A conic map projection having distances between meridians along every synchronous add up to those distances on a globe. The main geographic meridian is a straight range, whereas the others are curved while the parallels tend to be arcs of circles.
a conic projection of a map having distances between meridians equal to those distances on a globe
a projection regarding the planet's area, or any part thereof, where each slim zone is projected upon a conical surface that variations the sphere along this area, the conical surface being then unrolled. This projection varies from conic projection for the reason that latter assumes but one cone for the entire map. Polyconic projection is the fact that being used in america coastline and geodetic study.