形状连线(ShapeLink)
ShapeLink继承于Link,使用方法和ShapeNode类似，添加删除控制点相关方法：
addPoint:function(point,index)
setPoint:function(point,index)
getPoints:function()
setPoints:function(value)
removePoint:function(point)
removeAt:function(index)
首先我们需要创建一个shapeLink节点，然后添加绘制点addPoint({x:100,y:200})
shapeLink的类型
创建ShapeLink并添加控制点之后，我们可以灵活的控制每段link的绘制方式，
一般情况下，我们支持lineto,orthogonalto,quadto,cubicto四种方式。
直线连接：lineto
正交连接：orthogonalto
二次贝塞尔曲线：quadto
三次贝塞尔曲线：cubicto
使用：
link.s('shapelink.type','lineto');//lineto,orthogonalto,quadto,cubicto
这是四种shapeLink的类型，并没有发现和addPoint的点坐标有什么关系…
代码：
react页面代码
/*
* @Descripttion:
* @version:
* @Author: ZhangJunQing
* @Date: 2022-04-18 14:44:05
* @LastEditors: ZhangJunQing
* @LastEditTime: 2022-04-21 18:51:20
*/
import React, {
useEffect, useState } from 'react'
import {
returnElementBoxAndNetworkFun,
returnNodeFun,
returnLineFun,
} from './utils'
const twaver = require('twaver');
// const demo = require('demo');
const Demo = () => {
const [network, setnetwork] = useState({
})
const init = () => {
const [box, network] = returnElementBoxAndNetworkFun()
setnetwork(_ => network)
network.invalidateElementUIs();
document.getElementById("testID").appendChild(network.getView());
// 设置最初的大小
network.adjustBounds({
x: 0, y: 0, width: 1000, height: 1000 });
var node1 = returnNodeFun(box, {
name: 'from', location: {
x: 100, y: 100 } });
var node2 = returnNodeFun(box, {
name: 'to', location: {
x: 600, y: 600 } });
let shapelink = new twaver.ShapeLink(node1, node2)
shapelink.setName('shapeLink')
// shapelink.addPoint({ x: 450, y: 250 })
// shapelink.addPoint({ x: 250, y: 450 })
// shapelink.addPoint({ x: 350, y: 550 })
// shapelink.s('shapelink.type', 'lineto')//直线
// shapelink.s('shapelink.type', 'orthogonalto')//正交直线
// shapelink.s('shapelink.type', 'quadto')//二次贝塞尔曲线
// shapelink.s('shapelink.type', 'cubicto')//三次贝塞尔曲线
box.add(shapelink)
// 当添加一个list的时候
//数组两个坐标点 shapelink.type为quadto 二次贝塞尔曲线
//数组三个坐标点 shapelink.type为cubicto 三次贝塞尔曲线
let list = new twaver.List()
list.add({
x: 350, y: 150 })
list.add({
x: 550, y: 50 })
// list.add({ x : 250, y : 250 })
shapelink.addPoint(list)
}
useEffect(init, [])
return (
<>
<p style={
{
fontSize: "20px", paddingLeft: "50px", poaddingTop: "50px" }}>tips: </p>
<ul style={
{
fontSize: "20px", paddingLeft: "50px" }}>
<li>形状连线(ShapeLink)</li>
</ul>
{
/* 画布元素需要开启定位 不然生成的图元坐标点会偏移 */}
<div id="testID" style={
{
width: "800px", height: "800px", border: "1px solid #ccc", position: "relative" }}></div>
</>
)
}
export default Demo
工具js
const twaver = require('twaver');
// 设置每个图元name的颜色
twaver.Styles.setStyle('label.color', '#ec6c00');
// 设置每个图元name2的颜色
twaver.Styles.setStyle('label2.color', '#57ab9a');
twaver.Styles.setStyle('select.color', '#ef8200');
//TWaver内部预定义六中告警级别
twaver.AlarmSeverity.CRITICAL = twaver.AlarmSeverity.add(500, 'Critical', 'C', "#FF0000");
twaver.AlarmSeverity.MAJOR = twaver.AlarmSeverity.add(400, 'Major', 'M', "#FFA000");
twaver.AlarmSeverity.MINOR = twaver.AlarmSeverity.add(300, 'Minor', 'm', "#FFFF00");
twaver.AlarmSeverity.WARNING = twaver.AlarmSeverity.add(200, 'Warning', 'W', "#00FFFF");
twaver.AlarmSeverity.INDETERMINATE = twaver.AlarmSeverity.add(100, 'Indeterminate', 'N', "#C800FF");
twaver.AlarmSeverity.CLEARED = twaver.AlarmSeverity.add(0, 'Cleared', 'R', "#00FF00");
const {
CRITICAL, MAJOR, WARNING, MINOR, INDETERMINATE, CLEARED } = twaver.AlarmSeverity
export const ALARM1 = CLEARED
export const ALARM2 = INDETERMINATE
export const ALARM3 = MINOR
export const ALARM4 = MAJOR
export const ALARM5 = CRITICAL
/**
* 创建一个dataBox容器
* 容器中可以add图元
*/
export const returnElementBoxFun = () => new twaver.ElementBox()
/**
* 创建一个画布 network对象
