You can change the way TPC draws a surface, which points it includes, its border, its breaklines and a lot more.
To change the shape or outline of a surface, you need to edit its border.
If a surface does not already have a border, you will need to add one from the Surface dialog.
You can edit topo points, turning them on or off and changing the way the contour is computed and drawn.
You can use the Edit Breakline command to manually edit breaklines or import breaklines f from traverses.
You can turn breaklines on or off. When you turn them off, the contour retains your breaklines but does not use them to generate the TIN. See Using Breaklines - Including Breaklines.
You can limit the topo points that are included in a surface by elevation. If you have some 'whacky' elevation points in your survey, this is a great way to exclude them from the surface. See Surface dialog.
Surfaces are not assigned to layers directly, but you can choose individual layers for major contours, minor contours, tin and breakline lines and labels, volume shading and slope shading. Each surface can have unique layers within a drawing or you can combine surface objects onto the same layers - even from different surfaces.
Before you edit a surface's layers, think about whether or not you even care about its layers. Considering that you can turn a surface on or off in a drawing you may not need to use layers at all.
If the survey requires you to send someone surface information on specific layers then you will need to edit the layers used by the surface. See Surface Layers.
Right click any contour line or label and choose Surface Settings. Now left click any of the following tabs to modify their settings.
Surfaces
Surface Objects
Surface Settings
Surface Borders
Editing Topo Points
Creating a TIN
Using Breaklines
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