<quote who="David Earl"> > In Mercator distance is constant independent of orientation, isn't it?
Wrong. Quoting Wikipedia: "While the direction and shapes are accurate on a Mercator projection, it distorts the size." In other words, the Mercator projection is conformal, but not equidistant. In other words, it preserves shapes while deforming distances and areas greatly. I think that your question really is in the lines of: In Mercator, *in a small area*, the vertical scale is the same as the horizontal scale, which is the same as any diagonal scale? The answer is "yes". (You'll still suffer from a very tiny deformation, something like 1/100000 perhaps - the smaller the area you're working in, the smaller the deformation you'll be suffering from. And I think that's true for most map projections.) -- Iván Sánchez Ortega <[EMAIL PROTECTED]> Un ordenador no es un televisor ni un microondas, es una herramienta compleja. _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
