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error in a simple pro [message #55786]

Wed, 12 September 2007 16:46

yychongzi
Messages: 6
Registered: September 2007

Junior Member

Hi, I am new to ENVI and IDL, but really interested and trying to
learn.

Below is a simple pro file for reading ENVI image, but there is
something wrong with the line 'for i=0, .....' Could anyone tell me
why? Thanks a lot.

pro readenvi

envi_select, title='choose image', fid=fid, dims=dims, pos=pos
if(fid eq -1) then begin print, 'cancelled'
return
endif

envi_file_query, fid, fname = 'C:\ars\data\test'

num_cols = dims[2] - dims[1] + 1
num_rows = dims[4] - dims[3] + 1
num_bands = n_elements(pos)

image = fltarr(num_bands,num_cols,num_rows)

for i=0, num_bands -1 do image[i,*,*] = envi_get_data (fid=fid,
dims=dims, pos = pos[i])

window, 11, xsize=num_cols, ysize=num_rows, title = fname
tvscl, image[0,*,*]

print, num_cols
end

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[Message index]

		error in a simple pro By: yychongzi on Wed, 12 September 2007 16:46
		Re: error in a simple pro By: yychongzi on Thu, 13 September 2007 21:13
		Re: error in a simple pro By: yychongzi on Thu, 13 September 2007 17:56
		Re: error in a simple pro By: David Fanning on Thu, 13 September 2007 05:53
		Re: error in a simple pro By: Mort Canty on Thu, 13 September 2007 02:10
		Re: error in a simple pro By: David Fanning on Wed, 12 September 2007 20:30

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