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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I’m
trying to produce a tile matrix set from geocoded tiffs using gdal2tiles.py but
I am having trouble with the last step in the process.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>As
an example I have a BSB file from NOAA which is a navigational map of Lake Pend
Oreille in Idaho. The map has a SRS of WGS84 and a Mercator projection.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I
initially translate the file from BSB format to GTiff format using the
following command:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> gdal_translate -of GTiff
noaa\18554_1.kap noaa.tif<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I
can view this GTiff file using Paint Shop Pro quite fine. I then translate the
file from GTiff format to VRT format using the following command:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> gdal_translate -of vrt –expand
rgba noaa\noaa.tif noaa\noaa.vrt<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I
then try to generate a tile matrix set using the following command:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> gdal2tiles.py noaa\noaa.vrt noaa<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>But
get the follwoing error:<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> ERROR 1: failed to load NAD27-83
correction file<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> ERROR 1: GDALSuggestedWarpOutput()
failed because the passed<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> transformer failed.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>> usage: Usage: gdal2tiles.py [options]
input_file(s) [output]<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt;text-indent:36.0pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>> gdal2tiles.py:
error: Size of the pixel in the output differ for X and Y axes.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Am
I missing something?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>My
system is Windows Vista (32-bit). I’m using GDAL v1.6.0 win32 binary,
GDAL v1.6.0 python package, PROJ4 v4.4.6 win32 binary, NumPy v1.2.1 for win32
and Python v2.4.1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I
have set all the appropriate system variables and copied files to approprate
locations. This was done following the guidelinse at <a
href="http://www.gis.usu.edu/~chrisg/python/2009/docs/gdal_win.pdf">http://www.gis.usu.edu/~chrisg/python/2009/docs/gdal_win.pdf</a>
except that I omitted steps 3f and 3g.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Hope
you can help.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Brett<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
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