Pitney-bowes MapInfo Vertical Mapper Manual de usuario Pagina 130

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Understanding Slope and Aspect
128 Vertical Mapper 3.7
Exploring the Slope and Aspect Dialog Box
You can use this dialog box to create a slope grid, an aspect grid, or both.
The Grid list Enables you to choose the list for the analysis.
The Create Slope Grid check box Enables you to create a slope grid.
The Slope Parameters section This section is available only when you enable the Create Slope
Grid check box:
The Description box Enables you to enter a description for the slope grid.
The File Name box Enables you to enter a new file name for the grid.
The Calculate as % Grade check box When this check box is enabled, the slope is calculated
as a percentage grade; when it is cleared, the slope is calculated in degrees.
The Create Aspect Grid check box Enables you to create an aspect grid.
The Aspect Parameters section This section is available only when you enable the Create Aspect
Grid check box:
The Description box Enables you to enter a description for the aspect grid.
The File Name box Enables you to enter a new file name for the grid.
The Calculate Aspect Relative to True North option When this option is chosen, north is set to
zero degrees azimuth and values progress in a clockwise direction.
The Calculate Aspect Relative to Y-Axis option When this option is chosen, “Y” is set at the top
of the map.
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