import FreeCAD as App import FreeCADGui as Gui from PySide.QtCore import QTimer import TechDraw, TechDrawGui from PySide import QtGui, QtCore TDG = TechDrawGui class CursorItem(QtGui.QGraphicsItem): def __init__(self, parent = None, view = None): super().__init__(parent) self.Type = QtGui.QGraphicsItem.UserType + 501 self.setZValue(500) self.margin = 10.0 self.size = 100.0 self.view = view def removeSceneEventFilter(self, a, b): print('removeSceneEventFilter', a, b) def onViewPosChange(self, callback): self.viewPosChangeCallback = callback def boundingRect(self): return QtCore.QRectF(-self.size/2 - self.margin, -self.size/2 - self.margin, self.size + 2.0*self.margin, self.size + 2.0*self.margin) def paint(self, painter, option, widget): #print("paint") painter.setBrush(QtCore.Qt.darkRed) #painter.drawRoundedRect(-100, -100, 200, 200, 50, 50) h = self.size/2.0 painter.drawLine(-h, 0, h, 0) painter.drawLine(0, -h, 0, h) def mousePressEvent(self, event): #print('mouse press', event) self.startMovePos = event.pos() def mouseMoveEvent(self, event): #print('mouse move', event) offset = event.pos() - self.startMovePos self.moveBy(offset.x(), offset.y()) def mouseReleaseEvent(self, event): #print('mouse release', event) #print('new pos', self.x(), self.y()) if self.viewPosChangeCallback is not None: self.viewPosChangeCallback(self.getViewPos()) def getViewPos(self): scale = self.view.Scale * 10.0 return App.Vector(self.x() / scale, -self.y() / scale) def setViewPos(self, p): scale = self.view.Scale * 10.0 self.setPos(p.x * scale, -p.y * scale) class ViewCache: def __init__(self): self.reset() def reset(self): self.projected_origin = None class TechDrawExtensions: views_to_repaint = {} view_cursors = {} view_cache = {} updating_balloon = False edited_view = None enable_selected_part_highlight = False # disable for now, for performance reasons def __init__(self): workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench workbench.docObserver.onObjectTypeChanged('balloon_changed', 'TechDraw::DrawViewBalloon', lambda obj, prop: self.onBalloonChanged(obj, prop)) workbench.docObserver.onObjectTypeSelected('balloon_selected', 'TechDraw::DrawViewBalloon', lambda operation, obj, sub, point: self.onBalloonSelected(operation, obj, sub, point)) def repaint(self, view, fast_render = True): self.views_to_repaint[view] = fast_render QTimer.singleShot(10, self._do_repaint) def _do_repaint(self): from ahb_raster_view import RasterView workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench selection = Gui.Selection.getSelection() to_repaint = self.views_to_repaint.copy() self.views_to_repaint = {} for view, fast_render in to_repaint.items(): if '_overlay' in view.Label: continue #print("Repainting " + view.Name) page = self.getViewPage(view) view_cache = self.getViewCache(view) view_cache.reset() doc = view.Document if not 'Assembly_handbook_RasterView' in view.PropertiesList: view.addProperty("App::PropertyBool", "Assembly_handbook_RasterView", "Assembly_handbook") view.Assembly_handbook_RasterView = True if view.Assembly_handbook_RasterView: print("Rasterizing view " + view.Label + "...") raster_view = RasterView(view) raster_view.render(fast_render) view.Visibility = False overlayName = view.Label + "_overlay" overlay = doc.getObject(overlayName) if overlay is None: overlay = doc.addObject('TechDraw::DrawViewPart', overlayName) page.addView(overlay) overlay_frame_name = view.Label + "_frame" overlay_frame = doc.getObject(overlay_frame_name) if overlay_frame is None: import Draft ''' points = [App.Vector(0.0, 0.0, 0.0), App.Vector(1.01, 0, 0)] obj1 = Draft.makeWire(points, closed=False, face=False, support=None) points = [App.Vector(200.0, 0.0, 0.0), App.Vector(201.01, 0, 0)] obj2 = Draft.makeWire(points, closed=False, face=False, support=None) #overlay_frame = Draft.upgrade([], delete=True) #overlay_frame.Label = overlay_frame_name overlay_frame = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame_name) Draft.Block(overlay_frame) overlay_frame.Components = [obj1, obj2] Draft.ViewProviderDraftPart(overlay_frame.ViewObject) doc.removeObject(obj1.Name) doc.removeObject(obj2.Name)''' #overlay_frame = Draft.makeWire(points, closed=False, face=False, support=None) overlay_frame = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame_name) Draft.Wire(overlay_frame) pos = raster_view.projectImageViewPointTo3D(App.Vector(0,0,0)) pos2 = raster_view.projectImageViewPointTo3D(App.Vector(0.001,0.001,1)) overlay_frame.Points = [pos, pos2] Draft.ViewProviderWire(overlay_frame.ViewObject) overlay_frame.recompute() overlay_frame2_name = view.Label + "_frame2" overlay_frame2 = doc.getObject(overlay_frame2_name) if overlay_frame2 is None: overlay_frame2 = App.ActiveDocument.addObject("Part::Part2DObjectPython", overlay_frame2_name) Draft.Wire(overlay_frame2) pos = raster_view.projectImageViewPointTo3D(App.Vector(1,1,0)) pos2 = raster_view.projectImageViewPointTo3D(App.Vector(1.001,1.001,1)) overlay_frame2.Points = [pos, pos2] Draft.ViewProviderWire(overlay_frame2.ViewObject) overlay_frame2.recompute() overlay.Source = [overlay_frame, overlay_frame2] overlay.X = view.X overlay.Y = view.Y overlay.Direction = view.Direction overlay.XDirection = view.XDirection overlay.ScaleType = view.ScaleType overlay.Scale = view.Scale overlay.ViewObject.LineWidth = 0.01 # migrate balloons from source view to overlay for balloon in page.Views: if balloon.TypeId == 'TechDraw::DrawViewBalloon' and "Assembly_handbook_Source" in balloon.PropertiesList and balloon.SourceView == view: if balloon.SourceView == view: old_source = balloon.Assembly_handbook_Source old_OriginOffsetX = balloon.Assembly_handbook_OriginOffsetX old_OriginOffsetY = balloon.Assembly_handbook_OriginOffsetY old_X = balloon.X old_Y = balloon.Y old_Visibility = balloon.ViewObject.Visibility balloonName = balloon.Name doc.removeObject(balloon.Name) balloon = doc.addObject("TechDraw::DrawViewBalloon", balloonName) balloon.SourceView = overlay balloon.addProperty("App::PropertyXLink", "Assembly_handbook_Source", "Assembly_handbook") balloon.Assembly_handbook_Source = old_source balloon.addProperty("App::PropertyFloat", "Assembly_handbook_OriginOffsetX", "Assembly_handbook") balloon.addProperty("App::PropertyFloat", "Assembly_handbook_OriginOffsetY", "Assembly_handbook") balloon.Assembly_handbook_OriginOffsetX = old_OriginOffsetX balloon.Assembly_handbook_OriginOffsetY = old_OriginOffsetY page.addView(balloon) self.updateBalloon(balloon) balloon.X = old_X balloon.Y = old_Y balloon.ViewObject.Visibility = old_Visibility balloon.recompute() overlay.recompute() page.recompute() else: fast_rendering = False #try: # fast_rendering = view.Assembly_handbook_FastRendering #except: # pass if view.CoarseView: fast_rendering = True selected_balloons = [] for obj in Gui.Selection.getSelection(): if obj.TypeId == 'TechDraw::DrawViewBalloon' and obj.SourceView == view and 'Assembly_handbook_Source' in obj.PropertiesList: selected_balloons.append(obj) #view.clearGeomFormats() # for an unknown reason, this will crash freecad if not fast_rendering: is_first_part = True parts_to_paint = [] # repaint parts that are highlighted by selection if self.enable_selected_part_highlight: for balloon in selected_balloons: part = self.getBalloonSourcePart(balloon) if part in view.XSource: parts_to_paint.append(part) # repaint parts that are new in this step (thick line) prev_view = None if 'Assembly_handbook_PreviousStepView' in view.PropertiesList: prev_view = doc.getObject(view.Assembly_handbook_PreviousStepView) for part in view.XSource: if (prev_view is None or part not in prev_view.XSource) and part not in parts_to_paint: parts_to_paint.append(part) # make sure the list is not empty, so that we reset all lines if len(parts_to_paint) == 0: parts_to_paint.append(None) for part in parts_to_paint: default_line_thickness = 0.05 line_thickness = default_line_thickness