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4D Scatter Plot - Visual Basic - DPLOT.DLL

 
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BColbert



Joined: 02 Jun 2010
Posts: 1

PostPosted: Wed Jun 02, 2010 10:49 am    Post subject: 4D Scatter Plot - Visual Basic - DPLOT.DLL Reply with quote

I am trying to add some VB code to automatically create 4D Scatter plots. Currently, this is not even program in the Excel add-in either because I have had to do the steps manually in DPlot to create this type of 4d scatter plot.

Is it possible to create this type of plot with the current version of the DPLOT.DLL? Or alternatively, can a Dplot Macro be created to do so? Apprarently DPLOT doesnt have a "record macro" function like Excel, so I guess I would have to learn those commands to do so? Where do I start?

Can a Dplot Macro be automatically called from a VB code? Basically I want to open DPlot, create the 4d Scatter with the appropriate settings for my type of plot, and then output a JPG. Is this possible?

Thanks,
Bob Colbert
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DPlotAdmin
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Joined: 24 Jun 2003
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PostPosted: Wed Jun 02, 2010 12:35 pm    Post subject: Reply with quote

Quote:
Is it possible to create this type of plot with the current version of the DPLOT.DLL?


Yes, with a couple of minor changes. Open the btest project and the file Global.bas. Find the line

Global Const DATA_3DS = 7 ' 3D scatter plot

and add

Global Const DATA_4D = 8
Global Const DATA_4DS = 9

The data organization with a 4D scatter plot is identical to that of a 3D scatter plot with an additional value/point, so the 3D example is a good place to start. I'd suggest copying Command7_Click to a new routine and making these changes:

ReDim Node(2, Ntotal - 1)
to
ReDim Node(3, Ntotal - 1)

In the loop assigning values to X,Y,Z, add a line assigning some amplitude to Node(3,k)

Change
d.DataFormat = DATA_3DS
to
d.DataFormat = DATA_4DS

and in the command string change [ColorBasis(1)] to [ColorBasis(0)].

Quote:
Basically I want to open DPlot, create the 4d Scatter with the appropriate settings for my type of plot, and then output a JPG. Is this possible?


Yes. After calling DPlot_Plot8, call
DPlot_Command(doc,"[FileSaveAs(""JPEG Picture"",""filename.jpg"")]")
where doc is the return value of DPlot_Plot8.

(This must be done in a separate call to DPlot_Command as suggested here, not included in the command string sent to DPlot_Plot.)
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