1 files changed, 27 insertions, 0 deletions
diff --git a/rotord/graph.cpp b/rotord/graph.cpp
index 7eeeec3..69c4811 100644
--- a/rotord/graph.cpp
+++ b/rotord/graph.cpp
@@ -9,6 +9,33 @@ const string Graph::toString(){
 	}
 	else return "";
 }
+vector<Node*> Graph::find_nodes(const string &type){
+	vector<Node*> found;
+	for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
+		if (it->second->type==type) found.push_back(it->second);
+	}
+	return found;
+};
+Node* Graph::find_node(const string &type){
+	for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
+		if (it->second->type==type) return it->second;
+	}
+	return nullptr; //can be tested against
+};
+bool Graph::signal_render(string &signal_xml,const float framerate) {
+	if (find_node("signal_output")) {
+		Signal_output *signal_output=dynamic_cast<Signal_output*>(find_node("signal_output"));
+		return signal_output->render(duration,framerate,signal_xml);
+	}
+	else return false;
+}
+bool Graph::video_render(const string &output_filename,const string &audio_filename,const float framerate) {
+	if (find_node("video_output")) {
+		Video_output *video_output=dynamic_cast<Video_output*>(find_node("video_output"));
+		return video_output->render(duration,framerate,output_filename,audio_filename);
+	}
+	else return false;
+}
 bool Graph::load(string &filename){
 	loaded=false;
 	printf("loading graph: %s\n",filename.c_str());