gojs插件干货：重要概念介绍，数据绑定式，以及怎样去除自带水印方法
gojs插件
是一个前端插件，跟go和js没有半毛钱关系
主要可以通过代码动态的生成和修改图表数据(组织架构图，执行流程图等等)
网址:https://gojs.net/latest/index.html
如果你想使用，需要下载他的文件
目前需要我们了解的文件其实只有三个，用得到的只有两个
""" 1.go.js 是使用gojs所必须要导入的js文件 2.go-debug.js 可以帮你打印一些bug日志 正常线上不会使用 3.Figures.js go.js中自带了一些基本的图标，额外扩展的图标需要引入该文件 """ # 总结你在使用的导入go.js和Figures.js就够了
基本使用
gojs使用基本套路是先在页面上写一个div站地方，之后初始化该div，再然后所有的图标渲染都在该div内进行！！！
<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: "jason"}));
// 第三步：将节点添加到图表中
myDiagram.add(node)
</script>重要概念介绍
- TextBlock 创建文本
- Shape 创建图形
- Node 节点(结合文本与图形)
- Links 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: "jason"}));
myDiagram.add(node1);
var node2 = $(go.Node, $(go.TextBlock, {text: "jason", stroke: ‘red‘}));
myDiagram.add(node2);
var node3 = $(go.Node, $(go.TextBlock, {text: "jason", background: ‘lightblue‘}));
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 node4 = $(go.Node,
$(go.Shape, {figure: "Club", width: 40, height: 40, fill: ‘red‘})
);
myDiagram.add(node4);
</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: "jason"})
);
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: "jason"})
);
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: "jason"})
);
myDiagram.add(node3);
</script>links
<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>思考:
1.如何做到数据的前后端交互，图标的动态修改
2.如何去除gojs自带的水印
数据绑定式
<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
})
});
// 创建一个节点模版
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"))
);
// 创建一个箭头模版
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‘))
);
// 这里的数据后期就可以通过后端来获取
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
var node = diagram.model.findNodeDataForKey("zip");
diagram.model.setDataProperty(node, "color", "lightgreen");
</script>如何去除gojs自带的水印
需要修改go.js文件源码
需要找到一个特定的字符串注释该字符串所在的一行代码
# 7eba17a4ca3b1a8346 a.kr=b.V[Ra("7eba17a4ca3b1a8346")][Ra("78a118b7")](b.V,Jk,4,4);在后面添加一行新的代码
a.kr=function(){return false};