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cntour02
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1997-07-08
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760b
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26 lines
; This batch file creates a contour plot used as an example in
; Chapter 11, "Plotting Multi-dimensional Arrays", of _Using IDL_.
; Restore variables elev, X, and Y.
@cntour01
; Set missing data points to a large value.
elev(WHERE(elev EQ 0)) = 1E6
; REBIN down to a 72 x 92 matrix.
new = REBIN(elev, 360/5, 460/5)
; Make the plot, specifying the contour levels, missing data value,
; linestyles, etc. Set the STYLE keywords to 1, obtaining exact axes.
CONTOUR, new, X, Y, LEVELS = 2750 + FINDGEN(6) * 250., $
XSTYLE = 1, YSTYLE = 1, YMARGIN = 5, MAX_VALUE = 5000, $
C_LINESTYLE = [1, 0], $
C_THICK = [1, 1, 1, 1, 1, 3], $
TITLE = 'Maroon Bells Region', $
SUBTITLE = '250 meter contours', $
XTITLE = 'UTM Coordinates (KM)'