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Draft: Draft_Hatch workaround for TD edge length limit (#14114)

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Edges longer than ca. 10m are considered 'crazy' in the TD Workbench. Hatch patterns are also checked. As a workaround some intermediate scaling is applied.

Addionally: `transformShape` instead of `transformGeometry`. The latter results in B-splines.
This commit is contained in:
Roy-043
2024-05-18 11:39:08 +02:00
committed by GitHub
parent af36a49d68
commit bfbe28f7a5
1 changed files with 18 additions and 6 deletions
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24
src/Mod/Draft/draftobjects/hatch.py
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@@ -116,16 +116,28 @@ class Hatch(DraftObject):
# If no suitable straight edge was found use a default matrix:
if not mtx:
cen = face.CenterOfMass
rot = App.Rotation(App.Vector(0,0,1), w)
rot = App.Rotation(App.Vector(0, 0, 1), w)
mtx = App.Placement(cen, rot).Matrix
face = face.transformGeometry(mtx.inverse()).Faces[0]
face = face.transformShape(mtx.inverse()).Faces[0]
# In TechDraw edges longer than 9999.9 (ca. 10m) are considered 'crazy'.
# Lines in a hatch pattern are also checked. In the code below 9999 is
# used. With extra scaling based on that value a 1000m x 1000m rectangle
# can be hatched. Tested with pattern: Diagonal4, and pattern scale: 1000.
# With a limit of 9999.9 the same test fails.
if face.BoundBox.DiagonalLength > 9999:
extra_scale = 9999 / face.BoundBox.DiagonalLength
else:
extra_scale = 1.0
face.scale(extra_scale)
if obj.Rotation.Value:
face.rotate(App.Vector(), App.Vector(0,0,1), -obj.Rotation)
shape = TechDraw.makeGeomHatch(face, obj.Scale, obj.Pattern, obj.File)
face.rotate(App.Vector(), App.Vector(0, 0, 1), -obj.Rotation)
shape = TechDraw.makeGeomHatch(face, obj.Scale * extra_scale, obj.Pattern, obj.File)
shape.scale(1 / extra_scale)
if obj.Rotation.Value:
shape.rotate(App.Vector(), App.Vector(0,0,1), obj.Rotation)
shape.rotate(App.Vector(), App.Vector(0, 0, 1), obj.Rotation)
if obj.Translate:
shape = shape.transformGeometry(mtx)
shape = shape.transformShape(mtx)
shapes.append(shape)
if shapes:
obj.Shape = Part.makeCompound(shapes)