<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>GDAL 1.7.3, released 2010/11/10, for Mac OS X 10.6, acquired from <a href="http://www.kyngchaos.com/software:frameworks">http://www.kyngchaos.com/software:frameworks</a>, properly reads geo referenced raster images of Type=Float32. For the example 468 MB image, gdalinfo properly reports Type=Float32, and Computed Min/Max=35.024,748.615.</div><div><br></div><div>GDAL 1.8.0, released 2011/01/12, for Mac OS X 10.6, acquired from <a href="http://www.kyngchaos.com/software:frameworks">http://www.kyngchaos.com/software:frameworks</a>, improperly read geo referenced images of Type=Float32. For the example 468 MB image, gdalinfo improperly reports Type=Byte, and Computed Min/Max=0.000,255.000.</div><div><div><br></div></div><div><font class="Apple-style-span" face="Courier">gregcoats $ source ~/programs/scripts/paths_gdal_173.sh</font></div><div><font class="Apple-style-span" face="Courier">gregcoats $ gdalinfo --version</font></div><div><font class="Apple-style-span" face="Courier">GDAL 1.7.3, released 2010/11/10</font></div><div><font class="Apple-style-span" face="Courier">gregcoats $ gdalinfo -mm floatn40w078_13.flt | tail -3</font></div><div><font class="Apple-style-span" face="Courier">Band 1 Block=10812x1 <b>Type=Float32</b>, ColorInterp=Undefined</font></div><div><font class="Apple-style-span" face="Courier"> <b>Computed Min/Max=35.024,748.615</b></font></div><div><font class="Apple-style-span" face="Courier"> NoData Value=-9999</font></div><div><font class="Apple-style-span" face="Courier"><br></font></div><div><font class="Apple-style-span" face="Courier">gregcoats $ source ~/programs/scripts/paths_gdal_180.sh</font></div><div><font class="Apple-style-span" face="Courier">gregcoats $ $gdalinfo --version</font></div><div><div><font class="Apple-style-span" face="Courier">GDAL 1.8.0, released 2011/01/12</font></div></div><div><font class="Apple-style-span" face="Courier">gregcoats $ gdalinfo -mm floatn40w078_13.flt | tail -3</font></div><div><font class="Apple-style-span" face="Courier">Band 1 Block=10812x1 <b>Type=Byte</b>, ColorInterp=Undefined</font></div><div><font class="Apple-style-span" face="Courier"> <b>Computed Min/Max=0.000,255.000</b></font></div><div><font class="Apple-style-span" face="Courier"> NoData Value=-9999</font></div><div><font class="Apple-style-span" face="Courier"><br></font></div></body></html>