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网页CAD的mxdraw库实现Autocad中的圆( 三 )

cad


import { MrxDbgUiPrPoint, MxFun, McEdGetPointWorldDrawObject, } from "mxdraw"
const drawCircleAtThreePoints = async () => {
const getPoint = new MrxDbgUiPrPoint();
const circle = new MxDbCircle();
let points = [] as unknown as [THREE.Vector3, THREE.Vector3, THREE.Vector3]
points.push(await getPoint.go())
getPoint.setUserDraw((currentPoint, pWorldDraw) => {
pWorldDraw.drawLine(points[0], currentPoint)
})
points.push(await getPoint.go())
getPoint.setUserDraw(
(
currentPoint: THREE.Vector3,
pWorldDraw: McEdGetPointWorldDrawObject
)=> {
circle.center = threePointsToDetermineTheCenterOfTheCircle([points[0], points[1], currentPoint])
circle.radius = circle.center.distanceTo(currentPoint)
pWorldDraw.drawCustomEntity(circle);
}
);
points.push(await getPoint.go())
circle.center = threePointsToDetermineTheCenterOfTheCircle(points);
circle.radius = circle.center.distanceTo(points[0]);
MxFun.getCurrentDraw().addMxEntity(circle);
}
drawCircleAtThreePoints()
效果图如下:
网页CAD的mxdraw库实现Autocad中的圆

文章插图

网页CAD的mxdraw库实现Autocad中的圆

文章插图
Demo源码：
https://gitee.com/mxcadx/mxdraw-article/tree/master/mxdraw%E5%BA%93%E5%AE%9E%E7%8E%B0autocad%E4%B8%AD%E7%9A%84%E5%9C%86




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