From 51bbc61dda3ea4349d40b480c827693ba52c83d6 Mon Sep 17 00:00:00 2001
From: Jan Kleinert <jan.kleinert@dlr.de>
Date: Tue, 26 May 2020 10:41:49 +0200
Subject: [PATCH] dont try to convert nonexistent guide curves, fixes #18

---
 cpacs2to3/convert_coordinates.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cpacs2to3/convert_coordinates.py b/cpacs2to3/convert_coordinates.py
index 1bd31d1..2f1a26d 100644
--- a/cpacs2to3/convert_coordinates.py
+++ b/cpacs2to3/convert_coordinates.py
@@ -195,6 +195,8 @@ def find_guide_curve_using_profile(tixi2, profileUid):
             nSegments = tixi2.getNumberOfChilds(xpathSegments)
             for segmentIdx in range(0, nSegments):
                 xpathGuideCurves = xpathSegments + '/segment[{}]/guideCurves'.format(segmentIdx + 1)
+                if not tixi2.checkElement(xpathGuideCurves):
+                    continue
                 nCurves = tixi2.getNumberOfChilds(xpathGuideCurves)
                 for curveIdx in range(0, nCurves):
                     xpathGuideCurve = xpathGuideCurves + '/guideCurve[{}]'.format(curveIdx + 1)