Portal Details
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Overview (PDF)
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The Technology (PDF)
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The Contributors (PDF)
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Help Categories
The Tool Bar
Using the Mouse
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Mouse wheel |
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Scroll the mouse wheel backward or down to zoom out. Each wheel click will zoom the map by about 50 percent in width and height. |
Shift+Left mouse |
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Hold the Shift key down, then hold the left mouse button down and drag to draw a rectangle. The map will zoom in to the area of the rectangle. |
Click mouse wheel |
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Scroll the mouse wheel forward or up to zoom in. Each wheel click will zoom the map by about 50 percent in width and height. |
Zoom In |
Shift & +sign |
Each click of the plus key (on numeric keypad only) zooms in the map by a fixed amount. Hold the Shift key down and press the Plus key. |
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Zoom Out |
Shift & - sign |
Each click of the minus key (on numeric keypad only) zooms out by a fixed amount. Hold the Shift key down and press the Minus key. |
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Recenter the Map - Pan |
Home, Up Arrow, Page Up, Left Arrow, Right Arrow, End, Down Arrow, Page Down |
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These keys move the map a small amount with each click. Arrow keys move vertically or horizontally. Home/End/PageUp/PageDown move diagonally. To use these keys on a numeric keypad, turn off the number lock (Num Lock key). |
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Zoom to the desired area of interest on the map.
Click on the Image extractor icon to clip the area desired. ![]()
The Clip Zip and Ship form appears.
Use the following icon explainations to export your imagery.
Select your area of export by polygon |
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Export the map, what you see on the screen |
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Deselect your area of interest,( un-select polygon area) |
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There are several coordinate systems to export your image in. Use the dropdown menu to select your option. |
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There are several options the user has to export the imagery. Use the dropdown menu to select your option. |
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The compression format gives the option for JPEG exports |
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The number in the Pixel Size box indicates the resolution of the imagery. If the data selected is 1.5 pixels it is 18 inches or 1.5 feet resolution. |
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This area of the Clip, Zip, Ship tool will show what the download size will be, how long it will take, and provides you a link to your Zip file. |
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1. |
Why can't I see as close to the ground as I want to? |
There is a zoom limit to keep the viewer from going below the image resolution. This would cause the image to pixelate or look blury on the screen. |
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2. |
Why is there a limit on the size I can export? |
There is a 500 Megabyte limit on the export of imagery to prevent lengthy download times. There is a limit on how many users can use the application at once so the limit had to be imposed in order to serve more users without impact to speed or performance. |
3. |
Why can't I move the extract box off screen when selecting my image export area? |
This box is movable by using the click / hold / drag / drop method. This box can also be closed and then select your area of interest. |
4. |
How can I stop an extract if it's taking too long? |
You will need to close the application and restart it. Freezing of the functions are unusual but a restart of the application will always restore it. |
5. |
What is a Session Time Out? |
A session can be timed out from extended inactivity. A new session must be started to use this application again. To start a new application, close your current session, then re-open the application. |