Added PNG module and tutorial 607

Former-commit-id: c0e04685e2

python/scripts/generate_bindings.py

@@ -63,6 +63,9 @@ def map_parameter_types(name, cpp_type, parsed_types, errors, enum_types):
     if cpp_type.startswith("MatY"):
         result.append("Eigen::SparseMatrix<double>&")
         skip_parsing = True
+    if cpp_type.startswith("Eigen::Matrix<unsigned char, Eigen::Dynamic, Eigen::Dynamic>"):
+        result.append("Eigen::Matrix<unsigned char, Eigen::Dynamic, Eigen::Dynamic>")
+        skip_parsing = True
     if cpp_type == "std::vector<std::vector<Scalar> > &":
         result.append("std::vector<std::vector<double> > &")
         skip_parsing = True
@@ -298,4 +301,4 @@ if __name__ == '__main__':
         for k in l:
             fs.write("%s: %i \n" %(k, len(files[k])))
             fs.writelines("\n".join(files[k]))
-            fs.write("\n\n\n")
+            fs.write("\n\n\n")

python/scripts/python_shared.mako

@@ -30,6 +30,10 @@ extern void python_export_igl_triangle(py::module &);
 extern void python_export_igl_cgal(py::module &);
 #endif
 
+#ifdef PY_PNG
+extern void python_export_igl_png(py::module &);
+#endif
+
 PYBIND11_PLUGIN(pyigl) {
     py::module m("pyigl", R"pyigldoc(
         Python wrappers for libigl
@@ -74,5 +78,9 @@ PYBIND11_PLUGIN(pyigl) {
     python_export_igl_cgal(m);
     #endif
 
+    #ifdef PY_PNG
+    python_export_igl_png(m);
+    #endif
+
     return m.ptr();
 }