Code Sketch
Boat
cleari
//showAxes()
//showGrid()
tangram.draw
def tangram = picStack(
Picture {},
square.thatsFilledWith(red).thatsRotated(45).withFlippedY,
triangle1.thatsFilledWith(green).thatsTranslated(-100, 0).withFlippedY,
triangle1.thatsFilledWith(green).thatsRotated(135).thatsTranslated(142, 0),
triangle1.thatsFilledWith(green).thatsRotated(135).thatsTranslated(71,70),
triangle2.thatsFilledWith(blue).thatsRotated(270).thatsTranslated(-100,100),
triangle2.thatsFilledWith(pink).thatsRotated(-0.1)thatsTranslated(-100,100),
// triangle3.thatsFilledWith(cm.gray),
parallelogram.thatsFilledWith(brown).thatsRotated(270).thatsTranslated(0, 0),
// triangle4.thatsFilledWith(orange).thatsTranslated(0, -100),
)
def square = Picture {
right(135)
forward(70.71)
right(90)
forward(70.71)
right(90)
forward(70.71)
right(90)
forward(70.71)
right(90)
}.thatsStrokeColored(black)
def triangle1 = Picture {
right()
forward(100)
left(135)
forward(70.71)
left(90)
forward(70.71)
}.thatsStrokeColored(black)
def triangle2 = Picture {
right(135)
forward(141.42)
left(135)
forward(200)
left(135)
forward(141.42)
}.thatsStrokeColored(black)
def triangle3 = Picture {
left(45)
forward(70.71)
left(135)
forward(100)
left(135)
forward(70.71)
}.thatsStrokeColored(black)
def parallelogram = Picture {
forward(100)
right(135)
forward(70.71)
right(45)
forward(100)
right(135)
forward(70.71)
}.thatsStrokeColored(black)
def triangle4 = Picture {
left(45)
forward(141.42)
left(135)
forward(100)
left(90)
forward(100)
}.thatsStrokeColored(black)