Lambert vs. Lambert Standard
조회 수: 4(최근 30일)
The Mapping Toolbox has two definitions for the Lambert Conformal Conic Projection: lambert and lambertstd. What is the difference and which one is more commonly used? I have read and understood the documentation:
LAMBERTSTD Implements the Lambert Conformal Conic projection directly on a reference ellipsoid, consistent with the industry-standard definition of this projection.
LAMBERT is an alternative implementation based on rotating the authalic sphere.
What is odd is that nowhere else have I found an explicit indication that there are two definitions for the Lambert projection. I have also found that the two versions of this projection can, in some cases, result in very different coordinates. It would help if somebody could provide more information about why Matlab chose to include two definitions for the Lambert.
Rob Comer 2020년 1월 28일
Typically, one would use lambertstd, especially if unprojecting an external dataset from x-y (easting-northing) to latitude-longitude, but lambert remains available for compatibility with older code. For the purpose of pure visualization, either can be used.