在创建OpenLayer循环时遇到问题 [英] Getting problem while creating OpenLayer circle

问题描述

如何在插入式地图中绘制一个圆圈？我试过差异，但它不工作..请帮助我的代码。我已经使用了下面的代码..但是它的创建多边形

pre $ var p1 = new OpenLayers.Geometry.Point（439000,114000） ;
var p2 = new OpenLayers.Geometry.Point（440000，115000）;
var p3 = new OpenLayers.Geometry.Point（437000，116000）;
var p4 = new OpenLayers.Geometry.Point（436000，115000）;
var p5 = new OpenLayers.Geometry.Point（436500，113000）;
var points = [];
points.push（p1）;
points.push（p2）;
points.push（p3）;
points.push（p4）;
points.push（p5）;

var linearRing = new OpenLayers.Geometry.LinearRing（points）;
var polygonFeature = new OpenLayers.Feature.Vector（linearRing，null，style_green）;
vectorLayer.addFeatures（[polygonFeature]）

解决方案

我使用了 OpenLayers.Geometry。 Polygon.createRegularPolygon 来做到这一点：

  var circle = OpenLayers.Geometry.Polygon.createRegularPolygon（
新的OpenLayers.Geometry.Point（0,0），
 1，
 30 
）; 
 var feature = new OpenLayers.Feature.Vector（circle）; 
  

还有你的圈子。

how to draw a circle in openlayer map? i have tried in diff way, but its not working.. please help me with code. I have used the following code.. but its creating polygon

var p1 = new OpenLayers.Geometry.Point(439000, 114000);
var p2 = new OpenLayers.Geometry.Point(440000, 115000);
var p3 = new OpenLayers.Geometry.Point(437000, 116000);
var p4 = new OpenLayers.Geometry.Point(436000, 115000);
var p5 = new OpenLayers.Geometry.Point(436500, 113000);
var points = [];
points.push(p1);
points.push(p2);
points.push(p3);
points.push(p4);
points.push(p5);

var linearRing = new OpenLayers.Geometry.LinearRing(points);
var polygonFeature = new OpenLayers.Feature.Vector(linearRing, null, style_green);
vectorLayer.addFeatures([polygonFeature])

解决方案

I used OpenLayers.Geometry.Polygon.createRegularPolygon to do this:

var circle = OpenLayers.Geometry.Polygon.createRegularPolygon(
    new OpenLayers.Geometry.Point(0, 0),
    1,
    30
);
var feature = new OpenLayers.Feature.Vector(circle);

And there is your circle.

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