From 8ba51a074d733ebde42cd52b1e61aa9b6cff29b1 Mon Sep 17 00:00:00 2001
From: bergwerkgis <wb@bergwerk-gis.at>
Date: Thu, 8 Oct 2015 16:57:49 +0000
Subject: [PATCH] expose mapnik::geometry::is_valid

---
 src/mapnik_geometry.cpp | 18 ++++++++++++++++++
 src/mapnik_geometry.hpp |  2 ++
 2 files changed, 20 insertions(+)

diff --git a/src/mapnik_geometry.cpp b/src/mapnik_geometry.cpp
index 0ef2fa6a84..a05283c84a 100644
--- a/src/mapnik_geometry.cpp
+++ b/src/mapnik_geometry.cpp
@@ -4,6 +4,7 @@
 
 #include <mapnik/datasource.hpp>
 #include <mapnik/geometry_reprojection.hpp>
+#include <mapnik/geometry_is_valid.hpp>
 #include <mapnik/util/geometry_to_geojson.hpp>
 #include <mapnik/util/geometry_to_wkt.hpp>
 #include <mapnik/util/geometry_to_wkb.hpp>
@@ -31,6 +32,7 @@ void Geometry::Initialize(v8::Local<v8::Object> target) {
     lcons->SetClassName(Nan::New("Geometry").ToLocalChecked());
 
     Nan::SetPrototypeMethod(lcons, "extent", extent);
+	Nan::SetPrototypeMethod(lcons, "isValid", isValid);
     Nan::SetPrototypeMethod(lcons, "toWKB", toWKB);
     Nan::SetPrototypeMethod(lcons, "toWKT", toWKT);
     Nan::SetPrototypeMethod(lcons, "toJSON", toJSON);
@@ -309,6 +311,22 @@ NAN_METHOD(Geometry::extent)
     info.GetReturnValue().Set(a);
 }
 
+NAN_METHOD(Geometry::isValid) {
+	info.GetReturnValue().Set(_isValid(info));
+}
+
+v8::Local<v8::Value> Geometry::_isValid(Nan::NAN_METHOD_ARGS_TYPE info) {
+	Nan::EscapableHandleScope scope;
+	Geometry* g = Nan::ObjectWrap::Unwrap<Geometry>(info.Holder());
+	//std::string message;
+	if (mapnik::geometry::is_valid(g->feat_->get_geometry())) {
+		return scope.Escape(Nan::True());
+	}
+	else {
+		return scope.Escape(Nan::False());
+	}
+}
+
 /**
  * Get the geometry's representation as [Well-Known Text](http://en.wikipedia.org/wiki/Well-known_text)
  *
diff --git a/src/mapnik_geometry.hpp b/src/mapnik_geometry.hpp
index 37d18ffb5f..8f2e148c8a 100644
--- a/src/mapnik_geometry.hpp
+++ b/src/mapnik_geometry.hpp
@@ -19,6 +19,8 @@ class Geometry: public Nan::ObjectWrap {
     static NAN_METHOD(New);
     static v8::Local<v8::Value> NewInstance(mapnik::feature_ptr f);
     static NAN_METHOD(extent);
+	static NAN_METHOD(isValid);
+	static v8::Local<v8::Value> _isValid(Nan::NAN_METHOD_ARGS_TYPE info);
     static NAN_METHOD(toWKB);
     static NAN_METHOD(toWKT);
     static v8::Local<v8::Value> _toJSONSync(Nan::NAN_METHOD_ARGS_TYPE info);