default_color = (0.0, 0.0, 0.0) if fast_rendering else (0.5, 0.5, 0.5) color = default_color if part is not None: part_view = workbench.partsCache.getPart2DView(view, part) center = self.computePartCenter(view, part) if self.isNewPartInView(view, part): line_thickness = 0.2 color = (0, 0, 0) if self.enable_selected_part_highlight: for balloon in selected_balloons: if part == self.getBalloonSourcePart(balloon): color = (0.0, 0.85, 0.0) # selection highlighting # iterate edges of actual view and highlight matching edges for edgeIdx in range(10000): hasEdge = False try: edge = view.getEdgeByIndex(edgeIdx) hasEdge = True except: pass if not hasEdge: break is_edge_of_part = False if part is not None and (not hasattr(edge.Curve, 'Degree') or edge.Curve.Degree == 1) and len(edge.Vertexes) == 2: edgeData = [ edge.Vertexes[0].X - center.x, edge.Vertexes[0].Y - center.y, edge.Vertexes[1].X - center.x, edge.Vertexes[1].Y - center.y ] v0 = App.Vector(edgeData[0], edgeData[1]) v1 = App.Vector(edgeData[2], edgeData[3]) for line in part_view.cached_lines: l0 = App.Vector(line[0], line[1]) l1 = App.Vector(line[2], line[3]) #d = abs(edgeData[0] - line[0]) + abs(edgeData[1] - line[1]) + abs(edgeData[2] - line[2]) + abs(edgeData[3] - line[3]) d = v0.distanceToLineSegment(l0, l1).Length + v1.distanceToLineSegment(l0, l1).Length if d < 0.01: is_edge_of_part = True break if is_edge_of_part: view.formatGeometricEdge(edgeIdx,1,line_thickness,color,True) elif is_first_part: # reset edge format view.formatGeometricEdge(edgeIdx,1,default_line_thickness,default_color,True) is_first_part = False view.requestPaint() def updateBalloonCursor(self, view): selected_balloons = [] for obj in Gui.Selection.getSelection(): if obj.TypeId == 'TechDraw::DrawViewBalloon' and obj.SourceView == view and 'Assembly_handbook_Source' in obj.PropertiesList: selected_balloons.append(obj) cursor = self.view_cursors.get(view, None) if cursor is not None: try: cursor.x() # this can throw an exception if the Qt item has been deleted (for example when closing the page) except Exception as ex: print("Re-generating cursor...") cursor = None if cursor is None: cursor = CursorItem(view = view) TDG.addQGIToView(view, cursor); cursor.onViewPosChange(lambda new_pos: self.onCursorMoved(view, new_pos)) self.view_cursors[view] = cursor if len(selected_balloons) == 0: cursor.setVisible(False) else: cursor.setViewPos(App.Vector(selected_balloons[0].OriginX, selected_balloons[0].OriginY)) cursor.setVisible(True) def setCurrentViewDirection(self, view): from pivy import coin doc = view.Document if doc != Gui.ActiveDocument.Document: raise Exception("Current view is not for the same document as TechDraw view " + view.Name) activeView = Gui.ActiveDocument.ActiveView if str(type(activeView)) not in ["", ""]: raise Exception("Current view is not a 3D view") cam = activeView.getCameraNode() dir = cam.orientation.getValue().multVec(coin.SbVec3f(0,0,1)).getValue() xdir = cam.orientation.getValue().multVec(coin.SbVec3f(1,0,0)).getValue() view.Direction = App.Vector(dir[0], dir[1], dir[2]) view.XDirection = App.Vector(xdir[0], xdir[1], xdir[2]) def refreshView(self, view): doc = view.Document page = self.getViewPage(view) for balloon in page.Views: if balloon.TypeId == 'TechDraw::DrawViewBalloon' and "Assembly_handbook_Source" in balloon.PropertiesList and balloon.SourceView == view: obj = self.getBalloonSourcePart(balloon) balloonColor = (0.0, 0.0, 0.0) if obj is None or not obj in view.XSource: balloonColor = (1.0, 0.0, 0.0) balloon.ViewObject.Color = balloonColor self.view_cache[view] = None def toggleEditViewSourceParts(self, view): workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench button = self.getToolbarButton('AHB_view_edit_source_parts') if self.edited_view is None: workbench.docLinkObserver.select_link_mode = True self.edited_view = view button.setChecked(True) button.setText('End source parts edition') Gui.Selection.clearSelection() for obj