javascript - easeljs animate endAngle of arc -


using easeljs how animate endangle of arc

i tried make own property pie.setmyangle = 0.1; , increment in tick did not work

function init() {      var canvas = document.getelementbyid('easel');     var stage = new createjs.stage(canvas);      var pie = new createjs.shape();     pie.setmyangle = 0.1;     pie.graphics.beginfill("rgba(255,255,255,1)").arc(75, 75, 75, 0, math.pi * pie.setmyangle, false).lineto(75, 75).closepath();      stage.addchild(pie);      createjs.ticker.addeventlistener("tick", handletick);      function handletick() {         pie.setmyangle += 0.1; //not working         pie.x += 1         stage.update();     } }

changing custom properties (e.g. setmyangle) doesn't automatically update shape; you'll have redraw yourself. example, move drawing code handletick method:

function handletick() {     pie.setmyangle += 0.1;     pie.x += 1;     pie.graphics.clear();     pie.graphics.beginfill("rgba(255,255,255,1)").arc(75, 75, 75, 0, math.pi * pie.setmyangle, false).lineto(75, 75).closepath();     stage.update(); }

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