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Preliminary section support for Arch section planes

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This commit is contained in:
Yorik van Havre 2012-04-05 18:05:25 -03:00
parent 5ff29e2b5c
commit de50ac9eca
2 changed files with 72 additions and 13 deletions
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1
src/Mod/Arch/ArchCommands.py
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@ -205,6 +205,7 @@ def getCutVolume(objects,placement):
in the list fits into it, and an extrusion vector, that can be used to extrude the
plane so it includes all objects in the list.'''
import Part
placement = FreeCAD.Placement(placement)
if not objects:
return None
bb = objects[0].Shape.BoundBox

84
src/Mod/Arch/ArchSectionPlane.py
View File

@ -21,7 +21,7 @@
#* *
#***************************************************************************
import FreeCAD,FreeCADGui,ArchComponent,WorkingPlane,Drawing,math,Draft
import FreeCAD,FreeCADGui,ArchComponent,WorkingPlane,Drawing,math,Draft,ArchCommands
from FreeCAD import Vector
from PyQt4 import QtCore
from pivy import coin
@ -173,13 +173,34 @@ class _ArchDrawingView:
def updateSVG(self, obj):
"encapsulates a svg fragment into a transformation node"
import Part
from draftlibs import fcgeo
if obj.Source:
if obj.Source.Objects:
svg = ''
cp = ArchCommands.getCutVolume(obj.Source.Objects,obj.Source.Placement)
print "cp:",cp
sections = []
if cp:
cutvolume = cp[0].extrude(cp[1])
shapes = []
for o in obj.Source.Objects:
if cp:
shapes.append(o.Shape.cut(cutvolume))
sec = o.Shape.section(cp[0])
if sec.Edges:
sec = Part.Wire(fcgeo.sortEdges(sec.Edges))
sec = Part.Face(sec)
sections.append(sec)
else:
shapes.append(o.Shape)
if obj.RenderingMode == "Solid":
svg += self.renderVRM(obj.Source.Objects,obj.Source.Placement)
svg += self.renderVRM(shapes,obj.Source.Placement)
else:
svg += self.renderOCC(obj.Source.Objects,obj.Source.Proxy.getNormal(obj.Source))
svg += self.renderOCC(shapes,obj.Source.Proxy.getNormal(obj.Source))
print "sections:",sections
for s in sections:
svg += self.renderSection(s,obj.Source.Placement)
result = ''
result += '<g id="' + obj.Name + '"'
result += ' transform="'
@ -193,27 +214,64 @@ class _ArchDrawingView:
return result
return ''
def renderOCC(self,objs,direction):
def renderOCC(self,shapes,direction):
"renders an SVG fragment with the OCC method"
os = objs[:]
if os:
sh = os.pop().Shape
for o in os:
sh = sh.fuse(o.Shape)
result = Drawing.projectToSVG(sh,fcvec.neg(direction))
shapes = shapes[:]
if shapes:
base = shape.pop()
for sh in shapes:
base = base.fuse(sh)
result = Drawing.projectToSVG(base,fcvec.neg(direction))
if result:
result = result.replace('stroke-width="0.35"','stroke-width="0.01 px"')
return result
return ''
def renderVRM(self,objs,placement):
def renderVRM(self,shapes,placement):
"renders an SVG fragment with the ArchVRM method"
import ArchVRM
render = ArchVRM.Renderer()
render.setWorkingPlane(FreeCAD.Placement(placement))
for o in objs:
render.add(o)
for s in shapes:
render.add(s)
svg = render.getSVG()
return svg
def renderSection(self,shape,placement):
"renders a plane parallel to the section plane"
placement = FreeCAD.Placement(placement)
u = placement.Rotation.multVec(FreeCAD.Vector(1,0,0))
v = placement.Rotation.multVec(FreeCAD.Vector(0,1,0))
pts = []
for vt in shape.Vertexes:
vu = fcvec.project(vt.Point,u)
if vu.getAngle(u) > 1:
x = -vu.Length
else:
x = vu.Length
vv = fcvec.project(vt.Point,v)
if vv.getAngle(v) > 1:
y = -vv.Length
else:
y = vv.Length
pts.append([x,y])
svg ='<path '
svg += 'd="M '+ str(pts[0][0]) +' '+ str(pts[0][1]) + ' '
for p in pts[1:]:
svg += 'L '+ str(p[0]) +' '+ str(p[1]) + ' '
svg += 'z '
svg += '" '
svg += 'stroke="#000000" '
svg += 'stroke-width="0.02 px" '
svg += 'style="stroke-width:0.01;'
svg += 'stroke-miterlimit:1;'
svg += 'stroke-linejoin:round;'
svg += 'stroke-dasharray:none;'
svg += 'fill:#ffffff;'
svg += 'fill-rule: evenodd'
svg += '"/>\n'
return svg
FreeCADGui.addCommand('Arch_SectionPlane',_CommandSectionPlane())