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20050331: StationModelDisplayable -plots of point data in main display




Yes I have "EQSymbol" StainCrossSymbol etc., and corresponding entries in the
stationsymbols.xml.  But those only draw symbols in the station model editor, 
right?
At least they did in the old version. I need code such as is (or was) in StationModelDisplayable.java and ShapeUtility.java that draws the point obs in the main display.
Yes, they should show up in the station model editor. What you want to do is to move the code that created 
the visad geometry arrays into methods in EQSymbol, StrainCrossSymbol, etc.
Look at ucar.unidata.ui.symbol.LabelSymbol
The idea is that the StationModelDisplayable looks at each MetSymbol in the station model. If the MetSymbol returns false in the call doAllObs (the default) the displayable tries to find the data objects in the point ob that correspond to the parameter name of the MetSymbol. 
If it cannot find them then it skips that symbol.
If the MetSymbol returns true from doAllObs then the displayable simply passes the point ob to the met symbol 
which returns the shapes to use. e.g.:
               if (metSymbol.doAllObs()) {
                   shapes = metSymbol.makeShapes(ob);
                } ...
else the displayable handles the creation of the shape array for known MetSymbol classes (e.g., WindBarbSymbol, WeatherSymbol, etc.) If it doesn't know how to handle the MetSymbol 
it calls the method:
               } else {
                   //Default is to ask the symbol to make the shapes
                   shapes = metSymbol.makeShapes(dataArray, ob);
               }

I hope that clears things up.

-Jeff