使用Forge完成渲染
Forge是什么 为什么能够渲染出来rvt模型
- Forge是由Autodesk开发的一套云端开发平台和工具集。
- 在Forge平台中，有一个名为"Model Derivative"的服务，它可以将包括RVT（Revit）在内的多种BIM（Building Information Modeling）文件格式转换为可在Web上浏览和渲染的格式。
- 具体来说，"Model Derivative"服务可以将RVT（Revit）文件转换为SVF（Scalable Vector Graphics）格式。
- SVF是一种基于Web的轻量级3D模型表示格式，可以实现高性能的3D模型渲染和交互。通过将RVT文件转换为SVF格式，可以在Web端使用Forge提供的Viewer组件加载和展示RVT模型
Forge与Autodesk的关系
- Autodesk是一家设计软件公司，Forge可以视为Autodesk的云端扩展
渲染步骤：
首先要注册autodesk平台，并创建项目 获取自己的client_id与client_secret
如下图：
配置postman环境
下面我们演示通过postman上传模型到Forge云端，然后配置Forge的js渲染出来
post环境文件：
BIM.postman collection.json
{
"info": {
"_postman_id": "aedeb5db-ab5a-4b0e-ba31-d329f6ef66ba",
"name": "Beijing-Workshop",
"schema": "https://schema.getpostman.com/json/collection/v2.0.0/collection.json",
"_exporter_id": "24665034"
},
"item": [
{
"name": "1获取access token",
"event": [
{
"listen": "test",
"script": {
"exec": [
"var data = JSON.parse(responseBody);",
"postman.setEnvironmentVariable(\"access_token\", data.access_token);",
"postman.setEnvironmentVariable(\"expires_in\", data.expires_in);",
"postman.setEnvironmentVariable(\"token_type\", data.token_type);"
],
"type": "text/javascript"
}
}
],
"request": {
"method": "POST",
"header": [
{
"key": "Content-Type",
"value": "application/x-www-form-urlencoded"
}
],
"body": {
"mode": "urlencoded",
"urlencoded": [
{
"key": "client_id",
"value": "{{client_id}}",
"type": "text"
},
{
"key": "client_secret",
"value": "{{client_secret}}",
"type": "text"
},
{
"key": "grant_type",
"value": "client_credentials",
"type": "text"
},
{
"key": "scope",
"value": "data:read data:write bucket:create bucket:read",
"type": "text"
},
{
"key": "expires_in",
"value": "360000",
"type": "text"
}
]
},
"url": "{{base_domain}}/authentication/v1/authenticate"
},
"response": []
},
{
"name": "2创建的存储桶（bucket）",
"event": [
{
"listen": "prerequest",
"script": {
"exec": [
"if (request.data) {",
" var requestData = JSON.parse(request.data);",
" postman.setEnvironmentVariable(\"bucketKey\", requestData.bucketKey);",
" postman.setEnvironmentVariable(\"bucketPolicy\", requestData.policyKey);",
"}"
],
"type": "text/javascript"
}
}
],
"request": {
"method": "POST",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
},
{
"key": "Content-Type",
"value": "application/json"
}
],
"body": {
"mode": "raw",
"raw": "{\n \"bucketKey\":\"ac-persistent-bucket-test8\",\n \"policyKey\":\"persistent\"\n}"
},
"url": "{{base_domain}}/oss/v2/buckets"
},
"response": []
},
{
"name": "3 查看bucket是否创建成功",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": {
"raw": "{{base_domain}}/oss/v2/buckets?limit=10",
"host": [
"{{base_domain}}"
],
"path": [
"oss",
"v2",
"buckets"
],
"query": [
{
"key": "limit",
"value": "10"
}
]
}
},
"response": []
},
{
"name": "4往bucket里放置object模型",
"event": [
{
"listen": "test",
"script": {
"exec": [
"if (responseCode.code === 200) {",
" var data = JSON.parse(responseBody);",
" postman.setEnvironmentVariable(\"urn\", data.objectId);",
" postman.setEnvironmentVariable(\"urnBase64\", window.btoa(data.objectId));",
" postman.setEnvironmentVariable(\"file_location\", data.location);",
"}",
""
],
"type": "text/javascript"
}
}
],
"request": {
"method": "PUT",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"body": {
"mode": "file",
"file": {
"src": "/C:/Users/ac135/Desktop/rvtText/data/textOne.rvt"
}
},
"url": "{{base_domain}}/oss/v2/buckets/{{bucketKey}}/objects/aggregate-1.rvt"
},
