FreeCADView Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0004328 | Project Tools & Websites | General | public | 2020-04-28 15:14 | 2021-02-06 06:36 |
| Reporter | tomkcook | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Target Version | 0.20 | ||||
| Summary | 0004328: Several "Scripted objects" examples don't work | ||||
| Description | See the examples on this wiki page. The "Basic example" works as advertised. But the "Other more complex example", when pasted directly into the FreeCAD python console, produces a couple of triangles, not the expected octahedron. And when it is modified as suggested in the section "Making objects selectable", only a single red line is shown in the 3D display (which is then not selectable). I have pasted my modified version of this code into the "Additional information" section because I couldn't make the file attachment work. I have tried this on a couple of builds from source, most recently on commit bc107eacc8e020a779b2bbcb21559283ee440268, as well as the 0.18.3 that is distributed with Ubuntu 19.10 and the 0.18.4 that is distributed with Ubuntu 20.04. None of them worked as expected, though there were minor variations in the results. | ||||
| Steps To Reproduce | Open FreeCAD. Paste the attached code into the FreeCAD python console. | ||||
| Additional Information | import FreeCAD, FreeCADGui, Part import pivy from pivy import coin class Octahedron: def __init__(self, obj): "Add some custom properties to our box feature" obj.addProperty("App::PropertyLength","Length","Octahedron","Length of the octahedron").Length=1.0 obj.addProperty("App::PropertyLength","Width","Octahedron","Width of the octahedron").Width=1.0 obj.addProperty("App::PropertyLength","Height","Octahedron", "Height of the octahedron").Height=1.0 obj.addProperty("Part::PropertyPartShape","Shape","Octahedron", "Shape of the octahedron") obj.Proxy = self def execute(self, fp): # Define six vetices for the shape v1 = FreeCAD.Vector(0,0,0) v2 = FreeCAD.Vector(fp.Length,0,0) v3 = FreeCAD.Vector(0,fp.Width,0) v4 = FreeCAD.Vector(fp.Length,fp.Width,0) v5 = FreeCAD.Vector(fp.Length/2,fp.Width/2,fp.Height/2) v6 = FreeCAD.Vector(fp.Length/2,fp.Width/2,-fp.Height/2) # Make the wires/faces f1 = self.make_face(v1,v2,v5) f2 = self.make_face(v2,v4,v5) f3 = self.make_face(v4,v3,v5) f4 = self.make_face(v3,v1,v5) f5 = self.make_face(v2,v1,v6) f6 = self.make_face(v4,v2,v6) f7 = self.make_face(v3,v4,v6) f8 = self.make_face(v1,v3,v6) shell=Part.makeShell([f1,f2,f3,f4,f5,f6,f7,f8]) solid=Part.makeSolid(shell) fp.Shape = solid # helper mehod to create the faces def make_face(self,v1,v2,v3): wire = Part.makePolygon([v1,v2,v3,v1]) face = Part.Face(wire) return face class ViewProviderOctahedron: def __init__(self, obj): "Set this object to the proxy object of the actual view provider" obj.addProperty("App::PropertyColor","Color","Octahedron","Color of the octahedron").Color=(1.0,0.0,0.0) obj.Proxy = self def attach(self, obj): "Setup the scene sub-graph of the view provider, this method is mandatory" self.shaded = coin.SoGroup() self.wireframe = coin.SoGroup() self.scale = coin.SoScale() self.color = coin.SoBaseColor() self.data=coin.SoCoordinate3() self.face=coin.SoIndexedLineSet() selectionNode = coin.SoType.fromName("SoFCSelection").createInstance() selectionNode.documentName.setValue(FreeCAD.ActiveDocument.Name) selectionNode.objectName.setValue(obj.Object.Name) # here obj is the ViewObject, we need its associated App Object selectionNode.subElementName.setValue("Face") selectionNode.addChild(self.face) self.shaded.addChild(self.scale) self.shaded.addChild(self.color) self.shaded.addChild(self.data) self.shaded.addChild(selectionNode) #self.shaded.addChild(self.face) obj.addDisplayMode(self.shaded,"Shaded"); style=coin.SoDrawStyle() style.style = coin.SoDrawStyle.LINES self.wireframe.addChild(style) self.wireframe.addChild(self.scale) self.wireframe.addChild(self.color) self.wireframe.addChild(self.data) self.wireframe.addChild(selectionNode) #self.shaded.addChild(self.face) obj.addDisplayMode(self.wireframe,"Wireframe"); self.onChanged(obj,"Color") def updateData(self, fp, prop): "If a property of the handled feature has changed we have the chance to handle this here" # fp is the handled feature, prop is the name of the property that has