Creates a VRML surface plot based on PV-WAVE variables.
A 2D array containing the values that make up the surface. If x and y are supplied, the surface is plotted as a function of the x, y locations. (See the SURFACE and CONTOUR routines for more information.)x
(optional) A 1D or 2D array specifying the x-coordinates of the data.y
(optional) A 1D or 2D array specifying the y-coordinates of the data.
A 3-element array of [x, y, z] position for a light source, in normal coordinates (0 to 1 is the normalized range). Title
A string specifying the plot title.Transform
A 4-by-4 matrix containing the transformation to apply to the object.XTitle
A scalar string specifying the X-axis title.YTitle
A scalar string specifying the Y-axis title.ZTitle
A scalar string specifying the Z-axis title.
NOTE: The x, y, z data are scaled into a unit cube, so that the axes for the graphic fall within the range of 0 to 1 for all three axes. Use Transform to move the cube around, stretch it, and so on.
x = FINDGEN(21) - 10.0 x = x # REPLICATE(1, 21) y = TRANSPOSE(x); Create 2D arrays of x- and y-coordinates.
z = x * SIN(y) + y * COS(x); Evaluate a function of x and y for the surface.
VRML_OPEN, 'vrml_surf.wrl'; Open the VRML file.
VRML_CAMERA, [1, -3, 1], $
LookAt=[.5, .5, .5]
; Set an initial viewpoint.
VRML_SURFACE, z, x, y, ZTitle = 'f(x, y)', $
Title = 'f(x, y) = x*sin(y) + y*cos(x)'
; Write the surface to the VRML file.
VRML_CLOSE; Close the VRML file.
