- More projection and extrusion in place

main.py

@@ -295,7 +295,20 @@ class MainWindow(QMainWindow):
 
         #Create and draw Interactor
         geo = Geometry()
-        f = geo.extrude_shape(points, length)
+
+        # Get the nromal form the 3d widget for extrusion
+        if self.custom_3D_Widget.selected_normal is not None:
+            normal = self.custom_3D_Widget.selected_normal.tolist()
+            print("normal", normal)
+            angle = geo.angle_between_normals([0, 1, 0], normal)
+            print("Angle", angle)
+            f = geo.extrude_shape(points, length, angle, normal)
+            f = geo.mirror_body(f)
+
+        else:
+            normal = [0,0,-1]
+            angle = 0
+            f = geo.extrude_shape(points, length, angle, normal)
 
         name_op = f"extrd-{name}"
         element = {
@@ -316,7 +329,6 @@ class MainWindow(QMainWindow):
         name = self.ui.body_list.currentItem().text()
         points = self.model['operation'][name]['sdf_object']
         self.list_selected.append(points)
-        #print(self.list_selected)
 
         if len(self.list_selected) > 1:
             geo = Geometry()
@@ -332,8 +344,8 @@ class MainWindow(QMainWindow):
             self.model['operation'][name_op] = element
             self.ui.body_list.addItem(name_op)
             items = self.ui.sketch_list.findItems(name_op, Qt.MatchExactly)
-            self.ui.body_list.setCurrentItem(items[-1])
-            #self.draw_mesh()
+            #self.ui.body_list.setCurrentItem(items[-1])
+            self.draw_mesh()
         else:
             print("mindestens 2!")
 
@@ -342,17 +354,46 @@ class MainWindow(QMainWindow):
         self.custom_3D_Widget.update()
 
 class Geometry:
+
+    def angle_between_normals(self, normal1, normal2):
+        # Ensure the vectors are normalized
+        n1 = normal1 / np.linalg.norm(normal1)
+        n2 = normal2 / np.linalg.norm(normal2)
+
+        # Compute the dot product
+        dot_product = np.dot(n1, n2)
+
+        # Clip the dot product to the valid range [-1, 1]
+        dot_product = np.clip(dot_product, -1.0, 1.0)
+
+        # Compute the angle in radians
+        angle_rad = np.arccos(dot_product)
+
+        # Convert to degrees if needed
+        angle_deg = np.degrees(angle_rad)
+        print("Angle deg", angle_deg)
+
+        return angle_rad
+
     def distance(self, p1, p2):
         """Calculate the distance between two points."""
         print("p1", p1)
         print("p2", p2)
         return math.sqrt((p1[0] - p2[0]) ** 2 + (p1[1] - p2[1]) ** 2)
 
-    def extrude_shape(self, points, length: float):
+    def extrude_shape(self, points, length: float, angle, normal):
         """2D to 3D sdf always first"""
-        f = polygon(points).extrude(length)
+        f = polygon(points).rotate(angle)
+        f = f.extrude(length).orient(normal) # orient(normal)
+
         return f
 
+    def mirror_body(self, sdf_object3d):
+        f = sdf_object3d.rotate(pi)
+
+        return f
+
+
     def cut_shapes(self, sdf_object1, sdf_object2):
         f = difference(sdf_object1, sdf_object2) # equivalent
         return f