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RE: The real size of Africa

From: Byron Cochrane <bcochrane@linz.govt.nz>
Date: Fri, 16 Sep 2016 06:27:18 +1200
To: Frans Knibbe <frans.knibbe@geodan.nl>, "SDW WG (public-sdw-wg@w3.org)" <public-sdw-wg@w3.org>
Message-ID: <666FB8D75E95AE42965A0E76A5E5337E15D6F121FC@prdlsmmsg01.ad.linz.govt.nz>
"there is no need for projection on a flat plane any longer"  Still a bit aspirational.  Tools are still underdeveloped to support analysis using the sphere.  (PostGIS is getting there.)  Bigger problem is that the uptake on this approach is limited.  And technically, since computer screens and other displays are still flat, it is still a type of projection.

I am afraid we are no where near being able to move away from projections.  Not sure we ever will/should be.

From: Frans Knibbe [frans.knibbe@geodan.nl]
Sent: Thursday, September 15, 2016 11:52 PM
To: SDW WG (public-sdw-wg@w3.org)
Subject: Re: The real size of Africa

Fortunately with modern techniques for displaying geographic data in a web browser there is no need for projection on a flat plane any longer. Something like this<https://cesiumjs.org/Cesium/Apps/HelloWorld.html> is what should hang on the wall in school classes.


On 15 September 2016 at 13:06, Linda van den Brink <l.vandenbrink@geonovum.nl<mailto:l.vandenbrink@geonovum.nl>> wrote:

A nice article with very helpful illustrations to explain the problem of projections, in particular Mercator.

Linda van den Brink
Adviseur Geo-standaarden

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Received on Thursday, 15 September 2016 18:33:41 UTC

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