3D Visualization
3D Transformations & Scene Setup
CONVERT_COORD - Transforms coordinates to and from the Direct Graphics coordinate system.
COORD2TO3 - Returns 3D data coordinates given Direct Graphics normalized screen coordinates.
CROSSP - Compute the cross product of two vectors.
CV_COORD - Converts 2D and 3D coordinates between coordinate systems.
SCALE3 - Sets up axis ranges and viewing angles for Direct Graphics 3D plots.
SCALE3D - Scales a Direct Graphics 3D unit cube into the viewing area.
SET_SHADING - Sets the light source shading parameters for Direct Graphics.
SURFR - Sets up 3D transformations for Direct Graphics.
T3D - Performs various Direct Graphics 3D transformations.
VERT_T3D - Transforms a Direct Graphics 3D array by a 4x4 transformation matrix.
Polygonal Mesh Routines
COMPUTE_MESH_NORMALS - Computes normal vectors for a set of polygons.
MESH_CLIP - Clips a polygonal mesh to an arbitrary plane in space.
MESH_DECIMATE - Reduces the density of geometry while preserving as much of the original data as possible.
MESH_ISSOLID - Computes various mesh properties and determines if a mesh encloses space (is a solid).
MESH_MERGE - Merges two polygonal meshes.
MESH_NUMTRIANGLES - Computes the number of triangles in a polygonal mesh.
MESH_OBJ - Generates a polygon mesh for various simple objects.
MESH_SMOOTH - Performs spatial smoothing on a polygon mesh.
MESH_SURFACEAREA - Determines the surface area of a mesh, including integration of other mesh properties.
MESH_VALIDATE - Checks for NaN values in vertices, removes unused vertices, and combines close vertices.
MESH_VOLUME - Computes the volume that the mesh encloses.
POLYSHADE - Creates a Direct Graphics shaded surface representation from a set of polygons.
Surfaces and Contours
CONTOUR - Draws a two-dimensional contour plot for a 2D array of data.
CONTOUR Procedure - Draws a Direct Graphics contour plot.
IMAGE_STATISTICS - Computes sample statistics for an N-dimensional array.
MIN_CURVE_SURF - Interpolates points with a minimum curvature surface or a thin-plate-spline surface.
POLAR_CONTOUR - Draws a Direct Graphics contour plot from polar-coordinate data in polar coordinates.
SHADE_SURF - Creates a Direct Graphics shaded-surface from gridded data.
SHADE_SURF_IRR - Creates a Direct Graphics shaded-surface from irregularly-gridded data.
SHOW3 - Displays a Direct Graphics image, surface plot, and contour plot simultaneously.
SURFACE - Draws a 3D surface from 2D data or unstructured points.
SURFACE Procedure - Draws a Direct Graphics surface.
Tetrahedral Mesh Routines
TETRA_CLIP - Clips a tetrahedral mesh to an arbitrary plane in space.
TETRA_SURFACE - Extracts a polygonal mesh as the exterior surface of a tetrahedral mesh.
TETRA_VOLUME - Computes properties of a tetrahedral mesh array.
Vector Field Visualization
FLOW3 - Draws Direct Graphics lines representing a 3D flow/velocity field.
INTERPOL - Performs linear interpolation on vectors.
PARTICLE_TRACE - Traces the path of a massless particle through a vector field.
STREAMLINE - Draws a streamline plot.
STREAMLINE Procedure = Draws a Direct Graphics streamline plot.
VECTOR - Draws a plot of either vectors or wind barbs.
VECTOR_FIELD - Places colored, oriented vectors of specified length at each vertex in an input vertex array.
VERT_T3D - Draws a Direct Graphics velocity (flow) field with streamlines.
Volume Visualization
EXTRACT_SLICE - Returns 2D planar slice extracted from volume.
IDLgrVRML - Saves the contents of an Object Graphics hierarchy into a VRML 2.0 format file.
INTERVAL_VOLUME - Generates a tetrahedral mesh from volumetric data.
ISOSURFACE - Returns topologically consistent triangles by using oriented tetrahedral decomposition.
PROJECT_VOL - Returns a translucent rendering of a volume projected onto a plane.
QGRID3 - Interpolates the dependent variable values to points in a regularly sampled volume.
QHULL - Constructs convex hulls, Delaunay triangulations, and Voronoi diagrams.
RECON3 - Reconstructs a 3D representation of an object from 2D images.
SEARCH3D - Finds objects or regions of similar data values within a volume.
SHADE_VOLUME - Contours a volume to create a list of vertices and polygons.
SLICER3 - Interactive Direct Graphics volume visualization tool.
VOXEL_PROJ - Generates a Direct Graphics volume visualization using voxel technique.
XOBJVIEW - Displays object viewer widget.
XOBJVIEW_ROTATE - Programmatically rotate an object.
XOBJVIEW_WRITE_IMAGE - Write the XOBJVIEW object to an image file.
XVOLUME - Direct Graphics utility for viewing and manipulating volumes and isosurfaces.