"response": []
},
{
"name": "5检查对象模型是否成功上传",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": "{{base_domain}}/oss/v2/buckets/{{bucketKey}}/objects"
},
"response": []
},
{
"name": "6将模型在云端转换成SVF格式",
"event": [
{
"listen": "test",
"script": {
"exec": [
"var data = JSON.parse(responseBody);",
"",
"var setEnvVar = function (tar, src) {",
" if (!src) {",
" return;",
" }",
" postman.setEnvironmentVariable(tar, src);",
"}",
"",
"if (data) {",
" if (data.urn) {",
" setEnvVar(\"urnBase64\", data.urn);",
" }",
"}"
],
"type": "text/javascript"
}
}
],
"request": {
"method": "POST",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
},
{
"key": "Content-Type",
"value": "application/json"
},
{
"key": "x-ads-force",
"value": "true"
}
],
"body": {
"mode": "raw",
"raw": "{\n \"input\": {\n \"urn\": \"{{urnBase64}}\" \n },\n \"output\": {\n \"destination\": {\n \"region\": \"us\"\n },\n \"formats\": [\n {\n \"type\": \"svf\",\n \"views\":[\"2d\", \"3d\"]\n }]\n }\n}"
},
"url": "{{base_domain}}/modelderivative/v2/designdata/job"
},
"response": []
},
{
"name": "7检查模型是否转化完成",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
},
{
"key": "Accept",
"value": "application/vnd.api+json,application/json"
}
],
"url": "{{base_domain}}/modelderivative/v2/designdata/{{urnBase64}}/manifest"
},
"response": []
},
{
"name": "04-POST job",
"event": [
{
"listen": "test",
"script": {
"type": "text/javascript",
"exec": [
"var data = JSON.parse(responseBody);",
"",
"",
"if (data) {",
" if (data.urn) {",
" postman.setEnvironmentVariable(\"urnBase64\", data.urn);",
" }",
"}"
]
}
}
],
"request": {
"method": "POST",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
},
{
"key": "Content-Type",
"value": "application/json"
},
{
"key": "x-ads-force",
"value": "true"
}
],
"body": {
"mode": "raw",
"raw": "{\n \"input\": {\n \"urn\": \"{{urnBase64}}\" \n },\n \"output\": {\n \"destination\": {\n \"region\": \"us\"\n },\n \"formats\": [\n {\n \"type\": \"svf\",\n \"views\":[\"2d\", \"3d\"]\n }]\n }\n}"
},
"url": "{{base_domain}}/modelderivative/v2/designdata/job"
},
"response": []
},
{
"name": "06-GET metadata",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": "{{base_domain}}/modelderivative/v2/designdata/{{urnBase64}}/metadata"
},
"response": []
},
{
"name": "07-GET metadata/:guid",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
},
{
"key": "Accept-Encoding",
"value": "gzip"
}
],
"url": "{{base_domain}}/modelderivative/v2/designdata/{{urnBase64}}/metadata/{{metadata_guid}}"
},
"response": []
},
{
"name": "08-GET :urn/metadata/:guid/properties",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": "{{base_domain}}/modelderivative/v2/designdata/{{urnBase64}}/metadata/{{metadata_guid}}/properties"
},
"response": []
},
{
"name": "09-bucket details",
"event": [
{
"listen": "test",
"script": {
"type": "text/javascript",
"exec": [
"if (responseCode.code === 200 && responseBody) {",
" var data = JSON.parse(responseBody);",
" postman.setEnvironmentVariable(\"bucketKey\", data.bucketKey);",
"}"
]
}
}
],
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": "{{base_domain}}/oss/v2/buckets/{{bucketKey}}/details"
},
"response": []
},
{
"name": "12-GET formats",
"request": {
"method": "GET",
"header": [
{
"key": "Authorization",
"value": "Bearer {{access_token}}"
}
],
"url": "{{base_domain}}/modelderivative/v2/designdata/formats"
},
"response": []
}
]
}BIM.postman environment,.json
