前端之gojs插件的基本使用
gojs是一个前端插件，可以通过代码动态的生成流程图，各自展示图
参考网址:https://gojs.net/latest/index.html
如果你想使用，需要先下载对应的文件
我们能用的到的其实就三个文件
"""
gojs.js 需要导入的js文件
go-debug.js 会帮你打印错误日志
上面两个文件就类似于一个是压缩的一个是没有压缩的
Figures.js
gojs.js内部只带了基本的图形 如果你想用更多的如下则需要导入该文件
"""
基本使用
先用div占据一块区域，之后在该区域内生成对应的图标及各种流程图
<div id="myDiagramDiv" style="width:500px; height:350px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script>
var $ = go.GraphObject.make;
// 第一步：创建图表
var myDiagram = $(go.Diagram, "myDiagramDiv"); // 创建图表，用于在页面上画图
// 第二步：创建一个节点，内容为jason
var node = $(go.Node, $(go.TextBlock, {text: "蔡徐坤"}));
// 第三步：将节点添加到图表中
myDiagram.add(node)
</script>
重要概念
- TextBlock 文本
- Shape 图形
- Node 图形与文本结合
- Link 箭头
TextBlock
<div id="myDiagramDiv" style="width:500px; height:350px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script>
var $ = go.GraphObject.make;
// 第一步：创建图表
var myDiagram = $(go.Diagram, "myDiagramDiv"); // 创建图表，用于在页面上画图
var node1 = $(go.Node, $(go.TextBlock, {text: "蔡徐坤"}));
myDiagram.add(node1);
var node2 = $(go.Node, $(go.TextBlock, {text: "蔡徐坤", stroke: 'red'}));
myDiagram.add(node2);
var node3 = $(go.Node, $(go.TextBlock, {text: "蔡徐坤", background: 'yellow'}));
myDiagram.add(node3);
</script>
Shape
<div id="myDiagramDiv" style="width:500px; height:350px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script src="Figures.js"></script>
<script>
var $ = go.GraphObject.make;
// 第一步：创建图表
var myDiagram = $(go.Diagram, "myDiagramDiv"); // 创建图表，用于在页面上画图
var node1 = $(go.Node,
$(go.Shape, {figure: "Ellipse", width: 40, height: 40})
);
myDiagram.add(node1);
var node2 = $(go.Node,
$(go.Shape, {figure: "RoundedRectangle", width: 40, height: 40, fill: 'green',stroke:'red'})
);
myDiagram.add(node2);
var node3 = $(go.Node,
$(go.Shape, {figure: "Rectangle", width: 40, height: 40, fill: null})
);
myDiagram.add(node3);
var node5 = $(go.Node,
$(go.Shape, {figure: "Club", width: 40, height: 40, fill: 'red'})
);
myDiagram.add(node5);
</script>
Node
<div id="myDiagramDiv" style="width:500px; height:350px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script src="Figures.js"></script>
<script>
var $ = go.GraphObject.make;
// 第一步：创建图表
var myDiagram = $(go.Diagram, "myDiagramDiv"); // 创建图表，用于在页面上画图
var node1 = $(go.Node,
"Vertical", // 垂直方向
{
background: 'yellow',
padding: 8
},
$(go.Shape, {figure: "Ellipse", width: 40, height: 40,fill:null}),
$(go.TextBlock, {text: "蔡徐坤"})
);
myDiagram.add(node1);
var node2 = $(go.Node,
"Horizontal", // 水平方向
{
background: 'white',
padding: 5
},
$(go.Shape, {figure: "RoundedRectangle", width: 40, height: 40}),
$(go.TextBlock, {text: "蔡徐坤"})
);
myDiagram.add(node2);
var node3 = $(go.Node,
"Auto", // 居中
$(go.Shape, {figure: "Ellipse", width: 80, height: 80, background: 'green', fill: 'red'}),
$(go.TextBlock, {text: "蔡徐坤"})
);
