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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
1) Can VisAD set line styles (continuous, dotted, dashed, dotted-dashed...)? If yes, how do I find out existing choices of line styles.
There is a 'makeLineStyle(style, width)' method that makes a ConstantMap for use with line drawing. The options are 'solid', 'dash', 'dot', and 'dashdot', plus the line width.
2) Is there an *existing* set of shapes for the user to use as data points in the plot? I see there is support for creating any shapes and there is an example as how to do this for those who want to make a shape from scratch. I have tinkered with the tutorial example P2_06 and tried to map the example realTypes into Display.Shape, but I don't see anything showing up.
In the 'subs.py' there is a class named "Shapes" which provides a few built-ins. Also, a 'textShape()' method for making a Shape out of a text string (useful when moving the text around or changing it; otherwise, 'drawString()' is more straight-forward.
4) how to change the plotting box aspect ratio without changing other components? The Display.setProjectionControl() "streches" or "compresses" all component being drawn. This is not what I ask for. What I ask for for example, is how to change the aspect of the box without changing the width of the ticks, data curves, font and any other thing on the plot.
setAspectRatio(display, ratio) will do it (ratio is width/height). You had previously asked a question about making "fancy" 2D graphs. If thescreen shot Ugo sent still falls short of your needs, you might consider this: It is quite practical to interface VisAD Data objects with other graphing packages: I've done a few examples for specific Data types using both Ptolmey graphics (AWT) and the Scientific Graphing Toolkit (SGT). They both allow a higher degree of customization (including some legends), but come with their own set of quirks and limitations.
Hope that helps... tom -- Tom Whittaker (tomw@xxxxxxxxxxxxx) University of Wisconsin-Madison Space Science and Engineering Center Cooperative Institute for Meteorological Satellite Studies Phone/VoiceMail: 608.262.2759
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