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我有這fiddle,我想實現畫布視圖的光柵縮略圖。一切正常,直到某些路徑溢出視圖邊界,那些溢出的部分也會導出到縮略圖中,這是不需要的。只有在畫布上可見的部分應該在拇指中可見。我已經嘗試過clipMask,不幸的是沒有成功。Paperjs柵格化activeLayer從視圖邊界
HTML代碼
<canvas id="c"></canvas>
<img id="thumb" />
paperscript代碼
paper.install(window);
var canvas = document.getElementById('c');
paper.setup(canvas);
var style = {
fillColor : 'black'
};
var objects = new Group();
var background = new Path.Rectangle(view.bounds);
background.fillColor = 'red';
var rect = new Path.Rectangle(-10, 20 , 40, 50);
rect.fillColor = style;
objects.addChild(rect);
var rect = new Path.Rectangle(60, -20 , 40, 50);
rect.fillColor = style;
objects.addChild(rect);
var rect = new Path.Rectangle(195, 20 , 40, 50);
rect.fillColor = style;
objects.addChild(rect);
var rect = new Path.Rectangle(60, 195 , 40, 50);
rect.fillColor = style;
objects.addChild(rect);
objects.bringToFront();
view.draw();
var data = project.activeLayer.rasterize().toDataURL();
var img = document.getElementById('thumb');
img.src = data;
難道你們有什麼想法,這可怎麼解決呢?
非常感謝您的幫助。