<div>After some struggles I made it work. </div>
<div>Here's how it works for me (Mapguide Enterprise 2010):</div>
<div>1) Make sure the Geotiff's have Nodata values</div>
<div>2) Convert the GeoTiff' to RGBA Png's (and produce a world file)</div>
<div>3) Use the gdal provider (fdo 3.4) to show the files in mapguide</div>
<div> </div>
<div>I used FME for all the conversion.</div>
<div> </div>
<div>Nothi<br><br></div>
<div class="gmail_quote">2009/7/2 Mark Nichols <span dir="ltr"><<a href="mailto:markn@spicergroup.com">markn@spicergroup.com</a>></span><br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px">Yes, last week I had problems with bi-tonal TIFF’s. I had a reply from a member of the list instructing me to use Irfanview and convert the TIFF’s the PNG’s. It took a little work but yes, it did work. I do now have transparent images in MapGuide. There were a few steps in Irfanview that I’m not remembering. If you have problems, repost and I’ll try to step through the process again.<br>
<br>Mark<br><a href="mailto:markn@spicergroup.com" target="_blank">markn@spicergroup.com</a>
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<div class="h5"><br> <br><br><br>On 7/2/09 1:51 PM, "Andy Morsell" <<a href="mailto:amorsell@spatialgis.com" target="_blank">amorsell@spatialgis.com</a>> wrote:<br><br></div></div></span></font>
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<div class="h5"><font face="Verdana, Helvetica, Arial"><font color="#1f497d"><font size="4"><span style="FONT-SIZE: 14px">It seems that the GDAL provider deals with transparency differently for different image formats. Others have mentioned this on this board as well. There was a post in the last week or so about this and they solved it by converting their imagery to transparent PNG’s. Search the group for “transparency” or “transparent” and see what you come up with.<br>
<br></span></font><span style="FONT-SIZE: 12px">Andy Morsell, P.E.<br>Spatial Integrators, Inc.<br></span></font></font><font color="#1f497d"><font size="4"><font face="Courier New"><span style="FONT-SIZE: 13px">47° 46' N 116° 49' W<br>
</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"><a href="http://www.spatialgis.com/" target="_blank">www.SpatialGIS.com</a><br></span><font size="4"><span style="FONT-SIZE: 14px"><br>
</span></font></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"><br></span><font size="4"><span style="FONT-SIZE: 13px"><b>From:</b> <a href="mailto:mapguide-users-bounces@lists.osgeo.org" target="_blank">mapguide-users-bounces@lists.osgeo.org</a> [<a href="mailto:mapguide-users-bounces@lists.osgeo.org]" target="_blank">mailto:mapguide-users-bounces@lists.osgeo.org]</a> <b>On Behalf Of </b>Johann Nothbauer<br>
<b>Sent:</b> Thursday, July 02, 2009 10:31 AM<br><b>To:</b> <a href="mailto:mapguide-users@lists.osgeo.org" target="_blank">mapguide-users@lists.osgeo.org</a><br><b>Subject:</b> [mapguide-users] Transparent Rasters in Mapguide Enterprise 2010<br>
</span></font></font><font size="5"><font face="Times New Roman"><span style="FONT-SIZE: 16px"><br></span></font></font><font face="Times New Roman"><font size="4"><span style="FONT-SIZE: 13px">Hi all!</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"> <br>
<br></span></font><font size="4"><font face="Times New Roman"><span style="FONT-SIZE: 13px">I'm trying to set up a map that contains GeoTIFF Images. Those images are the result of a re-projection from WGS84 to some projected system. That's why they have some "Nodata" strips on the edges (color info is paletted).<br>
</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"><br></span></font><font size="4"><font face="Times New Roman"><span style="FONT-SIZE: 13px">Unfortunately MapGuide seems to ignore the NoData values, so there are overlaps between the images.</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"> <br>
<br></span></font><font size="4"><font face="Times New Roman"><span style="FONT-SIZE: 13px">Has anyone solved a similar problem?</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"> <br>
<br></span></font><font size="4"><font face="Times New Roman"><span style="FONT-SIZE: 13px">Any help appreciated,</span></font></font><font face="Verdana, Helvetica, Arial"><span style="FONT-SIZE: 12px"> <br><br></span></font><font size="4"><font face="Times New Roman"><span style="FONT-SIZE: 13px">nothi</span></font></font></div>
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