From 8df8fb0342874b2c76c488df081c34d57f17c643 Mon Sep 17 00:00:00 2001 From: Lukas Treyer Date: Tue, 11 Oct 2016 11:12:27 +0200 Subject: bugfix for T49593: _gen_meshface removes points from a 3DFACE or SOLID if the they share the same location. This was a good a idea but it was not implemented completely. Now it is: faces with overlapping verts get imported as edges if the remaining geometry has only 2 verts. This allows the user to easily select all edges if extraction is needed to make it visible in a rendering. (e.g. select one edge and then choose Select > Select Similar > Amount of connecting edges). --- io_import_dxf/dxfimport/do.py | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/io_import_dxf/dxfimport/do.py b/io_import_dxf/dxfimport/do.py index 4b73eaac..66551f53 100644 --- a/io_import_dxf/dxfimport/do.py +++ b/io_import_dxf/dxfimport/do.py @@ -493,21 +493,26 @@ class Do: verts = [] for p in points: verts.append(bm.verts.new(self.proj(p))) - face = bm.faces.new(verts) - if len(points) == 4: - for i in range(2): - edge1 = verts[i].co - edge2 = verts[i + 1].co - opposite1 = verts[i + 2].co - opposite2 = verts[(i + 3) % 4].co - ii = geometry.intersect_line_line(edge1, edge2, opposite1, opposite2) - if ii is not None: - if _is_on_edge(ii[0]): - bm.faces.remove(face) - iv = bm.verts.new(ii[0]) - bm.faces.new((verts[i], iv, verts[(i + 3) % 4])) - bm.faces.new((verts[i + 1], iv, verts[i + 2])) + # add only an edge if len points < 3 + if len(points) == 2: + bm.edges.new(verts) + elif len(points) > 2: + face = bm.faces.new(verts) + + if len(points) == 4: + for i in range(2): + edge1 = verts[i].co + edge2 = verts[i + 1].co + opposite1 = verts[i + 2].co + opposite2 = verts[(i + 3) % 4].co + ii = geometry.intersect_line_line(edge1, edge2, opposite1, opposite2) + if ii is not None: + if _is_on_edge(ii[0]): + bm.faces.remove(face) + iv = bm.verts.new(ii[0]) + bm.faces.new((verts[i], iv, verts[(i + 3) % 4])) + bm.faces.new((verts[i + 1], iv, verts[i + 2])) def the3dface(self, en, bm): """ f: dxf entity -- cgit v1.2.3