[Mapserver-users] Tiff problems

Fri Oct 24 15:18:01 EDT 2003

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I am running mapserver 4.1 and am having the following problems - I have =
3
geotiff files, one is 8bit data, one 16 bit data and one is 32 bit data =
(I
will not get into the 32 bit data here). I can view the geotiff's in =
openev
just fine, and passing the cursor over the images shows what appear to =
be
the correct data values. However, mapserver appears to be cutting off =
the
data values in the 16 bit geotiff to a max of 255. I have used CLASS =
objects
in the LAYER object to define color bands for the dataset, and =
everything
looks correct up to the 5th band ([pixel] >=3D 201 AND [pixel] <=3D =
500),exept
that everything in the dataset that should have a data value between 201 =
and
8700 is all colored according to that 5th band.

=20

Any thoughts?

=20

Ray Flanery

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I am running mapserver 4.1 and am having the =
following
problems &#8211; I have 3 geotiff files, one is 8bit data, one 16 bit =
data and
one is 32 bit data (I will not get into the 32 bit data here). I can =
view the geotiff&#8217;s
in openev just fine, and passing the cursor over the images shows what =
appear
to be the correct data values. However, mapserver appears to be cutting =
off the
data values in the 16 bit geotiff to a max of 255. I have used CLASS =
objects in
the LAYER object to define color bands for the dataset, and everything =
looks
correct up to the 5th band ([pixel] &gt;=3D 201 AND [pixel] =
&lt;=3D
500),exept that everything in the dataset that should have a data value =
between
201 and 8700 is all colored according to that 5th =
band.

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Any thoughts?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Ray Flanery</span></font></p>

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