input.txt

resetCanvas 600 600
setColor 0 255 0
drawLine line1 0 0 500 250 DDA
clip line1 50 50 400 200 Cohen-Sutherland
setColor 255 0 0
drawLine line2 500 250 250 500 Bresenham
translate line2 -50 -50
drawLine line3 100 100 100 500 Bresenham
clip line3 0 0 200 200 Liang-Barsky
drawLine line4 200 500 400 300 Bresenham
clip line4 250 200 350 400 Liang-Barsky
saveCanvas 1
resetCanvas 600 600
setColor 0 0 255
drawPolygon polygon1 100 100 500 500 100 500 DDA
saveCanvas 2
resetCanvas 600 600
drawPolygon polygon2 200 100 300 100 350 200 300 300 200 300 150 200 Bresenham
drawPolygon polygon3 200 100 300 100 350 200 300 300 200 300 150 200 Bresenham
scale polygon3 200 200 1.5
setColor 255 0 0
drawPolygon polygon4 200 100 300 100 350 200 300 300 200 300 150 200 Bresenham
rotate polygon4 300 200 30
saveCanvas 3
resetCanvas 600 600
setColor 0 255 0
drawEllipse ellipse1 100 100 500 400
drawEllipse ellipse2 100 100 500 400
scale ellipse2 50 50 0.7
setColor 255 0 0
drawEllipse ellipse3 130 181 339 100
drawEllipse ellipse4 204 332 377 403
saveCanvas 4
resetCanvas 600 600
drawCurve curve1 50 200 100 100 150 200 Bezier
drawCurve curve2 50 400 100 300 150 400 200 300 Bezier
setColor 0 0 255
drawCurve curve3 250 400 300 300 350 400 400 300 B-spline
drawCurve curve4 250 200 300 50 350 250 400 100 450 200 B-spline
saveCanvas 5