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strange things in CONTOUR [message #42515]

Mon, 14 February 2005 06:33

Sverre Solberg
Messages: 18
Registered: February 2005

Junior Member

Perhaps I have done a very basic and stupid error in the program below,
or there's some very mysterious explanation.

The problem in a stripped version is simply to plot a contour plot on
top of another plot. As basic as that. However, the following code does
not show the contour fields (at least not on my screen):

loadct, 0
f = dist(100, 100)
pencolor = 0
background = !D.n_colors-1
y = findgen(100)
plot, y, color = pencolor, background = background
contour, f, /overplot, color = pencolor

The mysterious part is that when I add the line:
contour, f, color = pencolor, background = background, /nodata
anywhere *before* the plot command, it works perfectly ok.

What is wrong?

(IDL 5.5 for Unix)

Sverre

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[Message index]

		strange things in CONTOUR By: Sverre Solberg on Mon, 14 February 2005 06:33
		Re: strange things in CONTOUR By: David Fanning on Mon, 14 February 2005 08:05
		Re: strange things in CONTOUR By: btt on Mon, 14 February 2005 07:57
		Re: strange things in CONTOUR By: David Fanning on Mon, 14 February 2005 06:46

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