Macros recipes: Difference between revisions
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=== Convert Meshes to Parts === |
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This macro converts selected meshes to parts. It has a broad tolerance, so use it only with objects that have no curves otherwise you'll get weird results. |
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import FreeCAD,FreeCADGui,Mesh,Part,MeshPart |
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for obj in FreeCADGui.Selection.getSelection(): |
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if "Mesh" in obj.PropertiesList: |
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faces = [] |
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mesh = obj.Mesh |
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segments = mesh.getPlanes(0.01) # use rather strict tolerance here |
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for i in segments: |
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if len(i) > 0: |
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# a segment can have inner holes |
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wires = MeshPart.wireFromSegment(mesh, i) |
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# we assume that the exterior boundary is that one with the biggest bounding box |
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if len(wires) > 0: |
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ext = None |
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max_length = 0 |
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for i in wires: |
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if i.BoundBox.DiagonalLength > max_length: |
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max_length = i.BoundBox.DiagonalLength |
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ext = i |
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wires.remove(ext) |
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# all interior wires mark a hole and must reverse their orientation, otherwise Part.Face fails |
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for i in wires: |
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i.reverse() |
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# make sure that the exterior wires comes as first in the lsit |
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wires.insert(0, ext) |
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faces.append(Part.Face(wires)) |
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shell=Part.Compound(faces) |
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solid = Part.Solid(Part.Shell(faces)) |
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name = obj.Name |
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FreeCAD.ActiveDocument.removeObject(name) |
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FreeCAD.ActiveDocument.addObject("Part::Feature",name).Shape = solid |
Revision as of 13:19, 11 August 2010
Rotate the view by 90°
This macro rotates the current view by 90° to the left. Only works if you are in Top view.
import math from pivy import coin cam = Gui.ActiveDocument.ActiveView.getCameraNode() rot = coin.SbRotation() rot.setValue(coin.SbVec3f(0,0,1),math.pi/2) nrot = cam.orientation.getValue() * rot cam.orientation = nrot
Array copy
This macro copies the selected object several times, on an array grid. You can define the number of rows and columns and the distance between them. You need pyqt installed.
import FreeCAD, FreeCADGui, Part from PyQt4 import QtGui,QtCore def proceed(): try: u = (int(l1.text()),float(l2.text())) v = (int(l3.text()),float(l4.text())) except: FreeCAD.Console.PrintError("Wrong input! Only numbers allowed...\n") sel = FreeCADGui.Selection.getSelection() if sel: sel = sel[0] name = sel.Name shape = sel.Shape for column in range(u[0]): for row in range(v[0]): if (column != 0) or (row != 0): delta = FreeCAD.Vector(column*u[1],row*v[1],0) newshape = sel.Shape newshape.translate(delta) newobject = FreeCAD.ActiveDocument.addObject("Part::Feature",name) newobject.Shape = newshape else: FreeCAD.Console.PrintError("Error: One object must be selected") hide() def hide(): dialog.hide() dialog = QtGui.QDialog() dialog.resize(200,300) dialog.setWindowTitle("Array") la = QtGui.QVBoxLayout(dialog) t1 = QtGui.QLabel("number of columns") la.addWidget(t1) l1 = QtGui.QLineEdit() la.addWidget(l1) t2 = QtGui.QLabel("distance between columns") la.addWidget(t2) l2 = QtGui.QLineEdit() la.addWidget(l2) t3 = QtGui.QLabel("number of rows") la.addWidget(t3) l3 = QtGui.QLineEdit() la.addWidget(l3) t4 = QtGui.QLabel("distance between rows") la.addWidget(t4) l4 = QtGui.QLineEdit() la.addWidget(l4) okbox = QtGui.QDialogButtonBox(dialog) okbox.setOrientation(QtCore.Qt.Horizontal) okbox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok) la.addWidget(okbox) QtCore.QObject.connect(okbox, QtCore.SIGNAL("accepted()"), proceed) QtCore.QObject.connect(okbox, QtCore.SIGNAL("rejected()"), hide) QtCore.QMetaObject.connectSlotsByName(dialog) dialog.show()
Flatten wire
This macro flattens draft wires that are not plane to their median Z coordinate.
import FreeCAD obj = FreeCAD.ActiveDocument.ActiveObject z = 0 for p in obj.Points: z += p.z z = z/len(obj.Points) newpoints = [] for p in obj.Points: newppoints.append(FreeCAD.Vector(p.x,p.y,z)) obj.Points = newppoints
Convert Meshes to Parts
This macro converts selected meshes to parts. It has a broad tolerance, so use it only with objects that have no curves otherwise you'll get weird results.
import FreeCAD,FreeCADGui,Mesh,Part,MeshPart for obj in FreeCADGui.Selection.getSelection(): if "Mesh" in obj.PropertiesList: faces = [] mesh = obj.Mesh segments = mesh.getPlanes(0.01) # use rather strict tolerance here for i in segments: if len(i) > 0: # a segment can have inner holes wires = MeshPart.wireFromSegment(mesh, i) # we assume that the exterior boundary is that one with the biggest bounding box if len(wires) > 0: ext = None max_length = 0 for i in wires: if i.BoundBox.DiagonalLength > max_length: max_length = i.BoundBox.DiagonalLength ext = i wires.remove(ext) # all interior wires mark a hole and must reverse their orientation, otherwise Part.Face fails for i in wires: i.reverse() # make sure that the exterior wires comes as first in the lsit wires.insert(0, ext) faces.append(Part.Face(wires)) shell=Part.Compound(faces) solid = Part.Solid(Part.Shell(faces)) name = obj.Name FreeCAD.ActiveDocument.removeObject(name) FreeCAD.ActiveDocument.addObject("Part::Feature",name).Shape = solid