Changeset 1963


Ignore:
Timestamp:
Feb 7, 2011 11:04:34 AM (6 years ago)
Author:
warmerdam
Message:

add info on verticalcs.

File:
1 edited

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  • trunk/geotiff/html/faq.html

    r1953 r1963  
    1414<H1>GeoTIFF FAQ Version 2.4</H1>
    1515
    16 <h2>Last Updated: December, 2010</h2>
     16<h2>Last Updated: February, 2011</h2>
    1717
    1818<ADDRESS>
     
    9595<li>
    9696    <A HREF="#AxisOrder">What is the Axis Order in GeoTIFF?</A>
     97<li>
     98    <A HREF="#VerticalCS">How should Vertical Datums and Vertical Coordinate Systems be encoded in GeoTIFF?</A>
    9799<li>
    98100    <A HREF="#Who are POSC and EPSG and why is GeoTIFF involved with them?">Who are POSC and EPSG and why is GeoTIFF involved with them?</A>
     
    597599
    598600<!--------------------------------------------------------------------------->
     601<H3><A NAME="VerticalCS">How should Vertical Datums and Vertical Coordinate Systems be encoded in GeoTIFF?</A></H3>     
     602
     603The GeoTIFF specification only lightly addresses vertical coordinate systems.
     604In support of .LAS format (which uses GeoTIFF tags for coordinate systems)
     605and for general GeoTIFF use there are some <a href="http://trac.osgeo.org/geotiff/wiki/VerticalCS">vertical coordinate system best practices</a> being
     606written up in the wiki. <p>
     607
     608<!--------------------------------------------------------------------------->
    599609<H3><A NAME="Who are POSC and EPSG and why is GeoTIFF involved with them?">Who are POSC and EPSG and why is GeoTIFF involved with them?</A></H3>     
    600610
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