Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
There is a new version of look.pro at http://idlastro.gsfc.nasa.gov:80/ftp/contrib/knight/look.pro The file is about 121k long, so I attach an excerpt from the header below. The new version has a number of improvements, including improved sliders, better catalog/blink/movie selection, intrinsic Postscript printing, and better help. As always, I appreciate feedback---either pro or con. Fred ;+ ; Name: ; look ; Purpose: ; This procedure produces a widget to view an image or series of images. ; o You roam in a grid of 2x2 windows with menus on three sides. ; o The plots are dynamic: horizontal and vertical cuts are updated ; as you move the mouse over the full and zoom images. ; o Zoom by dragging the left mouse over the full image. ; o Select numerous options in the Options menu, ; o Look is extensible ... ; ... ; ; Examples: ; look ; 1) Test with test images ; images = randomu(seed,10,10,100) ; look,images ; 2) Display series of 2-D images ; look,/noload ; 3) Use existing images from common ; common look ; 4) To access the stored images at main level ; look,/help ; 5) Just display the look.pro header ; look,/assoc ; 6) Use an associate variable; prompt for ; ; file and definition of variable. ; ; OR ; file = 'existing_file' ; definition = 'intarr(128,128)' ; look,/assoc,file=file,definition=definition ; ; The associate variable can have ; ; additional variables---with a tag. ; definition = '{struct,header:bytarr(100),data:intarr(128,128)}' ; ; Up to v3.6, the structure has to be named! ; look,/assoc,tag=1,file=file,definition=definition ; ; use tag #1 (data) in the structure ; look,loader_name='getdata',dimensions=[3,4,5] ; ; 7) Use getdata.pro to obtain the set of ; ; 3x4x5 images, ; ; each of size returned by getdata. ; ; Here 3 dimension sliders will be used. ; look,procedures='process' ; ; 8) Add processing procedures, e.g., to use ; ; YOUR OWN process.pro to ; ; modify the current image. ; look,functions=['roberts','sobel'] ; ; 9) Add edge filters to Options menu ;