Rough swipe at a revolve feature utilizing FreeCAD as a library.
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@ -1868,6 +1868,24 @@ class Workplane(CQ):
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else:
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return self.newObject([r])
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def revolve(self,angleDegrees,combine=True):
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"""
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Use all un-revolved wires in the parent chain to create a solid.
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:param angleDegrees: the angle to revolve through.
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:type angleDegrees: float, anything less than 360 degrees will leave the shape open
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:param boolean combine: True to combine the resulting solid with parent solids if found.
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:return: a CQ object with the resulting solid selected.
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The returned object is always a CQ object, and depends on wither combine is True, and
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whether a context solid is already defined:
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* if combine is False, the new value is pushed onto the stack.
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* if combine is true, the value is combined with the context solid if it exists,
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and the resulting solid becomes the new context solid.
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"""
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def _combineWithBase2(self,obj):
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"""
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Combines the provided object with the base solid, if one can be found.
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@ -2105,6 +2123,30 @@ class Workplane(CQ):
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return Compound.makeCompound(toFuse)
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def _revolve(self,angleDegrees):
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"""
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Make a solid from the existing set of pending wires.
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:param angleDegrees: the angle to revolve throug
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:return: a FreeCAD solid, suitable for boolean operations.
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This method is a utility method, primarily for plugin and internal use.
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"""
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#We have to gather the wires to be revolved
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wireSets = sortWiresByBuildOrder(list(self.ctx.pendingWires),self.plane,[])
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#Mark that all of the wires have been used to create a revolution
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self.ctx.pendingWires = []
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#Revolve the wires, make a compound out of them and then fuse them
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toFuse = []
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for ws in wireSets:
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#TODO: Replace the line below with the equivalent revolve function
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#thisObj = Solid.extrudeLinear(ws[0], ws[1:], eDir)
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thisObj = Solid.revolve(ws[0], ws[1:], angleDegrees)
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toFuse.append(thisObj)
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return Compound.makeCompound(toFuse)
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def box(self,length,width,height,centered=(True,True,True),combine=True):
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"""
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@ -737,6 +737,35 @@ class Solid(Shape):
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return Shape.cast(result)
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@classmethod
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def revolve(cls,outerWire,innerWires, angleDegrees):
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"""
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Attempt to revolve the list of wires into a solid in the provided direction
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:param outerWire: the outermost wire
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:param innerWires: a list of inner wires
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:param angleDegrees: the angle through which to revolve the wires
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:return: a Solid object
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The wires must not intersect
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* all wires must be closed
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* there cannot be any intersecting or self-intersecting wires
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* wires must be listed from outside in
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* more than one levels of nesting is not supported reliably
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This method will attempt to sort the wires, but there is much work remaining to make this method
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reliable.
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"""
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freeCADWires = [outerWire.wrapped]
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for w in innerWires:
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freeCADWires.append(w.wrapped)
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f = FreeCADPart.Face(freeCADWires)
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result = f.revolve(Base.Vector(0,0,0), Vector(0,1,0), angleDegrees)
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return Shape.cast(result)
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def tessellate(self,tolerance):
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return self.wrapped.tessellate(tolerance)
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