<div dir="ltr">Markus,<div><br></div><div style>The GDAL C# bindings in FWTools is pretty ancient at this point so reporting bugs against it is unlikely to result in improvements. You might want to upgrade to the latest version - either building from source, or perhaps using Tamas' SDK (<a href="http://www.gisinternals.com/sdk/">http://www.gisinternals.com/sdk/</a>).</div>
<div style><br></div><div style>Best regards,</div><div style>Frank</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 8, 2013 at 3:07 PM, markus.u.mueller <span dir="ltr"><<a href="mailto:markus.u.mueller@zoho.com" target="_blank">markus.u.mueller@zoho.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u><div><div style="font-size:10pt;font-family:Verdana,Arial,Helvetica,sans-serif">Dear listers,<div><br></div><div>
<span style="line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif">I think I found a bug in GDALReadDirect.cs (part of FWTools). Is this the right place to record it? I will describe the problem anyway and would be willing to move it to another place if more appropriate.</span></div>
<div><span style="line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif"><br></span></div><div><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
I want to read Arc/Info Binary Grids and convert them to other image formats using the C#-bindings of GDAL. I installed FWTools 2.4.7 and the current binaries (MSVC2010 (Win64) -stable) from <a href="http://vbkto.dyndns.org/sdk/" target="_blank">http://vbkto.dyndns.org/sdk/</a>. Then I started testing the example C#-programs that are part of FWTools, especially GDALReadDirect.cs. When I use the demo dataset <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif">utm.tif</code>, this all works fine.</p>
<p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">I then converted utm.tif to the Arc/Info Binary Grid format using ArcMap 10 (Conversion Tools - To Raster - Raster to other Format). When I try to use <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif">GDALReadDirect.cs</code> I get the following error messages:</p>
<p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px"></p>
<pre style="margin-top:0px;margin-bottom:10px;padding:5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif;overflow:auto;width:auto;max-height:600px">
<code style="margin:0px;padding:0px;border:0px;vertical-align:baseline;font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif"><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Using</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> driver </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Arc</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">/</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Info</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Binary</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Grid</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Band</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">1</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">DataType</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GDT_Int16 </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Size</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">(</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">512</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">,</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">512</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">)</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">PaletteInterp</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GCI_Undefined </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">OverView</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">0</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">DataType</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GDT_Int16 </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Size</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">(</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">256</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">,</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">256</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">)</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">PaletteInterp</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GCI_GrayIndex </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">OverView</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">1</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">DataType</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GDT_Int16 </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">Size</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">(</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">128</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">,</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(128,0,0)">128</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">)</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">PaletteInterp</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent">:</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> GCI_GrayIndex </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(43,145,175)">The</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> number of the raster bands </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(0,0,139)">is</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> not enough to run </span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent;color:rgb(0,0,139)">this</span><span style="margin:0px;padding:0px;border:0px;vertical-align:baseline;background-color:transparent"> sample</span></code></pre>
<p></p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif">GDALReadDirect.cs</code> obviously has an erroneous method named <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif">SaveBitMapDirect</code>, that first checks on the available Color interpretation and then on the number of bands. After the file is converted to Arc/Info binary Grid format, the information about the Color interpretation is lost, so only then the program checks on the number of available bands and returns an error message. <code style="margin:0px;padding:1px 5px;border:0px;vertical-align:baseline;background-color:rgb(238,238,238);font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,serif">SaveBitMapDirect</code> works for the described case if Line 157 is edited:</p>
<p style="clear:both;vertical-align:baseline;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px"><font face="Arial, Liberation Sans, DejaVu Sans, sans-serif"><span style="font-size:14px;line-height:18px">if (redBand.GetRasterColorInterpretation() == ColorInterp.GCI_GrayIndex || redBand.GetRasterColorInterpretation() == ColorInterp.GCI_Undefined)</span></font></p>
<p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">This is not a general fix, only for the immediate problem.</p>
<p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px"><br>
</p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<br></p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
Cheers,</p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<br></p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
Markus</p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<br></p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<br></p><p style="clear:both;vertical-align:baseline;line-height:18px;font-size:14px;font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;margin:0px 0px 1em;word-wrap:break-word;border:0px;padding:0px">
<br></p></div><div><br></div></div></div><br>_______________________________________________<br>
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I set the clouds in motion - turn up | Frank Warmerdam, <a href="mailto:warmerdam@pobox.com" target="_blank">warmerdam@pobox.com</a><br>light and sound - activate the windows | <a href="http://pobox.com/~warmerdam" target="_blank">http://pobox.com/~warmerdam</a><br>
and watch the world go round - Rush | Geospatial Software Developer<br>
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