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.
> > Hi John, > > > A while back, I asked about plotting multiple scalars to the same axis > > and was told that I nust needed to call a SetScaleEnable(true). Well, > > I've finally gotten back around to trying this, and I get the error: > > > > Single DisplayRealType DisplayYAxis occurs more than once: > > ShadowType.testIndices > > > > What is going wrong? > > This message indicates that more than one RealType is mapped > to Display.YAxis, and that the display logic is trying to > apply both at once (e.g., data has MathType (a -> (b, c)) > and both b and c or both a and b are mapped to YAxis). If > multiple RealTypes are mapped to YAxis, they cannot be in > path from root to leaf in the MathType tree (the exact > defintion is a bit complex, but this is the intuition). > > It is unlikely (but not impossible) that this is caused by the > ScalarMap.setScaleEnable(true) call. > Right, that's exactly what I want to do. A while back, I asked about mapping multiple data sets to the same axis, and got a response saying that this was possible, if you use setScaleEnable: <SNIPPET FROM OLD MESSAGE> ------------------------------------------------------------------- > Is it possible to produce plots with more than one axis scale in the > same direction? That is, if you have two or more RealTypes mapped to > the same domain, is it possible to plot them in the same visualization > space? If so, how? > Hi John, As long as you have called GraphicsModeControl's setScaleEnable(true) you should get an axis scale for every ScalarMap mapping a RealType to an Axis. e.g. display.getGraphicsModeControl().setScaleEnable(true); display.addMap(new ScalarMap(a, Display.XAxis)); display.addMap(new ScalarMap(b, Display.XAxis)); should give you a scale for a and b along the x axis, unless I am missing something. -------------------------------------------------------------------- </END SNIPPET> So, was this advice wrong? Is it not possible to plot two lines or two surfaces (or whatever) in the same display? (For instance, a "climatogram" plotting temperature and precipitation vs. time.) This functionality is important to the educational visualization application I am working on. -john
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