在 Openlayers3 中突出显示 lineString 或 point

Highlight the lineString or point in Openlayers3

在我的地图应用程序中,当鼠标悬停在多边形上或 select 它时,我可以高亮显示多边形,但是点和线串不能高亮显示,以为我在脚本中添加了样式。

我在网上找到了一些使用ol.featureOverlay的工作示例,但是现在在新的openlayers3中,ol.featureOverlay被从库中删除了,有高手知道如何解决吗?

让您的互动阅读您 function 的样式:

var hoverInteraction = new ol.interaction.Select({
  condition: ol.events.condition.pointerMove,
  style: geometryStyle
});

你的函数将如上所示:

function geometryStyle(feature){
  var
    style = [],
    geometry_type = feature.getGeometry().getType(),
    white = [255, 255, 255, 1],
    blue = [0, 153, 255, 1],
    width = 6
  ;

  style['LineString'] = [
    new ol.style.Style({
      stroke: new ol.style.Stroke({
        color: white, width: width + 2
      })
    }),
    new ol.style.Style({
      stroke: new ol.style.Stroke({
        color: blue, width: width
      })
    })
  ],
  style['Polygon'] = [
    new ol.style.Style({
      fill: new ol.style.Fill({ color: [255, 255, 255, 0.5] })
    }),
    new ol.style.Style({
      stroke: new ol.style.Stroke({
        color: white, width: 3.5
      })
    }),
    new ol.style.Style({
      stroke: new ol.style.Stroke({
        color: blue, width: 2.5
      })
    })
  ],
  style['Point'] = [
    new ol.style.Style({
      image: new ol.style.Circle({
        radius: width * 2,
        fill: new ol.style.Fill({color: blue}),
        stroke: new ol.style.Stroke({
          color: white, width: width / 2
        })
      })
    })
  ];

  return style[geometry_type];
}

http://jsfiddle.net/jonataswalker/prx41egk/