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Quadrangles and Areas on Spheroids

Find areas bounded by meridians or parallels, find quadrangles surrounding points

A quadrangle is a polygon that is bounded by two meridians and two parallels. Use these functions to calculate surface areas of polygons on spheroids and to find quadrangles surrounding points, lines, and polygons.

Functions

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Areas on Spheroids

`areaint`	Surface area of polygon on sphere or ellipsoid
`areaquad`	Surface area of latitude-longitude quadrangle
`areamat`	Surface area covered by nonzero values in binary data grid

Quadrangles

`geoquadline`	Geographic quadrangle bounding multi-part line
`geoquadpt`	Geographic quadrangle bounding scattered points
`ingeoquad`	True for points inside or on lat-lon quadrangle
`intersectgeoquad`	Intersection of two latitude-longitude quadrangles
`outlinegeoquad`	Polygon outlining geographic quadrangle
`bufgeoquad`	Expand limits of geographic quadrangle

Topics

Measure Area of Spherical Quadrangles
A quadrangle is a region bounded by parallels north and south, and meridians east and west.