5.在map中绘制一个面

绘制

绘制面

1. 修改Draw方法，设置type为Circle，同时修改geometryFunction为 ol.interaction.Draw.createBox(),以及freehandCondition为ol.events.condition.always
2. 修改加载Polygon的样式。

---

//面样式
if("Polygon" == type){
    styles = new ol.style.Style({ 
        stroke: new ol.style.Stroke({
            color: '#F00',
            width: 1
        })
    });
}


draw = new ol.interaction.Draw({
    source: _vectorSource,
    type: _drawOptions.type, 
    freehandCondition: ol.events.condition.always,
    geometryFunction: ol.interaction.Draw.createBox()
});

结合前面几张，综合展示如下图：

tx6.gif