AccuGrade GPS (CD700) Cross Section View Caterpillar


Cross Section View
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The Cross Section View is a graphical guidance screen that displays a Cross Section of the design surface drawn through the center of the blade. The Cross Section View is available for all types of designs. The information that is displayed in the Cross Section View varies according to the type of design that is loaded. In order to see the Cross Section View, press the Next Key from the Plan View.

The Cross Section View displays the following types of information:

Vertical alignment features:

  • Design surface

  • Working surface

  • Temporary working surface

Horizontal alignment features:

  • Roading alignments

  • Sloping surface alignments

  • 3D lines

  • the selected horizontal guidance line and offset

Guidance information:

  • Focus point

  • Vertical guidance point(s)

Note: Cross Section View will only display the blade of the machine when high accuracy positions are available. When high accuracy positions are not available, the symbol for the blade disappears from the screen, and the last valid Cross Section stays on the screen until high accuracy positions are restored.

The Cross Section is drawn through the center of the blade and at right angles to the direction of travel for the following types of designs:

  • SV Design

  • Triangular Irregular Network

  • Grid

  • 3D Lines

  • Sloping Surface

  • Level Surface

Illustration 1 shows a Cross Section View with a vertical offset of 0.15 m (0.5 ft)..




Illustration 1g01429271

Example of the Cross Section View

(1) Blade

(2) Cross Section Of Design Features

Note: The Cross Section View of the blade will decrease in width as you angle the blade away from the direction of travel when a machine is on one of the following designs: SV Design, Triangular Irregular Network, Grid, 3D Lines, Sloping Surface and Level Surface.

Table 1 explains the items that are shown in Illustration 1. These surfaces are available for all design types including road designs. For more information, Refer to Operation and Maintenance Manual, "Vertical Guidance Method - Set".

Table 1
Cross Section Surfaces    
Item     Description    
Design Surface     The surface defined by the design.
The design surface is displayed in the following colors:
Black, if the design surface is the working surface
Red, if the design surface is the working surface and the vertical offset is zero
Gray, if a working surface has been specified
The Cross Section is projected square to the machine's direction of travel from the center of the blade. The Cross Section extends up to "100 m" each side of the machine.    
Working Surface     An intermediate target surface. The working surface is displayed in the following colors:
Black, if the vertical offset is non-zero and a temporary working surface has been specified
Red, if the vertical offset is zero and there is no temporary working surface    
Temporary Working Surface     A surface vertically offset from the working surface. This is the surface that is being cut to or filled to on this run. The temporary working surface is displayed in red.    

For a road design, the Cross Section is calculated through the blade tip with focus and at right angles to the road's master alignment. Illustration 1 shows the Cross Section View of a road design, with the design surface selected as the working surface, and with no vertical offset applied.




Illustration 2g01429371

(7) Design Alignments

(8) Side Slope

Note: When a machine is on a road design, the Cross Section View of the blade will decrease in width as you turn the machine away from the direction of the master alignment.

Table 2 explains the items that are shown in Illustration 1.

Table 2
Cross Section Surfaces    
Item     Description    
Master alignment     The master alignment is a specific design alignment and is shown as a short thin black vertical line above and below the Cross Section.    
Design alignments     Design alignments mark changes in grade along the Cross Section. Design alignments are indicated by tick marks along the cross section.    
Side slope     At the edge of a road, side slopes are used to grade the ground between the design and the natural ground level. The side slopes are drawn to the edge of the screen.    

Information System: