
Topo USA User Guide
308
Longitude***
The measure of a position on the surface of the earth east or west
of the Prime Meridian in degrees, minutes, and seconds. Defined as
the angle from the vertical plane running through the polar axis and
the prime meridian. Longitude is measured in degrees minutes and
seconds. All lines of longitude meet at the poles and are often
referred to as meridians.
*Calculated from the start of the profile to the current cursor position. If the cursor is not in the profile area, then
the value is calculated from the start of the profile to the end of the profile.
**This statistical information is available only if UTM/UPS, SPCS, USNG, or MGRS is selected as the coordinate
system in the Display tab of the Options dialog box.
***This statistical information is available only if a latitude/longitude format is selected as the coordinate system in
the Display tab of the Options dialog box.
Note For information on manually setting your minimum and maximum elevation, see
Manually Setting Minimum and Maximum Elevation
.
Manually Setting Minimum and Maximum Elevation
You can manually set a maximum or minimum elevation to display in your profile graph.
To Manually Adjust Minimum and Maximum Elevation
Use the following steps to manually adjust minimum and maximum elevation.
1.
Create a profile
.
2.
Click the More button
.
3.
To control the maximum height displayed on the profile graph, under Manual Scale,
select the Max Elev check box and type the maximum height in the text box.
This adjusts the top end of the vertical scale of the profile graph to not display
heights above the defined height.
4.
To control the minimum height displayed on the profile graph, under Manual Scale,
select the Min Elev check box and type the minimum height in the text box.
This adjusts the base level of the vertical scale of the profile graph to not display
heights below the height specified.
Note Distance displays in the units you set in the Options dialog box. For more
information, see
Setting Units of Measure Preferences
.
Clearing a Profile
Summary of Contents for Topo North America
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