{
"id": "63cf71cf-bae6-411f-8e53-7319cf62fd9a",
"name": "Beijing-Workshop",
"values": [
{
"key": "base_domain",
"value": "https://developer.api.autodesk.com",
"type": "text",
"enabled": true
},
{
"key": "client_id",
"value": "xxxxxxxxx",
"type": "text",
"enabled": true
},
{
"key": "client_secret",
"value": "xxxxxxxxxxx",
"type": "text",
"enabled": true
},
{
"key": "urnBase64",
"value": "dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6YWMtcGVyc2lzdGVudC1idWNrZXQtdGVzdDMvYWdncmVnYXRlLTEucnZ0",
"type": "text",
"enabled": true
},
{
"key": "access_token",
"value": "eyJhbGciOiJIUzI1NiIsImtpZCI6Imp3dF9zeW1tZXRyaWNfa2V5In0.eyJjbGllbnRfaWQiOiJNbDhXdWJFdW52WVRaRk1za2xpQ200YnZCM0dkREVibyIsImV4cCI6MTUyNjExNDc3OCwic2NvcGUiOlsiZGF0YTpyZWFkIiwiZGF0YTp3cml0ZSIsImJ1Y2tldDpjcmVhdGUiLCJidWNrZXQ6cmVhZCJdLCJhdWQiOiJodHRwczovL2F1dG9kZXNrLmNvbS9hdWQvand0ZXhwNjAiLCJqdGkiOiIxMEV2aEVpcGhQMGszTm9FNkFOa2NnR1pKOVJUaUhDazA3dXhWMDFFc1R1M2twS2tVNnB4a2d5d3A5QXBFakpDIn0.prPXmCc9e1oxZcPFSEgPOlonHG8po16RdzDciborQlg",
"type": "text",
"enabled": true
},
{
"key": "guid",
"value": "57873878-6d98-b389-aa22-fead1053823f",
"type": "text",
"enabled": true
},
{
"key": "bucketKey",
"value": "xiaodong-persistent-bucket-test8",
"type": "text",
"enabled": true
},
{
"key": "guid",
"value": "e22cc916-cabd-4b97-9ccd-1ab1e613f707",
"type": "text",
"enabled": true
},
{
"key": "objectKey",
"value": "RevitNative.rvt",
"type": "text",
"enabled": true
},
{
"key": "expires_in",
"value": "3599",
"type": "text",
"enabled": true
},
{
"key": "token_type",
"value": "Bearer",
"type": "text",
"enabled": true
},
{
"key": "bucketPolicy",
"value": "persistent",
"type": "text",
"enabled": true
},
{
"key": "urn",
"value": "urn:adsk.objects:os.object:xiaodong-persistent-bucket-test8/workshop-2.rvt",
"type": "text",
"enabled": true
},
{
"key": "file_location",
"value": "https://developer.api.autodesk.com/oss/v2/buckets/xiaodong-persistent-bucket-test8/objects/workshop-2.rvt",
"type": "text",
"enabled": true
}
],
"_postman_variable_scope": "environment",
"_postman_exported_at": "2023-07-15T15:06:21.850Z",
"_postman_exported_using": "Postman/10.16.0"
}client_secret与client_id记住改成自己的，然后就开始用postman请求上传了
获取access token
是用于获取 Autodesk API 的访问令牌（access token）的认证
请求中包含必要的认证信息
- 客户端 ID（client_id）
- 客户端密钥（client_secret）
grant_type：授权类型，通常为 "client_credentials"（客户端凭据模式）scope：请求的权限范围，用空格分隔多个权限（如 "data:read data:write"）- expires_in：设置合适的过期时间，单位毫秒
响应结果：
创建 Autodesk Forge 中的存储桶（bucket）
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
bucketKey：存储桶的唯一标识符，它必须是全局唯一的。可以使用小写字母、数字、连字符-和下划线_来命名。长度应在3到128个字符之间。policyKey：存储桶的访问策略。默认为transient，表示存储桶中的对象在30天后过期；persistent，表示永久保存
响应结果：
查看bucket是否创建成功
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
请求可选的参数信息:
limit：指定要返回的存储桶数量的限制。例如，返回最多 10 个存储桶，默认为 10
响应结果：
往bucket里放置object模型
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
- 选择需要放置的rvt模型
- objectName：每个文件在存储桶中都有一个唯一的标识符
响应结果：
检查对象模型是否成功上传到 Autodesk Forge 存储桶（bucket）中
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
- bucketKey：查询的存储桶的实际标识符
响应结果：
将模型在云端转换成SVF格式
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
input：指定要转换的对象的 URN（Uniform Resource Name）。将 object_id 的 URN 作为输入。output：指定要生成的输出格式和文件类型。在这里，你可以指定 SVF 格式作为输出。例如，{"formats": [{"type": "svf", "views": ["2d", "3d"]}]}
备注：input中的urn是 objectId转化为Base64格式
响应结果：
检查模型是否转化完成
请求中包含必要的认证信息:
- Authorization：Authorization: Bearer {{access_token}}
