Typescript 开放层3。如何向线条和标记添加标签
我正在创建Openlayers3地图。与给出的示例不同，我必须先为每个图层创建样式，然后才能知道特性是什么。我使用以下顺序：Typescript 开放层3。如何向线条和标记添加标签,typescript,openlayers-3,Typescript,Openlayers 3,我正在创建Openlayers3地图。与给出的示例不同，我必须先为每个图层创建样式，然后才能知道特性是什么。我使用以下顺序： 初始化地图 为每个组/ol.layer.vector设置样式 例如： this.addGroup('testPackages', { normalStyle: new ol.style.Style({ stroke: new ol.style.Stroke({ color: '#c407d3', width:
this.addGroup('testPackages', {
normalStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3, lineDash: [.1, 5] }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.1)' })
}),
hoverStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3, lineDash: [.1, 5] }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.4)' })
}),
selectedStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3 }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.4)' })
})
});
this.addGroup('cabinets', {
normalStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
}),
hoverStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
}),
selectedStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
})
})
drawLine(geoShape: any, assetId: string, group: IAssetGroup) { // vectorLine: ol.source.Vector, style?: ol.style.Style) {
// Transform the geometry for a map line-string.
const transformedGeometry = this.transformCoordinates(geoShape);
const lineString = new ol.geom.LineString(<any>transformedGeometry);
// Create the line-string feature.
const feature = new ol.Feature({
geometry: lineString,
id: assetId,
group: group
});
// Set the style on the feature?
if (!!group.normalStyle)
feature.setStyle(group.normalStyle);
// new lines
var myStyle = group.normalStyle;
myStyle = this.styleFunction(myStyle, feature);
feature.setStyle(myStyle);
// end
// Add the feature to the vector-set.
group.vector.addFeature(feature);
// Add to list of all features.
this.allFeatures.push(feature);
this.lookupFeatures[assetId] = feature;
}
this.addGroup('testPackages', {
normalStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3, lineDash: [.1, 5] }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.1)' })
}),
hoverStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3, lineDash: [.1, 5] }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.4)' })
}),
selectedStyle: new ol.style.Style({
stroke: new ol.style.Stroke({ color: '#c407d3', width: 3 }),
fill: new ol.style.Fill({ color: 'rgba(196, 7, 211, 0.4)' })
})
});
this.addGroup('cabinets', {
normalStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
}),
hoverStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
}),
selectedStyle: new ol.style.Style({
image: new ol.style.Icon(({
scale: 0.25,
anchor: [0.5, 1],
anchorXUnits: 'fraction',
anchorYUnits: 'fraction',
opacity: 1,
src: '/images/olMaps/house.png'
}))
})
})
drawLine(geoShape: any, assetId: string, group: IAssetGroup) { // vectorLine: ol.source.Vector, style?: ol.style.Style) {
// Transform the geometry for a map line-string.
const transformedGeometry = this.transformCoordinates(geoShape);
const lineString = new ol.geom.LineString(<any>transformedGeometry);
// Create the line-string feature.
const feature = new ol.Feature({
geometry: lineString,
id: assetId,
group: group
});
// Set the style on the feature?
if (!!group.normalStyle)
feature.setStyle(group.normalStyle);
// new lines
var myStyle = group.normalStyle;
myStyle = this.styleFunction(myStyle, feature);
feature.setStyle(myStyle);
// end
// Add the feature to the vector-set.
group.vector.addFeature(feature);
// Add to list of all features.
this.allFeatures.push(feature);
this.lookupFeatures[assetId] = feature;
}
drawMarker(geoLocation: [number, number], assetId: string, type: string, group: IAssetGroup) {
// Transform the geometry for a map point.
const coordinates = this.transformCoordinates(geoLocation);
const pointGeometry = new ol.geom.Point(<any>coordinates);
// Create the point feature.
const feature = new ol.Feature({
geometry: pointGeometry,
id: assetId,
group: group
});
// Set the style on the feature?
if (!!group.normalStyle)
feature.setStyle(group.normalStyle);
// Add the feature to the vector-set.
group.vector.addFeature(feature);
// Add to list of all features.
this.allFeatures.push(feature);
this.lookupFeatures[assetId] = feature;
}
drawMarker（地理位置：[编号，编号]，assetId:string，type:string，group:IAssetGroup）{
//变换贴图点的几何体。
常量坐标=此坐标（地理位置）；
常量点几何=新的ol.几何点（坐标）；
//创建点要素。
常量特征=新的ol.特征({
几何：点几何，
id:assetId，
组：组
});
//在功能上设置样式？
如果（！！group.normalStyle）
特征.setStyle（组.normalStyle）；
//将特征添加到向量集。
group.vector.addFeature（特征）；
//添加到所有功能的列表中。
此.allFeatures.push（功能）；
this.lookupFeatures[assetId]=特征；
}
然后如何为每个功能添加标签名称？Openlayers 3之间可能存在重复：将文本标签添加到功能和我的问题。我们正在使用完全不同的方法。您的答案就在那里，无论您采用何种方法，添加标签的方式都是相同的。drawLine和drawMarker中都有一条线用于检查样式：group.normalStyle。可能有办法在这里添加标签，但我不知道如何添加。好的。我已经在原来的帖子上添加了我的答案。