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4-events-mouseDownAndMouseMove(自己实现了 svg.draggable插件) -path.html
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4-events-mouseDownAndMouseMove(自己实现了 svg.draggable插件) -path.html
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<!DOCTYPE html>
<head>
<title>Title</title>
<link rel="stylesheet" type="text/css" href="svg270/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="svg270/themes/icon.css">
<script type="text/javascript" src="svg270/jquery.min.js"></script>
<script type="text/javascript" src="svg270/jquery.easyui.min.js"></script>
<!--高版本-->
<script src="svg311/node_modules/@svgdotjs/svg.js/dist/svg.js"></script>
<script src="svg311/node_modules/@svgdotjs/svg.panzoom.js/dist/svg.panzoom.js"></script>
<!-- <script src="svg311/node_modules/@svgdotjs/svg.draggable.js/dist/svg.draggable.js"></script> -->
</head>
<body>
<div id="drawing" style="width:500px;height:400px;border: 1px solid green;"></div>
</body>
<script>
class Test {
constructor() {
/**
* 模拟画布
*/
this.outerId = "outerId";
//创建一个内置的 <div>
$("#drawing").append("<div tabIndex=-1 class='svg-canvas-outer svg-canvas-background' id='" + this.outerId + "' style='width:100%;height:100%;'></div>");
let width = $('#' + this.outerId).width();
let height = $('#' + this.outerId).height();
this.draw = SVG().addTo('#' + this.outerId).size("100%", "100%");
// pan and zoom {zoomFactor:2} 默认 为 2
this.draw.viewbox("0 0 " + width + " " + height).panZoom({ panButton: 1, zoomMin: 0.01, zoomMax: 100, zoomFactor: 1 });
this.pipeEditorUnit = new PipeEditorUnit(this, true);
let _this = this;
var p = this.draw.path("M 100 50 V 100 H 200 V300 H 400 V 350");
p.css({ "fill": "none", "stroke": "green", "stroke-width": "1mm" });
let defaultStyle = p.css();
let flag = false;
p.click(function (e) {
var box = _this.transformFrom(e.offsetX, e.offsetY);
// SVGUtil.viewPoint(_this.draw, box, 1)
flag = !flag;
if(flag){
p.css({ "stroke": "yellow" })
_this.pipeEditorUnit.watch(p)
}else{
p.css(defaultStyle);
_this.pipeEditorUnit.clearWatching();
}
})
this.draw.on("contextmenu",function(){
});
}
/**
* 坐标转换公式
* from (x,y)-> vbox(x,y)
* @private
* @ignore
*/
transformFrom(outerX, outerY) {
outerX = (outerX ? outerX : 0);
outerY = (outerY ? outerY : 0);
//将外部坐标转换为内部 vbox坐标系
var box = this.draw.viewbox();
// console.log(box);
var width4Client = $("#" + this.outerId).width();
var height4Client = $("#" + this.outerId).height();
// console.log(width4Client, height4Client);
//计算图例在 vbox 中的真实坐标
var x4Vbox = (box.width / parseFloat(width4Client)) * outerX + box.x;
var y4Vbox = (box.height / parseFloat(height4Client)) * outerY + box.y;
//计算图例在 vbox 中的缩放比例
var zoom = box.zoom;
return {
x: x4Vbox,
y: y4Vbox,
zoom: zoom,
outer: {
x: outerX,
y: outerY
}
}
}
};
class SVGUtil{
/**
* 查看 point
* 专用于测试时，查看点的位置
* @auther jx
* @param {}} point
*/
static viewPoint(draw, point, color, diameter) {
if (!diameter) {
diameter = 10;
}
if (!color) {
color = "#9E2BF4";
}
let c = draw.circle(diameter).center(point.x, point.y);
if (color) {
c.css({ "fill": color });
}
return c;
}
}
let a = new Test();
</script>
</html>