changed if prop == "Shape": s = fp.getPropertyByName("Shape") self.data.point.setNum(6) cnt=0 for i in s.Vertexes: self.data.point.set1Value(cnt,i.X,i.Y,i.Z) cnt=cnt+1 self.face.coordIndex.set1Value(0,0) self.face.coordIndex.set1Value(1,1) self.face.coordIndex.set1Value(2,2) self.face.coordIndex.set1Value(3,-1) self.face.coordIndex.set1Value(4,1) self.face.coordIndex.set1Value(5,3) self.face.coordIndex.set1Value(6,2) self.face.coordIndex.set1Value(7,-1) self.face.coordIndex.set1Value(8,3) self.face.coordIndex.set1Value(9,4) self.face.coordIndex.set1Value(10,2) self.face.coordIndex.set1Value(11,-1) self.face.coordIndex.set1Value(12,4) self.face.coordIndex.set1Value(13,0) self.face.coordIndex.set1Value(14,2) self.face.coordIndex.set1Value(15,-1) self.face.coordIndex.set1Value(16,1) self.face.coordIndex.set1Value(17,0) self.face.coordIndex.set1Value(18,5) self.face.coordIndex.set1Value(19,-1) self.face.coordIndex.set1Value(20,3) self.face.coordIndex.set1Value(21,1) self.face.coordIndex.set1Value(22,5) self.face.coordIndex.set1Value(23,-1) self.face.coordIndex.set1Value(24,4) self.face.coordIndex.set1Value(25,3) self.face.coordIndex.set1Value(26,5) self.face.coordIndex.set1Value(27,-1) self.face.coordIndex.set1Value(28,0) self.face.coordIndex.set1Value(29,4) self.face.coordIndex.set1Value(30,5) self.face.coordIndex.set1Value(31,-1) def getDisplayModes(self,obj): "Return a list of display modes." modes=[] modes.append("Shaded") modes.append("Wireframe") return modes def getDefaultDisplayMode(self): "Return the name of the default display mode. It must be defined in getDisplayModes." return "Shaded" def setDisplayMode(self,mode): return mode def onChanged(self, vp, prop): "Here we can do something when a single property got changed" FreeCAD.Console.PrintMessage("Change property: " + str(prop) + "\n") if prop == "Color": c = vp.getPropertyByName("Color") self.color.rgb.setValue(c[0],c[1],c[2]) def getIcon(self): return """ /* XPM */ static const char * ViewProviderBox_xpm[] = { "16 16 6 1", " c None", ". c #141010", "+ c #615BD2", "@ c #C39D55", "# c #000000", "$ c #57C355", " ........", " ......++..+..", " .@@@@.++..++.", " .@@@@.++..++.", " .@@ .++++++.", " ..@@ .++..++.", "###@@@@ .++..++.", "##$.@@$#.++++++.", "#$#$.$$$........", "#$$####### ", "#$$#$$$$$# ", "#$$#$$$$$# ", "#$$#$$$$$# ", " #$#$$$$$# ", " ##$$$$$# ", " ####### "}; """ def __getstate__(self): return None def __setstate__(self,state): return None FreeCAD.newDocument() a=FreeCAD.ActiveDocument.addObject("App::FeaturePython","Octahedron") Octahedron(a) ViewProviderOctahedron(a.ViewObject) | ||||
| Tags | #post-to-forum | ||||
| FreeCAD Information | OS: Ubuntu 20.04 LTS (ubuntu:GNOME/ubuntu) Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.20816 (Git) Build type: Unknown Branch: master Hash: bc107eacc8e020a779b2bbcb21559283ee440268 Python version: 3.8.2 Qt version: 5.12.8 Coin version: 4.0.0 OCC version: 7.3.0 Locale: English/United Kingdom (en_GB) | ||||
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@tomkcook : Please address your issue according our reporting guidelines by first opening a topic on our forum ("Python" subsection) so community can vet the issue and narrow down the causes. Cross-link the topic with this ticket. Thx |
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@openBrain : I raised the problems described in this thread and got very little response. If that thread reaches a resolution and you want to assign me a wiki login, I'm very happy to update the documentation myself. |
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Have also just verified the same result using the latest AppImage version downloaded from the FreeCAD website. |
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This ticket has been migrated to GitHub as issue 6052. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2020-04-28 15:14 | tomkcook | New Issue | |
| 2020-04-28 19:44 | openBrain | Tag Attached: #post-to-forum | |
| 2020-04-28 19:45 | openBrain | Status | new => feedback |
| 2020-04-28 19:45 | openBrain | Note Added: 0014386 | |
| 2020-04-29 07:59 | tomkcook | Note Added: 0014388 | |
| 2020-04-29 07:59 | tomkcook | Status | feedback => new |
| 2020-04-30 10:52 | tomkcook | Note Added: 0014390 | |
| 2021-02-06 06:36 | abdullah | Target Version | => 0.20 |
