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At the top of the display a toolbar is visible. It provides the followingfunctions:
-
Open a FITS file
: Display a FITS file that is stored on disk.
-
Save image as...
: Save the displayed image. The output format can be selected in a separate window.
-
Cut selected FOVs
: Delete a pointing position that has previously been selected e.g. by clicking on it in the image or using the
Select FOVs
button.
-
Select FOVs in a rectangular region
: Multiple pointing centres can be selected by drawing a rectangular area around them.
-
Set the target center (Source Coordinates)
: Mark the centre of the target by clicking in the image. This will change the source coordinates in the Source panel.
-
Add a FOV
: Add a pointing centre by clicking in the display. These will be added to the tablel in the Field Centre Coordinates panel.
-
Draw a rectangular map
: Use the cursor to define a rectangular region to be mapped - this will change the
Target Type
in the Source panel. Via the colour anchors the region can be reshaped and rotated. This region will be tiled with a mosaic of pointings depending on the parameters in the
Rectangle
panel.
-
Show Pointing Positions
: Show the mosaiced pointing positions calculated for a rectangle field.
-
Image Cut levels
: Set the image cut level and pixel value distribution using a separate interface.
-
Show/Hide Grid
: Display a coordinate grid.
At the bottom of the display four buttons are available for zooming functions. In addition the zoom factor, the pixel and sky coodinates at the cursor position and pixel value are visible. The image filename that is loaded is also displayed.
Next:
FOV Parameters
Up:
The Visual Spatial Editor
Previous:
The Visual Spatial Editor
Contents
Index
The ALMA OT Team, 2011 May 20