overlaping geotiff white area problem

[Ed McNierney]

Joerg -

You should open the new geotiffs in a graphics program that will let you read pixel values, and make sure that those pixels really have a RGB (or palette) value of 255 255 255.  They may be "almost white" but OFFSITE requires an exact match.

     - Ed

----- Original Message -----
From: joerg p <superbla3000 at gmx.net>
To: Ed McNierney <ed at TOPOZONE.COM>
Sent: Wed,  6 Oct 2004 09:53:42 -0400
Subject: Re: [UMN_MAPSERVER-USERS] overlaping geotiff white area problem


> I already had OFFSITE, offset was a mistake.
> 
> I reprojected the file with globalmapper, by switiching the projection 
> from utm to geographic, datum:wgs84 and planar units:arc degrees.
> 
> joerg
> 
> 
> 
> Ed McNierney wrote:
> > Joerg -
> > 
> > The map file statement you want is OFFSITE, not OFFSET.  If that doesn't work,
> tell us how you reprojected the files.
> > 
> >      - Ed
> > 
> > Ed McNierney
> > TopoZone.com
> > 
> > ----- Original Message -----
> > From: joerg p <superbla3000 at GMX.NET>
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Sent: Wed,  6 Oct 2004 09:40:07 -0400
> > Subject: [UMN_MAPSERVER-USERS] overlaping geotiff white area problem
> > 
> > 
> > 
> >>hello,
> >>
> >>I reprojected two utm geotiffs to geo latlong geotiffs. The geotiffs are
> >>overlapping and now, reprojected, they have curved sides.
> >>
> >>But now each geotiff is surrounded by a white area, and i can't set it
> >>transparent with offset 255 255 255.
> >>
> >>So I have several white areas on my map. What should I do?
> >>
> >>Joerg
> >>
> > 
> > 
> > 
> 
>