Fix errors in obs_lsst tests

lsst · May 5, 2023 · f2bb445 · f2bb445
1 parent 8cd116c
commit f2bb445
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/geom/detail/frameSetUtils.cc b/src/geom/detail/frameSetUtils.cc
@@ -132,6 +132,16 @@ std::shared_ptr<ast::FrameSet> readFitsWcs(daf::base::PropertySet& metadata, boo
 }
 
 void stripWcsMetadata(daf::base::PropertySet &metadata) {
+    std::vector<double> crpixGrid(2);
+    try {
+        crpixGrid[0] = metadata.getAsDouble("CRPIX1");
+        crpixGrid[1] = metadata.getAsDouble("CRPIX2");
+    } catch (lsst::pex::exceptions::NotFoundError& e) {
+        // std::string used because e.what() returns a C string and two C strings cannot be added
+        throw LSST_EXCEPT(lsst::pex::exceptions::TypeError,
+                          e.what() + std::string("; cannot read metadata as a SkyWcs"));
+    }
+
     // Exclude WCS A keywords because LSST uses them to store XY0
     auto wcsANames = createTrivialWcsMetadata("A", lsst::geom::Point2I(0, 0))->names();
     std::set<std::string> excludeNames(wcsANames.begin(), wcsANames.end());