Page 1203 - Chief Architect Reference Manual
P. 1203

Chief Architect X10 Reference Manual



                        In a plan with a foundation present, the   not been modified, and you find that this
                        Subfloor Height Above Terrain distance will   unnecessarily slows down the generation of
                        equal the exact terrain elevation at the   3D views, consider turning this behavior off
                        building footprint center point, plus 6” (150   in the 3D View Defaults dialog. See “3D
                        mm), plus the thickness of the floor platform.  View Defaults Dialog” on page 1046.
                        • In a plan with no elevation data, the ter-
                           rain is assumed to be at sea level and this     Clear Terrain
                           Subfloor Height Above Terrain distance    To remove the generated terrain
                           is 6” (150 mm) plus the thickness of the   contours, select Terrain> Clear
                           floor platform plus any treated sill plates   Terrain. When the terrain is cleared,
                           when a foundation is present.        contours do not display in 3D and contour
                        • In a plan with flat terrain at 100’ (30 m)   lines do not display in floor plan view.
                           and a foundation present, the Subfloor
                           Height Above Terrain distance is 100’ 6”   Clear Terrain    does not remove the
                           (30.468 m) plus the thickness of the floor   terrain perimeter, elevation data, or terrain
                           platform.                            features from the model. Rather it deletes all
                                                                program-generated 2D contour lines and 3D
                        Once terrain has been built, the Subfloor   contours.
                        Height Above Terrain distance is stated in
                        the Terrain Specification dialog. You can   The Terrain Perimeter has a variety of
                        specify a custom value to produce a daylight   editable properties, including many that
                        or walkout basement. See “General Panel”   affect the appearance of the terrain in 2D and
                        on page 1216.                           3D views.  See “Terrain Specification
                                                                Dialog” on page 1216.
                         Note: When no foundation has been built, the
                         distance from Floor 1 to the terrain is 12” (320  Terrain Surface Triangles
                         mm).
                                                                Chief Architect generates 3D terrain surfaces
                                   Build Terrain                by dividing them into triangles. The size of
                                                                the triangles determines how detailed
                             Select Terrain> Build Terrain to   contour lines and terrain surfaces in the 3D
                             generate the terrain surface based on
                        the provided elevation data. Build Terrain   model can be. You can specify triangle size
                                                                in the Terrain Perimeter Specification
                        also updates the Building Pad Elevation   dialog. See “General Panel” on page 1216.
                        value in the Terrain Specification dialog.
                        See “Building the Terrain” on page 1214.  Increasing the triangle count decreases
                                                                triangle size, yielding more detailed contour
                              Auto Rebuild Terrain              lines and a better 3D approximation of the
                                                                terrain. Smaller triangles demand longer
                        By default, terrain will automatically build   terrain generation time and increased
                        any time a 3D view is created, ensuring that   memory requirements. If you select a large
                        the terrain in the view is up-to-date. If your
                        terrain is large and/or highly detailed and has



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