diff --git a/version_final.pde b/version_final.pde
index 07f120f..d061c7d 100644
--- a/version_final.pde
+++ b/version_final.pde
@@ -38,10 +38,22 @@ float vScaler = 0.00;
 float vRotateX = 1.18;
 float vRotateY = 0.00;
 float vRotateZ = 1.25;
+//float vRotateX = 0;
+//float vRotateY = phi;
+//float zRotateZ = the;
 int rColor = 128;
 int bColor = 128;
 int gColor = 128;
 
+// define variables for functionBox
+int functionBoxResult = -1;
+float zVariable = 0.0;
+float xVariable = 0.0;
+float yVariable = 0.0;
+Textarea xv;
+Textarea yv;
+Textarea zv;
+
 void setup() {
   size(1000, 681, P3D);
   noStroke();
@@ -68,45 +80,56 @@ void draw() {
   popMatrix();
   hint(DISABLE_DEPTH_TEST);
   
-  //Drawing the coordinate system and points by the 3D point sets
-  pushMatrix();
-  camera(mouseX, mouseY, (height/2) / tan(PI/5), width/2, height/2, 0, 0, 1, 0);
-  moveCoords();
-  scalerCoords();
-  smooth();
-  stroke(255);
-  rotateCoords();
-  noFill();
-    
-  for (int i=0; i<500; i += 20){
-    stroke(96);
-    line(i, 0, 0, i, 0, 500);
-    line(0, i, 0, 0, i, 500);
-    line(0, 0, i, 0, 500, i);
-    line(i, 0, 0, i, 500, 0);
-    line(0, 0, i, 500, 0, i);
-    line(0, i, 0, 500, i, 0);
-  }
+  if (functionBoxResult == -1){
+    //Drawing the coordinate system and points by the 3D point sets
+    pushMatrix();
+    //camera(mouseX, mouseY, (height/2) / tan(PI/5), width/2, height/2, 0, 0, 1, 0);
+    controlCamera();
+    moveCoords();
+    scalerCoords();
+    smooth();
+    stroke(255);
+    rotateCoords();
+    noFill();
       
-  strokeWeight(1);
-  //z-coordinate: red
-  stroke(255, 0, 0);
-  line(0, 0, -500, 0, 0, 500);  
-  arrow(0, 0, 500);
-  //y-coordinate: green
-  stroke(0, 102, 0);
-  line(0, -500, 0, 0, 500, 0);
-  arrow(0, 500, 0);
-  //x-coordinate: blue
-  stroke(0, 76, 153);
-  line(-500, 0, 0, 500, 0, 0);
-  arrow(500, 0, 0);
-    
-  for (int i=0; i<xValue.size(); i++)
-  {  
-    pointSets(xValue.get(i), yValue.get(i), zValue.get(i));  
+    for (int i=0; i<500; i += 20){
+      stroke(96);
+      line(i, 0, 0, i, 0, 500);
+      line(0, i, 0, 0, i, 500);
+      line(0, 0, i, 0, 500, i);
+      line(i, 0, 0, i, 500, 0);
+      line(0, 0, i, 500, 0, i);
+      line(0, i, 0, 500, i, 0);
+    }
+        
+    strokeWeight(1);
+    //z-coordinate: red
+    stroke(255, 0, 0);
+    line(0, 0, -500, 0, 0, 500);  
+    arrow(0, 0, 500);
+    //y-coordinate: green
+    stroke(0, 102, 0);
+    line(0, -500, 0, 0, 500, 0);
+    arrow(0, 500, 0);
+    //x-coordinate: blue
+    stroke(0, 76, 153);
+    line(-500, 0, 0, 500, 0, 0);
+    arrow(500, 0, 0);
+      
+    for (int i=0; i<xValue.size(); i++)
+    {  
+      pointSets(xValue.get(i), yValue.get(i), zValue.get(i));  
+    }
+    popMatrix();
   }
-  popMatrix();
+  //pressedEnter();
+
+  
+  //getPressedPoints( mouseX-width/2, mouseY-width/2, map (mouseY-width/2, -height/2, height/2, -height/2, height/2),
+  //mouseX, mouseY, map (mouseY,  -height/2, height/2, -height/2, height/2), color (2, 0, 255));
+  getPressedPoints( width/2, height/2, 0,
+  mouseX, mouseY, map (mouseY,  -height/2, height/2, -height/2, height/2), color (2, 0, 255));
+  //popMatrix();
 }
 
 void createBox() {
@@ -272,6 +295,56 @@ void createBox() {
   functionBox.setBackgroundColor(color(0,100));
   functionBox.setBarHeight(14);
   
