【文件属性】:
文件名称:使用鼠标绘制canvase图形
文件大小:2KB
文件格式:HTML
更新时间:2022-06-11 10:30:00
canvase
使用鼠标绘制canvase图形
function mousedownHandler (event){
if(event.button == 0 && !flag) {
points.push({
x: event.pageX - cvsClientRect.x,
y: event.pageY - cvsClientRect.y
});
console.log(points)
if(points.length>=1) {
cvs.addEventListener("mousemove", mousemoveHandler, false);
}
drawPolygon(points);
} else if(event.button === 2) {
flag = true;
cvs.removeEventListener("mousemove", mousemoveHandler);
}
}