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[IDV #ZPC-269421]: IDV - Artifact at zero degrees longitude when using transparency

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  • Subject: [IDV #ZPC-269421]: IDV - Artifact at zero degrees longitude when using transparency
  • Date: Thu, 22 Mar 2007 07:40:58 -0600
Hi Rick-

> Top image and enhancement
> ftp://ftp.ssec.wisc.edu/pub/ssec/rick-idv/AREA0005
> ftp://ftp.ssec.wisc.edu/pub/ssec/rick-idv/WIND1.ET
> 
> Basemap and enhancement
> ftp://ftp.ssec.wisc.edu/pub/ssec/rick-idv/AREA9992
> ftp://ftp.ssec.wisc.edu/pub/ssec/rick-idv/XTOPO2.ET
> 
> These should be out there for about a week - anonymous ftp.

Thanks.  I loaded in the images and set them up as you have them, 
but I don't get the white line at 0,0.  There was no AREA9992, but
there was an AREA9972, which I think was just a typo.  If it's the 
wrong image, let me know.

One thing to try is for the top image, go to the display
control's Properties dialog (Edit->Properties...) and click
on the Use Fast Rendering checkbox if it's not already checked
and see if that makes the line go away.  If it's already checked,
uncheck it and see if that makes a difference.

Don

> Unidata IDV Support wrote:
> > Hi Rick-
> >
> >> Institution: SSEC
> >> Package Version: 2.1
> >> Operating System: Windows XP
> >> Hardware Information: Java: home: C:\\Program Files\\IDV_2.1\\jre version: 
> >> 1.5.0_06 j3d:1.3.2 fcs (build12)
> >> Inquiry: I loaded 2 McIDAS area files - both with imported .ET enhancement 
> >> files. I adjusted the transparency for values 0-58 as 100% and 59 to 190 
> >> as 30%.  When completed I found a white line at 0 degrees longitude - see 
> >> attached file.
> >
> > Transparency is a crap shoot and sometimes there are artifacts from
> > the non-sorted triangles.
> >
> > Is the edge of the image at 0,0?  Do you get something similar if
> > your map bounds go 0-360 instead of -180 to 180?
> >
> > Are these local files or on an ADDE server?  If the latter, can you
> > send me a bundle?
> >
> > Don Murray
> >
> > Ticket Details
> > ===================
> > Ticket ID: ZPC-269421
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> 
> 


Ticket Details
===================
Ticket ID: ZPC-269421
Department: Support IDV
Priority: Normal
Status: Open