 Search the Knowledgebase |
 Browse by Category |
|
|
|
| How can I set the scale so that it is 1" = 8000 feet? |
| User Opinions |
100%
0%
|
|
Thank you for rating this answer.
|
What to enter for the scale entirely depends on what your map X and Y units are. For example:
If your map is in units of feet, then you would simply type in 8000. So 1.0 in = 8000 Map units.
If your map is in units of meters, then you need to do some math. 8000 feet is 2438 meters. So 1"=8000' is the same as 1"=2438 meters, and you would enter 1.0 in = 2438 map units for your scale.
If your map is in units of lat/long, then you need to do some slightly more complicated math. You will need to convert 8000 feet to latitude and longitude.
1 degree of latitude is about 68.703 miles (362751 feet). So 8000 feet is about 0.02205° latitude. Insert this for the Y scale (1.0 in = 0.02205 Map units for the Y Scale).
1 degree of longitude is 69.172 miles * cos(latitude). So find the latitude of the center of your map and insert it in the equation to find how much 1° of longitude is for your map. So if your central latitude value is 39.5°:
1° longitude = 69.172 mi * cos (39.5)
= 365228.16 feet * 0.77162
= 281819 feet
8000 feet is therefore 0.02839° longitude (at 39.5° latitude). Insert this for the X scale (1.0 in = 0.02839 Map units for the X Scale).
|
| Visitor Comments |
|
No visitor comments posted. Post a comment
|
| Attachments |
|
No attachments were found.
|
Print this page
Email this page
Post a comment