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<p>Abel Pau,<br>
</p>
<blockquote type="cite"
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<p class="MsoNormal">Do I have to use the same to specify which
height (in file with Z) I have to offer?<o:p></o:p></p>
<p class="MsoNormal">I have three possibilities: First Z,
Highest or Lowest. I want the usem tells me what he/she wants.
<o:p></o:p></p>
<p class="MsoNormal">How can I do that? Where can I get, then,
this values?</p>
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<p>I'm not sure to understand your question. Are those height values
fields to fill in the file header? <br>
</p>
<p>If so, yes you may obviously offer layer creation options to fill
them. If those values are directly related with the Z component
of geometries of features the user writes into the file, and you
can edit the header in a post processing stage (but I believe your
strategy was to write some temporary file, before the final file,
so that should be possible), you could also possibly infer them
from the values of the features too.</p>
Even
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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