in view.XSource: Gui.Selection.addSelection(obj) else: workbench.docLinkObserver.select_link_mode = False Gui.Selection.clearSelection() Gui.Selection.addSelection(self.edited_view) self.edited_view = None button.setChecked(False) button.setText('Edit view source parts') def editViewSourceParts(self, parts, add): if self.edited_view is None: return xsource = self.edited_view.XSource modified = False for part in parts: if (part in xsource) != add: if add: xsource.append(part) else: xsource.remove(part) modified = True if modified: self.edited_view.XSource = xsource def getToolbarButton(self, buttonName): mainwin = Gui.getMainWindow() toolbar = None for tb in mainwin.findChildren(QtGui.QToolBar): if tb.objectName()=='Assembly Handbook': toolbar = tb button = None if toolbar is not None: for action in toolbar.actions(): if action.objectName() == buttonName: button = action return button def onCursorMoved(self, view, new_pos): if len(Gui.Selection.getSelection()) == 0: return balloon = Gui.Selection.getSelection()[0] if balloon.TypeId != 'TechDraw::DrawViewBalloon' or not 'Assembly_handbook_Source' in balloon.PropertiesList: return if balloon.SourceView != view: return balloon.OriginX = new_pos.x balloon.OriginY = new_pos.y obj = self.getBalloonSourcePart(balloon) view = balloon.SourceView center = self.computePartCenter(view, obj, self.getBalloonSourcePartPath(balloon)) balloon.Assembly_handbook_OriginOffsetX = new_pos.x - center.x balloon.Assembly_handbook_OriginOffsetY = new_pos.y - center.y def onBalloonSelected(self, operation, balloon, sub, point): #print(operation, obj.Name, sub, point) if 'Assembly_handbook_Source' in balloon.PropertiesList: #print(operation + " " + balloon.Name) view = balloon.SourceView self.updateBalloonCursor(view) if self.enable_selected_part_highlight: self.repaint(view) def onBalloonChanged(self, obj, prop): # Avoid reentry if self.updating_balloon: return #print('Balloon changed: ' + obj.Name + '.' + prop) if prop == 'Y' and 'Assembly_handbook_Source' in obj.PropertiesList: self.updating_balloon = True self.updateBalloon(obj) self.updating_balloon = False def add_or_update_balloon(self, view, part, parent_path): balloonsCreated = [] page = self.getViewPage(view) overlay_view = self.getOverlayView(view) doc = page.Document path = parent_path if path == '': path = part.Document.Name + '#' + part.Name else: path += '.' path += part.Name # Search an existing balloon to update balloon = None for obj in page.Views: if obj.TypeId == 'TechDraw::DrawViewBalloon' and self.getBalloonSourcePart(obj) == part and self.getBalloonSourcePartPath(obj) == path: if obj.SourceView != overlay_view: continue balloon = obj # Create a new balloon if needed if balloon is None: if self.isNewPartInView(view, part): partName = part.Name balloonName = partName + "_Balloon" balloon = doc.addObject("TechDraw::DrawViewBalloon", balloonName) balloon.SourceView = overlay_view balloon.addProperty("App::PropertyXLink", "Assembly_handbook_Source", "Assembly_handbook") balloon.Assembly_handbook_Source = (part, part.Name) balloon.addProperty("App::PropertyString", "Assembly_handbook_SourcePath", "Assembly_handbook") balloon.Assembly_handbook_SourcePath = path balloon.addProperty("App::PropertyFloat", "Assembly_handbook_OriginOffsetX", "Assembly_handbook") balloon.addProperty("App::PropertyFloat", "Assembly_handbook_OriginOffsetY", "Assembly_handbook") page.addView(balloon) self.updateBalloon(balloon) balloonsCreated.append(balloon) if not self.isNewPartInView(view, part): balloon.ViewObject.Visibility = False else: self.updateBalloon(balloon) def updateBalloon(self, balloon): workbench = Gui.getWorkbench("AssemblyHandbookWorkbench") #: :type workbench: AssemblyHandbookWorkbench view = balloon.SourceView obj = self.getBalloonSourcePart(balloon) path = self.getBalloonSourcePartPath(balloon) partDisplayName = 'Inconnu' if obj is None else self.getPartDisplayName(obj) objectCenterView = workbench.techDrawExtensions.computePartCenter(view, obj, path) balloon.OriginX = objectCenterView.x + balloon.Assembly_handbook_OriginOffsetX balloon.OriginY = objectCenterView.y + balloon.Assembly_handbook_OriginOffsetY balloon.Text = partDisplayName balloon.ViewObject.Font = 'DejaVu Sans' balloon.ViewObject.Fontsize = 4 balloon.BubbleShape = 'Inspection' balloon.EndTypeScale = 1 def getBalloonSourcePart(self, balloon): try: return balloon.Assembly_handbook_Source[0] except: return None def getBalloonSourcePartPath(self, balloon): try: return balloon.Assembly_handbook_SourcePath except: part = self.getBalloonSourcePart(balloon) if part is None: return '' return part.Document.Name + '#' + part.Name def isPartLink(self, obj): if obj is None: return False if obj.TypeId == 'App::Link': return True if obj.TypeId == 'Part::FeaturePython' and hasattr(obj, 'LinkedObject'): # variant link return True return False def getPartDisplayName(self, obj): if self.isPartLink(obj): linked_obj = obj.SourceObject if hasattr(obj, 'SourceObject') else obj.LinkedObject if 'Assembly_handbook_PartDisplayName' in linked_obj.PropertiesList: return linked_obj.Assembly_handbook_PartDisplayName else: return linked_obj.Document.Name return obj.Name def isNewPartInView(self, view, obj): doc = view.Document prev_view = None if 'Assembly_handbook_PreviousStepView' in view.PropertiesList: prev_view = doc.getObject(view.Assembly_handbook_PreviousStepView) if prev_view is None: return True else: if not obj in prev_view.XSource: return True return False def getActivePage(self): activeView = Gui.activeView() if activeView is None: return None activePage = activeView.getPage() if hasattr(activeView, 'getPage') else None return activePage def getViewPage(self, view): for obj in view.InList: if obj.TypeId == 'TechDraw::DrawPage': if view in obj.Views: return obj return None def forceRedrawPage(self, page, callback = None, fast_render = True): for view in page.Views: if view.TypeId == 'TechDraw::DrawViewPart' and 'Assembly_handbook_PreviousStepView' in view.PropertiesList: if not 'Assembly_handbook_RasterView' in view.PropertiesList: view.addProperty("App::PropertyBool", "Assembly_handbook_RasterView", "Assembly_handbook") view.Assembly_handbook_RasterView = True if 'Assembly_handbook_RasterView' in view.PropertiesList and view.Assembly_handbook_RasterView: view.purgeTouched() # make sure we don't trigger rendering of source views (this is awfully slow and doesn't even work for a lot of models) else: view.touch() self.refreshView(view) elif view.TypeId == 'TechDraw::DrawViewBalloon': if view.ViewObject.Visibility: # workaround for a TechDraw bug: sometimes the balloon should be visible but doesn't appear, showing it again fixes the issue view.ViewObject.Visibility = False def makeRedrawCallback(view): def redrawBalloon(): view.ViewObject.Visibility = True return redrawBalloon QTimer.singleShot(0, makeRedrawCallback(view)) else: # workaround for a TechDraw bug: sometimes the balloon text is visible even if the balloon is hidden, hiding it again fixes the issue view.ViewObject.Visibility = True view.ViewObject.Visibility = False if page.KeepUpdated: for view in page.Views: if view.TypeId != 'TechDraw::DrawViewPart': view.recompute() for view in page.Views: if view.TypeId == 'TechDraw::DrawViewPart': view.recompute() self.repaint(view, fast_render) if callback is not None: callback() else: page.KeepUpdated = True def restoreKeepUpdated(): for view in page.Views: if view.TypeId == 'TechDraw::DrawViewPart': if view.Name.endswith('_overlay'): view.touch() view.recompute() for sub_view in page.Views: try: if sub_view.SourceView == view: sub_view.recompute() except: pass else: view.recompute() self.repaint(view, fast_render) page.KeepUpdated = False if callback is not None: callback() QTimer.singleShot(10, restoreKeepUpdated) def refreshOverlays(self, page, callback = None): if page.KeepUpdated: callback() else: page.KeepUpdated = True def