I have drawn a toposurface for the site and it cuts right through the building. How can I cut a hole in the topography to show a basement in section?
A20. Change your View to the Site plan. Select the “Massing and Site” tab, pick “Building Pad,” then in the Properties Palette type in the depth of the pad, sketch its boundaries and click on the green checkmark to finish. The default pad type is generic material and 1′-0″ thick. To make the pad correspond to your foundation material, select it and click on “Edit Type” on the Properties Palette. Then create a new Pad Type. Change the material to Gravel. There is no gravel material on the list. To create a gravel material, right-click on any of the materials in the list and select “Duplicate.” Type in Gravel in the name slot. Give it a cut pattern by selecting the … button to the right of the Cut Pattern pull down in the Materials dialogue box. Then pick the “New” button. Select the radio button Custom. Select the Import button. Browse for the AutoCAD pat file (Acad.pat), which is at C:\Documents and Settings\AT150\Application Data\Autodesk\ACD-A 2009\enu\Support. Pick the Gravel.pat
