Posted: Sun Dec 13, 2009 2:04 am
The Gmap4 map viewer now has a detailed help file. http://www.mappingsupport.com/p/gmap4_help.pdf
Please take a look at the Quick Start section to get an idea of the kinds of things Gmap4 can help you do.
The topographic maps available via Gmap4 cover the USA at 1:24,000 (same as 7.5? quad) and Canada at 1:50,000. Below is a link to a map of the USA-Canada. Just zoom in on something that you want to see and when you find it then click the MyTopo button in order to see a detailed topographic map for that spot:
http://www.mappingsupport.com/p/gmap4.php?ll=36.385913,-95.185547&z=4&t=m
You can look at anything if you know the latitude/longitude.
Mt. Rushmore:
http://www.mappingsupport.com/p/gmap4.php?ll=43.877015,-103.45087
Yellowstone - Old Faithful:
http://www.mappingsupport.com/p/gmap4.php?ll=44.461721,-110.832396&z=14
What - You mean you don’t know the latitude/longitude for Pocket Lake, in the Eagle Cap Wilderness of Oregon? (A very neat spot BTW) Not a problem. Search using POGM (Plain Old Google Maps). When you find that which you seek:
Point to it ==> Right click ==> What’s Here? ==> Copy the latitude/longitude from the map search window. Then paste that latitude/longitude onto the end of a command to launch gmap4:
http://www.mappingsupport.com/p/gmap4.php?ll=45.174716,-117.274332
These topos are from the MyTopo (http://www.mytopo.com/) company. They scan the paper topographic maps and make their money by selling custom topo maps that you design. While there are not many websites (yet) displaying topographic maps from MyTopo, there are numerous sites that display topographic maps from Terraserver. If you are curious, here is how you can compare the onscreen quality:
1. Make your browser full screen.
2. In one browser tab, display the MyTopo Yellowstone - Old Faithful map from the above link.
3. Open another browser tab and go to http://mapper.acme.com/.
4. Enter these coords 45.174716,-117.274332 in the ACME search window and click Find.
5. Adjust the ACME zoom control so the tab is on the 4th crossbar from the top.
6. Click the ACME ‘Topo’ button to display the Terraserver maps.
The MyTopo and Terraserver maps should now have the same center and be the same scale. You can flip back and forth between your two browser tabs and compare the quality.
Please take a look at the Quick Start section to get an idea of the kinds of things Gmap4 can help you do.
The topographic maps available via Gmap4 cover the USA at 1:24,000 (same as 7.5? quad) and Canada at 1:50,000. Below is a link to a map of the USA-Canada. Just zoom in on something that you want to see and when you find it then click the MyTopo button in order to see a detailed topographic map for that spot:
http://www.mappingsupport.com/p/gmap4.php?ll=36.385913,-95.185547&z=4&t=m
You can look at anything if you know the latitude/longitude.
Mt. Rushmore:
http://www.mappingsupport.com/p/gmap4.php?ll=43.877015,-103.45087
Yellowstone - Old Faithful:
http://www.mappingsupport.com/p/gmap4.php?ll=44.461721,-110.832396&z=14
What - You mean you don’t know the latitude/longitude for Pocket Lake, in the Eagle Cap Wilderness of Oregon? (A very neat spot BTW) Not a problem. Search using POGM (Plain Old Google Maps). When you find that which you seek:
Point to it ==> Right click ==> What’s Here? ==> Copy the latitude/longitude from the map search window. Then paste that latitude/longitude onto the end of a command to launch gmap4:
http://www.mappingsupport.com/p/gmap4.php?ll=45.174716,-117.274332
These topos are from the MyTopo (http://www.mytopo.com/) company. They scan the paper topographic maps and make their money by selling custom topo maps that you design. While there are not many websites (yet) displaying topographic maps from MyTopo, there are numerous sites that display topographic maps from Terraserver. If you are curious, here is how you can compare the onscreen quality:
1. Make your browser full screen.
2. In one browser tab, display the MyTopo Yellowstone - Old Faithful map from the above link.
3. Open another browser tab and go to http://mapper.acme.com/.
4. Enter these coords 45.174716,-117.274332 in the ACME search window and click Find.
5. Adjust the ACME zoom control so the tab is on the 4th crossbar from the top.
6. Click the ACME ‘Topo’ button to display the Terraserver maps.
The MyTopo and Terraserver maps should now have the same center and be the same scale. You can flip back and forth between your two browser tabs and compare the quality.