Hello Frank, <div><br></div><div><br></div><div>I am reading libtiff manual and it is possible to write different IFD (directories, I do not know the correct word) in the same tiff file using <span class="Apple-style-span" style="font-family: 'Times New Roman'; font-size: medium; "><b>TIFFWriteDirectory </b>function. Is it possible to use it in gdal library?</span></div>
<div><font class="Apple-style-span" face="'Times New Roman'" size="3"><br></font></div><div><font class="Apple-style-span" face="'Times New Roman'" size="3"><br></font></div><div><font class="Apple-style-span" face="'Times New Roman'" size="3">Many thanks,</font></div>
<div><font class="Apple-style-span" face="'Times New Roman'" size="3"><br></font></div><div><font class="Apple-style-span" face="'Times New Roman'" size="3"><br></font></div><div><font class="Apple-style-span" face="'Times New Roman'" size="3">Jorge<br>
</font><br><div class="gmail_quote">2011/5/17 Jorge Martin <span dir="ltr"><<a href="mailto:jormarfe@gmail.com">jormarfe@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im"><span style="border-collapse:collapse;font-family:arial, sans-serif;font-size:13px">Hello Frank,<div><br></div><div> TIFF 6.0 specifications has a sub-section in page 16 which is called "Multiple Image per TIFF file" and there is only a description of this issue but anything about its implementation:</div>
<div><br></div><div> "There may be more than one IFD in a TIFF file. Each IFD defines a subfile. One potential use of subfiles is to describe related images, such as the pages of a facsimile transmission. A Baseline TIFF reader is not required to read any IFDs beyond the first one."</div>
<div><br></div><div> Is it possible to implement it?</div><div><br></div><div><br></div><div>Best Regards,</div></span><br></div><div><div></div><div class="h5"><div class="gmail_quote">2011/5/17 Frank Warmerdam <span dir="ltr"><<a href="mailto:warmerdam@pobox.com" target="_blank">warmerdam@pobox.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>On 11-05-16 07:08 PM, Jorge wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello,<br>
<br>
<br>
Many thanks for your help, but if I want to generate a tiff file which contains<br>
multiples images, How I can do it using gdal? because I know that tiff standard<br>
allows to generate multiple images in a single tiff file.<br>
</blockquote>
<br></div>
Jorge,<br>
<br>
I have skimmed the GeoTIFF driver and it does not seem to support creating<br>
multi-image files (with special exceptions for overviews and masks). I<br>
thought maybe I had implemented a mechanism to add new images to an existing<br>
GeoTIFF file but apparently not.<br>
<br>
Best regards,<br><font color="#888888">
-- <br>
---------------------------------------+--------------------------------------<br>
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 Programmer for Rent</font><div><div></div><div><br>
<br>
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</div></div></blockquote></div><br></div>