Last modified August 3, 2007
Print all topics in : "Supported map projections"
A conformal projection.
Planar perspective projection, viewed from the point on the globe opposite the point of tangency. Points are transformed from the spheroid to a Gaussian sphere before being projected to the plane.
All meridians and parallels are shown as circular arcs or straight lines. Graticular intersections are 90°. In the equatorial aspect, the parallels curve in opposite directions on either side of the equator. In the oblique case, only the parallel with the opposite sign to the central latitude is a straight line; other parallels are concave toward the poles on either side of the straight parallel.
A single point anywhere on the globe.
Polar aspect—all meridians.
Equatorial aspect—the central meridian and the equator.
Oblique aspect—the central meridian and parallel of latitude with the opposite sign of the central latitude.
Normally limited to one hemisphere. Portions of the outer hemisphere may be shown, but with rapidly increasing distortion.
Used for large-scale coordinate systems in New Brunswick and the Netherlands.