方法1(根据指定的半径和中心点去绘制圆) var polygon1 = new L.Circle([34, 108], 120000, { color: 'red', //颜色 fillColor: '#f03', fillOpacity: 0.4, //透明度 }); 方法2(根据半径和中心点去构造polygon类型的圆) var radius = 2; //点集 var parts = []; //计算圆的边缘所有点 for (var i = 0; i < 360; i++) { var r
//结束绘制圆形之前,得到Polygon var pos = gPolyObj.Position; var bufferR = gPolyObj.Radius; var cVerticesArray = [-122.415025, 37.76059, 10, ]; var point = sgworld.Creator.GeometryCreator.CreatePointGeometry(cVerticesArray); point.X = pos.X; point.Y = pos.Y; po
include "stdafx.h" #include<iostream> #include<vector> #include<string> #include<math.h> #include<iomanip> using namespace std; int main() { float L, R; while (cin>>L>>R) { float len = 2 * 3.1415926*R; i
1.说明:在WPF中,文件下载时需要显示下载进度,由于系统自带的条型进度条比较占用空间,改用圆形的进度条,需要在DrawingVisual上呈现. 运行的效果如图: private Point GetPointOnCir(Point CenterPoint, double r, double angel) { Point p = new Point(); p.X = Math.Sin(angel * Math.PI / 180) * r + CenterPoint.X; p.Y = Center