我们加载一个3DTileset 到地图里面了，怎样获取这个3DTileset 对象下面的feature呢。比如获取某个房屋的构件“窗子”
1，通过点击事件获取
viewer.screenSpaceEventHandler.setInputAction(function onLeftClick(
movement
) {
var pickedFeature= viewer.scene.pick(movement.position);
},
Cesium.ScreenSpaceEventType.LEFT_CLICK);
2，通过对3DTileset 对象添加监听和回调函数获取
function processContentFeatures(content, callback) {
var featuresLength = content.featuresLength;
for (var i = 0; i < featuresLength; ++i) {
var feature = content.getFeature(i);
callback(feature);
}
}
function processTileFeatures(tile, callback) {
var content = tile.content;
var innerContents = content.innerContents;
if (Cesium.defined(innerContents)) {
var length = innerContents.length;
for (var i = 0; i < length; ++i) {
processContentFeatures(innerContents[i], callback);
}
} else {
processContentFeatures(content, callback);
}
}
tileset.tileLoad.addEventListener(function (tile) {
processTileFeatures(tile, function(data){
console.log(data)
});
});
tileset.tileUnload.addEventListener(function (tile) {
processTileFeatures(tile, unloadFeature);
});
3,通过tileset tileVisible监听获取 feature
tileset.tileVisible.addEventListener(function(tile) {
var content = tile.content;
var featuresLength = content.featuresLength;
for (var i = 0; i < featuresLength; i++) {
let feature =content.getFeature(i)
}
});
4,通过 _selectedTiles对象获取被选中的featrue
var tiles=tileset._selectedTiles
for(let i=0;i<tiles.length;i++){
let tile = tiles[i];
var content = tile.content;
var featuresLength = content.featuresLength;
for (var j = 0; j < featuresLength; j++) {
let feature =content.getFeature(j) console.log( feature)
} }
5，从Cesium3DTileFeature里获取Cesium3DTileset
pickedFeature.tileset
