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// set canvas to fullscreen
$("canvas").attr('height',$(document).height());
$("canvas").attr('width', $(document).width());
//load bkgd img to canvas
function dwg(){
$("canvas").drawImage({
source: "img/bkgd.jpg",
x: 0,
y: 0,
height : $(document).height(),
width : $(document).width(),
fromCenter: false
});
}
dwg();
// resize window event
$(window).resize(function(){
//console.log($(window).height()+', '+$(window).width());
$("canvas").attr('height',$(document).height());
$("canvas").attr('width', $(document).width());
dwg();
});
// Stop distort w/ jcanvas
$("canvas").scaleCanvas({
x: 100, y: 100,
width: 1, height: 1
})
即使在背景調整大小的情況下,此圖像仍應保持全色背景(某些裁剪可以)。隨着HTML5畫布...如何保持比例?
這是使用jcanvas庫http://calebevans.me/projects/jcanvas/
建議,請?
這裏還有一個繪圖功能,爲簡潔起見我省略了它。