Delorme 6 用户手册

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页码 437
Profiling Linear Objects 
305 
Latitude*** 
The measure of a position on the earth's surface north or 
south of the equator in degrees, minutes, and seconds. 
Defined as the angle from the equator's horizontal plane 
perpendicular to the polar axis. Latitude is measured in 
degrees minutes and seconds. All lines of latitude are parallel 
and are often referred to as parallels.  
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.