grid Documentation

grid - Draw a grid on a cube
GRID will draw a rectangular or map projection grid on a cube,
alternating a high and low pixel along the lines so that the lines can
be seen through any type of feature.

PROGRAMMER: Kay Edwards, U.S.G.S., Flagstaff, AZ

Input cube file name
  (default extension is .cub)

NONE

Input subcube specifier

" "

Output cube name
  (default extension is .cub)

NONE

MAP or RECT

The following parameters are
for the MAP option:

MAP

Latitude range
  (default=input)

--

Longitude range
  (default=input)

--

Latitude line increment

30.

Longitude line increment

30.

Latitude increment while
creating longitude lines

0.

Longitude increment while
creating latitude lines

0.

Temporary file for grid points
(Automatically deleted)

"grid_temp.dat"

Temporary file for grid sort
(Automatically deleted)

The following parameters are
for the RECT option:

"grid_sort.dat"

Starting sample of grid

--

Starting line of grid

--

Number of samples in grid

--

Number of lines in grid

--

Sample increment of grid

--

Line increment of grid

**End of special parameters**

--

High dn value of grid

254.

Low dn value of grid

254.

Output pixel type

0

Minimum and maximum
output pixel range

0,0

Comment to user

" "

ADDITIONAL NOTES:

Parm	Description
FROM	Input cube file name. If the file extension is omitted, then ".cub" will be assumed.
SFROM	SFROM specifies the subcube using a single string for all three dimensions of the cube. The order of the three dimensions is always samples, lines, and bands and each dimension is separated by a colon, "samples:lines:bands". If a dimension is left blank, all the data for that dimension is selected. Therefore, the null string (" ") selects the entire cube. To select specific data from any dimension, list the dimension numbers you want. For example, "10-100:11,12:1-10", will select samples 10-100 inclusive, lines 11 and 12, and bands 1-10 inclusive. "(2):(2)" will select every other sample and line, all the bands and all the backplanes. For more examples and explanation of the many features of the SFROM parameter, refer to Introduction To ISIS, Section 6, of the ISIS User's Manual.
TO	Input cube file name. If the file extension is omitted, then ".cub" will be assumed.
OPTION	This parameter allows the user to select either a rectangular grid (RECT) or a grid based on the mapping parameters in the labels (MAP).
LAT	This parameter will be used when OPTION=MAP. This is the latitude range of the grid. The default is the range on the input cube.
LON	This parameter will be used when OPTION=MAP. This is the longitude range of the grid. The default is the range on the input cube.
LATINC	This parameter will be used when OPTION=MAP. This is the increment of the latitude lines. The default is set 30 degrees which is a reasonable spacing for a global image.
LONINC	This parameter will be used when OPTION=MAP. This is the increment of the longitude lines. The default is set 30 degrees which is a reasonable spacing for a global image.
LATC	This parameter will be used when OPTION=MAP. This is the the frequency of latitude points to be plotted along a line of longitude. If this value is too high, the grid will not be continuous.
LONC	This parameter will be used when OPTION=MAP. This is the the frequency of longitude points to be plotted along a line of latitude. If this value is too high, the grid will not be continuous.
TEMP	This is a temporary file created by the program which contains unsorted the line and sample positions of every grid point. This file is automatically deleted by the program.
SORT	This is a temporary file created by the program which contains sorted the line and sample positions of every grid point. This file is automatically deleted by the program.
HI	The grid will be drawn alternating HI and LO dn values so that the grid will be visible through any type of feature. The default is set to a reasonable value for 8-bit cubes since they are the ones that are normally sent to the film-writer.
LO	See HI
OTYPE	Output pixel data type. Permitted values are: 0 - output type is same as input file pixel type 1 - 8-bit (integer with type conversion parameters) 2 - 16-bit (integer with type conversion parameters) 3 - 32-bit (floating point) When processed data are being written back into the input file, the output pixel type must be the same as the existing pixel type in the input file.
ORANGE	Output pixel data range. If the output pixel type is 1 (8-bit integer with type conversion parameters) or 2 (16-bit integer with type conversion parameters), then the type conversion parameters in the output file will be set to values that allow representing the specified range of output values. Output values outside this range will be stored as the special "representation saturation" value. The ORANGE parameter is ignored if the output pixel type is 3 (32-bit floating point) since type conversion parameters are not applicable to floating point pixel values. If both ORANGE(1) and ORANGE(2) are 0.0, then the type conversion parameters in the output file will automatically be set to allow representing the same range of values as can be represented in the input file. (The user will be required to supply a specific range for ORANGE if the input pixel type is 3 (32-bit floating point) and the output pixel type is 1 (8-bit with type conversion parameters) or 2 (16-bit with type conversion parameters)).
USERNOTE	Comment specified by the user that will be written to the log file and history.