【发布时间】：2018-03-20 12:52:54
【问题描述】：
我对某些元素的材质变化有疑问
几何加载时：
_this.viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, () => {
changeModelMaterial()
});
...
const changeModelMaterial = () => {
const grey = new THREE.Color(0.5, 0.5, 0.5);
let dbIds = getDbIds()
changeAllElementsMaterial(grey)
setMaterialOfDbIds(dbIds)
}
我用来更改材料的代码：
const changeAllElementsMaterial = (color) => {
const fragmentList = _this.viewer.model.getFragmentList();
for (let materialId of fragmentList.materialids) {
if (fragmentList.materialmap[materialId]) {
fragmentList.materialmap[materialId].map = null
fragmentList.materialmap[materialId].color = color
fragmentList.materialmap[materialId].needsUpdate = true;
}
}
_this.viewer.impl.invalidate(true);
}
const setMaterialOfDbIds = (dbIds) => {
var color_diffuse = 0xAB00EE;
var color_specular = 0xEEABEE;
var colorM = new THREE.MeshPhongMaterial({
color: color_diffuse,
specular: color_specular
});
_this.viewer.impl.matman().addMaterial(
'ADN-Material-' +
"common color material", // or a GUID
colorM,
true);
for (let dbId of dbIds) {
_this.viewer.model.getData().instanceTree.enumNodeFragments(dbId, function (fragId) {
_this.viewer.model.getFragmentList().setMaterial(fragId, colorM);
});
}
_this.viewer.impl.invalidate(true);
}
它有效，因为我看到模型的材料发生了变化，但问题是材料在大约 1-2 秒后恢复为默认值。
在此之后，即使手动运行此代码，我也无法更改材料。
问题是为什么 Viewer 会在 2 秒后锁定素材更改，如何防止它
也许您可以告诉我，我可以通过材料更改做得更好，例如。也许比在 GEOMETRY_LOAD 之后运行我的代码更好。最好是在第一次渲染模型之前更改材质
........
提示：
当将事件从 GEOMETRY_LOADED_EVENT 更改为 OBJECT_TREE_CREATED_EVENT 时“有时”，但仅有时效果很好（材料一直到使用模型结束），但主要是当我在 OBJECT_TREE_CREATED 之后运行我的方法时，它不起作用（甚至无法通过运行它来工作）手动，材料以某种方式被锁定）。所以我怀疑问题出在 GEOMETRY_LOAD 和 OBJECT_TREE_CREATED 的时间之间
如果有任何帮助，我将不胜感激
===============================完整代码=============== ===============
index.html
<div id="main">
<div id="MyViewerDiv"></div>
<button id="open-nav-button" onClick="showDocInfo()">test</button>
</div>
<script src="https://developer.api.autodesk.com/derivativeservice/v2/viewers/three.min.js"></script>
<script src="https://developer.api.autodesk.com/derivativeservice/v2/viewers/viewer3D.min.js"></script>
<script type="text/javascript" src="lib/jquery.min.js"></script>
<script src="js/autodesk-viewer.js"></script>
<script src="js/extension/test-extension.js"></script>
<script>
const autodeskViewer = new AutodeskViewer()
const showDocInfo = () => {
autodeskViewer.showDocInfo()
}
</script>
autodesk-viewer.js
var AutodeskViewer = (function () {
function AutodeskViewer() {
var _this = this;
this.urn = 'urn:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6Zm9yZ2UtamF2YS1zYW1wbGUtYXBwLTFzcGduazdqcWpxdjhmYXV0YmNzd2R0cGdvN3VtNWY1L1BPQy1Gb3JnZS1JVCUyMDIwMTclMjBSdWNoXzEwMDUxNy5ud2Q';
this.initializeViewer = function (containerId, documentId) {
_this.viewerApp = new Autodesk.Viewing.ViewingApplication(containerId);
var config = {
extensions: ['TestExtension']
};
_this.viewerApp.registerViewer(_this.viewerApp.k3D, Autodesk.Viewing.Private.GuiViewer3D, config);
_this.viewerApp.loadDocument(documentId, _this.onDocumentLoadSuccess, _this.onDocumentLoadFailure);
}
this.onDocumentLoadSuccess = function (doc) {
const viewables = _this.viewerApp.bubble.search(av.BubbleNode.MODEL_NODE);
if (viewables.length === 0) {
return;
}
_this.viewerApp.selectItem(viewables[0].data, _this.onItemLoadSuccess, _this.onItemLoadFail);
_this.viewer3d = _this.viewerApp.getCurrentViewer();
}
this.onDocumentLoadFailure = (viewerErrorCode) => {}
this.onItemLoadSuccess = (viewer) => {
_this.viewer = viewer
}
this.onItemLoadFail = (errorCode) => {}
this.initialize = () => {
var options = {
env: 'AutodeskProduction',
getAccessToken: _this.getToken,
refreshToken: _this.getToken
};
Autodesk.Viewing.Initializer(options, _this.initCallback);
};
this.initCallback = function () {
_this.initializeViewer('MyViewerDiv', _this.urn, '3d');
};
this.getToken = function (onGetAccessToken) {
$.get("forge/oauth/token")
.done(function (data) {
token = data
onGetAccessToken(token, 60 * 60);
})
.fail(function (error) {
console.log('ERROR', error);
});
};
this.showDocInfo = function () {};
this.initialize();
}
return AutodeskViewer;
}());
test-extension.js
var _self;
var _viewer;
var _tempValue = 0;
function TestExtension(viewer, options) {
Autodesk.Viewing.Extension.call(this, viewer, options);
_self = this;
_viewer = viewer;
}
const changeModelMaterial = () => {
// _tempValue++;
// if (_tempValue == 2) {
const elements = [4340, 4342, 4344, 4346, 4348, 4367, 4371, 4375, 4380, 4452, 4468, 4488, 4503, 4517, 4520, 4522, 4524, 4526, 4528, 4530]
changeAllElementsMaterial(new THREE.Color(0.5, 0.5, 0.5))
setMaterialOfDbIds(elements)
_tempValue = 0
// }
}
const changeAllElementsMaterial = (color) => {
var fragmentList = _viewer.model.getFragmentList();
for (let materialId of fragmentList.materialids) {
if (fragmentList.materialmap[materialId]) {
fragmentList.materialmap[materialId].map = null
fragmentList.materialmap[materialId].color = color
fragmentList.materialmap[materialId].needsUpdate = true;
}
}
_viewer.impl.invalidate(true);
}
const setMaterialOfDbIds = (dbIds) => {
var colorM = new THREE.MeshPhongMaterial({
color: new THREE.Color(0xAB00EE)
});
for (let dbId of dbIds) {
_viewer.model.getData().instanceTree.enumNodeFragments(dbId, function (fragId) {
_viewer.model.getFragmentList().setMaterial(fragId, colorM);
});
}
_viewer.impl.invalidate(true);
}
TestExtension.prototype = Object.create(Autodesk.Viewing.Extension.prototype);
TestExtension.prototype.constructor = TestExtension;
TestExtension.prototype.load = function () {
_viewer.addEventListener(Autodesk.Viewing.OBJECT_TREE_CREATED_EVENT, changeModelMaterial)
// _viewer.addEventListener(Autodesk.Viewing.GEOMETRY_LOADED_EVENT, changeModelMaterial)
return true
};
TestExtension.prototype.unload = function () {
return true
};
Autodesk.Viewing.theExtensionManager.registerExtension('TestExtension', TestExtension);
【问题讨论】：
标签： autodesk-forge autodesk-viewer