""" This module tests cadquery creation and manipulation functions """ #system modules import math,sys,os.path,time #my modules from cadquery import * from cadquery import exporters from tests import BaseTest,writeStringToFile,makeUnitCube,readFileAsString,makeUnitSquareWire,makeCube #where unit test output will be saved import sys if sys.platform.startswith("win"): OUTDIR = "c:/temp" else: OUTDIR = "/tmp" SUMMARY_FILE = os.path.join(OUTDIR,"testSummary.html") SUMMARY_TEMPLATE=""" """ TEST_RESULT_TEMPLATE="""

%(name)s

%(svg)s

""" #clean up any summary file that is in the output directory. #i know, this sux, but there is no other way to do this in 2.6, as we cannot do class fixutres till 2.7 writeStringToFile(SUMMARY_TEMPLATE,SUMMARY_FILE) class TestCadQuery(BaseTest): def tearDown(self): """ Update summary with data from this test. This is a really hackey way of doing it-- we get a startup event from module load, but there is no way in unittest to get a single shutdown event-- except for stuff in 2.7 and above So what we do here is to read the existing file, stick in more content, and leave it """ svgFile = os.path.join(OUTDIR,self._testMethodName + ".svg") #all tests do not produce output if os.path.exists(svgFile): existingSummary = readFileAsString(SUMMARY_FILE) svgText = readFileAsString(svgFile) svgText = svgText.replace('',"") #now write data into the file #the content we are replacing it with also includes the marker, so it can be replaced again existingSummary = existingSummary.replace("", TEST_RESULT_TEMPLATE % ( dict(svg=svgText, name=self._testMethodName))) writeStringToFile(existingSummary,SUMMARY_FILE) def saveModel(self,shape): """ shape must be a CQ object Save models in SVG and STEP format """ shape.exportSvg(os.path.join(OUTDIR,self._testMethodName + ".svg")) shape.val().exportStep(os.path.join(OUTDIR,self._testMethodName + ".step")) def testCubePlugin(self): """ Tests a plugin that combines cubes together with a base :return: """ #make the plugin method def makeCubes(self,length): #self refers to the CQ or Workplane object #inner method that creates a cube def _singleCube(pnt): #pnt is a location in local coordinates #since we're using eachpoint with useLocalCoordinates=True return Solid.makeBox(length,length,length,pnt) #use CQ utility method to iterate over the stack, call our #method, and convert to/from local coordinates. return self.eachpoint(_singleCube,True) #link the plugin in Workplane.makeCubes = makeCubes #call it result = Workplane("XY").box(6.0,8.0,0.5).faces(">Z").rect(4.0,4.0,forConstruction=True).vertices() result = result.makeCubes(1.0) result = result.combineSolids() self.saveModel(result) self.assertEquals(1,result.solids().size() ) def testCylinderPlugin(self): """ Tests a cylinder plugin. The plugin creates cylinders of the specified radius and height for each item on the stack This is a very short plugin that illustrates just about the simplest possible plugin """ def cylinders(self,radius,height): def _cyl(pnt): #inner function to build a cylinder return Solid.makeCylinder(radius,height,pnt) #combine all the cylinders into a single compound r = self.eachpoint(_cyl,True).combineSolids() return r Workplane.cyl = cylinders #now test. here we want weird workplane to see if the objects are transformed right s = Workplane(Plane(Vector((0,0,0)),Vector((1,-1,0)),Vector((1,1,0)))).rect(2.0,3.0,forConstruction=True).vertices() \ .cyl(0.25,0.5) self.assertEquals(1,s.solids().size() ) self.saveModel(s) def testPolygonPlugin(self): """ Tests a plugin to make regular polygons