diff --git a/src/ofxSurfaceGui.cpp b/src/ofxSurfaceGui.cpp
index 2279e7d..0aca9a3 100644
--- a/src/ofxSurfaceGui.cpp
+++ b/src/ofxSurfaceGui.cpp
@@ -3,6 +3,7 @@
 ofxSurfaceGui::ofxSurfaceGui()
 {
     surface = NULL;
+    mode = PROJECTION_MAPPING;
 }
 
 ofxSurfaceGui::~ofxSurfaceGui()
@@ -13,62 +14,99 @@ ofxSurfaceGui::~ofxSurfaceGui()
 void ofxSurfaceGui::setup(ofxTriangleSurface& surfaceForGui)
 {
     surface = &surfaceForGui;
-    addNumJoints(3);
+    addNumProjectionMappingJoints(3);
+    addNumTextureMappingJoints(3);
 }
 
 void ofxSurfaceGui::update()
 {
     if (surface == NULL) return;
+    if (mode == NONE) return;
     
-    for ( int i=0; i<joints.size(); i++ ) {
-        joints[i].update();
+    for ( int i=0; i<projectionMappingJoints.size(); i++ ) {
+        projectionMappingJoints[i].update();
     }
 }
 
 void ofxSurfaceGui::draw()
 {
     if (surface == NULL) return;
-    for ( int i=0; i<joints.size(); i++ ) {
-        joints[i].draw();
+    if (mode == NONE) return;
+    
+    for ( int i=0; i<projectionMappingJoints.size(); i++ ) {
+        projectionMappingJoints[i].draw();
     }
 }
 
 void ofxSurfaceGui::mousePressed(int x, int y, int button)
 {
     if (surface == NULL) return;
-    for ( int i=0; i<joints.size(); i++ ) {
-        joints[i].mousePressed(x, y, button);
+    if (mode == NONE) return;
+    
+    for ( int i=0; i<projectionMappingJoints.size(); i++ ) {
+        projectionMappingJoints[i].mousePressed(x, y, button);
     }
 }
 
 void ofxSurfaceGui::mouseReleased(int x, int y, int button)
 {
     if (surface == NULL) return;
-    for ( int i=0; i<joints.size(); i++ ) {
-        joints[i].mouseReleased(x, y, button);
+    if (mode == NONE) return;
+    
+    for ( int i=0; i<projectionMappingJoints.size(); i++ ) {
+        projectionMappingJoints[i].mouseReleased(x, y, button);
     }
 }
 
 void ofxSurfaceGui::mouseDragged(int x, int y, int button)
 {
     if (surface == NULL) return;
-    for ( int i=0; i<joints.size(); i++ ) {
-        joints[i].mouseDragged(x, y, button);
-        if ( joints[i].isDragged() ) {
-            surface->setVertex(i, joints[i].position);
+    if (mode == NONE) return;
+    
+    for ( int i=0; i<projectionMappingJoints.size(); i++ ) {
+        projectionMappingJoints[i].mouseDragged(x, y, button);
+        if ( projectionMappingJoints[i].isDragged() ) {
+            surface->setVertex(i, projectionMappingJoints[i].position);
         }
     }
 }
 
-void ofxSurfaceGui::addJoint()
+void ofxSurfaceGui::setMode(ofxSurfaceGui::editMode newMode)
+{
+    if (mode != NONE ||
+        mode != PROJECTION_MAPPING ||
+        mode != TEXTURE_MAPPING) {
+        throw std::runtime_error("Trying to set invalid mode.");
+    };
+}
+
+ofxSurfaceGui::editMode ofxSurfaceGui::getMode()
+{
+    return mode;
+}
+
+void ofxSurfaceGui::addProjectionMappingJoint()
+{
+    projectionMappingJoints.push_back(ofxCircleJoint());
+    projectionMappingJoints.back().position = surface->getVertex(projectionMappingJoints.size()-1);
+}
+
+void ofxSurfaceGui::addNumProjectionMappingJoints(int num)
+{
+    for ( int i=0; i<num; i++ ) {
+        addProjectionMappingJoint();
+    }
+}
+
+void ofxSurfaceGui::addTextureMappingJoint()
 {
-    joints.push_back(ofxCircleJoint());
+    textureMappingJoings.push_back(ofxCircleJoint());
+    //textureMappingJoings.back().position = surface->getTex
 }
 
-void ofxSurfaceGui::addNumJoints(int num)
+void ofxSurfaceGui::addNumTextureMappingJoints(int num)
 {
     for ( int i=0; i<num; i++ ) {
-        addJoint();
-        joints[i].position = surface->getVertex(i);
+        addTextureMappingJoint();
     }
 }
\ No newline at end of file
diff --git a/src/ofxSurfaceGui.h b/src/ofxSurfaceGui.h
index 27c9d12..aaf1f12 100644
--- a/src/ofxSurfaceGui.h
+++ b/src/ofxSurfaceGui.h
@@ -11,19 +11,33 @@ public:
     ofxSurfaceGui();
     ~ofxSurfaceGui();
     
+    enum editMode {
+        NONE,
+        TEXTURE_MAPPING,
+        PROJECTION_MAPPING
+    };
+    
     void setup(ofxTriangleSurface& surfaceForGui);
     void update();
     void draw();
     void mousePressed(int x, int y, int button);
     void mouseReleased(int x, int y, int button);
     void mouseDragged(int x, int y, int button);
+    void setMode(editMode newMode);
+    
+    editMode getMode();
     
 private:
+    editMode mode;
     ofxTriangleSurface* surface;
-    vector<ofxCircleJoint> joints;
     
-    void addJoint();
-    void addNumJoints(int num);
+    vector<ofxCircleJoint> projectionMappingJoints;
+    vector<ofxCircleJoint> textureMappingJoings;
+    
+    void addProjectionMappingJoint();
+    void addNumProjectionMappingJoints(int num);
+    void addTextureMappingJoint();
+    void addNumTextureMappingJoints(int num);
 };
 
 #endif
\ No newline at end of file