diff --git a/CreasePatternScripts/SquareTwist/SquareTwist.pde b/CreasePatternScripts/SquareTwist/SquareTwist.pde
new file mode 100755
index 0000000000000000000000000000000000000000..12acc9e1a89879f5d5a1cd3bce0d76b1323249af
--- /dev/null
+++ b/CreasePatternScripts/SquareTwist/SquareTwist.pde
@@ -0,0 +1,166 @@
+import processing.pdf.*;
+
+boolean mountValleyColors = true;
+boolean dashedCreaseLines = true;
+
+float angle = PI/3;// PI/2 > angle > 0
+float edgeLength = 72;//1in and 72dpi
+float diagLength = 2*edgeLength/sqrt(2);
+
+void setup() {
+ size(400, 400);
+
+ //tesselation
+ beginRecord(PDF, "squaretwisttesselation.pdf");
+ background(255);
+
+ makeUnitCell(200,200);
+
+ endRecord();
+
+ //single twist
+ beginRecord(PDF, "squaretwist.pdf");
+ background(255);
+ makeSingleUnitCell(width/2,height/2);
+ endRecord();
+
+ //many single twists
+ size(700, 700);
+ beginRecord(PDF, "squaretwistManyAngles.pdf");
+
+ background(255);
+ for (int i=0;i<3;i++){
+ for (int j=0;j<3;j++){
+ float index = i*3+j;
+ angle = map(index, 0, 8, PI/6, 2*PI/6);
+ makeSingleUnitCell(j*width/3+width/6,i*height/3+height/6);
+ }
+ }
+
+ endRecord();
+
+// // Exit the program
+ println("Finished.");
+ exit();
+}
+
+void makeSingleUnitCell(float x, float y){
+ makeUnitCell(x, y, true, true, true, true, true);
+}
+
+void makeUnitCell(float x, float y){
+ makeUnitCell(x, y, false, false, false, false, false);
+}
+
+void makeUnitCell(float x, float y, boolean allBounds,
+boolean leftBounds, boolean topBounds, boolean bottomBounds, boolean rightBounds){
+ pushMatrix();
+ translate(x, y);
+ rotate(-angle/2);
+
+ setMountainColor();
+ //top
+ float square1X = diagLength/2*sin(angle-PI/4);
+ float square1Y = -diagLength/2*cos(angle-PI/4);
+
+ //right
+ float square2X = diagLength/2*sin(angle+PI/4);
+ float square2Y = -diagLength/2*cos(angle+PI/4);
+
+ drawCrease(square1X, square1Y, square1X, square1Y-edgeLength);
+ drawCrease(-square1X, -square1Y, -square1X, -square1Y+edgeLength);
+
+ drawCrease(square2X, square2Y, square2X+edgeLength, square2Y);
+ drawCrease(-square2X, -square2Y, -square2X-edgeLength, -square2Y);
+
+ //inner square
+ drawCrease(square1X, square1Y, square2X, square2Y);
+ drawCrease(square1X, square1Y, -square2X, -square2Y);
+ drawCrease(-square1X, -square1Y, square2X, square2Y);
+ drawCrease(-square1X, -square1Y, -square2X, -square2Y);
+
+ //bounds
+ if (allBounds) setCutColor();
+
+ if (leftBounds){
+ //left
+ line(square1X-edgeLength, square1Y-edgeLength, square1X-edgeLength, square1Y);
+ line(square1X-edgeLength, square1Y, -square2X-edgeLength, -square2Y);
+ line(-square2X-edgeLength, -square2Y, -square2X-edgeLength, -square2Y+edgeLength);
+ }
+
+ if (topBounds){
+ //top
+ line(square1X, square1Y-edgeLength, square1X-edgeLength, square1Y-edgeLength);
+ line(square1X, square1Y-edgeLength, square2X, square2Y-edgeLength);
+ line(square2X, square2Y-edgeLength, square2X+edgeLength, square2Y-edgeLength);
+ }
+
+ if (rightBounds){
+ //right
+ line(square2X+edgeLength, square2Y-edgeLength, square2X+edgeLength, square2Y);
+ line(square2X+edgeLength, square2Y, -square1X+edgeLength, -square1Y);
+ line(-square1X+edgeLength, -square1Y, -square1X+edgeLength, -square1Y+edgeLength);
+ }
+
+ if (bottomBounds){
+ //bottom
+ line(-square1X+edgeLength, -square1Y+edgeLength, -square1X, -square1Y+edgeLength);
+ line(-square1X, -square1Y+edgeLength, -square2X, -square2Y+edgeLength);
+ line(-square2X, -square2Y+edgeLength, -square2X-edgeLength, -square2Y+edgeLength);
+ }
+
+ setValleyColor();
+ drawCrease(square1X, square1Y, square1X-edgeLength, square1Y);
+ drawCrease(-square1X, -square1Y, -square1X+edgeLength, -square1Y);
+
+ drawCrease(square2X, square2Y, square2X, square2Y-edgeLength);
+ drawCrease(-square2X, -square2Y, -square2X, -square2Y+edgeLength);
