问题描述
由于某种原因,我在viewer.isLayerVisible(layerNode)上总是错误的。 我遵循了本教程https://forge.autodesk.com/blog/toggle-sheet-layer-visibility 我在LAYER_VISIBILITY_CHANGED_EVENT上有事件处理程序,这是我在打字稿中的代码片段:
viewer.addEventListener(Autodesk.Viewing.LAYER_VISIBILITY_CHANGED_EVENT,(e) => {
var root = viewer.model["myData"].layersRoot; //getLayersRoot() is not a function for some reason
var overlayLayer = viewer["getSelectedLayer"]();
if (viewer["layerRoot"] != undefined) {
var layerNode = root.children.filter((e) => { return e.name === overlayLayer })
var isLayerVisible = viewer.isLayerVisible(layerNode);
//show layer
if (isLayerVisible) {
viewer.impl.addOverlay("Edit2D",viewer["savedPoints"].overlayLayer)
}
//hide layer
else {
viewer.impl.removeOverlayScene("Edit2D")
}
}
});
关闭图层管理器的某些图层后,我也将viewer.areAllVisible()设置为true。
Forge查看器版本为7。*
您有什么建议吗?谢谢!
解决方法
我发现您可以从indexToLayer查看器属性访问可见层和可见层
var visibleLayers = Array.from(viewer.impl.layers.indexToLayer.filter(e => e != null && e.visible));