Add files via upload

Author: Samuelson777

downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/cad/primary_structure/v0_3/nxopen/asterion_v0_3_reference_curves.py

@@ -0,0 +1,36 @@
+"""NXOpen Python journal starter for ASTERION v0.3 reference curves.
+
+Run inside Siemens NX after creating or opening AST-1100-SPINE-TRUSS.prt.
+The journal creates centreline curves only; inspect and adapt to the installed
+NX release before saving production data.
+"""
+import math
+import NXOpen
+
+session = NXOpen.Session.GetSession()
+work = session.Parts.Work
+if work is None:
+    raise RuntimeError("Open a work part before running this journal.")
+
+truss_r = 1200.0
+x_stations = [-21000,-18500,-16000,-13500,-11000,-8500,-6000,-3500,-2500,-1000,1500,2500,4000,6500,9000,11500,14000,15000,16500,19000,21000]
+count = 8
+
+# Create station polygons and longeron segments as associative-independent
+# reference curves. Convert them into Tube features manually after audit.
+points = {}
+for i, x in enumerate(x_stations):
+    for j in range(count):
+        a = 2.0 * math.pi * j / count
+        points[(i,j)] = NXOpen.Point3d(x, truss_r*math.cos(a), truss_r*math.sin(a))
+    for j in range(count):
+        work.Curves.CreateLine(points[(i,j)], points[(i,(j+1)%count)])
+
+for i in range(len(x_stations)-1):
+    step = 1 if i % 2 == 0 else -1
+    for j in range(count):
+        work.Curves.CreateLine(points[(i,j)], points[(i+1,j)])
+        work.Curves.CreateLine(points[(i,j)], points[(i+1,(j+step)%count)])
+
+session.ListingWindow.Open()
+session.ListingWindow.WriteLine("ASTERION v0.3 spine reference curves created. Audit geometry before saving.")