Defining the clip region by selecting a script subset file

You can create several clip regions on the same image. When you create a text file containing the coordinates and the output file name, Focus automatically produces the series of subset files.

The following procedures follow step 7 in Clipping and subsetting images.

In the Define Clip Region area, choose Select a Script Subset File from the Definition Method list box.
Choose one of the following formats from the Coordinate Type list box:
- Raster extents: if the clip region is defined by identifying upper-left and lower-right pixel and line coordinates.
- Geocoded extents: if the clip region is defined by identifying the georeferenced coordinates of the upper-left and lower-right corners.
- Long/Lat extents: if the clip region is defined by identifying the geographic coordinates of the upper-left and lower-right corners.
- Raster offset/size: if the clip region 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 line in length.
- Geocoded offset/size: if the clip region 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's coordinate system.
Choose the text file containing the coordinates and the output file names from the File list box. If the file is not listed, click Browse and choose a file from the File Selector window.
Click Clip. You can verify for errors in the Focus Message Center.