Merge pull request #11 from GenerateNU/features/iges-conversion

Features/iges conversion

backend/CMakeLists.txt

@@ -7,4 +7,7 @@ find_package(OpenCASCADE REQUIRED)
 include_directories(${OCE_INCLUDE_DIRS})
 
 add_executable(cad_to_gcode src/cad_to_gcode.cpp)
-target_link_libraries(cad_to_gcode ${OpenCASCADE_LIBRARIES})
+add_executable(iges_to_topo src/iges_to_topo.cpp)
+target_link_libraries(cad_to_gcode ${OpenCASCADE_LIBRARIES})
+target_link_libraries(iges_to_topo ${OpenCASCADE_LIBRARIES})
+

backend/src/iges_to_topo.cpp

@@ -0,0 +1,46 @@
+#include <iostream>
+#include <IGESControl_Reader.hxx>
+#include <TopoDS_Shape.hxx>
+
+// takes in an IGES file and returns a TopoDS_Shape
+TopoDS_Shape read_iges(const char* filename)
+{
+    IGESControl_Reader reader;
+    if (reader.ReadFile(filename) != IFSelect_RetDone) {
+        std::cout << "Error: cannot read file" << std::endl;
+        throw std::runtime_error("Error: Unable to read the IGES file.");
+    }
+
+    if (!reader.TransferRoots()) {
+        std::cerr << "Error: Unable to transfer the content to TopoDS_Shape." << std::endl;
+        throw std::runtime_error("Error: Unable to transfer the content to TopoDS_Shape.");
+    }
+    TopoDS_Shape shape = reader.OneShape();
+    return shape;
+}
+
+// to see if it works
+int main(int argc, char* argv[]) {
+    if (argc != 2) {
+        std::cerr << "Usage: " << argv[0] << " <IGES file>" << std::endl;
+        return 1; // Return a non-zero value to indicate an error
+    }
+
+    const char* igesFileName = argv[1];
+    std::cout <<igesFileName;
+
+    try {
+        // Call the function to read IGES file and get TopoDS_Shape
+        TopoDS_Shape shape = read_iges(igesFileName);
+        if (!shape.IsNull()) {
+            std::cout << "Shape is not null." << std::endl;
+        } else {
+            std::cout << "Shape is null." << std::endl;
+        }
+    } catch (const std::exception& e) {
+        std::cerr << e.what() << std::endl;
+        return 1; // Return 1 for error
+    }
+
+    return 0; // Return 0 for success
+}