Test create `GridMeshSurface` on `g` keypress

src/Application/ProjectionMappingState.cpp

@@ -34,8 +34,19 @@ void ProjectionMappingState::onKeyPressed(Application * app, ofKeyEventArgs & ar
 				 SurfaceType::QUAD_SURFACE)
 			 );
 		 break;
+		 
+	 case 'g':
+		 app->getCmdManager()->exec(
+			 new AddSurfaceCmd(
+				 app->getSurfaceManager(),
+				 SurfaceType::GRID_WARP_SURFACE)
+			 );
+		break;
 
 	 case OF_KEY_BACKSPACE:
+		 if(app->getSurfaceManager()->getSelectedSurface() == 0){
+			break;
+		 }
 		 app->getCmdManager()->exec(
 			 new RmSurfaceCmd(app->getSurfaceManager()));
 		 break;

src/Surfaces/GridWarpSurface.cpp

@@ -21,14 +21,20 @@ void GridWarpSurface::draw(){
 	source->getTexture()->bind();
 	mesh.draw();
 	source->getTexture()->unbind();
+	
+	// debug vertices
+	mesh.drawWireframe();
+	//mesh.drawVertices();
 }
 
 void GridWarpSurface::moveBy(ofVec2f v){
+	/*
 	vector <ofVec3f> & vertices = getVertices();
 	for(int i = 0; i < vertices.size(); i++){
 		vertices[i] += v;
 	}
 	setMoved(true);
+	*/
 }
 
 int GridWarpSurface::getType(){
@@ -36,6 +42,8 @@ int GridWarpSurface::getType(){
 }
 
 bool GridWarpSurface::hitTest(ofVec2f p){
+	return false;
+	/*
 	ofPolyline line = getHitArea();
 
 	if(line.inside(p.x, p.y)){
@@ -43,9 +51,13 @@ bool GridWarpSurface::hitTest(ofVec2f p){
 	}else{
 		return false;
 	}
+	*/
 }
 
 ofPolyline GridWarpSurface::getHitArea(){
+	ofPolyline line;
+	return line;
+	/*
 	ofPolyline line;
 	line.addVertex(ofPoint(mesh.getVertex(0).x, mesh.getVertex(0).y));
 	line.addVertex(ofPoint(mesh.getVertex(1).x, mesh.getVertex(1).y));
@@ -54,6 +66,7 @@ ofPolyline GridWarpSurface::getHitArea(){
 	line.close();
 
 	return line;
+	*/
 }
 
 ofPolyline GridWarpSurface::getTextureHitArea(){
@@ -68,11 +81,29 @@ ofPolyline GridWarpSurface::getTextureHitArea(){
 	return line;
 }
 
-void GridWarpSurface::createGridMesh(){
-	// Assign texture
-	source = getDefaultSource();
+void GridWarpSurface::setVertex(int index, ofVec2f p){
+	if(index >= mesh.getVertices().size()){
+		ofLog() << "Vertex with this index does not exist: " << index << endl;
+		return;
+	}
+	mesh.setVertex(index, p);
+}
 
-	// Clear mesh
+void GridWarpSurface::setVertices(vector<ofVec2f> v){
+	if(v.size() != mesh.getVertices().size()){
+		throw runtime_error("Wrong number of vertices");
+	}
+	
+	for(int i = 0; i < v.size(); ++i){
+		mesh.setVertex(i, v[i]);
+	}
+}
+
+vector <ofVec3f> & GridWarpSurface::getVertices(){
+	return mesh.getVertices();
+}
+
+void GridWarpSurface::createGridMesh(){
 	mesh.clear();
 	
 	float margin = 100.0f;
@@ -82,37 +113,33 @@ void GridWarpSurface::createGridMesh(){
 	float vertexDistanceY = surfaceHeight / (float)_gridRows;
 	
 	// Add vertices for each col and row
-	for(int ix = 0; ix <= _gridCols; ++ix){
-		for(int iy = 0; iy <= _gridRows; ++iy){
+	for(int iy = 0; iy <= _gridRows; ++iy){
+		for(int ix = 0; ix <= _gridCols; ++ix){
 			mesh.addVertex(
 				ofVec2f(
-					margin + vertexDistanceX * (float)ix,
-					margin + vertexDistanceY * (float)iy));
+					margin + (vertexDistanceX * (float)ix),
+					margin + (vertexDistanceY * (float)iy) ));
 		}
 	}
 	
-	int vertsPerCol = _gridCols + 1;
-	int vertsPerRow = _gridRows + 1;
+	int vertsPerCol = _gridRows + 1;
+	int vertsPerRow = _gridCols + 1;
 	
 	// Form triangles for all grid cols and rows
-	for(int ix = 0; ix < _gridCols; ++ix){
-		for(int iy = 0; iy < _gridRows; ++iy){
-			
-			mesh.addTriangle(
-				(iy * vertsPerRow) + ix,
-				((iy + 1) * vertsPerRow) + ix,
-				((iy + 1) * vertsPerRow) + (ix + 1));
-		
-			mesh.addTriangle(
-				(iy * vertsPerRow) + ix,
-				(iy * vertsPerRow) + (ix + 1),
-				((iy + 1) * vertsPerRow) + ix);
+	for(int iy = 0; iy < _gridRows; ++iy){
+		for(int ix = 0; ix < _gridCols; ++ix){
+			int a = (iy * vertsPerRow) + ix;
+			int b = (iy * vertsPerRow) + ix + 1;
+			int c = ((iy + 1) * vertsPerRow) + ix + 1;
+			int d = ((iy + 1) * vertsPerRow) + ix;
+			mesh.addTriangle(a, b, c);
+			mesh.addTriangle(a, c, d);
 		}
 	}
 	
 	// Add texture coordinates for each of the vertices
-	for(int ix = 0; ix <= _gridCols; ++ix){
-		for(int iy = 0; iy <= _gridRows; ++iy){
+	for(int iy = 0; iy <= _gridRows; ++iy){
+		for(int ix = 0; ix <= _gridCols; ++ix){
 			float xc = (ix == 0) ? 0.0f : (float)ix / (float)_gridCols;
 			float yc = (iy == 0) ? 0.0f : (float)iy / (float)_gridRows;
 			mesh.addTexCoord(ofVec2f(xc, yc));

src/Surfaces/GridWarpSurface.h

@@ -22,6 +22,11 @@ class GridWarpSurface : public BaseSurface {
 		ofPolyline getHitArea();
 		ofPolyline getTextureHitArea();
 
+		void setVertex(int index, ofVec2f p);
+		void setVertices(vector<ofVec2f> v);
+		vector <ofVec3f> & getVertices();
+
+
 	private:
 		int _gridCols;
 		int _gridRows;