Before reading this post, you should probably check out:
- Getting Started with InfraWorks - Part 1: Building the Existing Terrain
- Getting Started with InfraWorks - Part 2: Draping Imagery
In Part 1 we acquired terrain data and aerial photos via the National Map Viewer and built a terrain model. In Part 2, we draped the aerial imagery over the terrain model giving us a much better sense of what was where. Now that we can clearly see the project area that we would like to focus on, it's time to set the Model Extent so that the project has less to think about and performs much snappier.
To begin, I'll click the Manage icon on the InfraWorks core toolbar, and then click Model Settings.
That brings up the Model Properties dialog which is currently has the model extent set to the default of "Use Entire Model".
Clicking is a little different in InfraWorks if you're used to an AutoCAD-based environment like Civil 3D. To make the box, I'll single-click the first point and then double-click the second point. Don't click and drag like you would to make a window in AutoCAD.
I click OK on the Model Settings dialog box and I'm good to go.
Now my model only includes the area I selected, regardless of the area that any source data covers. And I'm noticing an immediate improvement in performance because I'm giving InfraWorks permission to think about less of my data - in this case a lot less.
Now that my model extent is defined I can lean back and enjoy those animated clouds. (they look 100 times better in InfraWorks than they do in the GIF below, but I just had to do it)
- Getting Started with InfraWorks (2015 version) - Part 1: Building the Existing Terrain
- Getting Started with InfraWorks (2015 version) - Part 2: Draping Imagery
- Getting Started with InfraWorks (2015 version) - Part 3: Setting the Model Extent
- Getting Started with InfraWorks (2015 version) - Part 4: Adding a Road
- Getting Started with InfraWorks (2015 version) - Part 5: Sharing with the World