read geo
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Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: > 1.02
Description Read the data and metadata from a Geo-Aware file. This function relies on GDAL > 1.8. This function nominally supports all formats GDAL can read, though it uses the native davinci reader first before trying GDAL.
Arguments and Return Values Arguments: File name Return Value: A davinci Geo-Struct with the data
Usage Syntax: read_geo(filename [,data=BOOL][,struct=BOOL][,raw=BOOL][,subdata=INT][,band=INT]) filename - input full path to data data - return the data (Default=1) struct - return the struct (Default=1) raw - return the raw gdalinfo (Default=0) subdata-specify the number of the subdataset to read (Default is -32768). If none is specified it will be treated as if there are no subdatasets. If subdatasets exist and a subdata # is not specified the list of subdatasets is returned band - read only the specified band 0=All (Default=0)
Examples dv> a=read_geo($DV_EX+"/I01001001.cub")
Downloading...........................................done.
anc: struct, 11 elements
wkt: Text Buffer with 12 lines of text
1: PROJCS["SIMPLE_CYLINDRICAL MARS",
2: GEOGCS["GCS_MARS",
3: DATUM["D_MARS",
4: SPHEROID["MARS",3396190,0]],
5: PRIMEM["Reference_Meridian",0],
6: UNIT["degree",0.0174532925199433]],
7: PROJECTION["Equirectangular"],
8: PARAMETER["latitude_of_origin",0],
9: PARAMETER["central_meridian",0],
10: PARAMETER["standard_parallel_1",0],
proj4: "'+proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +a=3396190 +b=3396190 +units=m +no_defs '"
origin: 1x2x1 array of double, bsq format [16 bytes]
pixel_size: 1x2x1 array of double, bsq format [16 bytes]
x: 186699.0000
y: -3541.000000
lat: 1x5x1 array of float, bsq format [20 bytes]
lon: 1x5x1 array of float, bsq format [20 bytes]
lpo: 1x5x1 array of float, bsq format [20 bytes]
spo: 1x5x1 array of float, bsq format [20 bytes]
center: 2x1x1 array of float, bsq format [8 bytes]
ignore: -3.402822655e+38
projection: "Equirectangular"
spheroid: struct, 3 elements
name: "MARS"
radius: "3396190"
iflattening: "0"
resolution: 100.0000000
x: 186699.0000
y: -3541.000000
ul: 2x1x1 array of float, bsq format [8 bytes]
ur: 2x1x1 array of float, bsq format [8 bytes]
ll: 2x1x1 array of float, bsq format [8 bytes]
lr: 2x1x1 array of float, bsq format [8 bytes]
w: 661
h: 2391
data: 661x2391x10 array of float, bsq format [63,218,040 bytes]
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Recent Library Changes Created On: 04-11-2013 |