* @param {ElementBox} box 创建一个画布 network对象
*/
export const returnNetworkFun = (box) => new twaver.vector.Network(box)
/**
* 创建一个Group
* 用于包裹图元
*/
export const returnGroupFun = (box, obj = {
}) => {
let group = new twaver.Group(obj)
box.add(group)
return group
}
/**
* 创建一个容器dataBox和一个画布
* 并将容器实例化画布
* @returns [box,network] box network
*/
export const returnElementBoxAndNetworkFun = () => {
let box = returnElementBoxFun();
let network = returnNetworkFun(box);
return [box, network]
}
/**
* 用于创建一个节点
* @param {ElementBox} box dataBox
* @param {String} name 当前节点的name
* @param {Number} x 当前节点的x坐标
* @param {Number} y 当前节点的y坐标
* @returns {Node} Node
*/
export const returnNodeFun = (box, Obj = {
}) => {
let node = new twaver.Node(Obj);
// node.setName(name);
// node.setLocation(x, y);
box.add(node);
return node
}
/**
*
* @param {Node} node1 节点1
* @param {Node} node2 节点2
*/
export const returnLineFun = (node1, node2) => new twaver.Link(node1, node2)
/**
* 注册图片 用于设置图元的img setImage
* @param {String} url 图片 url
* @param {NetWork} svg NetWork对象
*/
export function returnRegisterImage(url, svg) {
var image = new Image();
image.src = url;
var views = arguments;
image.onload = function () {
// getImageName 获取到的图片name用做 node节点的显示img
twaver.Util.registerImage(getImageName(url), image, image.width, image.height, svg === true);
image.onload = null;
for (var i = 1; i < views.length; i++) {
var view = views[i];
if (view.invalidateElementUIs) {
view.invalidateElementUIs();
}
if (view.invalidateDisplay) {
view.invalidateDisplay();
}
}
};
// getImageName 获取到的图片name用做 node节点的显示img
const getImageName = (url) => {
var index = url.lastIndexOf('/');
var name = url;
if (index >= 0) {
name = url.substring(index + 1);
}
index = name.lastIndexOf('.');
if (index >= 0) {
name = name.substring(0, index);
}
return name;
}
}
/*
* @param {*} 告警的Id
* @param {*} 告警网元的Id
* @param {*} 告警级别
* @param {*} alarmBox 网元容器.getAlarmBox()
*/
export const returnAlarmFun = (alarmID, elementID, alarmSeverity, alarmBox) => {
var alarm = new twaver.Alarm(alarmID, elementID, alarmSeverity);
alarmBox.add(alarm);
}
/**
*
* @param {*} box 容器dataBox
* @param {*} layer layer对象
* @param {*} shape 图层的形状
* @param {*} x node点的坐标
* @param {*} y node点的坐标
* @param {*} width 图层的宽高
* @param {*} height 图层的宽高
* @param {*} fillColor 图层填充颜色
*/
/**
*
* shape
* circle 圆形
* diamond 菱形
* rectangle 长方形
*/
export const createNode = (box, layer, shape, x, y, width, height, fillColor, ) => {
var node = new twaver.Node();
node.setLayerId(layer.getId());
node.setName('layer-' + layer.getId());
node.setStyle('body.type', 'vector');
node.setStyle('vector.fill.alpha', 0.7);
node.setStyle('vector.shape', shape);
node.setSize(width, height);
node.setLocation(x, y);
node.setStyle('vector.fill.color', fillColor);
box.add(node); return node;
}
/**
*
* @param {*} table
* @param {*} name
* @param {*} propetyName
* @param {*} propertyType
* @param {*} valueType
*/
export const returnCreateColumn = (table, name, propetyName, propertyType, valueType) => {
var column = new twaver.Column(name);
column.setName(name);
column.setPropertyName(propetyName);
column.setPropertyType(propertyType);
if (valueType) {
column.setValueType(valueType);
}
table.getColumnBox().add(column);
return column;
}
export const returnRandomColor = () => {
var r = randomInt(255);
var g = randomInt(255);
var b = randomInt(255);
return '#' + formatNumber((r << 16) | (g << 8) | b);
}
function randomInt(n) {
return Math.floor(Math.random() * n);
}
function formatNumber(value) {
var result = value.toString(16);
while (result.length < 6) {
result = '0' + result; } return result;
}
学习参考：TWaver Documents
