Thanks to all of you who've been helping me learn the ropes. I am getting close (I hope) to being able to serve up on-the-fly-generated remote sensing imagery using GDAL and MS. I am using the latest MS4W distribution with GDAL 1.6. I have taken Tiff images and tiled and created overviews using Frank's suggestions:<br style="font-family: courier new,monospace;">
<div style="margin-left: 40px;"><span style="font-family: courier new,monospace;">gdal_translate -co TILED=YES in.tif out.tif</span><br><span style="font-family: courier new,monospace;">gdaladdo out.tif 2 4 8 16 32 64</span><br>
</div>When I request an image using a web browser like:<br><div style="margin-left: 40px;"><span style="font-family: courier new,monospace;"><a href="http://localhost/cgi-bin/mapserv.exe?map=R">http://localhost/cgi-bin/mapserv.exe?map=R</a>:\Temp\Test\A091003033655.map&SERVICE=WMS&VERSION=1.1.0&REQUEST=GetMap& SRS=EPSG:4326&BBOX=36.141921,-121.788916,36.324769,-121.565064&FORMAT=image/tiff&WIDTH=256&HEIGHT=256&STYLES=&LAYERS=TEST_SWIR_TILED</span></div>
all I get is a white image. The BBOX parameter is the same as my mapfile extents, which is the same as the imagery bounds. The projections are the same as well (EPSG 4326).<br><br>Questions: <br><ol><li>Can I pull up an image this way in a browser (using FF 3.5)</li>
<li>If so, what am I doing wrong?</li><li>What are some other points of validation I can perform to break down the testing a bit more?<br></li><li>What needs to be done to be able to view the WMS images in Google Earth or ArcGIS explorer (e.g. adding querystring arguments via a proxy handler, etc?)</li>
</ol>Thanks again MS community. I look forward to someday joining the ranks.<br><br>-Dan<br><br><br>My Mapfile looks like this:<br><br><span style="font-family: courier new,monospace;">MAP</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> EXTENT 36.141921 -121.788916 36.324769 -121.565064</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> IMAGECOLOR 255 255 255 </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGETYPE gif</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> SIZE -1 -1</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> STATUS ON</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> UNITS DD</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> NAME "MS"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> OUTPUTFORMAT</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> NAME "GTiff"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> MIMETYPE "image/tiff"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> DRIVER "GDAL/GTiff"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> EXTENSION "tif"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGEMODE "RGB"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> TRANSPARENT FALSE</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> PROJECTION</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> "proj=longlat"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> "ellps=WGS84"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> "datum=WGS84"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> "no_defs"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> LEGEND</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGECOLOR 255 255 255</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> KEYSIZE 20 10</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> KEYSPACING 5 5</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> LABEL</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> SIZE MEDIUM</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> TYPE BITMAP</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> BUFFER 0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> COLOR 0 0 0</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> FORCE FALSE</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> MINDISTANCE -1</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> MINFEATURESIZE -1</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> OFFSET 0 0</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> PARTIALS TRUE</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> POSITION LL</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> STATUS OFF</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> QUERYMAP</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> COLOR 255 255 0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> SIZE -1 -1</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> STATUS OFF</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> STYLE HILITE</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> SCALEBAR</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> ALIGN CENTER</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> COLOR 0 0 0</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGECOLOR 255 255 255</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> INTERVALS 4</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> LABEL</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> SIZE MEDIUM</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> TYPE BITMAP</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> BUFFER 0</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> COLOR 0 0 0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> FORCE FALSE</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> MINDISTANCE -1</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> MINFEATURESIZE -1</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> OFFSET 0 0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> PARTIALS TRUE</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> POSITION LL</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> SIZE 200 3</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> STATUS OFF</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> STYLE 0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> UNITS MILES</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> WEB</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGEPATH ""</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> IMAGEURL ""</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> QUERYFORMAT text/html</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> LEGENDFORMAT text/html</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> BROWSEFORMAT text/html</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> END</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> LAYER</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> DATA "R:\Temp\Test\test_SWIR_tiled.tif"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> NAME "TEST_SWIR_TILED"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> STATUS DEFAULT</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> TYPE RASTER</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> UNITS DD</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> END</span><br><span style="font-family: courier new,monospace;">END</span><br style="font-family: courier new,monospace;">
<br><br><br><br><blockquote style="margin: 1.5em 0pt;"><div style="border: 1px solid black; padding: 5px; font-family: tahoma; font-size: 8pt; font-weight: bold; width: 150px;">
Dan Walton<br>
<a href="mailto:dgwalton@gmail.com">dgwalton@gmail.com</a>
</div></blockquote><br>