around points on the stack Demonstratings using eachpoint to allow working in local coordinates to create geometry """ def rPoly(self,nSides,diameter): def _makePolygon(center): #pnt is a vector in local coordinates angle = 2.0 *math.pi / nSides pnts = [] for i in range(nSides+1): pnts.append( center + Vector((diameter / 2.0 * math.cos(angle*i)),(diameter / 2.0 * math.sin(angle*i)),0)) return Wire.makePolygon(pnts) return self.eachpoint(_makePolygon,True) Workplane.rPoly = rPoly s = Workplane("XY").box(4.0,4.0,0.25).faces(">Z").workplane().rect(2.0,2.0,forConstruction=True).vertices()\ .rPoly(5,0.5).cutThruAll() self.assertEquals(26,s.faces().size()) #6 base sides, 4 pentagons, 5 sides each = 26 self.saveModel(s) def testPointList(self): "Tests adding points and using them" c = CQ(makeUnitCube()) s = c.faces(">Z").workplane().pushPoints([(-0.3,0.3),(0.3,0.3),(0,0)]) self.assertEqual(3,s.size()) #TODO: is the ability to iterate over points with circle really worth it? #maybe we should just require using all() and a loop for this. the semantics and #possible combinations got too hard ( ie, .circle().circle() ) was really odd body = s.circle(0.05).cutThruAll() self.saveModel(body) self.assertEqual(9,body.faces().size()) def testWorkplaneFromFace(self): s = CQ(makeUnitCube()).faces(">Z").workplane() #make a workplane on the top face r = s.circle(0.125).cutBlind(-2.0) self.saveModel(r) #the result should have 7 faces self.assertEqual(7,r.faces().size() ) self.assertEqual(type(r.val()), Solid) self.assertEqual(type(r.first().val()),Solid) def testFrontReference(self): s = CQ(makeUnitCube()).faces("front").workplane() #make a workplane on the top face r = s.circle(0.125).cutBlind(-2.0) self.saveModel(r) #the result should have 7 faces self.assertEqual(7,r.faces().size() ) self.assertEqual(type(r.val()), Solid) self.assertEqual(type(r.first().val()),Solid) def testLoft(self): """ Test making a lofted solid :return: """ s = Workplane("XY").circle(4.0).workplane(5.0).rect(2.0,2.0).loft() self.saveModel(s) #the result should have 7 faces self.assertEqual(1,s.solids().size()) #the resulting loft had a split on the side, not sure why really, i expected only 3 faces self.assertEqual(7,s.faces().size() ) def testLoftCombine(self): """ test combining a lof with another feature :return: """ s = Workplane("front").box(4.0,4.0,0.25).faces(">Z").circle(1.5)\ .workplane(offset=3.0).rect(0.75,0.5).loft(combine=True) self.saveModel(s) #self.assertEqual(1,s.solids().size() ) #self.assertEqual(8,s.faces().size() ) def testRectArray(self): NUMX=3 NUMY=3 s = Workplane("XY").box(40,40,5,centered=(True,True,True)).faces(">Z").workplane().rarray(8.0,8.0,NUMX,NUMY,True).circle(2.0).extrude(2.0) #s = Workplane("XY").box(40,40,5,centered=(True,True,True)).faces(">Z").workplane().circle(2.0).extrude(2.0) self.saveModel(s) self.assertEqual(6+NUMX*NUMY*2,s.faces().size()) #6 faces for the box, 2 faces for each cylinder def testNestedCircle(self): s = Workplane("XY").box(40,40,5).pushPoints([(10,0),(0,10)]).circle(4).circle(2).extrude(4) self.saveModel(s) self.assertEqual(14,s.faces().size() ) def testLegoBrick(self): #test making a simple lego brick #which of the below #inputs lbumps = 8 wbumps = 2 #lego brick constants P = 8.0 #nominal pitch c = 0.1 #clearance on each brick side H = 1.2 * P #nominal height of a brick bumpDiam = 4.8 #the standard bump diameter t = ( P - ( 2*c) - bumpDiam ) / 2.0 # the nominal thickness of the walls, normally 1.5 postDiam = P - t #works out to 6.5 total_length = lbumps*P - 2.0*c total_width = wbumps*P - 2.0*c #build