Creating A Point Group; Chapter 5 Building A Survey Quality Surface; Lesson: Building Surfaces From Survey Data; Creating A Point Group To Be Used As Surface Data - Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD User Manual

5.1.1

Creating a Point Group to Be Used As Surface Data

Before you create the surface you need to create a Point Group that will be used to select only the points that
you want to use for the surface data. Points that should not be included in the surface should not be included
in the point group. Points for utility potholes or points that are part of the project for horizontal control and do
not have accurate surface elevations are examples of points that should not be included in this group.
1. Continue working in the drawing Design.dwg.
This drawing contains the Points, Alignment, Parcels, and Surface from the previous chapters. Currently only
the parcel lines and labels are displayed.
2. On the Prospector tab of the Toolspace, right-click on Point Groups and select ⇒ New.
3. Enter Topo for the Name.
4. Select the Raw Desc Matching tab in the Point Group Properties dialog box.
5. Select the description keys AEC, DT, DWYRK, DWYAC, GND, LP, TOE, and TOP.
6. Click <<OK>> to create the Point Group.

Lesson: Building Surfaces from Survey Data

Chapter: Building a Survey Quality Surface
161