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MJ RP  General iGage Information

 

V7 Elevation Tools

V7 products include elevation models that extend All Topo's usefulness to a third dimension!

  • Elevation at Cursor. more...
  • Path profiles between two points or along an arbitrary traced path. more...
  • Elevation ranking: finds and ranks high/low elevations. more...
  • Line-of-Sight Tool: quickly determines what you can see from a point, includes source and destination heights. more...
  • Elevation data can be exported to standard DEM or XYZ files. more...
  • Beautiful, 24-bit hillshading and false elevation map coloring. more...

All Topo's elevation database is the full resolution (0.1 meter; 1 arc-second spacing continental US+Hawaii, 2 arc-second Alaska) 'National Elevation Database' (NED) terrain model.

Any profile may be exported as a graphic image to the clipboard, a file or printer.

 

Elevation at Cursor / Waypoint

As the cursor moves over the map surface, the elevation under the cursor is displayed:

You can choose to display the elevation in Feet, Meters or Survey Feet.

You can also add elevation tags to waypoint descriptions and notes. These tags are evaluated when the image is drawn or waypoint lists are listed and exported. Adding %Elevf% to a waypoint description:

displays:

Path profiles between two points or along an arbitrary traced path

Any route connected features can be profiled by right-mouse-clicking near any of the connected points and choosing 'Build Profile...':

builds this profile:

Right-click near the base point of any path built with the draw pencil:

choose 'Build Profile...' to see an elevation profile along the path:

Change the profile's properties to control trace colors, grid span, titles and earth curvature display.

Elevation ranking: finds and ranks high/low elevations

Use the 'Elevation Rank' tool to quickly find the highest point on a map:

All Topo will quickly search and display the highest or lowest points on a  map. You specify how many points you want to find, and how far they must be apart. This is a handy tool for quickly finding suitable repeater locations.

Line-of-Sight Tool

All Topo will quickly compute line-of-sight coverage from a single base point to all other points on a map. You can specify the height above ground level for the rover and two heights at the base. All Topo shows rover locations that can see either base heights with green dots, purple dots designate rover locations that can see only the high base height; red dots show rover locations that can not see either base elevation.

To compute coverage select the main menu option: "Tools: Elev Tools...: Line-of-Sight (tab)"; enter the controlling information; finally press the 'Begin Computations...' button:

This tool is very handy for estimating radio coverage (line of sight only, the K factor is not programmable), areas of concern for visual corridors:

elevlos2.gif (183683 bytes) < Click to view map

   

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Voice: +1 801 412-0011 Toll Free: +1 888 450-4922
Fax: +1 801 412-0022 Toll Free Fax: +1 888 450-4983