<div dir="ltr">Thanks Even.<div><br></div><div>I might be able to find some time to do the SWIG work depending upon the amount of development time needed. I am a long time developer with experience in Java, C, and C++ (but have not used SWIG before). Is it just a few signatures I need to write or do I need to write full support for a GDALDimension class? Can you comment on this?</div><div><br></div><div>Am I right in understanding that, as of the current Java implementation, one really can't use MDArrays for much? Like if I can't find the number of (... z planes, t steps, channels, etc.) of data I will not be able to reconstruct the data?</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jun 3, 2023 at 6:09 AM Even Rouault <<a href="mailto:even.rouault@spatialys.com">even.rouault@spatialys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Barry,</p>
<p>This method is indeed not available currently in the Java
bindings. It is only available currently in the Python bindings
(see
<a href="https://github.com/OSGeo/gdal/blob/master/swig/include/MultiDimensional.i#L159" target="_blank">https://github.com/OSGeo/gdal/blob/master/swig/include/MultiDimensional.i#L159</a>
) , since it requires writing a specific SWIG typemap for each
binding language when a method returns (or takes as argument) a
new non-primitive type such as here, with an array of dimensions.
The closest existing Java typemap I found that can be used to take
inspiration from is
<a href="https://github.com/OSGeo/gdal/blob/master/swig/include/java/typemaps_java.i#L235" target="_blank">https://github.com/OSGeo/gdal/blob/master/swig/include/java/typemaps_java.i#L235</a>
but there would be changes to call the "Dimension(long cPtr,
boolean cMemoryOwn)" constructor. Whether you want to try to
tackle that yourself or not, you may create a ticket about that</p>
<p>Even<br>
</p>
<div>Le 03/06/2023 à 09:09, Barry DeZonia a
écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">On a related note is the Java api code in a public
repo somewhere? It would be helpful to look at that code
sometimes. (Like is GetDimensions() present in the Java code but
not exposed as a public method?)</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Jun 3, 2023 at
12:18 AM Barry DeZonia <<a href="mailto:bdezonia@gmail.com" target="_blank">bdezonia@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote">
<div dir="ltr">Hi all,
<div><br>
</div>
<div>I have access to an MDArray. I am trying to find its
dimensions. In the C++ API I can see that GDALMDArray has
a method called GetDimensions() to find the info I need.
But I am programming in Java and the Java API does not
show such a call for MDArray. Is there some way in Java to
find the info I need?</div>
</div>
</blockquote>
</div>
<br>
<fieldset></fieldset>
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