+  Button b3 = gui.addButton("controlFixed", 0, 65, 20, 80, 24);
+  b3.moveTo(functionBox);
+  b3.setColorBackground(color(40));
+  b3.setColorActive(color(20));
+  b3.setColorActive(color(20));
+  b3.setBroadcast(false);
+  b3.setValue(0);
+  b3.setBroadcast(true);
+  b3.setCaptionLabel("FixedCoords");  
+   
+  Button b4 = gui.addButton("controlFree", 0, 155, 20, 80, 24);
+  b4.moveTo(functionBox);
+  b4.setColorBackground(color(40));
+  b4.setColorActive(color(20));
+  b4.setColorActive(color(20));
+  b4.setBroadcast(false);
+  b4.setValue(-1);
+  b4.setBroadcast(true);
+  b4.setCaptionLabel("FreeCoords");    
+  
+  xv = gui.addTextarea("outputX");
+  xv.setPosition(20, 60);
+  xv.setSize(200, 20);
+  xv.moveTo(functionBox);
+  xv.setFont(createFont("arial",12));
+  xv.setLineHeight(14);
+  xv.setColor(color(128));
+  xv.setColorBackground(color(255, 100));
+  xv.setColorForeground(color(255, 100));
+  
+  yv = gui.addTextarea("outputY");
+  yv.setPosition(20, 100);
+  yv.setSize(200, 20);
+  yv.moveTo(functionBox);
+  yv.setFont(createFont("arial",12));
+  yv.setLineHeight(14);
+  yv.setColor(color(128));
+  yv.setColorBackground(color(255, 100));
+  yv.setColorForeground(color(255, 100));
+  
+  zv = gui.addTextarea("outputZ");
+  zv.setPosition(20, 140);
+  zv.setSize(200, 20);
+  zv.moveTo(functionBox);
+  zv.setFont(createFont("arial",12));
+  zv.setLineHeight(14);
+  zv.setColor(color(128));
+  zv.setColorBackground(color(255, 100));
+  zv.setColorForeground(color(255, 100));
+  
   // create a new accordion
   // add g1, g2, and g3 to the accordion.
   accordion = gui.addAccordion("acc")
@@ -409,6 +482,9 @@ void rotateCoords() {
     rotateX(x);
     rotateY(y);
     rotateZ(z);
+    //rotateX(0);
+    //rotateY(phi);
+    //rotateZ(the);
 }
 
 void controlBox(int theValue) {
@@ -448,23 +524,119 @@ void controlBackgroundColor() {
   gColor = int(g);
   
   background(rColor, bColor, gColor);
-} 
-/*
-void controlShape(FloatList x, FloatList y, FloatList z) {
-  beginShape();
-    for(int i = 0; i<=x.size(); i++)
-      for(int j = 0; j<=y.size(); j++)
-        for(int k = 0; k<=z.size(); k++)
-          
-  endShape();
 }
-*/
 
 void pressedEnter() {
   if(mousePressed==true)
   {
-    xValue.append(mouseX);
-    yValue.append(mouseY);
-    //zValue.append();
+    xVariable = mouseX;
+    yVariable = mouseY;
+    pointSets(xVariable, yVariable, zVariable);
+    xValue.append(xVariable);
+    yValue.append(yVariable);
+    zValue.append(zVariable);
   }
-}
\ No newline at end of file
+}
+
+void controlFixed(int theValue) {
+  functionBoxResult = theValue;
+}
+
+void controlFree(int theValue) {
+  functionBoxResult = theValue;
+}
+
+void controlCamera() {
+  if (functionBoxResult == -1)
+  {
+    camera(mouseX, mouseY, (height/2) / tan(PI/5), width/2, height/2, 0, 0, 1, 0);
+  }
+}
+
+// main function to realize transforming the mouse position to 3D coordinates
+void getPressedPoints(float x1, float y1, float z1, float x2, float y2, float z2, color strokeColour)
+{
+  PVector p1 = new PVector(x1, y1, z1);
+  PVector p2 = new PVector(x2, y2, z2);
+  PVector v1 = new PVector(x2-x1, y2-y1, z2-z1);
+  float rho = sqrt(pow(v1.x, 2)+pow(v1.y, 2)+pow(v1.z, 2));
+  float phi = acos(v1.z/rho);
+  float the = atan2(v1.y, v1.x);
+  v1.mult(0.5);
+  pushMatrix();
+  translate(x1, y1, z1);
+  translate(v1.x, v1.y, v1.z); 
+  rotateZ(the); 
+  rotateY(phi);
+  noStroke();
+  fill(strokeColour);
+
+  getPoints(v1.x, v1.y, v1.z);
+  xVariable = v1.x;
+  yVariable = v1.y;
+  zVariable = v1.z;
+  output();
+  popMatrix();
+}
+
+// get points by mouse press
+void getPoints(float x, float y, float z) {
+  if(mousePressed) {
+    functionBoxResult = 0;
+    noCursor();
+    stroke(255);
+    mousePointSets(x, y, z);
+    println(xVariable);
+  }
+  else
+  {
+    functionBoxResult = -1;
+    cursor();
+  }
+}
+
+// output the x, y, z value in the textfield of functionbox
+void output() {
+  xv.setText(str(xVariable));
+  yv.setText(str(yVariable));
+  zv.setText(str(-zVariable));
+}
+
+// draw the points by mouse pressed
+void mousePointSets(float x, float y, float z) {
+  pushMatrix();
+    translate(x, y, z);
+    noFill();
+    stroke(255);
+    sphere(2.5);
+  popMatrix();
+  stroke(100);
+}
+
+/*
+void drawCoordsSystem() {
+  for (int i=0; i<500; i += 20){
+      stroke(96);
+      line(i, 0, 0, i, 0, 500);
+      line(0, i, 0, 0, i, 500);
+      line(0, 0, i, 0, 500, i);
+      line(i, 0, 0, i, 500, 0);
+      line(0, 0, i, 500, 0, i);
+      line(0, i, 0, 500, i, 0);
+    }
+        
+    strokeWeight(1);
+    //z-coordinate: red
+    stroke(255, 0, 0);
+    line(0, 0, -500, 0, 0, 500);  
+    arrow(0, 0, 500);
+    //y-coordinate: green
+    stroke(0, 102, 0);
+    line(0, -500, 0, 0, 500, 0);
+    arrow(0, 500, 0);
+    //x-coordinate: blue
+    stroke(0, 76, 153);
+    line(-500, 0, 0, 500, 0, 0);
+    arrow(500, 0, 0);
+}
+*/