the brick s = Workplane("XY").box(total_length,total_width,H) #make the base s = s.faces("Z").workplane().rarray(P,P,lbumps,wbumps,True).circle(bumpDiam/2.0).extrude(1.8) # make the bumps on the top #add posts on the bottom. posts are different diameter depending on geometry #solid studs for 1 bump, tubes for multiple, none for 1x1 tmp = s.faces(" 1 and wbumps > 1: tmp = tmp.rarray(P,P,lbumps - 1,wbumps - 1,center=True).circle(postDiam/2.0).circle(bumpDiam/2.0).extrude(H-t) elif lbumps > 1: tmp = tmp.rarray(P,P,lbumps - 1,1,center=True).circle(t).extrude(H-t) elif wbumps > 1: tmp = tmp.rarray(P,P,1,wbumps -1,center=True).circle(t).extrude(H-t) self.saveModel(s) def testAngledHoles(self): s = Workplane("front").box(4.0,4.0,0.25).faces(">Z").workplane().transformed(offset=Vector(0,-1.5,1.0),rotate=Vector(60,0,0))\ .rect(1.5,1.5,forConstruction=True).vertices().hole(0.25) self.saveModel(s) self.assertEqual(10,s.faces().size()) def testTranslateSolid(self): c = CQ(makeUnitCube()) self.assertAlmostEqual(0.0,c.faces("Z").workplane().rect(0.25,0.25).extrude(0.5,True) self.assertEqual(11,t.faces().size()) #of course the result has 11 faces self.assertEqual(11,r.faces().size()) #r does as well. the context solid for r was updated since combine was true self.saveModel(r) def testSolidReferenceCombineFalse(self): s = Workplane(Plane.XY()) r = s.rect(2.0,2.0).extrude(0.5) self.assertEqual(6,r.faces().size() ) #the result of course has 6 faces self.assertEqual(0,s.faces().size() ) # the original workplane does not, because it did not have a solid initially t = r.faces(">Z").workplane().rect(0.25,0.25).extrude(0.5,False) self.assertEqual(6,t.faces().size()) #result has 6 faces, becuase it was not combined with the original self.assertEqual(6,r.faces().size()) #original is unmodified as well #subseuent opertions use that context solid afterwards def testSimpleWorkplane(self): """ A simple square part with a hole in it """ s = Workplane(Plane.XY()) r = s.rect(2.0,2.0).extrude(0.5)\ .faces(">Z").workplane()\ .circle(0.25).cutBlind(-1.0) self.saveModel(r) self.assertEqual(7,r.faces().size() ) def testTriangularPrism(self): s = Workplane("XY").lineTo(1,0).lineTo(1,1).close().extrude(0.2) self.saveModel(s) def testMultiWireWorkplane(self): """ A simple square part with a hole in it-- but this time done as a single extrusion with two wires, as opposed to s cut """ s = Workplane(Plane.XY()) r = s.rect(2.0,2.0).circle(0.25).extrude(0.5) self.saveModel(r) self.assertEqual(7,r.faces().size() ) def testConstructionWire(self): """ Tests a wire with several holes, that are based on the vertices of a square also tests using a workplane plane other than XY """ s = Workplane(Plane.YZ()) r = s.rect(2.0,2.0).rect(1.3,1.3,forConstruction=True).vertices().circle(0.125).extrude(0.5) self.saveModel(r) self.assertEqual(10,r.faces().size() ) # 10 faces-- 6 plus 4 holes, the vertices of the second rect. def testTwoWorkplanes(self): """ Tests a model that uses more than one workplane """ #base block s = Workplane(Plane.XY()) #TODO: this syntax is nice, but the iteration might not be worth #the complexity. #the simpler and slightly longer version would be: # r = s.rect(2.0,2.0).rect(1.3,1.3,forConstruction=True).vertices() # for c in r.all(): # c.circle(0.125).extrude(0.5,True) r = s.rect(2.0,2.0).rect(1.3,1.3,forConstruction=True).vertices().circle(0.125).extrude(0.5) #side hole, blind deep 1.9 t = r.faces(">Y").workplane().circle(0.125).cutBlind(-1.9) self.saveModel(t) self.assertEqual(12,t.faces().size() ) def testCutThroughAll(self): """ Tests a