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OvertheSea
Joined: 05 Jul 2007 Posts: 3
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Posted: Sun Jul 13, 2008 11:26 pm Post subject: Excel Add-ins |
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Hi David,
thanks a lot for your great job and making this available for free ( the Jr version).
I would like to plot contours ( XYZSurface) in excel 2003. How many contours can be ploted on the same graph ?? l tried to plot 2 and doesn't seems to work, do l miss something ?
And other question not related to DPlot but l would greatly appreciate your help:
for a very particular application in language AEL l need to renomalize data from a non uniform grid to a uniform grid, do you know where l could find a simple Algorithm to Generate the mesh on the data and then compute a uniform grid ??
regards,
Michael G. |
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DPlotAdmin Site Admin
Joined: 24 Jun 2003 Posts: 2310 Location: Vicksburg, Mississippi
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Posted: Sun Jul 13, 2008 11:43 pm Post subject: |
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Michael,
Quote: | How many contours can be ploted on the same graph ?? l tried to plot 2 and doesn't seems to work, do l miss something ? |
255. Are you using the Add-In functions or trying to roll your own solution here? If you look at the file examples.xls in the \DPLOTLIB folder and try the XYZSurface test you should see 19 contour intervals (If you don't please let me know, but it would be really weird if you don't.)
As the XYZSurface command doesn't specify the number of intervals and instead allows DPlot to pick the number, I'm guessing you're doing your own thing here. If so, check the values you're using in the ContourLevels command - if the low and/or high values are outside the extents of your Z values then of course you won't get contour lines there. If this is no help you're welcome to send me your XLS file.
Quote: | ...l need to renomalize data from a non uniform grid to a uniform grid, do you know where l could find a simple Algorithm to Generate the mesh on the data and then compute a uniform grid ?? |
DPlot uses the IDBVIP routine from http://netlib2.cs.utk.edu/ _________________ Visualize Your Data
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OvertheSea
Joined: 05 Jul 2007 Posts: 3
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Posted: Mon Jul 14, 2008 12:51 am Post subject: |
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David,
thanks for your quick answer.
I believe l mis-formulated my first question about the number of contours ....
What l try to do is to plot on the same graph several set of data ... XYZ, XYZ1, XYZ2.... they all have the same XY grid but l have several set of Z : Output power, Efficiency ....
thanks for your reference about IDBVIP, l'm going to dig in !!
regards,
Michael |
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DPlotAdmin Site Admin
Joined: 24 Jun 2003 Posts: 2310 Location: Vicksburg, Mississippi
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Posted: Mon Jul 14, 2008 12:57 am Post subject: |
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Ah! No, currently you can only have one set of XYZ data (one surface) per surface plot. Multiple sets is on my to-do list, but it may be a while before that's available. If you have an urgent need for this sort of thing see this post:
http://www.dplot.com/forums/viewtopic.php?t=814 _________________ Visualize Your Data
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