Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Greetings,I'm still struggling with the use of Alpha in a 2D display (TwoDDisplayRendererJ3D to be specific). I have a FlatField (lat,lon)->Alt in a 2D display. I then create a "wedge" shape using DelaunayCustom.fill and add the shape to the display while setting its alpha value to 0.5.
ConstantMap[] pointMap = { new ConstantMap (0.0f, Display.Red),
new ConstantMap (0.0f, Display.Green),
new ConstantMap (0.0f, Display.Blue),
new ConstantMap (0.5f, Display.Alpha),
new ConstantMap (4.0f, Display.PointSize) };
DataReferenceImpl widthRef = new DataReferenceImpl("widthRef");
display.addReference(widthRef, pointMap);
widthRef.setData(widthSet);
The wedge is not transparent to the displayed data "below" it. Please see:
http://www.cimms.ou.edu/~kmanross/VCPRPE/VisADSamples/VisADAlphaIssue.gif
The only thing that changing the value for Display.Alpha does it change
the color of the wedge from black (0.0) to white (1.0).
I am hoping for the wedge to behave like the transparent radar echoes do in Don Murray's 1st two examples:
http://www.unidata.ucar.edu/staff/donm/radar_pics.html where you can see the state boundaries below the radar echo.Also, If I translate the displayed image (left click drag) to the upper left corner, it covers up the cursor readout when the middle button is clicked. Is there a way that I can ensure that readout remains visible when data is displayed in that region of the window?
Many thanks!! -kevin. -- +------------------------------------------------------------+ Kevin L. Manross [KD5MYD] <>< (405)-366-0557 CIMMS Research Associate kevin.manross@xxxxxxxx [NSSL-WRDD/SWATN] http://www.cimms.ou.edu/~kmanross "My opinions are my own and not representative of CIMMS, NSSL, NOAA or any affiliates" +------------------------------------------------------------+
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