Draft: Added 3-point arc command from BIM WB

2019-04-07 17:23:42 -03:00
parent c4d61de818
commit 05b7892109
4 changed files with 359 additions and 1 deletions
--- a/src/Mod/Draft/DraftTools.py
+++ b/src/Mod/Draft/DraftTools.py
@@ -5891,6 +5891,74 @@ class Draft_AddConstruction():
                    obrep.Transparency = 80


+class Draft_Arc_3Points:
+
+
+    def GetResources(self):
+
+        return {'Pixmap'  : "Draft_Arc_3Points.svg",
+                'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_Arc_3Points", "Arc 3 points"),
+                'ToolTip' : QtCore.QT_TRANSLATE_NOOP("Draft_Arc_3Points", "Creates an arc by giving 3 points through which the arc should pass"),
+                'Accel'   : 'A,T'}
+
+    def IsActive(self):
+
+        if FreeCAD.ActiveDocument:
+            return True
+        else:
+            return False
+
+    def Activated(self):
+
+        import DraftTrackers
+        self.points = []
+        self.normal = None
+        self.tracker = DraftTrackers.arcTracker()
+        self.tracker.autoinvert = False
+        if hasattr(FreeCAD,"DraftWorkingPlane"):
+            FreeCAD.DraftWorkingPlane.setup()
+        FreeCADGui.Snapper.getPoint(callback=self.getPoint,movecallback=self.drawArc)
+
+    def getPoint(self,point,info):
+        if not point: # cancelled
+            self.tracker.off()
+            return
+        if not(point in self.points): # avoid same point twice
+            self.points.append(point)
+        if len(self.points) < 3:
+            if len(self.points) == 2:
+                self.tracker.on()
+            FreeCADGui.Snapper.getPoint(last=self.points[-1],callback=self.getPoint,movecallback=self.drawArc)
+        else:
+            import Part
+            e = Part.Arc(self.points[0],self.points[1],self.points[2]).toShape()
+            if Draft.getParam("UsePartPrimitives",False) or True: # TODO Draft "native" object below is buggy, use common shape for now
+                o = FreeCAD.ActiveDocument.addObject("Part::Feature","Arc")
+                o.Shape = e
+            else:
+                radius = e.Curve.Radius
+                rot = FreeCAD.Rotation(e.Curve.XAxis,e.Curve.YAxis,e.Curve.Axis,"ZXY")
+                placement = FreeCAD.Placement(e.Curve.Center,rot)
+                start = e.FirstParameter
+                end = e.LastParameter
+                Draft.makeCircle(radius,placement,startangle=start,endangle=end)
+            self.tracker.off()
+            FreeCAD.ActiveDocument.recompute()
+
+    def drawArc(self,point,info):
+
+        if len(self.points) == 2:
+            import Part
+            if point.sub(self.points[1]).Length > 0.001:
+                e = Part.Arc(self.points[0],self.points[1],point).toShape()
+                self.tracker.normal = e.Curve.Axis.negative() # for some reason the axis always points "backwards"
+                self.tracker.basevector = self.tracker.getDeviation()
+                self.tracker.setCenter(e.Curve.Center)
+                self.tracker.setRadius(e.Curve.Radius)
+                self.tracker.setStartPoint(self.points[0])
+                self.tracker.setEndPoint(point)
+
+
 #---------------------------------------------------------------------------
 # Snap tools
 #---------------------------------------------------------------------------
@@ -6084,6 +6152,7 @@ FreeCADGui.addCommand('Draft_Line',Line())
 FreeCADGui.addCommand('Draft_Wire',Wire())
 FreeCADGui.addCommand('Draft_Circle',Circle())
 FreeCADGui.addCommand('Draft_Arc',Arc())
+FreeCADGui.addCommand('Draft_Arc_3Points',Draft_Arc_3Points())
 FreeCADGui.addCommand('Draft_Text',Text())
 FreeCADGui.addCommand('Draft_Rectangle',Rectangle())
 FreeCADGui.addCommand('Draft_Dimension',Dimension())
--- a/src/Mod/Draft/InitGui.py
+++ b/src/Mod/Draft/InitGui.py
@@ -68,7 +68,7 @@ class DraftWorkbench (Workbench):
            FreeCAD.Console.PrintError("Error: Initializing one or more of the Draft modules failed, Draft will not work as expected.\n")

        # setup menus
-        self.cmdList = ["Draft_Line","Draft_Wire","Draft_Circle","Draft_Arc","Draft_Ellipse",
+        self.cmdList = ["Draft_Line","Draft_Wire","Draft_Circle","Draft_Arc","Draft_Arc_3Points","Draft_Ellipse",
                        "Draft_Polygon","Draft_Rectangle", "Draft_Text",
                        "Draft_Dimension", "Draft_BSpline","Draft_Point",
                        "Draft_ShapeString","Draft_Facebinder","Draft_BezCurve","Draft_Label"]
--- a/src/Mod/Draft/Resources/Draft.qrc
+++ b/src/Mod/Draft/Resources/Draft.qrc
@@ -4,6 +4,7 @@
        <file>icons/Draft_AddToGroup.svg</file>
        <file>icons/Draft_Apply.svg</file>
        <file>icons/Draft_Arc.svg</file>
+        <file>icons/Draft_Arc_3Points.svg</file>
        <file>icons/Draft_BSpline.svg</file>
        <file>icons/Draft_BezCurve.svg</file>
        <file>icons/Draft_BezSharpNode.svg</file>
--- a/src/Mod/Draft/Resources/icons/Draft_Arc_3Points.svg
+++ b/src/Mod/Draft/Resources/icons/Draft_Arc_3Points.svg
@@ -0,0 +1,288 @@
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+        <dc:title></dc:title>
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+        <dc:date>Mon Oct 10 13:44:52 2011 +0000</dc:date>
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+            <rdf:li>curve</rdf:li>
+            <rdf:li>line</rdf:li>
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