This sample demonstrates using Design Automation with Civil 3D support included in the AutoCAD engine. User can select a DWG file hosted on BIM 360 Document Manager (or A360) and view using the Forge Viewer.

Once the file is loaded, in the background, a Design Automation workitem will run a .NET plugin to extract additional Style information from the file. When ready, the information will be visible on the property panel.

This sample is based on the Learn Forge tutorials (View hubs section).

1. Forge Account: Learn how to create a Forge Account, activate subscription and create an app at this tutorial.
2. Visual Studio: Either Community (Windows) or Code (Windows, MacOS).
3. .NET Core basic knowledge with C#
4. ngrok: Routing tool, download here
5. Civil 3D 2020: required to compile changes into the plugin. Windows only.

For using this sample, you need an Autodesk developer credentials. Visit the Forge Developer Portal, sign up for an account, then create an app that uses Data Management and Model Derivative APIs. For this new app, use http://localhost:3000/api/forge/callback/oauth as Callback URL, although is not used on 2-legged flow. Finally take note of the Client ID and Client Secret.

Clone this project or download it. It's recommended to install GitHub desktop. To clone it via command line, use the following (Terminal on MacOSX/Linux, Git Shell on Windows):

git clone https://git.autodesk.com/goncala/bim360civil

Visual Studio (Windows):

Right-click on the project, then go to Debug. Adjust the settings as shown below.

Visual Sutdio Code (Windows, MacOS):

Open the folder, at the bottom-right, select Yes and Restore. This restores the packages (e.g. Autodesk.Forge) and creates the launch.json file. See Tips & Tricks for .NET Core on MacOS.

ngrok

Run ngrok http 3000 -host-header="localhost:3000" to create a tunnel to your local machine, then copy the address into the FORGE_WEBHOOK_URL environment variable.

Environment variables

At the .vscode\launch.json, find the env vars and add your Forge Client ID, Secret and callback URL. Also define the ASPNETCORE_URLS variable. The end result should be as shown below:

"env": {
    "ASPNETCORE_ENVIRONMENT": "Development",
    "ASPNETCORE_URLS" : "http://localhost:3000",
    "FORGE_CLIENT_ID": "your id here",
    "FORGE_CLIENT_SECRET": "your secret here",
    "FORGE_CALLBACK_URL": "http://localhost:3000/api/forge/callback/oauth",
    "FORGE_WEBHOOK_URL": "your ngrok address here: e.g. http://abcd1234.ngrok.io"
},

Civil 3D plugin

A compiled version of the Civil 3D plugin (.bundles) is included on the webapp module, under wwwroot/bundles folder. Any changes on these plugins will require to create a new .bundle, the Post-build event should create it.

Start the app.

Open http://localhost:3000 to start the app, select a DWG file. A pop-up will indicate when the style information is ready.

To deploy this application to Heroku, the Callback URL for Forge must use your .herokuapp.com address. After clicking on the button below, at the Heroku Create New App page, set your Client ID, Secret and Callback URL for Forge.

Documentation:

• BIM 360 API and App Provisioning
• Data Management API
• Viewer
• Design Automation

1. Cannot see my BIM 360 projects: Make sure to provision the Forge App Client ID within the BIM 360 Account, learn more here. This requires the Account Admin permission.

2. error setting certificate verify locations error: may happen on Windows, use the following: git config --global http.sslverify "false"

This sample is licensed under the terms of the MIT License. Please see the LICENSE file for full details.

Augusto Goncalves @augustomaia, Forge Partner Development