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Author: MahmoudAbdelRahman

GrasshopperSyntax/Grasshopper02.py

@@ -163,14 +163,12 @@ class Curve:
     Adds new curve object
     """
     def __init__(self, *args):
-        if args[0] == '<Curve>' and args[-1] == '</Curve>':
+        if len(args)>1 and args[0] == '<Curve>' and args[-1] == '</Curve>':
             if   args[1] == 'AddArc':       self.repr = ['<Curve>', 'AddArc', args[2], args[3], args[4], args[5]]
             elif args[1] == 'AddArc3Pt':    self.repr = ['<Curve>', 'AddArc3Pt', args[2], args[3], args[4], args[5]]
-            elif args[1] == 'AddArcPtTanPt':self.repr = ['<Curve>', 'AddArc3Pt', args[2], args[3], args[4], args[5]]
-            elif args[1] == 'AddBlendCurve':
-                pass
-            elif args[1] == 'AddCircle':
-                pass
+            elif args[1] == 'AddArcPtTanPt':self.repr = ['<Curve>', 'AddArcPtTanPt', args[2], args[3], args[4], args[5]]
+            elif args[1] == 'AddBlendCurve':self.repr = ['<Curve>','AddBlendCurve', args[2], args[3], args[4],  args[5], args[6]]
+            elif args[1] == 'AddCircle':    self.repr = ['<Curve>', '']
             elif args[1] == 'AddCircle3Pt':
                 pass
             elif args[1] == 'AddCurve':
@@ -240,9 +238,9 @@ def __init__(self, *args):
             elif args[1] == 'TrimCurve':
                 pass
             else:
-                self.text = "Curve of other Type"
+                self.repr = "Curve of other Type"
         else:
-            self.text = "Pring me here" 
+            self.repr = ['<Curve>', 'Ax, By, Cz, D', '</Curve>'] 
 
     def __repr__(self):
         return str(self.repr)

GrasshopperSyntax/curve.py

@@ -47,8 +47,15 @@ def AddArcPtTanPt(start, direction, end):
     Returns:
       id of the new curve object
     """
-
-    return rc
+    if not (isinstance(start, gh.Point)):
+        raise Exception("start should be an instance of a gh.Point")
+    elif not isinstance(end, gh.Point):
+        raise Exception("end should be an instance of a gh.Point")
+    elif not isinstance(direction, gh.Vector):
+        raise Exception("direction should be an instance of a gh.Vector")
+    else:
+        rc = gh.Curve('<Curve>','AddArcPtTanPt', start, direction, end, '</Curve>')
+        return rc
 
 
 def AddBlendCurve(curves, parameters, reverses, continuities):
@@ -62,8 +69,34 @@ def AddBlendCurve(curves, parameters, reverses, continuities):
     Returns:
       identifier of new curve on success
     """
+    if not isinstance(curves, list) \
+                            or len(curves) != 2 \
+                            or not isinstance(curves[0], gh.Curve) \
+                            or not isinstance(curves[1], gh.Curve):
+        raise Exception("curves should be a list of two curves")
+    elif not isinstance(parameters, list) \
+                            or len(parameters)!=2 \
+                            or not isinstance(parameters[0], float) \
+                            or not isinstance(parameters[1], float):
+        raise Exception("parameters should be a list of two floats defining the blend end points ")
+    elif not isinstance(reverses, list) \
+                            or len(reverses)!= 2 \
+                            or not isinstance(reverses[0], bool) \
+                            or not isinstance(reverses[1], bool):
+        raise Exception("reverses should be a list of two boolean values specifying to use the natural or opposite direction of the curve")
+    elif not isinstance(continuities, list) \
+                            or len(continuities)!= 2 \
+                            or not isinstance(continuities[0],int) \
+                            or not isinstance(continuities[1], int)\
+                            or continuities[0]>2 or continuities[1]>2\
+                            or continuities[0]<0 or continuities[1]<0 :
+        raise Exception("continuities should be a list of two numbers specifying continuity at end points 0 = position, 1 = tangency, 2 = curvature")
+    else:
+        rc = gh.Curve('<Curve>','AddBlendCurve', curves, parameters, reverses, continuities, '</Curve>')
+        return rc
 
-    return rc
+cc = AddBlendCurve([gh.Curve(), gh.Curve()],[1.3, 4.5], [True, False], [1, 0])
+print cc
 
 
 def AddCircle(plane_or_center, radius):