3D Plot Types: Graphis 3D data visualization software allows the following subset of plot types to be combined together in a single graph. Many of the features listed here can only be found in significantly more expensive surface plotting software and 3D graphing software packages. Surface Plot - Regular Grid. A 3D surface is generated by associating a dependent variable value with each point on a grid with constant spacing in each independent variable direction. The grid may be cartesian, polar, cylindrical, or defined by implicit function coordinates (u, v). The curve can be defined analytically, based on entered/imported tabular data, or based on data read in from a file. The surface colour can be a single colour or based on a colourmap. By default, the colourmap colour displayed depends on surface height, but the option exists to use an arbitrary tabulated property to determine the colour associated with a surface point. A texture map (i.e an image) can optionally be overlaid on the surface. Further options include: transparency, contour display, general 3D transformation, wire frame display Surface Plot - Irregular Data. A 3D surface is generated by associating a dependent variable value with each of a set of points arbitrarily positioned in the independent variable plane. The curve can be defined analytically, or based on entered/imported tabular data. The surface colour can be a single colour or based on a colourmap. By default, the colourmap colour displayed depends on surface height, but the option exists to use an arbitrary tabulated property to determine the colour associated with a surface point. Further options include: transparency, general 3D transformation, wire frame display Bar Plot - Regular Grid.  Draws a bar of height z at each of a given curve's (x,y) points.The points are constrained to lie on a rectangular grid with constant spacing in the x and y directions. Bar Plot - Irregular Data.   Draws a bar of height z at each of a given curve's (x,y) points.The points can be arbitrarily positioned in the (x, y) plane. Error Bar Plot. Draws an error bar at each of a curve's (x,y) points Series Plot - Regular Grid.   Joins the (x, y, z) points in a curve by straight lines to form a series of (x, z) or (y, z) subcurves. The option exists to additionally draw a vertical sheet at each subcurve to produce a "waterfall" plot. The points are constrained to lie on a rectangular grid with constant spacing in the x and y directions. Series Plot - Irregular Data.   Joins the (x, y, z) points in a curve by straight lines to form a series of (x, z) or (y, z) subcurves. The option exists to additionally draw a vertical sheet at each subcurve to produce a "waterfall" plot. A given (x, z) subcurve can have arbitrary x values, but all its y points must be equal. A given (y, z) subcurve can have arbitrary y values, but all its x points must be equal. 3D Line Plot. Joins a set of points in 3D space by straight lines. The points may be defined in a cartesian, polar (theta, phi or lat,lon), or cylindrical coordinate system Text Plot. Draws a text string at each of a set of points in 3D space. The points may be defined in a cartesian, polar (theta, phi or lat,lon), or cylindrical coordinate system Scatter Plot. Draws a symbol at each of a set of points in 3D space. The points may be defined in a cartesian, polar (theta, phi or lat,lon), or cylindrical coordinate system. Up to two additional variables can be associated with each scatter point. These variables can then be visualised via the scatter point colour and/or size Wirefame Plot. A 3D see-through wireframe surface is generated by associating a dependent variable value with each point on a grid with constant spacing in each independent variable direction. The grid may be cartesian, polar, cylindrical, or defined by implicit function coordinates (u, v). Object Plot.  Draws a set of 3D objects of predefined types. Current object types include sphere, cube and cylinder, The objects are described by Graphis Object Description Language (GODL). The description can be loaded from a file or or entered interactively Mesh  Plot. Draws a general 3D mesh defined as a set of vertices and elements read in from a file with data formatted in Graphis native ascii format. Variables can be associated with the mesh vertices or elements, and the mesh colourmapped based on these variables. The option also exists to load dxf files (FACE data only).