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<p>Hello,</p>
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<p>I translated Frank Warmerdam's tilted perspective projection to
JS 2 months ago and I was trying to make it work in Openlayers. I
just copied his implementation, adapting it to the proj4js
interface. Now I realize that the variable world extent that this
projection uses is very impractical in Openlayers, so I am
wondering</p>
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<li>What is the reason for the variable world extent? It varies
with the height, being larger for larger heights</li>
<li>Should this projection in proj4js work the same way as PROJ.7?</li>
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<p>Any advice would be greatly appreciated</p>
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<pre class="moz-signature" cols="72">--
Momtchil Momtchev <a class="moz-txt-link-rfc2396E" href="mailto:momtchil@momtchev.com"><momtchil@momtchev.com></a>
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