Using a polygon list created with Edit Polygon or 2D Object Finder, the portion of the data contained within those polygons can be cut out from the rest of the data. Either data or a binary mask can be written to the new data file.

Polygon Data

This button and text box are used to specify a list of polygons (defined using Edit Polygon or 2D Object Finder) to be used to cut image data. If you indicate an Input window that has polygons in it already, you will see a message that says "Loaded in window ".

Create Mode

Choosing Data cuts all of the data Inside or Outside of each polygon and copies it to the output destination. Choosing Mask creates an output file with only 1's and 0's either representing either the Inside or Outside of the polygons.

Area

Specify whether to act on the Inside or Outside of the polygons.

Threshold

You can specify a lower threshold in addition to the polygons. For example, you can transfer only data inside of the polygons and greater than an intensity value of 300.

Trim Output

With Trim Output On, the smallest area containing all the polygons will be the area written to the output window. With it off, the size of the file will have the same x-y dimensions as the original file, but only the part defined by polygons will have intensity.