To start using Imagizer, place the CDROM into your CD tray. If the computer has autorun enabled,
Imagizer will start automatically.
Note: If autorun is not enabled, use Windows Explorer to access the CDROM and execute (double mouse click) the autorun.exe file found there.
STARTING ON A SOLARIS PLATFORM:
To start using Imagizer Viewer, place the CDROM into your CD tray. If the Solaris volume daemon (/usr/bin/vold) is running, the CDROM will mount automatically. See your system administrator if the CDROM does not mount correctly.
Type cd/cdrom/cdrom0/imagizer_viewer/bin/imagizer
IMAGIZER ICONS (left to right):
1: Viewer Selection Buttons - These first two buttons, left and right viewer, control access to the functionality of the Viewer Specific Tools. When either of these buttons is depressed, the functionality selected by a Viewer Specific Tool is applied to that Viewer. By default, when Imagizer Viewer is started, both the left and right buttons are in the depressed mode. To disable either button, left mouse click on the button once. This does not enable the user to close a viewer.
2: Open Layer - Use this to either select a new dataset for display (.vue) or open an existing annotation layer (.ovr) into an existing dataset. This action can only open datasets that are in the ERDAS View format. In the Imagizer Viewer it is possible to create an annotation layer, and redisplay it upon a base dataset. The user must then navigate to the directory in which the file to be opened resides, select the file and choose OK. The file chosen will be displayed in the viewer (or both viewers) in which the Viewer Selection button is depressed.
3: Save Annotation Layers - This button will save an annotation layer that is currently being edited by the user. By selecting this option, the user saves the current state of the top annotation layer in the viewer. If no annotation is currently being edited, this button is unavailable.
4: Save Contents of Viewer to TIFF - This allows the user to save the current contents of a viewer image to a TIFF (Tagged Image File Format) file.
NOTE:The user is responsible for proper classification and copyright information of the output.
The following describes the functionality found under the "Options" tab that will affect the quality of the output:
Area to Use: Full- This option will create a file that is as large as the geographic extent of the dataset
Visible- This will create a file that is bounded to the extent of the viewer (That which is currently visible to the user)
Output Image Size - The current state of the viewer controls the ground resolution of the output file at 100% scale. To change resolution, change the zoom ratio of the viewer. To change pixel resolution of the output file, increase the aspect ratio for Width and Height.
Use Grey Scale Output - Select this option to bypass an RGB Tiff output and create a monochrome TIFF image.
5: Clear Viewer - Selecting this option will erase all data from the viewer (or both viewers) in which the Viewer Selection button is depressed.
6: Create Annotation - This allows the user to create new annotations in a viewer. The new file selection dialog is opened, and the user must enter a file name in a directory in which write permissions are active. The annotations toolbar is opened at this time as well. To add annotation to the viewer, see the annotation toolbar documentation elsewhere in this document.
7: Link Viewers - The Link button will geographically link the two viewers. This is represented by a "link box" in either the left or right viewer, depending on the zoom state of the viewers at time of selection. Linking is appropriate when two Viewers cover the same geographic area (at least partially) and are referenced to the same map units. When two Viewers are linked; either the same geographic point is opened in the centers of both Viewers, or a link box shows where one view fits inside the other, and scrolling one viewer affects the other, and you can manipulate the zoom ratio and rotation of one viewer from another
It is often helpful to open a wide view of a scene in one viewer, and then a close-up of a particular area in another viewer. When two such viewers are linked, a link box appears in the wide view window to show where the close-up view lies.
Drag Center of Link Box to change display in other viewer
Drag Corner of Link Box to zoom In/Out in other viewer
Change Link Box Color - Left Mouse click on box, Press Space Bar, Change Selector Color and OK
To unlink the viewers, select the Link button again.
8: Fit Image to Window - This option will change the zoom state of the selected viewer to fit in the dataset to the extent of the viewer.
9: Reset Zoom - This option changes the zoom of the dataset in the selected viewer to the default scale (1 to 1 resolution) of the bottom layer in the dataset. It also will remove any rotations applied by the user.
10: Zoom In By 2 - Click to zoom in by a factor of two, towards the center of the displayed portion of the dataset.
11: Zoom Out By 2 - Click to zoom out by a factor of two, from the center of the displayed portion of the dataset.
12: Toggle North Arrow - When the north arrow tool is selected, a north arrow is placed in the center of the selected viewer. The north arrow can be moved any place within the extent of the viewer. When the two viewers are linked, the north arrows keep the same location within the opposite viewer. Select the button again to remove the north arrow.
13: Display the Arrange Layers Dialogue - By selecting the Arrange layers button, users may rearrange datasets displayed within a viewer by dragging layers (left mouse) to any position within the stack, delete the layer from the viewer or toggle a layerÆs visibility. After positioning the layers, use the apply button to make the changes in the viewer. The user can also choose one of these options below by clicking (right mouse) on one of the layers in the dialog box:
Raise To Top - This will put the selected layer to the top
Lower To Bottom - This will put the selected layer to the bottom
Delete Layer - This will remove the layer from the viewer
Layer Visibility - This will make the layer invisible until selected to be visible again.
14: Measurement Tool - The measurement tool enables the user to measure points, lines, polygons, rectangles and ellipses within the current viewer. The options in the tool are as described below:
Point - This tool reports the individual point coordinates (x,y) in the data.
Line - Move the cursor into the Viewer then click and drag between two points or click again to add a vertex to the length, and then double click to end the measurement.
Polygon - Move the cursor into the Viewer then click and drag along the perimeter of the area of measurement, click again to add a vertex to follow the edges of the polygon to be measured, then double click to close the polygon.
Rectangle - Move the cursor above a corner of the item to be measured and click and drag to the opposite corner
Ellipse - Move the cursor above the center of the circular item to be measured and click and drag to fit area.
Copy - The copy option is used if the user want to copy from the Measurement Tool window to another application desired by the user.
Lock Tool - Use the Lock tool to lock and unlock the currently selected measurement tool for repeated use.
Use the "Edit|Set Units..." option to enable display of measurements in these various units:
Length: inches, feet, yards, miles, centimeters, meters and kilometers
Area: square miles, acres, and hectares
Use the "Edit|Set Map Type..." option to enable display of measurements coordinates in either Map or Lat/Lon.
15: Start/Update Inquire Cursor - The Smart cursor will allow users to query a location and display those coordinates in either Geographic (Lat/Lon) or MGRS (Military Grid Reference System). Smart Cursor also allows users to view attributes of vector data as well histogram attributes of image data.
