将图像数组绘制到画布上

Question

我正在尝试将一组图像绘制到canvas元素，我的数据：image返回一个空图像。

var imgArray = ['images/image1.png','images/image2.png'];
        for(i = 0; i < 2; i++){
            var canvas = document.getElementById('textCanvas');
            var context = canvas.getContext("2d");
            var imageObj = new Image();
            imageObj.setAtX = i * 10;
imageObj.setAtY = i * 10;
imageObj.onload = function() {
 context.drawImage(this, this.setAtX, this.setAtY);
};
        }

    img = canvas.toDataURL("image/png");

Answer 1

你永远不会设置图像＆＃39;源：

var imageObj = new Image();
imageObj.src = imgArray[i]; // << addeed
imageObj.setAtX = i * 10;
imageObj.setAtY = i * 10;
imageObj.onload = function() {
 context.drawImage(this, this.setAtX, this.setAtY);
};