Vertex list (3,NVERT) of x, y, z coordinates for NVERT vertices of the polygons.plist
Polygon list describing NPOLY polygons. (See the POLYSHADE function for more information about this parameter.)
Constructs a surface or a solid described by a set of polygons.
Vertex list (3,NVERT) of x, y, z coordinates for NVERT vertices of the polygons.plist
Polygon list describing NPOLY polygons. (See the POLYSHADE function for more information about this parameter.)
Solid
If set, indicates that the polygon encloses a solid.
TIP: Browser viewing efficiency is enhanced by using the Solid keyword, because the browser knows to look only at the specified inside or outside of the polygon shape instead of both.
A 4-by-4 matrix containing the transformation to be applied to the object.
AmbientColor
A (3, n) array of RGB color, in the range of 0 and 255. If AmbientColor is an n-element array, then the color is interpreted as grayscale.DiffuseColor
A (3, n) array of RGB color, in the range of 0 and 255. If DiffuseColor is an n-element array, then the color is interpreted as grayscale.EmissiveColor
A (3, n) array of RGB color, in the range of 0 and 255. If EmissiveColor is an n-element array, then the color is interpreted as grayscale.MaterialIndices
An array of indices into the material property arrays in the range of 0 to n - 1, relating each polygon face to one of the set of material properties (AmbientColor, DiffuseColor, EmissiveColor, Shininess, SpecularColor, Transparency). There should be NPOLY elements in this array (one per polygon). (Default: n = NPOLY, where the set of material properties relates one-to-one to its corresponding polygon) Shininess
An n-element array of shininess, in the range of 0 to 255.SpecularColor
A (3, n) array of RGB color, in the range of 0 to 255. If SpecularColor is an n-element array, then the color is interpreted as grayscale. Transparency
An n-element array of transparency, in the range of 0 to 255.VertexColor
If set, MaterialIndices are per-vertex rather than per-polygon, so that the material properties describe each vertex, rather than describing each polygon.
This procedures allows for any polygonal shape to be drawn in a VRML world, with input parameters tailored to fit in with other PV-WAVE routines.
z = HANNING(14,8) * 10. POLY_SURF, z, vlist, plist; Build a vertex/polygon set from surface data.
VRML_OPEN, 'vrml_poly.wrl'; Open a VRML file.
VRML_LIGHT, [7, 4, 20] VRML_CAMERA, [0, -0, 20], LookAt = [7, 4, 0]; Set up a light source and an initial viewpoint.
r = BYTSCL(z(*)) g = BYTSCL(DIST(14, 8)) g = g(*) b = BYTSCL(INDGEN(14, 8)) b = b(*); Make up some RGB color values -- one color for each; element of z (thus, one color per polygon).
rgb = TRANSPOSE([[r], [g], [b]]); Put the colors into a (3, NPOLY) array.
VRML_POLY, vlist, plist, EmissiveColor = rgb; Write the surface to the VRML file.
VRML_CLOSE; Close the VRML file.