myDiagram.add(node3);
</script>
Link
<div id="myDiagramDiv" style="width:500px; min-height:450px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script>
var $ = go.GraphObject.make;
var myDiagram = $(go.Diagram, "myDiagramDiv",
{layout: $(go.TreeLayout, {angle: 0})}
); // 创建图表，用于在页面上画图
var startNode = $(go.Node, "Auto",
$(go.Shape, {figure: "Ellipse", width: 40, height: 40, fill: '#79C900', stroke: '#79C900'}),
$(go.TextBlock, {text: '开始', stroke: 'white'})
);
myDiagram.add(startNode);
var downloadNode = $(go.Node, "Auto",
$(go.Shape, {figure: "RoundedRectangle", height: 40, fill: 'red', stroke: '#79C900'}),
$(go.TextBlock, {text: '下载代码', stroke: 'white'})
);
myDiagram.add(downloadNode);
var startToDownloadLink = $(go.Link,
{fromNode: startNode, toNode: downloadNode},
$(go.Shape, {strokeWidth: 1}),
$(go.Shape, {toArrow: "OpenTriangle", fill: null, strokeWidth: 1})
);
myDiagram.add(startToDownloadLink);
</script>
上述代码只需要看懂即可，无需掌握
数据绑定的方式
<div id="diagramDiv" style="width:100%; min-height:450px; background-color: #DAE4E4;"></div>
<script src="go.js"></script>
<script>
var $ = go.GraphObject.make;
var diagram = $(go.Diagram, "diagramDiv",{
layout: $(go.TreeLayout, {
angle: 0,
nodeSpacing: 20,
layerSpacing: 70
})
});
// 先创建一个模版
diagram.nodeTemplate = $(go.Node, "Auto",
$(go.Shape, {
figure: "RoundedRectangle",
fill: 'yellow',
stroke: 'yellow'
}, new go.Binding("figure", "figure"), new go.Binding("fill", "color"), new go.Binding("stroke", "color")),
$(go.TextBlock, {margin: 8}, new go.Binding("text", "text"))
);
// 先创建一个模版
diagram.linkTemplate = $(go.Link,
{routing: go.Link.Orthogonal},
$(go.Shape, {stroke: 'yellow'}, new go.Binding('stroke', 'link_color')),
$(go.Shape, {toArrow: "OpenTriangle", stroke: 'yellow'}, new go.Binding('stroke', 'link_color'))
);
// 数据格式是列表套字典 也就意味着可以从后端构造数据
var nodeDataArray = [
{key: "start", text: '开始', figure: 'Ellipse', color: "lightgreen"},
{key: "download", parent: 'start', text: '下载代码', color: "lightgreen", link_text: '执行中...'},
{key: "compile", parent: 'download', text: '本地编译', color: "lightgreen"},
{key: "zip", parent: 'compile', text: '打包', color: "red", link_color: 'red'},
{key: "c1", text: '服务器1', parent: "zip"},
{key: "c11", text: '服务重启', parent: "c1"},
{key: "c2", text: '服务器2', parent: "zip"},
{key: "c21", text: '服务重启', parent: "c2"},
{key: "c3", text: '服务器3', parent: "zip"},
{key: "c31", text: '服务重启', parent: "c3"}
];
diagram.model = new go.TreeModel(nodeDataArray);
// 动态控制节点颜色变化 先找到节点之后改变
var node = diagram.model.findNodeDataForKey("zip");
diagram.model.setDataProperty(node, "color", "lightgreen");
</script>
如何去除自带的水印
修改go.js/go-debug.js中的源码
1.查找一个字符串:7eba17a4ca3b1a8346，注释所在行
/*a.kr=b.V[Ra("7eba17a4ca3b1a8346")][Ra("78a118b7")](b.V,Jk,4,4);*/
2.添加新的代码
a.kr=function(){return true};
