diff --git a/io_export_paper_model.py b/io_export_paper_model.py
index 4edbea429db8bed2c4fce85f97c2a05739ccfc2e..fab7db14c3b8f0371df88c71bef3ab1ffc48d9c7 100644
--- a/io_export_paper_model.py
+++ b/io_export_paper_model.py
@@ -184,7 +184,6 @@ class Unfolder:
self.do_create_uvmap = False
bm = bmesh.from_edit_mesh(ob.data)
self.mesh = Mesh(bm, ob.matrix_world)
- self.mesh.copy_freestyle_marks(ob.data)
self.mesh.check_correct()
def __del__(self):
@@ -302,13 +301,18 @@ class Mesh:
edge.choose_main_faces()
if edge.main_faces:
edge.calculate_angle()
+ self.copy_freestyle_marks()
def delete_uvmap(self):
self.data.loops.layers.uv.remove(self.looptex) if self.looptex else None
- def copy_freestyle_marks(self, mesh):
+ def copy_freestyle_marks(self):
+ # NOTE: this is a workaround for NotImplementedError on bmesh.edges.layers.freestyle
+ mesh = bpy.data.meshes.new("unfolder_temp")
+ self.data.to_mesh(mesh)
for bmedge, edge in self.edges.items():
edge.freestyle = mesh.edges[bmedge.index].use_freestyle_mark
+ bpy.data.meshes.remove(mesh)
def mark_cuts(self):
for bmedge, edge in self.edges.items():
@@ -318,21 +322,23 @@ class Mesh:
def check_correct(self, epsilon=1e-6):
"""Check for invalid geometry"""
def is_twisted(face):
- if len(face.verts) > 3:
- center = sum((vertex.co for vertex in face.verts), M.Vector((0, 0, 0))) / len(face.verts)
- plane_d = center.dot(face.normal)
- diameter = max((center - vertex.co).length for vertex in face.verts)
- for vertex in face.verts:
- # check coplanarity
- if abs(vertex.co.dot(face.normal) - plane_d) > diameter * 0.01:
- return True
- return False
+ if len(face.verts) <= 3:
+ return False
+ center = face.calc_center_median()
+ plane_d = center.dot(face.normal)
+ diameter = max((center - vertex.co).length for vertex in face.verts)
+ threshold = 0.01 * diameter
+ return any(abs(v.co.dot(face.normal) - plane_d) > threshold for v in face.verts)
null_edges = {e for e in self.edges.keys() if e.calc_length() < epsilon and e.link_faces}
null_faces = {f for f in self.data.faces if f.calc_area() < epsilon}
twisted_faces = {f for f in self.data.faces if is_twisted(f)}
- if not (null_edges or null_faces or twisted_faces):
- return
+ inverted_scale = self.matrix.determinant() <= 0
+ if not (null_edges or null_faces or twisted_faces or inverted_scale):
+ return True
+ if inverted_scale:
+ raise UnfoldError("The object is flipped inside-out.\n"
+ "You can use Object -> Apply -> Scale to fix it. Export failed.")