+
+ popMatrix();
+}
+
+void setMountainColor(){
+ if (mountValleyColors){
+ stroke(0,0,255);//blue
+ } else {
+ setCreaseColor();
+ }
+}
+
+void setValleyColor(){
+ if (mountValleyColors){
+ stroke(255,0,0);//red
+ } else {
+ setCreaseColor();
+ }
+}
+
+void setCutColor(){
+ stroke(0);//black
+}
+
+void setCreaseColor(){
+ stroke(255,0,0);//red
+}
+
+void drawCrease(float x1, float y1, float x2, float y2){
+ if (dashedCreaseLines){
+ dashedLine(x1, y1, x2, y2, 6, 6);
+ } else {
+ line(x1, y1, x2, y2);
+ }
+}
+
+void dashedLine(float x1, float y1, float x2, float y2, float dashLength, float spaceLength){
+ pushMatrix();
+ translate(x1, y1);
+ rotate(atan2(y2-y1, x2-x1));
+ float lineLength = sqrt((y2-y1)*(y2-y1) + (x2-x1)*(x2-x1));
+ float partialDash = lineLength/(dashLength+spaceLength) - floor(lineLength/(dashLength+spaceLength));
+ for (float i=(partialDash+spaceLength)/2;i<lineLength;i+=dashLength+spaceLength){
+ line(i, 0, i+dashLength, 0);
+ }
+ popMatrix();
+}
+
diff --git a/CreasePatternScripts/TriTesselation/TriTesselation.pde b/CreasePatternScripts/TriTesselation/TriTesselation.pde
new file mode 100755
index 0000000000000000000000000000000000000000..bd6fdce0373f027ffa81efe6a9d6d6b8e79588a3
--- /dev/null
+++ b/CreasePatternScripts/TriTesselation/TriTesselation.pde
@@ -0,0 +1,74 @@
+import processing.pdf.*;
+
+float triangleHeight = 40;//40px/72dpi = ~0.55in tall
+boolean dashedCreaseLines = true;
+
+void setup() {
+
+ //20in*72dpi= 1440px
+ size(1440, 1440, PDF, "tritesselation.pdf");
+ background(255);
+
+ //horizontal lines
+ for (float i=triangleHeight;i<height;i+=triangleHeight){
+ drawCrease(0, i, width, i);
+ }
+
+ // \\\\\\ lines
+ for (float i=-height/sqrt(3);i<width;i+=2*triangleHeight/sqrt(3)){
+
+ float xPos = i+height/sqrt(3);
+ if (xPos>width){
+ float xDiff = xPos-width;
+ drawCrease(i, 0, width, height-xDiff*sqrt(3));
+ } else if (i<0){
+ float xDiff = -i;
+ drawCrease(0, xDiff*sqrt(3), i+height/sqrt(3), height);
+ } else {
+ drawCrease(i, 0, i+height/sqrt(3), height);
+ }
+ }
+
+ // //////// lines
+ for (float i=0;i<width+height/sqrt(3);i+=2*triangleHeight/sqrt(3)){
+
+ float xPos = i-height/sqrt(3);
+ if (i>width){
+ float xDiff = i-width;
+ drawCrease(width, xDiff*sqrt(3), i-height/sqrt(3), height);
+ } else if (xPos<0){
+ float xDiff = -xPos;
+ drawCrease(i, 0, 0, height - xDiff*sqrt(3));
+ } else {
+ drawCrease(i, 0, i-height/sqrt(3), height);
+ }
+
+ }
+
+ // Exit the program
+ println("Finished.");
+ exit();
+}
+
+void drawCrease(float x1, float y1, float x2, float y2){
+ if (dashedCreaseLines){
+ float numDashesPerSide = 5;
+ float dashLength = triangleHeight*2/sqrt(3)/(numDashesPerSide*2);
+ dashedLine(x1, y1, x2, y2, dashLength, dashLength);
+ } else {
+ line(x1, y1, x2, y2);
+ }
+}
+
+void dashedLine(float x1, float y1, float x2, float y2, float dashLength, float spaceLength){
+ pushMatrix();
+ translate(x1, y1);
+ rotate(atan2(y2-y1, x2-x1));
+ float lineLength = sqrt((y2-y1)*(y2-y1) + (x2-x1)*(x2-x1));
+ float partialDash = lineLength/(dashLength+spaceLength) - floor(lineLength/(dashLength+spaceLength));
+ println(partialDash);
+ for (float i=(partialDash+spaceLength)/2;i<lineLength;i+=dashLength+spaceLength){
+ line(i, 0, i+dashLength, 0);
+ }
+ popMatrix();
+}
diff --git a/README.md b/README.md
index 63b1975fb52bf7e7fb883ffb30fa332e9534ed7c..68de94c5915d71f8b25e6f809080fff869ce8765 100755
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
# OrigamiSimulator
-Live demo at <a href="http://git.amandaghassaei.com/OrigamiSimulator">git.amandaghassaei.com/OrigamiSimulator</a><br/>
+Live demo at <a href="http://apps.amandaghassaei.com/OrigamiSimulator">apps.amandaghassaei.com/OrigamiSimulator</a><br/>
<img src="crane.gif" />