model that uses more than one workplane """ #base block s = Workplane(Plane.XY()) r = s.rect(2.0,2.0).rect(1.3,1.3,forConstruction=True).vertices().circle(0.125).extrude(0.5) #side hole, thru all t = r.faces(">Y").workplane().circle(0.125).cutThruAll() self.saveModel(t) self.assertEqual(11,t.faces().size() ) def testCutToFaceOffsetNOTIMPLEMENTEDYET(self): """ Tests cutting up to a given face, or an offset from a face """ #base block s = Workplane(Plane.XY()) r = s.rect(2.0,2.0).rect(1.3,1.3,forConstruction=True).vertices().circle(0.125).extrude(0.5) #side hole, up to 0.1 from the last face try: t = r.faces(">Y").workplane().circle(0.125).cutToOffsetFromFace(r.faces().mminDist(Dir.Y),0.1) self.assertEqual(10,t.faces().size() ) #should end up being a blind hole t.first().val().exportStep('c:/temp/testCutToFace.STEP') except: pass #Not Implemented Yet def testWorkplaneOnExistingSolid(self): "Tests extruding on an existing solid" c = CQ( makeUnitCube()).faces(">Z").workplane().circle(0.25).circle(0.125).extrude(0.25) self.saveModel(c) self.assertEqual(10,c.faces().size() ) def testWorkplaneCenterMove(self): #this workplane is centered at x=0.5,y=0.5, the center of the upper face s = Workplane("XY").box(1,1,1).faces(">Z").workplane().center(-0.5,-0.5) # move the center to the corner t = s.circle(0.25).extrude(0.2) # make a boss self.assertEqual(9,t.faces().size() ) self.saveModel(t) def testBasicLines(self): "Make a triangluar boss" global OUTDIR s = Workplane(Plane.XY()) #TODO: extrude() should imply wire() if not done already #most users dont understand what a wire is, they are just drawing r = s.lineTo(1.0,0).lineTo(0,1.0).close().wire().extrude(0.25) r.val().exportStep(os.path.join(OUTDIR, 'testBasicLinesStep1.STEP')) self.assertEqual(0,s.faces().size()) #no faces on the original workplane self.assertEqual(5,r.faces().size() ) # 5 faces on newly created object #now add a circle through a side face r.faces("+XY").workplane().circle(0.08).cutThruAll() self.assertEqual(6,r.faces().size()) r.val().exportStep(os.path.join(OUTDIR, 'testBasicLinesXY.STEP')) #now add a circle through a top r.faces("+Z").workplane().circle(0.08).cutThruAll() self.assertEqual(9,r.faces().size()) r.val().exportStep(os.path.join(OUTDIR, 'testBasicLinesZ.STEP')) self.saveModel(r) def testOccBottle(self): """ Make the OCC bottle example. """ L = 20.0 w = 6.0 t = 3.0 s = Workplane(Plane.XY()) #draw half the profile of the bottle p = s.center(-L/2.0,0).vLine(w/2.0).threePointArc((L/2.0, w/2.0 + t),(L,w/2.0)).vLine(-w/2.0).mirrorX()\ .extrude(30.0,True) #make the neck p.faces(">Z").workplane().circle(3.0).extrude(2.0,True) #.edges().fillet(0.05) #make a shell p.faces(">Z").shell(0.3) self.saveModel(p) def testSplineShape(self): """ Tests making a shape with an edge that is a spline """ s = Workplane(Plane.XY()) sPnts = [ (2.75,1.5), (2.5,1.75), (2.0,1.5), (1.5,1.0), (1.0,1.25), (0.5,1.0), (0,1.0) ] r = s.lineTo(3.0,0).lineTo(3.0,1.0).spline(sPnts).close() r = r.extrude(0.5) self.saveModel(r) def testSimpleMirror(self): """ Tests a simple mirroring operation """ s = Workplane("XY").lineTo(2,2).threePointArc((3,1),(2,0)) \ .mirrorX().extrude(0.25) self.assertEquals(6,s.faces().size()) self.saveModel(s) def testIbeam(self): """ Make an ibeam. demonstrates fancy mirroring """ s = Workplane(Plane.XY()) L = 100.0 H = 20.0 W = 20.0 t = 1.0 #TODO: for some reason doing 1/4 of the profile and mirroring twice ( .mirrorX().mirrorY() ) #did not work, due to a bug in freecad-- it was losing edges when createing a composite wire. #i just side-stepped it for