## Verify Geometry with EnergyPlus DXF Output ### Import DXF into SketchUp If you have Google SketchUp Pro, DXF/DWG import is already part of your application. If you have the free version of Google SketchUp 7, you can install the DXF/DWG import as a plugin that functions exactly as in SU7 Pro and SU6. You can find the DXF plugin on SketchUp's website. Once the plugin is installed, go to import under the file menu, and navigate to your DXF file. If you just installed the plugin, you will have to restart SketchUp. (Credit: David Goldwasser/NREL) Make sure your units are set correctly. If the DXF came from EnergyPlus, units are in meters. (Credit: David Goldwasser/NREL) The DXF looks very much like an OpenStudio model; the same color scheme is used in both. One difference is that the windows in the DXF do not cut through the base surface, but instead sit as a separate surface of their own. The base surface thus has no holes punched. Each zone of the DXF file also sits on its own layer. This can be help you isolate zones you want to review. (Credit: David Goldwasser/NREL) Because the EnergyPlus DXF is created by the EnergyPlus engine, it is a good output to look at for errors caused by coordinate systems, out of plane geometry, rotation of objects or zones, or other issues that may cause problems with your simulation. In the example used here, the DXF was placed exactly in line with the OpenStudio model, a split view was created to show the alignment, and the DXF was converted to wireframe. (Credit: David Goldwasser/NREL)
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