The two-dimensional array to display.
Standard Library procedure that displays a two-dimensional array as acombination contour, surface, and image plot. The resulting display shows a surface with an image underneath and a contour overhead.
The two-dimensional array to display.
The angle of rotation, in degrees, about the x-axis.Az
The angle of rotation, in degrees, about the z-axis.Bot_Image
The name of the image array to be used as the underneath image.C_Colors
A vector of color indices whose elements indicate which color to use in drawing the corresponding contour level.Interp
If present and nonzero, specifies that bilinear interpolation is to be used for the pixel display. Otherwise, the nearest neighbor interpolation method is used.Sscale
The reduction scale for the surface. If set to anything other than 1 (the default value), the image size is reduced by the specified factor. If the image dimensions are not an integral multiple of Sscale, the image is reduced to the next smaller multiple.
TIP: When you are displaying larger images (say 50-by-50), the display produced by SHOW3 can become too "busy." If this happens, try using the SMOOTH and/or REBIN procedures to smooth the surface plot.
CAUTION: The SHOW3 procedure is not supported on Tektronix terminals or the 4510 Rasterizer. If you try to display a SHOW3 image on such a device, PV-WAVE may abort. This is because of a limitation in the range of image coordinates available on Tektronix devices.
wavedir
/datawavedir:[DATA]
wavedir\data
wavedir is the main PV-WAVE directory.
OPENR, 1, !data_dir + 'pikeselev.dat'
pikes = FLTARR(60, 40)
READF, 1, pikes
CLOSE, 1
OPENR, 2, !data_dir + 'snowpack.dat'
snow = FLTARR(60, 40)
READF, 2, snow
CLOSE, 2
LOADCT, 5
SHOW3, SMOOTH(pikes, 3), Bot_image=snow, /Interp
Figure 2-115 Combination image, surface, and contour produced with SHOW3.
Figure 2-116 Combination image, surface, and contour produced with SHOW3.
For information on interpolation methods, see Efficiency and Accuracy of Interpolation in Chapter 6 of the PV-WAVE User's Guide.