now pts = [ (0,H/2.0), (W/2.0,H/2.0), (W/2.0,(H/2.0 - t)), (t/2.0,(H/2.0-t)), (t/2.0,(t - H/2.0)), (W/2.0,(t -H/2.0)), (W/2.0,H/-2.0), (0,H/-2.0) ] r = s.polyline(pts).mirrorY() #these other forms also work res = r.extrude(L) self.saveModel(res) def testCone(self): "test that a simple sphere works" s = Solid.makeCone(0,1.0,2.0) t = CQ(s) self.saveModel(t) self.assertEqual(2,t.faces().size()) def testFillet(self): "Tests filleting edges on a solid" c = CQ( makeUnitCube()).faces(">Z").workplane().circle(0.25).extrude(0.25,True).edges("|Z").fillet(0.2) self.saveModel(c) self.assertEqual(12,c.faces().size() ) def testCounterBores(self): """Tests making a set of counterbored holes in a face""" c = CQ(makeCube(3.0)) pnts=[ (-1.0,-1.0),(0.0,0.0),(1.0,1.0) ] c.faces(">Z").workplane().pushPoints(pnts).cboreHole(0.1,0.25,0.25,.75) self.assertEquals(18,c.faces().size() ) self.saveModel(c) def testCounterSinks(self): """ Tests countersinks """ s = Workplane(Plane.XY()) result = s.rect(2.0,4.0).extrude(0.5).faces(">Z").workplane()\ .rect(1.5,3.5,forConstruction=True).vertices().cskHole(0.125, 0.25,82,depth=None) self.saveModel(result) def testSplitKeepingHalf(self): "Tests splitting a solid" #drill a hole in the side c = CQ(makeUnitCube()).faces(">Z").workplane().circle(0.25).cutThruAll() self.assertEqual(7,c.faces().size() ) #now cut it in half sideways c.faces(">Y").workplane(-0.5).split(keepTop=True) self.saveModel(c) self.assertEqual(8,c.faces().size()) def testSplitKeepingBoth(self): "Tests splitting a solid" #drill a hole in the side c = CQ(makeUnitCube()).faces(">Z").workplane().circle(0.25).cutThruAll() self.assertEqual(7,c.faces().size() ) #now cut it in half sideways result = c.faces(">Y").workplane(-0.5).split(keepTop=True,keepBottom=True) #stack will have both halves, original will be unchanged self.assertEqual(2, result.solids().size()) #two solids are on the stack, eac self.assertEqual(8,result.solids().item(0).faces().size()) self.assertEqual(8,result.solids().item(1).faces().size()) def testBoxDefaults(self): """ Tests creating a single box """ s = Workplane("XY").box(2,3,4) self.assertEquals(1,s.solids().size() ) self.saveModel(s) def testSimpleShell(self): """ Create s simple box """ s = Workplane("XY").box(2,2,2).faces("+Z").shell(0.05) self.saveModel(s) self.assertEquals(23,s.faces().size() ) def testOpenCornerShell(self): s = Workplane("XY").box(1,1,1) s1 = s.faces("+Z") s1.add(s.faces("+Y")).add(s.faces("+X")) self.saveModel(s1.shell(0.2)) def testTopFaceFillet(self): s = Workplane("XY").box(1,1,1).faces("+Z").edges().fillet(0.1) self.assertEquals(s.faces().size(), 10) self.saveModel(s) def testBoxPointList(self): """ Tests creating an array of boxes """ s = Workplane("XY").rect(4.0,4.0,forConstruction=True).vertices().box(0.25,0.25,0.25,combine=True) #1 object, 4 solids beause the object is a compound self.assertEquals(1,s.solids().size() ) self.assertEquals(1,s.size()) self.saveModel(s) s = Workplane("XY").rect(4.0,4.0,forConstruction=True).vertices().box(0.25,0.25,0.25,combine=False) #4 objects, 4 solids, becaue each is a separate solid self.assertEquals(4,s.size()) self.assertEquals(4,s.solids().size() ) def testBoxCombine(self): s = Workplane("XY").box(4,4,0.5).faces(">Z").workplane().rect(3,3,forConstruction=True).vertices().box(0.25,0.25,0.25,combine=True) self.saveModel(s) self.assertEquals(1,s.solids().size()) # we should have one big solid self.assertEquals(26,s.faces().size()) # should have 26 faces. 