setTransform-ref.html (303B)
1 <!DOCTYPE html> 2 <html> 3 <body> 4 <canvas id ="canvas" width="200" height="200"></canvas> 5 <script> 6 var ctx = document.getElementById('canvas').getContext('2d'); 7 ctx.fillStyle = 'green'; 8 let m = ctx.getTransform(); 9 m.a = 2; 10 m.d = 2; 11 ctx.setTransform(m); 12 ctx.fillRect(0, 0, 50, 50); 13 </script> 14 </body> 15 </html>