如何获取 Autodesk Forge 中的所有 DB-ID
How to get all the DB-IDs in Autodesk Forge
我需要从 Autodesk forge 模型中获取所有 DB-Id。我引用了 https://forge.autodesk.com/cloud_and_mobile/2015/12/select-all-elements-in-the-viewer-with-view-and-data-api-with-javascript.html
中的代码
我在自己的扩展里也试过了,代码如下
AutodeskNamespace("Autodesk.ADN.Viewing.Extension");
Autodesk.ADN.Viewing.Extension.Color = function(viewer, options) {
Autodesk.Viewing.Extension.call(this, viewer, options);
var _self = this;
var _viewer = viewer;
var instanceTree = viewer.model.getData().instanceTree;
var rootId = this.rootId = instanceTree.getRootId();
_self.load = function() {
getgetAlldbIds(rootId);
};
function getAlldbIds(rootId) {
var alldbId = [];
if (!rootId) {
return alldbId;
}
var queue = [];
queue.push(rootId);
while (queue.length > 0) {
var node = queue.shift();
alldbId.push(node);
instanceTree.enumNodeChildren(node, function(childrenIds) {
queue.push(childrenIds);
});
}
console.log(alldbId);
}
};
但是我在开发者工具中遇到了一个错误 cannot read property 'getData' of null
你认为我哪里出错了。提前致谢。
问题一定是模型没有完全加载,所以您应该等待该事件 (Autodesk.Viewing.GEOMETRY_LOADED_EVENT)。最好也等待对象树创建事件 (Autodesk.Viewing.OBJECT_TREE_CREATED_EVENT) - 请参阅此处的讨论:
顺便说一下,现在有一种更简单的方法来获取所有的 dbId:Get all database id's in the model
我需要从 Autodesk forge 模型中获取所有 DB-Id。我引用了 https://forge.autodesk.com/cloud_and_mobile/2015/12/select-all-elements-in-the-viewer-with-view-and-data-api-with-javascript.html
中的代码我在自己的扩展里也试过了,代码如下
AutodeskNamespace("Autodesk.ADN.Viewing.Extension");
Autodesk.ADN.Viewing.Extension.Color = function(viewer, options) {
Autodesk.Viewing.Extension.call(this, viewer, options);
var _self = this;
var _viewer = viewer;
var instanceTree = viewer.model.getData().instanceTree;
var rootId = this.rootId = instanceTree.getRootId();
_self.load = function() {
getgetAlldbIds(rootId);
};
function getAlldbIds(rootId) {
var alldbId = [];
if (!rootId) {
return alldbId;
}
var queue = [];
queue.push(rootId);
while (queue.length > 0) {
var node = queue.shift();
alldbId.push(node);
instanceTree.enumNodeChildren(node, function(childrenIds) {
queue.push(childrenIds);
});
}
console.log(alldbId);
}
};
但是我在开发者工具中遇到了一个错误 cannot read property 'getData' of null
你认为我哪里出错了。提前致谢。
问题一定是模型没有完全加载,所以您应该等待该事件 (Autodesk.Viewing.GEOMETRY_LOADED_EVENT)。最好也等待对象树创建事件 (Autodesk.Viewing.OBJECT_TREE_CREATED_EVENT) - 请参阅此处的讨论:
顺便说一下,现在有一种更简单的方法来获取所有的 dbId:Get all database id's in the model