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Examples.md

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Examples

Live Examples

You can check out a live version of these examples by visiting the project page http://peregrinogris.github.io/tortuga, where you'll also find some advanced examples involving L-systems rendering.

Code Samples

// Create a figure using poly
var turtle = new Tortuga('#tortuga-poly-figure');
function poly(angle, size) {
  for (var i = 0; i < 360; i += angle) {
    turtle.forward(size);
    turtle.right(angle);
  }
}
for (var i = 0; i <= 30; i++) {
turtle.color(0, 15 + 8 * i, 255 - 8 * i);
poly(27, 50);
turtle.right(100);
}
turtle.drawPath();
 Poly Figure 

// Create a figure using spiral
turtle = new Tortuga('#tortuga-spiral');
function polySpiral(angle, length) {
  for (var i = 0; i < 360 / angle; i++) {
    turtle.forward(length);
    turtle.right(angle);
    length += 2;
  }
  return length;
}
function spiral(angle, initialLength) {
for (var i = 0; i <= 30; i++) {
turtle.color(0, 15 + 8 * i, 255 - 8 * i);
initialLength = polySpiral(angle, initialLength);
turtle.drawPath();
}
}
spiral(92, 30);
 Spiral 
// Dashed 5 pointed star
turtle = new Tortuga('#tortuga-poly-dashed', -215, -95);
function dashedPoly(angle) {
  var totalTurning = 0;
  do {
    for (var i = 0; i <= 30; i++) {
      turtle.rainbow(i, 30);
      turtle.forward(10);
      turtle.penUp();
      turtle.right(90);
      turtle.forward(10);
      turtle.left(90);
      turtle.penDown();
    }
    turtle.right(angle);
    totalTurning = (totalTurning + angle) % 360;
  } while (totalTurning > 0);
}
dashedPoly(144);
Poly Dashed