6 for the box, and 4x5 for the smaller cubes def testQuickStartXY(self): s = Workplane(Plane.XY()).box(2,4,0.5).faces(">Z").workplane().rect(1.5,3.5,forConstruction=True)\ .vertices().cskHole(0.125, 0.25,82,depth=None) self.assertEquals(1,s.solids().size()) self.assertEquals(14,s.faces().size()) self.saveModel(s) def testQuickStartYZ(self): s = Workplane(Plane.YZ()).box(2,4,0.5).faces(">X").workplane().rect(1.5,3.5,forConstruction=True)\ .vertices().cskHole(0.125, 0.25,82,depth=None) self.assertEquals(1,s.solids().size()) self.assertEquals(14,s.faces().size()) self.saveModel(s) def testQuickStartXZ(self): s = Workplane(Plane.XZ()).box(2,4,0.5).faces(">Y").workplane().rect(1.5,3.5,forConstruction=True)\ .vertices().cskHole(0.125, 0.25,82,depth=None) self.assertEquals(1,s.solids().size()) self.assertEquals(14,s.faces().size()) self.saveModel(s) def testDoubleTwistedLoft(self): s = Workplane("XY").polygon(8,20.0).workplane(offset=4.0).transformed(rotate=Vector(0,0,15.0)).polygon(8,20).loft() s2 = Workplane("XY").polygon(8,20.0).workplane(offset=-4.0).transformed(rotate=Vector(0,0,15.0)).polygon(8,20).loft() #self.assertEquals(10,s.faces().size()) #self.assertEquals(1,s.solids().size()) s3 = s.combineSolids(s2) self.saveModel(s3) def testTwistedLoft(self): s = Workplane("XY").polygon(8,20.0).workplane(offset=4.0).transformed(rotate=Vector(0,0,15.0)).polygon(8,20).loft() self.assertEquals(10,s.faces().size()) self.assertEquals(1,s.solids().size()) self.saveModel(s) def testUnions(self): #duplicates a memory problem of some kind reported when combining lots of objects s = Workplane("XY").rect(0.5,0.5).extrude(5.0) o = [] beginTime = time.time() for i in range(15): t = Workplane("XY").center(10.0*i,0).rect(0.5,0.5).extrude(5.0) o.append(t) #union stuff for oo in o: s = s.union(oo) print "Total time %0.3f" % (time.time() - beginTime) def testCombineSolidsInLoop(self): #duplicates a memory problem of some kind reported when combining lots of objects s = Workplane("XY").rect(0.5,0.5).extrude(5.0) o = [] beginTime = time.time() for i in range(15): t = Workplane("XY").center(10.0*i,0).rect(0.5,0.5).extrude(5.0) o.append(t) #append the 'good way' for oo in o: s.add(oo) s = s.combineSolids() print "Total time %0.3f" % (time.time() - beginTime) self.saveModel(s) def testCup(self): """ UOM = "mm" # # PARAMETERS and PRESETS # These parameters can be manipulated by end users # bottomDiameter = FloatParam(min=10.0,presets={'default':50.0,'tumbler':50.0,'shot':35.0,'tea':50.0,'saucer':100.0},group="Basics", desc="Bottom diameter") topDiameter = FloatParam(min=10.0,presets={'default':85.0,'tumbler':85.0,'shot':50.0,'tea':51.0,'saucer':400.0 },group="Basics", desc="Top diameter") thickness = FloatParam(min=0.1,presets={'default':2.0,'tumbler':2.0,'shot':2.66,'tea':2.0,'saucer':2.0},group="Basics", desc="Thickness") height = FloatParam(min=1.0,presets={'default':80.0,'tumbler':80.0,'shot':59.0,'tea':125.0,'saucer':40.0},group="Basics", desc="Overall height") lipradius = FloatParam(min=1.0,presets={'default':1.0,'tumbler':1.0,'shot':0.8,'tea':1.0,'saucer':1.0},group="Basics", desc="Lip Radius") bottomThickness = FloatParam(min=1.0,presets={'default':5.0,'tumbler':5.0,'shot':10.0,'tea':10.0,'saucer':5.0},group="Basics", desc="BottomThickness") # # Your build method. It must return a solid object # def build(): br = bottomDiameter.value / 2.0 tr = topDiameter.value / 2.0 t = thickness.value s1 = Workplane("XY").circle(br).workplane(offset=height.value).circle(tr).loft() s2 = Workplane("XY").workplane(offset=bottomThickness.value).circle(br - t ).workplane(offset=height.value - t ).circle(tr - t).loft() cup = s1.cut(s2) cup.faces(">Z").edges().fillet(lipradius.value) return cup """ #for some reason shell doesnt work on this simple shape. how disappointing! td = 50.0 bd = 20.0 h = 10.0 t = 1.0 s1 = Workplane("XY").circle(bd).workplane(offset=h).circle(td).loft() s2 = Workplane("XY").workplane(offset=t).circle(bd-(2.0*t)).workplane(offset=(h-t)).circle(td-(2.0*t)).loft() s3 = s1.cut(s2) self.saveModel(s3) def testEnclosure(self): """ Builds an electronics enclosure Original FreeCAD script: 81 source statements ,not including variables This script: 34 """ #parameter definitions p_outerWidth = 100.0 #Outer width of box enclosure p_outerLength = 150.0 #Outer length of box enclosure p_outerHeight = 50.0 #Outer height of box enclosure p_thickness = 3.0 #Thickness of the box walls p_sideRadius = 10.0 #Radius for the curves around the sides of the bo p_topAndBottomRadius = 2.0 #Radius for the curves on the top and bottom edges of the box p_screwpostInset = 12.0 #How far in from the edges the screwposts should be place. p_screwpostID = 4.0 #nner Diameter of the screwpost holes, should be roughly screw diameter not including threads p_screwpostOD = 10.0 #Outer Diameter of the screwposts.\nDetermines overall thickness of the posts p_boreDiameter = 8.0 #Diameter of the counterbore hole, if any p_boreDepth = 1.0 #Depth of the counterbore hole, if p_countersinkDiameter = 0.0 #Outer diameter of countersink. Should roughly match the outer diameter of the screw head p_countersinkAngle = 90.0 #Countersink angle (complete angle between opposite sides, not from center to one side) p_flipLid = True #Whether to place the lid with the top facing down or not. p_lipHeight = 1.0 #Height of lip on the underside of the lid.\nSits inside the box body for a snug fit. #outer shell oshell = Workplane("XY").rect(p_outerWidth,p_outerLength).extrude(p_outerHeight + p_lipHeight) #weird geometry happens if we make the fillets in the wrong order if p_sideRadius > p_topAndBottomRadius: oshell.edges("|Z").fillet(p_sideRadius) oshell.edges("#Z").fillet(p_topAndBottomRadius) else: oshell.edges("#Z").fillet(p_topAndBottomRadius) oshell.edges("|Z").fillet(p_sideRadius) #inner shell ishell = oshell.faces("Z").workplane(-p_thickness)\ .rect(POSTWIDTH,POSTLENGTH,forConstruction=True)\ .vertices() for v in postCenters.all(): v.circle(p_screwpostOD/2.0).circle(p_screwpostID/2.0)\ .extrude((-1.0)*(p_outerHeight + p_lipHeight -p_thickness ),True) #split lid into top and bottom parts (lid,bottom) = box.faces(">Z").workplane(-p_thickness -p_lipHeight ).split(keepTop=True,keepBottom=True).all() #splits into two solids #translate the lid, and subtract the bottom from it to produce the lid inset lowerLid = lid.translate((0,0,-p_lipHeight)) cutlip = lowerLid.cut(bottom).translate((p_outerWidth + p_thickness ,0,p_thickness - p_outerHeight + p_lipHeight)) #compute centers for counterbore/countersink or counterbore topOfLidCenters = cutlip.faces(">Z").workplane().rect(POSTWIDTH,POSTLENGTH,forConstruction=True).vertices() #add holes of the desired type if p_boreDiameter > 0 and p_boreDepth > 0: topOfLid = topOfLidCenters.cboreHole(p_screwpostID,p_boreDiameter,p_boreDepth,(2.0)*p_thickness) elif p_countersinkDiameter > 0 and p_countersinkAngle > 0: topOfLid = topOfLidCenters.cskHole(p_screwpostID,p_countersinkDiameter,p_countersinkAngle,(2.0)*p_thickness) else: topOfLid= topOfLidCenters.hole(p_screwpostID,(2.0)*p_thickness) #flip lid upside down if desired if p_flipLid: topOfLid.rotateAboutCenter((1,0,0),180) #return the combined result result =topOfLid.union(bottom) self.saveModel(result)