A subset-script file specifies the coordinates and output file names when you want to create several, separate, subset areas using the same definition.
The subset area is defined by identifying upper-left and lower-right pixel and line coordinates. The format for listing the coordinates and output file name is as follows:
[ul_x] [ul_y] [lr_x] [lr_y] [path and file name]
ul_x: pixel coordinate for the upper-left corner of the subset area
ul_y: line coordinate for the upper-left corner of the subset area
lr_x: pixel coordinate for the lower-right corner of the subset area
lr_y: line coordinate for the lower-right corner of the subset area
For example:
82 115 254 302 C:\Clip1.pix 23 56 87 123 C:\Clip2.pix
The subset area is defined by identifying the georeferenced coordinates of the upper-left and lower-right corners. The format for listing the coordinates and output file name is as follows:
[ul_x] [ul_y] [lr_x] [lr_y] [path and file name]
ul_x: x coordinate for the upper-left corner of the subset area using the same projection as the input file
ul_y: y coordinate for the upper-left corner of the subset area using the same projection as the input file
lr_x: x coordinate for the lower-right corner of the subset area using the same projection as the input file
lr_y: y coordinate for the lower-right corner of the subset area using the same projection as the input file
For example:
433000.000 5876000.000 443000.000 5873000.000 C:\Clip1.pix 432567.973 5876348.000 435685.342 5874343.341 C:\Clip2.pix
The subset area is defined by identifying the geographic coordinates of the upper-left and lower-right corners. The extents can be defined using various formats, such as those in the following example. For more information, see LONG/LAT INPUT.
[ul_x] [ul_y] [lr_x] [lr_y] [path and file name]
ul_x: longitude value for the upper-left corner of the subset area
ul_y: latitude value for the upper-left corner of the subset area
lr_x: longitude value for the lower-right corner of the subset area
lr_y: latitude value for the lower-right corner of the subset area
For example:
117d46'10"W 33d44'55"N 117d40'10"W 33d38'55"N C:\Clip1.pix 117d35'22"W 33d40'30"N 117d30'22"W 33d33'30"N C:\Clip2.pix
The subset area is defined by identifying the pixel and line coordinates of the upper-left corner and providing the number of pixels in width and the number of lines in length.
[ul_x] [ul_y] [width] [height] [path and file name]
ul_x: pixel coordinate for the upper-left corner of the subset area
ul_y: line coordinate for the upper-left corner of the subset area
width: number of pixels from the upper-left corner to the upper-right corner of the subset area
height: number of lines from the upper-left corner to the lower-left corner of the subset area
For example:
34 56 400 400 C:\Clip1.pix 135 127 300 100 C:\Clip2.pix
The subset area is defined by identifying the georeferenced coordinates of the upper-left corner and providing width and length in the units of measurement of the input file's coordinate system.
[ul_x] [ul_y] [width] [height] [path and file name]
ul_x: x coordinate for the upper-left corner of the subset area using the same projection as the input file
ul_y: y coordinate for the upper-left corner of the subset area using the same projection as the input file
width: distance from the upper-left corner to the upper-right corner of the subset area.
height: distance from the upper-left corner to the lower-left corner of the subset area.
For example:
433000.000 5876000.000 300.000 300.000 C:\Clip1.pix 32567.973 5876348.000 1500.000 2500.000 C:\Clip2.pix
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