ERDAS Imagine Tips and Tricks
ERDAS Imagine Tips and Tricks

ERDAS IMAGINE Tip 1 - Stopping an IMAGINE Process

Tip Overview:

When a user has an ERDAS IMAGINE process running that will not stop by clicking a Close icon or a Cancel button, the process can be immediately shut down from the main IMAGINE toolbar.

Tip Process:

1. From the main ERDAS IMAGINE toolbar select, Session > Active Process List. This will bring up a new window listing all of the process that IMAGINE is currently running.

2. You can then select the process you want to stop and click the Kill button. IMAGINE will automatically end the selected process.


ERDAS IMAGINE Tip 2 - Hiding the GLT Viewer Tools

Tip Overview:

ERDAS IMAGINE allows the user to choose from two different types of Viewers, the standard Viewer and the Geospatial Light Table (GLT) Viewer. The GLT Viewer has a more extensive toolbar than the standard Viewer. This toolbar contains buttons that perform commonly used functions. While these tools are useful to have easily accessible, some users do not like the amount of workspace the tools takes up. You can hide the GLT Viewer tools allowing for more viewing area.

Tip Process:

1. To hide or view the GLT tools simply click the Hide GLT toolbar icon.


ERDAS IMAGINE Tip 3 - Viewing Multiple Layers in a Viewer

Tip Overview:

When there are multiple images in a GLT Viewer it can sometimes be difficult determining one image from another. A user can quickly view the images in the Viewer with the Toggle Layer Tool Tree. As the user moves the cursor throughout the Viewer, the toggle layer tree tool will show which image the mouse is currently hovering over. If your mouse is hovering over an image that is not the top most layer, then all you have to do is double-click in the Viewer and the toggle tree tool will automatically raise the selected image to the top of the stack of layers.

Tip Process:

1. Click the Toggle Layer Tool Tree icon.

2. Move the mouse throughout the Viewer to see the image your cursor is currently over.


ERDAS IMAGINE Tip 4 - Creating a Spatial Profile

Tip Overview:

If you have imagery and an elevation model available, you can create a spatial profile of a line or area. A spatial profile shows elevation change along a selected line or area. This is often useful when studying a route. For example, the spatial profile tool gives decision makers a better understanding of the terrain along a route.

Tip Process:

1. To create a spatial profile first load an elevation model then an image into a GLT Viewer.
2. From the Viewer, click the Profile Tool icon.
3. Enable the Spatial option and click OK. The profile tool dialog will open.



4. Click the Create Polyline icon.
5. Digitize a line across the terrain in the Viewer for the spatial profile. Double-click to terminate the line. The elevation profile will display in the profile window.



6. You can save this profile and add it to presentations or map compositions by selecting File > Save As and save it as an image.


ERDAS IMAGINE Tip 5 - Quickly Navigate to a Specific File Location

Tip Overview:

It is common when working on a project to open the same file over and over again. You can eliminate having to navigate through folders to open the same file by using the Recent and Goto buttons. These buttons are located on the Select Layer To Add dialog.

Tip Process:

When you select the Recent button, IMAGINE will list several of the files that you have recently opened. You can select the file you want and click OK to quickly open the file. Also, the user can view a list of recently accessed file directories and folders with the Goto button.


ERDAS IMAGINE Tip 6 - Commonly Used File Types

Tip Overview:

Often a user will mainly open one file type the majority of the time. You can set IMAGINE to always attempt to open a specific file type every time the Select Layer To Add dialog opens. For example, if you mainly work with shapefiles you can set the Select Layer To Add dialog to always open and look for shapefiles.

Tip Process:

1. Use the asterisk icon to set this preference is located on the Select Layer To Add dialog.


ERDAS IMAGINE Tip 7 - Commonly Used File Directories

Tip Overview:

ERDAS IMAGINE can also be set to automatically navigate to a specific directory or an output directory. A saved output directory saves every newly created file in the specified output file directory.

Tip Process:

There are two places these setting can be saved:

1. From the Preferences Editor located on the main ERDAS IMAGINE toolbar (Session > Preferences).

2. From the Select Layer To Add dialog. The Set Directory icon and the Set Output Directory icon are located on the top right corner of the Select Layer To Add dialog.

Preferences


ERDAS IMAGINE Tip 8 - A Shortcut to Commonly Used Viewer Functions

Tip Overview:

When working in the Viewer you can quickly access a list of shortcut menu items, such as Blend, Swipe, and Fit Image to Window.

Tip Process:

1. Right-click anywhere within the viewing area of the Viewer. The menu list will display showing shortcuts to a variety of processes.

Viewer Functions



ERDAS IMAGINE Tip 9 - Drag and Drop Files in Windows

Tip Overview:

Many users organize and search for files using a My Computer or Windows Explorer window. When you have a window open you can drag and drop files from the window to a Viewer. This eliminates having to navigate and locate files twice.

Tip Process:

1. Click and drag a file in the My Computer or Windows Explorer window to the Viewer. Once the cursor is in the Viewer, release the left mouse button and the file will open in the Viewer.


ERDAS IMAGINE Tip 10 - Drag and Drop Files between GLT Panes

Tip Overview:

An IMAGINE GLT Viewer can have up to four viewing panes. Each pane can contain different files or the same files with one pane designated as the overview. Within IMAGINE you can easily drag and drop files from one viewing pane to another.

Tip Process:

1. When you have more than one viewing pane open in a Viewer, you can drag and drop files from one to another. Only the topmost file in the viewing pane will be copied over to another viewing pane. To do this, simply click and drag from one viewing pane to another and release the left mouse button.
2. By pressing the Control key on the keyboard and using the drag-and-drop method you will drag all layers into the new viewing pane. The images will be set to Fit to Frame.
3. By pressing the Shift key on the keyboard and using the drag and drop method you will drag all layers into the new viewing pane. The images will be set to Default Zoom (One screen pixel equals one image pixel).




ERDAS IMAGINE Tip 11 - Using the DPPDB Workstation

Tip Overview:

DPPDB is commonly used within the defense industry. ERDAS IMAGINE’s DPPDB workstation allows users to import and work with DPPDB through a graphical user interface. It also allows the user to quickly and easily create a block file that can be used in Stereo Analyst to view the imagery or within LPS.

Tip Process:

1. The DPPDB workstation can be accessed by selecting Tools > DPPDB Workstation from the main ERDAS IMAGINE toolbar.


ERDAS IMAGINE Tip 12 - Viewing NITF Header Information

Tip Overview:

A lot of information about an image can be accessed from the Image Info dialog box. This is especially true for NITF files. The NITF header information contains important information such as projection, file type, classification, and sensor type.

Tip Process:

1. After loading an image into a Viewer, click the ImageInfo icon. This will bring up a dialog box showing important information about the image.

2. The NITF header information is found on the last tab (NITF Info) of the ImageInfo dialog.

Source: http://www.erdas.com