OpenRoads Tip: Editing and Updating Terrains Created By Graphical Filters

In last months tip we discussed Importing Terrain from Graphics. However when using the Edit Terrain Model toolbar it reports “Not an Editable Terrain”.

What if we wanted to edit the graphics in the design file to update the Terrain Model instead of using the Edit Terrain Model toolbar.  The following steps will show you how to do that.


This example shows an incorrect elevation of a point created using the ‘Terrain Model By Graphical Filter’ command.


1. First use MicroStation tools to edit the graphics in the design file (element info. is one option).

2. Once the point has been edited, in Project Explorer go to the Civil Model tab and expand the Terrain Models listed.

3. Expand the Terrain Model you need to update.


4. Right click on the Graphical Filter Group and from the pop up menu select Update Terrain Model from Source.


Note: The graphics will be updated and your Terrain display will refresh.

Contact us if you need help developing new workflows, resources, or need training for OpenRoads.

Bob Mecham

Bob Mecham

Bob joined the training and consulting firm EnvisionCAD in 2000 and became a partner in June of 2002. He has specialized in the software MicroStation & InRoads from Bentley Systems, Inc. Mr. Mecham is an industry expert in the implementation, configuration, development, and customization of the two software applications MicroStation and InRoads. Bob instructs MicroStation classes ranging from fundamentals to advanced productivity. He has extensive experience using, implementing, and instructing both InRoads Survey and InRoads Site Design. Bob received his degree in Civil Engineering Technology from the Madison Area Technical College in 1992 and has over a decade of experience in the use, implementation, and management of software and CADD systems. He has worked for a wide range of organizations providing services from general survey and engineering services to specific applications such as landfills and site design.

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