disease = [("Remove Doubles", null_edges or null_faces), ("Triangulate", twisted_faces)]
cure = " and ".join(s for s, k in disease if k)
raise UnfoldError(
@@ -1041,7 +1047,7 @@ def join(uvedge_a, uvedge_b, size_limit=None, epsilon=1e-6):
uvedge.vb = phantoms[uvedge.vb]
uvedge.update()
if is_merged_mine:
- for uvedge in island_a.edges:
+ for uvedge in island_a.edges.values():
uvedge.va = phantoms.get(uvedge.va, uvedge.va)
uvedge.vb = phantoms.get(uvedge.vb, uvedge.vb)
island_a.edges.update(island_b.edges)
@@ -2027,7 +2033,7 @@ class ExportPaperModel(bpy.types.Operator):
])
scale: bpy.props.FloatProperty(
name="Scale", description="Divisor of all dimensions when exporting",
- default=1, soft_min=1.0, soft_max=10000.0, step=100, subtype='UNSIGNED', precision=1)
+ default=1, soft_min=1.0, soft_max=100.0, subtype='FACTOR', precision=1)
do_create_uvmap: bpy.props.BoolProperty(
name="Create UVMap", description="Create a new UV Map showing the islands and page layout",
default=False, options={'SKIP_SAVE'})
@@ -2109,8 +2115,7 @@ class ExportPaperModel(bpy.types.Operator):
row.operator("export_mesh.paper_model_preset_add", text="", icon='ADD')
row.operator("export_mesh.paper_model_preset_add", text="", icon='REMOVE').remove_active = True
- # a little hack: this prints out something like "Scale: 1: 72"
- layout.prop(self.properties, "scale", text="Scale: 1")
+ layout.prop(self.properties, "scale", text="Scale: 1/")
scale_ratio = self.get_scale_ratio(context.scene)
if scale_ratio > 1:
layout.label(
@@ -2293,10 +2298,10 @@ class AddPresetPaperModel(bl_operators.presets.AddPresetBase, bpy.types.Operator
class VIEW3D_PT_paper_model_tools(bpy.types.Panel):
- bl_label = "Tools"
- bl_space_type = "VIEW_3D"
- bl_region_type = "TOOLS"
- bl_category = "Paper Model"
+ bl_space_type = 'VIEW_3D'
+ bl_region_type = 'UI'
+ bl_category = 'Paper'
+ bl_label = "Unfold"
def draw(self, context):
layout = self.layout
@@ -2304,11 +2309,7 @@ class VIEW3D_PT_paper_model_tools(bpy.types.Panel):
obj = context.active_object
mesh = obj.data if obj and obj.type == 'MESH' else None
- layout.operator("export_mesh.paper_model")
-
- col = layout.column(align=True)
- col.label(text="Customization:")
- col.operator("mesh.unfold")
+ layout.operator("mesh.unfold")
if context.mode == 'EDIT_MESH':
row = layout.row(align=True)
@@ -2317,8 +2318,22 @@ class VIEW3D_PT_paper_model_tools(bpy.types.Panel):
else:
layout.operator("mesh.clear_all_seams")
+
+class VIEW3D_PT_paper_model_settings(bpy.types.Panel):
+ bl_space_type = 'VIEW_3D'
+ bl_region_type = 'UI'
+ bl_category = 'Paper'
+ bl_label = "Export"
+
+ def draw(self, context):
+ layout = self.layout
+ sce = context.scene
+ obj = context.active_object
+ mesh = obj.data if obj and obj.type == 'MESH' else None
+
+ layout.operator("export_mesh.paper_model")
props = sce.paper_model
- layout.prop(props, "scale", text="Model Scale: 1")
+ layout.prop(props, "scale", text="Model Scale: 1/")
layout.prop(props, "limit_by_page")
col = layout.column()
@@ -2447,7 +2462,7 @@ class PaperModelSettings(bpy.types.PropertyGroup):
default=0.29, soft_min=0.148, soft_max=1.189, subtype="UNSIGNED", unit="LENGTH")
scale: bpy.props.FloatProperty(
name="Scale", description="Divisor of all dimensions when exporting",
- default=1, soft_min=1.0, soft_max=10000.0, step=100, subtype='UNSIGNED', precision=1)
+ default=1, soft_min=1.0, soft_max=100.0, subtype='FACTOR', precision=1)
module_classes = (
@@ -2461,7 +2476,8 @@ module_classes = (
PaperModelSettings,
VIEW3D_MT_paper_model_presets,
DATA_PT_paper_model_islands,
- #VIEW3D_PT_paper_model_tools,
+ VIEW3D_PT_paper_model_tools,
+ VIEW3D_PT_paper_model_settings,
)