More GriddedNDSet Questions

[Tom Whittaker]

Kenneth:

Sorry about that.  You can pick up a copy of Makefile.WinNT at:

<ftp://ftp.ssec.wisc.edu/pub/ssec/tomw/Makefile.WinNT>

Also, on Windows you will need "nmake" to run this.

We are gradually switching over to using ant for the builds, but you will
need Ant version 1.7 or above
on Windows.  If you want to go that route, I've put the current ''build.xml
"
file on that same server.

There will be a VisAD update coming out soon -- just not finished testing
yet....

tom


On 4/16/07, Kenneth Evans <evans at aps.anl.gov> wrote:
>
>  >> If you're ready to compile VisAD from its source…
>
>
>
> I thought I was and have done that before.  There are two problems:
>
>
>
> 1. I am on Windows and when I extracted the new visad_src.jar, there seem
s
> to be no Makefile.WinNT in the visad directory.
>
>
>
> 2. I recall it didn't make the visad.jar before.  The way I am set up now
,
> it would be easy to replace the JAR file but not easy to set the build
> path.  (The reason is that it is set up as an Eclipse plug-in.)  So how d
o I
> make the JAR.
>
>
>
> The third problem is that I am leaving for Germany and France on Friday
> (and would like to have this working).  Consequently, my time is limited
for
> the trial and error approach.
>
>
>
> I can also do Cygwin builds, but I recall that didn't work before.
>
>
>
> Thanks for any help,
>
>
>
>         -Ken
>  ------------------------------
>
> *From:* owner-visad at unidata.ucar.edu [mailto:owner-visad at unidata.ucar.edu
]
> *On Behalf Of *Bill Hibbard
> *Sent:* Sunday, April 15, 2007 3:17 PM
> *To:* Kenneth Evans, Jr.; Visad
> *Subject:* RE: More GriddedNDSet Questions
>
>
>
> Ken,
>
> All the evidence you present says that the system is using
> texture mapping with your Linear2DSet and not using texture
> mapping with your Gridded2DDoubleSet (the slowness is
> consistent with not using texture mapping). If you're ready to
> compile VisAD from its source, you could uncomment the
> print statements for the computation of the isTextureMap
> and curvedTexture flags, in the ShadowFunctionOrSetType.java
> file in the visad package. Uncomment two sets of print
> statements, between (at least in the old version of source
> on my home machine) lines 453-477 and lines 713-733.
> It would be a good idea to eliminate all displayed data
> except the Field of interest, so you don't confuse with the
> print output of other data.
>
> Feel free to send the results to the list, and we'll try to
> figure out what's happening.
>
> Good luck,
> Bill
>
> ----- Original Message -----
> From: "Kenneth Evans, Jr."
> To: Visad
> Subject: RE: More GriddedNDSet Questions
> Date: Sat, 14 Apr 2007 12:01:57 -0500
>
>
>  Bill,
>
>
>
> I am attaching a picture of what I get with the Gridded2DDouble set.  The
y
> are triangles and don't extend beyond the plot range, whereas with the
> Linear2D set, they are pixels and extend .5 pixel beyond the plot boundar
y
> (presumably TextureMaps).  Moreover, the display is verrry slow in the
> Gridded2DDouble case.  The lines of code that are different in the two ca
ses
> are:
>
>
>
>     // Create the domain set
>
>     if(xVals2D == null && yVals2D == null) {
>
>       // Define a linear domain set with the indices
>
>       domainSet = new *Linear2DSet*(xMin, xMax, nX, yMin, yMax, nY);
>
>       System.*out*.*println*("Linear2DSet");
>
>     } else {
>
>       xVals1D = new double[1][nX * nY];
>
>       yVals1D = new double[1][nX * nY];
>
>       xVals1D[0] = VUtils.*convert2DArrayTo1DArray*(xVals2D, nY, nX);
>
>       yVals1D[0] = VUtils.*convert2DArrayTo1DArray*(yVals2D, nY, nX);
>
>       domainSet = new *Gridded2DDoubleSet*(domainType, new double[][] {
>
>         xVals1D[0], yVals1D[0]}, nX, nY);
>
>       System.*out*.*println*("Gridded2DDoubleSet");
>
>     }
>
>
>
> This is from a generic 2D plot class.  If you give it x and y values it
> uses the Gridded2DDoubleSet, otherwise the Linear2DSet.  I can send the
> whole file, if necessary.  The domainTypes are defined:
>
>
>
>     // Define types
>
>     xType = RealType.*getRealType*(xLabel, null, null);
>
>     yType = RealType.*getRealType*(yLabel, null, null);
>
>     RealType[] domainTypes = new RealType[2];
>
>     domainTypes[0] = xType;
>
>     domainTypes[1] = yType;
>
>     domainType = new *RealTupleType*(domainTypes);
>
>
>
> The fact that it is slow is more important to me than that is using
> triangles.
>
>
>
> gmc.getTextureEnable returns true in both cases.  I don't explicitly set
> it.
>
>
>
> The VisAD version is the Jan 07 version.
>
>
>
> Thanks,
>
>
>
>             -Ken
>
>
>  ------------------------------
>
> *From:* owner-visad at unidata.ucar.edu [mailto:owner-visad at unidata.ucar.edu
]
> *On Behalf Of *Bill Hibbard
> *Sent:* Monday, April 09, 2007 5:46 PM
> *To:* Kenneth Evans, Jr.; Visad
> *Subject:* RE: More GriddedNDSet Questions
>
>
>
> Hi Ken,
>
> Pairs of triangles indicate that the system is not using curved
> texture maps. I don't understand why it would use square
> texture maps with your LinearSet and not use curved texture
> maps with your GriddedSet, unless (according to my reading
> of the code in VisAD) you are making transparent surfaces.
> I doubt that sending an image will help.
>
> Good luck,
> Bill
>
>      What I see is pairs of triangles when I zoom in.  That is probably
> what a curved texture map looks like?  I can send an image if that would
> help, but I don't think I am seeing anything unusual.  It's just it is
> different when using a Gridded2DSet than when using a Linear2DSet, even
> though the grid data is equivalent.
>
>
>
> --
>
> <http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=en-mail_a_01>
>
> << Gridded2DSet.Triangles.png >>
>
>
> --
>
> <http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=en-mail_a_01>
>



-- 
Tom Whittaker
University of Wisconsin-Madison
Space Science & Engineering Center (SSEC)
Cooperative Institute for Meteorological Satellite Studies (CIMSS)
1225 W. Dayton Street
Madison, WI  53706  USA
ph: +1 608 262 2759