thm.corners

Contents: Description, Arguments, Usage, Examples, Images, Related Functions Supported Under Version: >1.69 Current Davinci Version: 2.27 64-bit Safe: No Description Find the corner pixels of a projected THEMIS image Arguments and Return Values Arguments: A THEMIS data array and an ignore value Return Value: A 8x1x1 array containing the x and y values of the four corners Usage Syntax: thm.corners(image = VAL [, ignore = VAL]) 'image' is a 1 band geometrically projected THEMIS image 'ignore' is the value of pixels without valid data If an image is passed with more than one band, corners will only use the first band. The return values are: X value of upper left corner Y value of upper left corner X value of upper right corner Y value of upper right corner X value of lower left corner Y value of lower left corner X value of lower right corner Y value of lower right corner Examples dv> a 1356x7100x1 array of float, bsq format [38,510,400 bytes] dv> b = thm.corners(a,ignore=-32768) 1x8x1 array of int, bsq format [32 bytes] 967 11 1293 30 22 7081 339 7098 Images Note: The corners above do not match this image because it was resized for viewing in web browser

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