Some of Phil's and Andre's words require correction:
Just because it is so simple mathematically, the Plate Carree (or
equi-rectangular) projection is no less of a projection than others.
Like /all /projections, it has its distortions and yet it preserves some
geometrics. It is in the class known as "equidistant" projections. In
this particular case, scale is preserved along the equator /and/ at all
points on the map in a direction perpendicular to the equator. (Pretty
impressive for something so simple, eh?)
Martin Feuchtwanger [email protected] 604-254-0361
http://members.shaw.ca/geomatics.developer
On 10/06/2013 2:22 PM, Phil Scadden wrote:
There is nothing to stop you however from treating lat/long as
rectangular coordinates and using that as a "projection". The
projection figure is Plate Carree and /this has no redeeming
cartographic features as a projection/.
On 10/06/2013 8:44 AM, Andre Joost wrote:
What you see on the screen, is in fact projected, but with a simple
one degree = one unit on the screen projection. The extent of that map
is still ± 180°/90°
/This "projection" has none of the benefits usual projection have,
like true areas, true angles or true lenghts. /
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