id_line_1 = geompy.addToStudy(line_1, "Line 1")
id_line_2 = geompy.addToStudy(line_2, "Line 2")
id_p_on_arc = geompy.addToStudy(p_on_arc, "Vertex on Arc by parameter")
-id_p_on_arc2 = geompy.addToStudy(p_on_arc, "Vertex on Arc by length")
-id_p_on_arc3 = geompy.addToStudy(p_on_arc, "Vertex on Arc by point projection")
+id_p_on_arc2 = geompy.addToStudy(p_on_arc2, "Vertex on Arc by length")
+id_p_on_arc3 = geompy.addToStudy(p_on_arc3, "Vertex on Arc by point projection")
id_p_inter = geompy.addToStudy(p_inter, "Vertex on Lines Intersection")
id_p_on_face1 = geompy.addToStudy(p_on_face1, "Vertex on face by parameter")
id_p_on_face2 = geompy.addToStudy(p_on_face2, "Vertex on face by point projection")