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Overview of the Graphical Interface

The Visual Spatial Editor interface consists of two main areas. On the left is the image display. In addition to the main window, the image display contains two smaller sized windows. The top one displays the whole image. When the imageis zoomed in the main display, a yellow square marks the area of the image that is visible. Using the left cursor button you can position the yellow square and the area of the image that is displayed. The other small window contains the zoomed part of the image centered on the actual position of the cursor in the main window.

Above the image display there is a toolbar that can be used forloading and saving images, for manipulating source and telescopepointing positions and for setting the intensity cut level in thedisplay. Their use is described in the following section.Below the image display there are buttons for zooming in and out, aswell as fields showing the position of the cursor, in image and skycoordinates and the pixel value at that position. The lower line givesthe name of the image file that is loaded and its location.An example of the image display can be seen in Figure  9.1 .

Figure 9.1: An example of the image display area on the Science Goal Visual Spatial Editor. The source position (big cross) is marked.
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Below the image display and its menu and control buttons the panels Fov Parameters and Image Query panels are visible.In the upper Fov Parameters panel the user can input the frequency and the antenna diameter that shall be used for calculation of the Field of View (FOV, primary beam). In the panel Image Query the image server and the size of the retrieved image can be specified. The query button will retrieve the selected object from the image server and load the image in the display window. The fields in the Image Query panel are used for specifying the image server and the size of the image to be displayed. These panels are shown in Figure  9.2 .

Figure 9.2: The FOV Parameters and the Image Query panels in the Visual Spatial Editor.
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The right side of the Spatial Editor shows a form that is divided intoa number of panels that contain the parameters for either the ScienceGoal Field Setup node, described in Section  6.3.2 , or theSB Field Source node described in Section  8.4.1 . Belowfollows a brief summary of what is visible. Please refer to thesesections for detailed information.



Subsections
next up previous contents index
Next: Science Goal Information Up: The Visual Spatial Editor Previous: The Visual Spatial Editor   Contents   Index
The ALMA OT Team, 2011 May 20