Importing DXF Files to drawing.tool
You can import Drawing Exchange Format (DXF) files into drawing tool as primitive line elements, which will allow you to quickly and accurately create wall elements. To import a DXF file to drawing.tool, follow these steps:
Navigate to the catalog and select "DXF"
Select the DXF file from your computer
Select the units for the DXF import
Click to place the DXF anchor in your project
DXF files will import into drawing.tool as primitive lines, which you can use to snap wall elements to, or use the primitive lines directly to create primitive masses for conversion to building elements.

Tips and Tricks when using the DXF Import
Ensure import units are correct
For large projects, remove elements such as grid lines, room tags, and other annotation categories prior to importing in order to speed up the import process
Importing a DXF with closed loop, single-line walls will allow you to directly extrude the imported areas into building elements.
You can enable "Endpoint Snapping" to snap wall elements directly to the primitive lines generated by the import.
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Introduction to the drawing.tool interface