我正在尝试使用 KineticJS 在图像上绘制不同的形状，并使用不同的按钮进行放大和缩小，每个元素都可以通过 itsetlf 正常工作，但是当我在同一页面上组合所有功能时，没有任何效果。这是绘制线条的脚本：
if (drawnewline) {
document.getElementById('dLine').onclick = function() {
layer.on("mousedown", function () {
if (moving) {
moving = false;
layer.draw();
} else {
var mousePos = stage.getMousePosition();
x1 = mousePos.x;
y1 = mousePos.y;
line = new Kinetic.Line({
points: [0, 0, 50, 50],
stroke: "red"
});
layer.add(line);
line.getPoints()[0].x = mousePos.x;
line.getPoints()[0].y = mousePos.y;
line.getPoints()[1].x = mousePos.x;
line.getPoints()[1].y = mousePos.y;
moving = true;
layer.drawScene();
}
});
layer.on("mousemove", function () {
if (moving) {
var mousePos = stage.getMousePosition();
var x = mousePos.x;
var y = mousePos.y;
line.getPoints()[1].x = mousePos.x;
line.getPoints()[1].y = mousePos.y;
moving = true;
layer.drawScene();
}
});
layer.on("mouseup", function () {
moving = false;
var mousePos = stage.getMousePosition();
x2 = mousePos.x;
y2 = mousePos.y;
$("#distance").val(calculateDistance(x1, y1, x2, y2));
});
};
};
完整的脚本可以在http://jsfiddle.net/MEQxq/查看。我会很感激你的建议，并在此先感谢。