- base64_urn：经过 Base64 编码的 URN
响应结果：
图一表示进度，图二代表成功
浏览器渲染：
html渲染模板 将accessToken与documentId替换掉就行
<!DOCTYPE html>
<html>
<head>
<title>Autodesk Forge: 3D Viewer App Sample</title>
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
<!-- Third Party package -->
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<!-- Autodesk Forge Viewer files (IMPORTANT) -->
<link rel="stylesheet" href="https://developer.api.autodesk.com/modelderivative/v2/viewers/7.51/style.min.css"
type="text/css">
<script src="https://developer.api.autodesk.com/modelderivative/v2/viewers/7.51/viewer3D.min.js"></script>
<style>
/** Just simple CSS styling to make this page a little nicer **/
body {
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<!-- The Viewer will be instantiated here -->
<div id="MyViewerDiv"></div>
<!-- Custom script -->
<script>
var viewer;
var options = {
env: 'AutodeskProduction',
api: 'derivativeV2', // TODO: for models uploaded to EMEA change this option to 'derivativeV2_EU'
// getAccessToken: getForgeToken
accessToken: 'eyJhbGciOiJSUzI1NiIsImtpZCI6IlU3c0dGRldUTzlBekNhSzBqZURRM2dQZXBURVdWN2VhIiwicGkuYXRtIjoiN3ozaCJ9.eyJzY29wZSI6WyJkYXRhOnJlYWQiLCJkYXRhOndyaXRlIiwiYnVja2V0OmNyZWF0ZSIsImJ1Y2tldDpyZWFkIl0sImNsaWVudF9pZCI6IkpCcldjc3p3RVZCQ0dNMm5sY1J6N0tIZXZTbXpYUXM0IiwiYXVkIjoiaHR0cHM6Ly9hdXRvZGVzay5jb20vYXVkL2Fqd3RleHA2MCIsImp0aSI6ImJjWXBRalcwekh5aTZyUEd3QU1kNjdjamlWS1Q2dDZIYXNqcjFmOXR4OUExeGhZY05JWkhINVlibkdDeHVaTWoiLCJleHAiOjE2ODk5MTI0ODB9.JdpIFQAmWmsGc-t2g3tpU677G1Y11RwF4ndTxbwSa4hE5tOjYtLsMK7pR-jGGWIHAEHUkScvDixQWFIUG_o5UWpwhAdH7r06126QhGFNk_Wf1d8OvoDknqdKt9aXns_1xvxucOdPs3VkJ8BWH6j65B3fxZ7GB5jub3zeF7sGuYd1zBL9FdAcQ5_uQUBpEXh8uP4yZ_Y3yDe_mnTx2OxTMyRXsHw7quWjtxXDQXweGq0xDn3ENayOTkYnsru3_GJmGXUE4b-Zl1csHENJyyegkDqrfbaLbMeKagCWxY-RnCikmg80iWDqOd6KvIejRbQdqpjdQWz4i3Qx6Wnj6Lzf4w'
};
// var documentId = 'urn:' + getUrlParameter('urn');
var documentId = 'urn:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6YWMtcGVyc2lzdGVudC1idWNrZXQtdGVzdDMvYWdncmVnYXRlLTEucnZ0'
// 初始化和加载文档的部分
Autodesk.Viewing.Initializer(options, function onInitialized() {
// Find the element where the 3d viewer will live.
var htmlElement = document.getElementById('MyViewerDiv');
if (htmlElement) {
// Create and start the viewer in that element
viewer = new Autodesk.Viewing.GuiViewer3D(htmlElement);
viewer.start();
// Load the document into the viewer.
Autodesk.Viewing.Document.load(documentId, onDocumentLoadSuccess, onDocumentLoadFailure);
$('.adsk-viewing-viewer').css('height', '80%')
$('.adsk-viewing-viewer').css('width', '42%')
}
});
/**
* 加载模型的回调函数
*/
function onDocumentLoadSuccess(doc) {
// Load the default viewable geometry into the viewer.
// Using the doc, we have access to the root BubbleNode,
// which references the root node of a graph that wraps each object from the Manifest JSON.
var viewable = doc.getRoot().getDefaultGeometry();
if (viewable) {
viewer.loadDocumentNode(doc, viewable).then(function (result) {
console.log('Viewable Loaded!');
}).catch(function (err) {
console.log('Viewable failed to load.');
console.log(err);
}
)
}
}
/**
* 文档加载失败时的回调函数
*/
function onDocumentLoadFailure(viewerErrorCode) {
console.error('onDocumentLoadFailure() - errorCode: ' + viewerErrorCode);
jQuery('#MyViewerDiv').html('<p>Translation in progress... Please try refreshing the page.</p>');
}
</script>
</body>
</html>效果图如下：
其他资源分享：
视频教程：通过Forge十分钟实现Web端3D模型浏览_哔哩哔哩_bilibili
有其他问题可以留言 或者私信
