Catch unparsable point coordinates

Author: kenohori

azul.xcodeproj/project.pbxproj

@@ -463,6 +463,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "src/Azul-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				SWIFT_VERSION = 3.0;
 			};
 			name = Release;

src/CityGMLParser.cpp

@@ -45,6 +45,8 @@ void CityGMLParser::parse(const char *filePath) {
   pugi::xml_document doc;
   doc.load_file(filePath);
 
+  std::cout << "Loaded XML file" << std::endl;
+  
   // With single traversal
   ObjectsWalker objectsWalker;
   doc.traverse(objectsWalker);

src/CityGMLParser.hpp

@@ -75,13 +75,18 @@ struct PointsWalker: pugi::xml_tree_walker {
         iss >> substring;
         if (substring.length() > 0) {
           if (currentCoordinate == 0) points.push_back(CityGMLPoint());
-          points.back().coordinates[currentCoordinate] = std::stof(substring);
-          currentCoordinate = (currentCoordinate+1)%3;
+          try {
+            points.back().coordinates[currentCoordinate] = std::stof(substring);
+          } catch (const std::invalid_argument& ia) {
+            std::cout << "Invalid point: " << substring << ". Skipping..." << std::endl;
+            points.clear();
+            return true;
+          } currentCoordinate = (currentCoordinate+1)%3;
         }
       } while (iss);
       if (currentCoordinate != 0) {
         std::cout << "Wrong number of coordinates: not divisible by 3" << std::endl;
-        points.pop_back();
+        points.clear();
       } //std::cout << "Created " << points.size() << " points" << std::endl;
     } return true;
   }