Re: Best performance using UnionSets

• To: "Ciccero A. W. Zandoná" <cicero@xxxxxxxxxx>
• Subject: Re: Best performance using UnionSets
• From: Doug Lindholm <lind@xxxxxxxx>
• Date: Mon, 24 Sep 2001 16:39:33 -0600

Hi,

I am using this approach for maps. Mine have about 200 Gridded2DSets in
the UnionSet. I suspect more memory and maybe CPU would help. I'm
running with something like a dual 500MHz with 500MB RAM.

Doug

"Ciccero A. W. Zandoná" wrote:
> 
> Hi VisAD Community:
> 
> I have already asked something like this before, but this time I will
> try to give more information about my problem:
> 
> I'm tring to plot a contour map inside a 2Ddisplay from a text file
> (more specific a .MIF file from the MapInfo software). My class is
> reading the polylines that are in the file and then creating
> Gridded2DSets for each one, then puting then on a Gridded2DSet array and
> then into a UnionSet.
> 
> Just like the rivers.java example.
> 
> Bill told me I should check how many GriddedSets I was creating but the
> number is about 400 and there are about 25000 points. I don't think this
> is so much.
> 
> When I change from Gridded to Irregular2DSet, the application becomes
> very faster, but the Irregular2DSet can only plot points.
> 
> I'm using a IBM-PC 300Mhz and Ram:128Mb running Windows 98.
> 
> Please, somebody must have used maps on VisAD, and this can't be the way
> it is. I'm doing something wrong.
> 
> Maybe I should use a FlatField but I dont know how.
> 
> An aswer is very important in the moment. It can determine if I can use
> VisAD or not.
> 
> Thanks Already
> 
> Cicero Augusto Wollmann Zandoná
> cicero@xxxxxxxxxxxxxx

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• References:
  • Best performance using UnionSets
    • From: Ciccero A. W. Zandoná