restoreKeepUpdated(): for view in page.Views: if view.TypeId == 'TechDraw::DrawViewPart': if view.Name.endswith('_overlay'): view.touch() view.recompute() for sub_view in page.Views: try: if sub_view.SourceView == view: sub_view.recompute() except: pass page.KeepUpdated = False for view in page.Views: if view.TypeId == 'TechDraw::DrawViewBalloon': if view.ViewObject.Visibility: # workaround for a TechDraw bug: sometimes the balloon should be visible but doesn't appear, showing it again fixes the issue view.ViewObject.Visibility = False def makeRedrawCallback(view): def redrawBalloon(): view.ViewObject.Visibility = True return redrawBalloon QTimer.singleShot(0, makeRedrawCallback(view)) else: # workaround for a TechDraw bug: sometimes the balloon text is visible even if the balloon is hidden, hiding it again fixes the issue view.ViewObject.Visibility = True view.ViewObject.Visibility = False if callback is not None: callback() QTimer.singleShot(10, restoreKeepUpdated) def getSourceView(self, view): if view.Name.endswith('_overlay'): view = view.Document.getObject(view.Name[0:-8]) if view is None: raise Exception("Can't find source view of " + view.Name) return view def getOverlayView(self, view): if view.Name.endswith('_overlay'): return view overlay = view.Document.getObject(view.Name + '_overlay') return overlay if overlay is not None else view def computePartCenter(self, view, obj, path = None): view = self.getSourceView(view) mat = App.Matrix() if path is not None: path_parts = path.split('.') path_parts.pop() parent = None for part in path_parts: if parent is None: doc_obj = part.split('#') doc = App.getDocument(doc_obj[0]) link = doc.getObject(doc_obj[1]) else: link = parent.Document.getObject(part) mat = link.LinkPlacement * mat parent = link.LinkedObject if obj.TypeId == 'App::Link': partLink = obj mat = mat.multiply(partLink.LinkPlacement.Matrix) objectCenterWorld = partLink.LinkedObject.Shape.CenterOfGravity elif obj.TypeId == 'Part::FeaturePython' and hasattr(obj, 'LinkedObject'): # variant link partLink = obj mat = mat.multiply(partLink.Placement.Matrix) objectCenterWorld = partLink.LinkedObject.Shape.CenterOfGravity else: objectCenterWorld = obj.Shape.CenterOfGravity objectCenterWorld = mat.multiply(objectCenterWorld) '''view_cache = self.getViewCache(view) key = (objectCenterWorld.x, objectCenterWorld.y, objectCenterWorld.z) projected_point = view_cache.projected_points.get(key, None) if projected_point is None: # TechDraw does not expose a way to project a 3D point to 2D view coordinates ; this is a hack to get this value indirectly. The view should be hidden before calling this method, to avoid costly repaints. vertId = view.makeCosmeticVertex3d(objectCenterWorld) vert = view.getCosmeticVertex(vertId) projected_point = vert.Point view.removeCosmeticVertex(vertId) view_cache.projected_points[key] = projected_point return projected_point''' return self.projectPoint(view, objectCenterWorld) def projectPoint(self, view, point3d): if 'Assembly_handbook_RasterView' in view.PropertiesList and view.Assembly_handbook_RasterView: from ahb_raster_view import RasterView raster_view = RasterView(view) if raster_view.init_image_projection(): return raster_view.project3DPointToSourceView(point3d) # DrawViewPart::projectPoint should be exposed to python in freecad 0.21, but for 0.20 we have to use a workaround view_cache = self.getViewCache(view) if view_cache.projected_origin is None: vertId = view.makeCosmeticVertex3d(App.Vector(0,0,0)) vert = view.getCosmeticVertex(vertId) view_cache.projected_origin = vert.Point view.removeCosmeticVertex(vertId) YDirection = view.Direction.cross(view.XDirection) return App.Vector(view.XDirection.dot(point3d) + view_cache.projected_origin.x, YDirection.dot(point3d) + view_cache.projected_origin.y, 0) def getViewCache(self, view): cache = self.view_cache.get(view, None) if cache is None: cache = ViewCache() self.view_cache[view] = cache return cache