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new bmesh tool - limited dissolve.

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This is a kind of simplification/cleanup tool which joins adjacent faces and edges based on the angle.

I've written this as an exercise (since I havnt written a bmesh operator before), and because quite a few users were asking for the dissolve operator to be extended, but I think this kind of functionality needs its own operator.

access from specials menu and mesh menu.

notes
* this exposed a bug in angle_v3v3v3(). will merge fix into trunk after release.
* added utility function BM_vert_edge_angle(), to get the angle between 2 connecting edges of a vert.
This commit is contained in:
Campbell Barton
2012-02-13 14:37:07 +00:00
parent 74f268c442
commit cde2f11244
10 changed files with 192 additions and 5 deletions
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39
source/blender/editors/mesh/bmesh_tools.c
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@@ -3522,7 +3522,46 @@ void MESH_OT_tris_convert_to_quads(wmOperatorType *ot)
RNA_def_boolean(ot->srna, "vcols", 0, "Compare VCols", "");
RNA_def_boolean(ot->srna, "sharp", 0, "Compare Sharp", "");
RNA_def_boolean(ot->srna, "materials", 0, "Compare Materials", "");
}
static int dissolve_limited_exec(bContext *C, wmOperator *op)
{
Object *obedit = CTX_data_edit_object(C);
BMEditMesh *em = ((Mesh *)obedit->data)->edit_btmesh;
float angle_limit = RNA_float_get(op->ptr, "angle_limit");
if (!EDBM_CallOpf(em, op,
"dissolvelimit edges=%he verts=%hv angle_limit=%f",
BM_ELEM_SELECT, BM_ELEM_SELECT, angle_limit))
{
return OPERATOR_CANCELLED;
}
DAG_id_tag_update(obedit->data, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_GEOM|ND_DATA, obedit->data);
return OPERATOR_FINISHED;
}
void MESH_OT_dissolve_limited(wmOperatorType *ot)
{
PropertyRNA *prop;
/* identifiers */
ot->name = "Limited Dissolve";
ot->idname = "MESH_OT_dissolve_limited";
ot->description = "Dissolve selected edges and verts, limited by the angle of surrounding geometry";
/* api callbacks */
ot->exec = dissolve_limited_exec;
ot->poll = ED_operator_editmesh;
/* flags */
ot->flag = OPTYPE_REGISTER|OPTYPE_UNDO;
prop = RNA_def_float_rotation(ot->srna, "angle_limit", 0, NULL, 0.0f, DEG2RADF(180.0f),
"Max Angle", "Angle Limit in Degrees", 0.0f, DEG2RADF(180.0f));
RNA_def_property_float_default(prop, DEG2RADF(15.0f));
}
static int edge_flip_exec(bContext *UNUSED(C), wmOperator *UNUSED(op))