Mapping Toolbox

Reference Data
Table 9-27 Data Almanac and Atlas Data

Function	Description
almanac	Planetary data for solar system, including Sun and Moon.
coast	World coast lines.
loadcape	Load Cape Cod digital elevation regular matrix map.
loadmoonalb	Load moon albedo image into a regular matrix map.
oceanlo	Ocean mask for worldlo.
usahi	United States vector data.
usalo	United States vector data.
usamtx	United States matrix data.
worldhi	High-resolution world vector data.
worldlo	Low-resolution world vector data.
worldmtx	World matrix map.

Table 9-28 Interface

Function	Description
grepfields	Identify matching fields in fixed record length files.
nanclip	Clip vector data with NaNs at specified pen-down locations.
rc2yx	Row and column indices to x- and y-coordinates.
readfields	Reads fields or records from a fixed file format.
readmtx	Reads a matrix stored in a file.
spcread	Read ascii file of space delimited data columns.
yx2rc	x- and y-coordinates to row and column indices.

Matrix Map Data Operations

Geoid Manipulation