Matrix from 1D waves

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Thu, 11/01/2012 - 12:14 pm

Hello All

I'm currently trying to write a small function to convert three vectors, each containing x,y and z values for a microscopy image, into a matrix. Sadly a function is (I think) necessary since I can't use Concatenate due to the x and y values being the matrix coordinates. Here's the sort of conversion I'm after:

1.6 2.3 zvalues
1.7 2.35 zvalues
1.8 2.4 zvalues
1.9 2.45 zvalues

to

....... 1.6 1.7 1.8 1.9
2.3
2.35 ~Zvalues~
2.4
2.45

Unfortunately the setting the x and y coordinate values has thus far proved elusive. I've pasted the procedure I've been able to get so far below, 'Hello' is just a counter: (Apologies I've don't know how to make text appear as it does in a procedure window)

Function CreateMatrix(xwave,ywave,zwave)
    Wave xwave,ywave,zwave
    Variable xx,yy,zz, PntNo, NumOfPnts, Xmax, Ymax, Xmin, Ymin, Width
    Variable Hello

    Wavestats xwave
    NumOfPnts=V_endrow
    NumOfPnts=NumOfPnts+1
    Width=sqrt(NumOfPnts)
    Xmax=V_max
    Xmin=V_min
    Wavestats ywave
    Ymax=V_max
    Ymin=V_min
    Make/O/N=(Width,Width) Image
    SetScale/I x,Xmin,Xmax, Image
    SetScale/I y,Ymin,Ymax, Image

    Hello=0
    PntNo=0
    Do
        xx=xwave(PntNo)
        yy=ywave(PntNo)
        zz=zwave(PntNo)
        Image[xx][yy]=zz
        PntNo=PntNo+1
        Print hello
        hello=hello+1
    While (PntNo<=NumOfPnts)
End


As always any help is greatly appreciated.

Thanks
Jon
Excellent thanks HrodStein, is there anyway to access the procedure for the XYZtoMatrix macro?

Jon

November 2, 2012 at 04:57 am - Permalink

Once you've found the entry for the XYZtoMatrix procedure file in the WM Procedures Index help window, click the little document button on that line. It will add the appropriate #include line to your main Procedure window, load the procedure file, and display the window with the code in it. Instructions for use of the file are in comments at the top.

An easier way to load the procedure file is to select Data->Packages->XYZ to Matrix. But then to see the code you need to select Windows->Procedure Windows->XYZtoMatrix.ipf

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

November 2, 2012 at 08:55 am - Permalink