Help Categories

 

The Tool Bar

  1. In the toolbar, click on the tool you want to use.

  2. Move the cursor over the map. The cursor may change to indicate the tool you are using.

  3. Click on the map with the left mouse button. Note: Some tools work by depressing the mouse and
    dragging the cursor to draw a rectangle, line or polygon, then releasing the mouse button.

  4. The results depend on the tool. The map appearance may change, such as zooming in or out.

Zoom in

Click and drag a rectangle: Click and hold the left mouse button down on the map at one corner of the rectangle to zoom in. Drag the mouse to the other corner of the rectangle, and release the mouse button. The map will zoom in to the area of the rectangle.

Zoom out

Click and drag a rectangle: the map will zoom out so that the current map area will fit into the rectangle drawn. The smaller the rectangle you draw, the more the map will zoom out.

Pan

Click, hold, and drag the map: hold the left mouse button on the map, and drag the map view around.

Full extent

Full extent: Immediately zooms the map out to the area of all features and layers.

Previous Extent

Click to go to the previous map view.

Next Extent

Click to go to the next view. The Previous and Next views toggle back and forth for the viewing history of the session.

Clip, Zip, Ship

Click this icon for the clip, zip, and ship dialog box. Set your perimiters and export your imgage.

Image Sources

Use this dropdown to select an imagery dataset.

 

Using the Mouse

Mouse wheel

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

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

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.

 

 

 

Using the Keyboard

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.

 

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.

 

Recenter the Map - Pan

 

Home, Up Arrow, Page Up, Left Arrow, Right Arrow, End, Down Arrow, Page Down

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).

 

 

The Export Image Feature

  1. Zoom to the desired area of interest on the map.

  2. Click on the Image extractor icon to clip the area desired.

  3. The Clip Zip and Ship form appears.

  4. Use the following icon explainations to export your imagery.

Select your area of export by polygon

 

Export the map, what you see on the screen

 

Deselect your area of interest,( un-select polygon area)

 

There are several coordinate systems to export your image in. Use the dropdown menu to select your option.

There are several options the user has to export the imagery. Use the dropdown menu to select your option.

The compression format gives the option for JPEG exports

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.

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.

 

Metadata

Cities

 

Frequently Asked Questions

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.
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.

 


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