->ptr, "threshold");
+ const float fac = RNA_float_get(op->ptr, "factor");
+ const bool use_center = RNA_boolean_get(op->ptr, "use_center");
+
+ /* stats */
+ int totmirr = 0, totfail = 0, totfound = 0;
+
+ /* axix */
+ const int axis_dir = RNA_enum_get(op->ptr, "direction");
+ int axis = axis_dir % 3;
+ bool axis_sign = axis != axis_dir;
+
+ /* vertex iter */
+ BMIter iter;
+ BMVert *v;
+ int i;
+
+ EDBM_verts_mirror_cache_begin_ex(em, axis, true, true, is_topo, thresh, index);
+
+ EDBM_index_arrays_ensure(em, BM_VERT);
+
+ BM_mesh_elem_hflag_disable_all(bm, BM_VERT, BM_ELEM_TAG, false);
+
+
+ BM_ITER_MESH_INDEX (v, &iter, bm, BM_VERTS_OF_MESH, i) {
+ if ((BM_elem_flag_test(v, BM_ELEM_SELECT) != false) &&
+ (BM_elem_flag_test(v, BM_ELEM_TAG) == false))
+ {
+ int i_mirr = index[i];
+ if (i_mirr != -1) {
+
+ BMVert *v_mirr = EDBM_vert_at_index(em, index[i]);
+
+ if (v != v_mirr) {
+ float co[3], co_mirr[3];
+
+ if ((v->co[axis] > v->co[axis]) == axis_sign) {
+ SWAP(BMVert *, v, v_mirr);
+ }
+
+ copy_v3_v3(co_mirr, v_mirr->co);
+ co_mirr[axis] *= -1.0f;
+
+ if (len_squared_v3v3(v->co, co_mirr) > eps_sq) {
+ totmirr++;
+ }
+
+ interp_v3_v3v3(co, v->co, co_mirr, fac);
+
+ copy_v3_v3(v->co, co);
+
+ co[axis] *= -1.0f;
+ copy_v3_v3(v_mirr->co, co);
+
+ BM_elem_flag_enable(v, BM_ELEM_TAG);
+ BM_elem_flag_enable(v_mirr, BM_ELEM_TAG);
+ totfound++;
+ }
+ else {
+ if (use_center) {
+
+ if (fabsf(v->co[axis]) > eps) {
+ totmirr++;
+ }
+
+ v->co[axis] = 0.0f;
+ }
+ BM_elem_flag_enable(v, BM_ELEM_TAG);
+ totfound++;
+ }
+ }
+ else {
+ totfail++;
+ }
+ }
+ }
+
+
+ if (totfail) {
+ BKE_reportf(op->reports, RPT_WARNING, "%d already symmetrical, %d pairs mirrored, %d failed",
+ totfound - totmirr, totmirr, totfail);
+ }
+ else {
+ BKE_reportf(op->reports, RPT_INFO, "%d already symmetrical, %d pairs mirrored",
+ totfound - totmirr, totmirr);
+ }
+
+ /* no need to end cache, just free the array */
+ MEM_freeN(index);
+
+ return OPERATOR_FINISHED;
+}
+
+void MESH_OT_symmetry_snap(struct wmOperatorType *ot)
+{
+ /* identifiers */
+ ot->name = "Snap to Symmetry";
+ ot->description = "Snap vertex pairs to their mirrored locations";
+ ot->idname = "MESH_OT_symmetry_snap";
+
+ /* api callbacks */
+ ot->exec = mesh_symmetry_snap_exec;
+ ot->poll = ED_operator_editmesh;
+
+ /* flags */
+ ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+ ot->prop = RNA_def_enum(ot->srna, "direction", symmetrize_direction_items,
+ BMO_SYMMETRIZE_NEGATIVE_X,
+ "Direction", "Which sides to copy from and to");
+ RNA_def_float(ot->srna, "threshold", 0.05, 0.0, 10.0, "Threshold", "", 0.0001, 1.0);
+ RNA_def_float(ot->srna, "factor", 0.5f, 0.0, 1.0, "Factor", "", 0.0, 1.0);
+ RNA_def_boolean(ot->srna, "use_center", true, "Center", "Snap mid verts to the axis center");
+}
+
#ifdef WITH_FREESTYLE
static int edbm_mark_freestyle_edge(bContext *C, wmOperator *op)
Modified: trunk/blender/source/blender/editors/mesh/mesh_intern.h
===================================================================
--- trunk/blender/source/blender/editors/mesh/mesh_intern.h 2013-06-19 21:23:00 UTC (rev 57589)
+++ trunk/blender/source/blender/editors/mesh/mesh_intern.h 2013-06-19 21:35:06 UTC (rev 57590)
@@ -170,6 +170,7 @@
void MESH_OT_wireframe(struct wmOperatorType *ot);
void MESH_OT_convex_hull(struct wmOperatorType *ot);
void MESH_OT_symmetrize(struct wmOperatorType *ot);
+void MESH_OT_symmetry_snap(struct wmOperatorType *ot);
void MESH_OT_shape_propagate_to_all(struct wmOperatorType *ot);
void MESH_OT_blend_from_shape(struct wmOperatorType *ot);
void MESH_OT_sort_elements(struct wmOperatorType *ot);
Modified: trunk/blender/source/blender/editors/mesh/mesh_ops.c
===================================================================
--- trunk/blender/source/blender/editors/mesh/mesh_ops.c 2013-06-19 21:23:00 UTC (rev 57589)
+++ trunk/blender/source/blender/editors/mesh/mesh_ops.c 2013-06-19 21:35:06 UTC (rev 57590)
@@ -172,6 +172,7 @@
#endif
WM_operatortype_append(MESH_OT_symmetrize);
+ WM_operatortype_append(MESH_OT_symmetry_snap);
#ifdef WITH_GAMEENGINE
WM_operatortype_append(MESH_OT_navmesh_make);
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