Read DCW worldwide basemap file headers
dcwrhead will be removed in a future release. The VMAP0 dataset
has replaced DCW and the header data can be read using vmap0rhead.
dcwrhead
dcwrhead(filepath,filename)
dcwrhead(filepath,filename,fid)
dcwrhead(...)
hdr = dcwrhead(...)
dcwrhead allows the user to select the header
file interactively.
dcwrhead(
reads from the specified file. The combination [filepath,filename)filepath
filename] must form a valid complete file name.
dcwrhead(
reads from the already open file associated with filepath,filename,fid)fid.
dcwrhead(...) with no output arguments
displays the formatted header information on the screen.
hdr = dcwrhead(...) returns the DCW header as
a character vector.
The Digital Chart of the World (DCW) uses headers in most files to document the contents and format of that file. This function reads the header, displays a formatted version in the command window, or returns it as a character vector.
The following example uses the Macintosh file separators and path name:
dcwrhead('NOAMER:DCW:NOAMER:AE:','AEPOINT.PFT')
Aeronautical Points
AEPOINT.DOC
ID=I, 1,P,Row Identifier,-,-,
AEPTTYPE=I, 1,N,Airport Type,INT.VDT,-,
AEPTNAME=T, 50,N,Airport Name,-,-,
AEPTVAL=I, 1,N,Airport Elevation Value,-,-,
AEPTDATE=D, 1,N,Aeronautical Information Date,-,-,
AEPTICAO=T, 4,N,International Civil Organization Number,-,-,
AEPTDKEY=T, 7,N,DAFIF Reference Number,-,-,
TILE_ID=S, 1,F,Tile Reference Identifier,-,AEPOINT.PTI,
END_ID=I 1,F,Entity Node Primitive Foreign Key,-,-,
s = dcwrhead('NOAMER:DCW:NOAMER:AE:','AEPOINT.PFT')
s =
;Aeronautical Points;AEPOINT.DOC;ID=I, 1,P,Row
Identifier,-,-,:AEPTTYPE=I, 1,N,Airport
Type,INT.VDT,-,:AEPTNAME=T, 50,N,Airport Name,-,-,:AEPTVAL=I,
1,N,Airport Elevation Value,-,-,:AEPTDATE=D, 1,N,Aeronautical
Information Date,-,-,:AEPTICAO=T, 4,N,International Civil
Organization Number,-,-,:AEPTDKEY=T, 7,N,DAFIF Reference
Number,-,-,:TILE_ID=S, 1,F,Tile Reference
Identifier,-,AEPOINT.PTI,:END_ID=I 1,F,Entity Node Primitive
Foreign Key,-,-,:;This function reads all DCW files except index files (files with names ending in
'X'), thematic index files (files with names ending in
'TI'), and spatial index files (files with names ending in
'SI').
File separators are platform dependent. The filepath input
must use appropriate file separators, which you can determine using the MATLAB®
filesep function.