For plotting function curves (y = f(x)), parametric curves(x = f(t), y = g(t)) and geometric curves (such a coast outlines). A few packages support the polar coordinate system. The data points can be plotted as symbols (sometimes called a scatter plot), by connecting the points with straight lines or interpolated curves, by shading between curves, or by drawing horizontal or verticals bars (with non-parametric data only). Error bars showing the X and/or Y error ranges around the data points can be plotted with many packages. A 2-D Cartesian graph consists of two orthogonal axes, labeling of the axes scales, axes titles and numerous other accoutrements such as grid lines, a plot title, a legend, etc. Axes scaling is usually either linear or logarithmic although other axis types are available, such as: date, time, categorical, and user-defined functions. Often the X, or horizontal axis, is called the independent axis since if it represents the independent variable of a function. The vertical, or Y axis then represents the dependent variable. For example, time is often an independent variable, plotted along the X axis, and some function of time is plotted against the dependent, or Y axis. Or, if the curve is parametric, both axes can be dependent and the parameter, t, can be marked in steps with symbols along the curve.
For plotting curves in 3D. Packages that can handle 3-D curves are usually the more general visualization tools.
Gnuplot is a command-driven interactive function plotting program. If files are given, gnuplot loads each file with the load command, in the order specified. gnuplot exits after the last file is processed. It plots any number of functions, built up of C operators, C library functions, and some things C doesn't have, such as **, sgn(), etc. It also provides support for plotting data files, to compare actual data to theoretical curves, user-defined X and Y ranges (optional auto-ranging), smart axes scaling, and smart tick marks.
For more information, see the gnuplot man page (man gnuplot), or the on-line help from within the emacs editor. A pdf manual is available ghostview/usr/local/doc/gnuplot.pdf .
Version: 3.7
Labs: Scientific Development and Visualization Lab,
Medicinal Chemistry/Supercomputing Institute Visualization-Workstation
Laboratory, Basic Sciences Computing Lab
System(s): all SGI workstations
Categories: Visualization, Isosurfaces, Contours, Graphs
Grace is a tool for 2-D plots. It is derived from Xmgr. To use, first load the grace module (module add grace), then type xmgrace.
Documentation is available from within grace.
Version: 5.1.0(gamma)
Labs:
Scientific Development and Visualization Lab
System(s): all Unix workstations
Categories: Visualization, Graphs
IBM Data Visualization Explorer (dx) is a general purpose, easy to use, visualization tool. You control dx by linking a modules together with the mouse. It can read in both structured and unstructured data in many different formats, as well as TIFF images. Once the data is read in, the individual modules handle both structured and unstructured data.
Version: 4.3.2
Labs:
Scientific Development and Visualization Lab, IBM SP,
Basic Sciences Computing Lab,
Medicinal Chemistry/Supercomputing Institute Visualization-Workstation
Laboratory
System(s): SDVL & BSCL:all SGI workstations, UM-IBM: all sp2 nodes
License: SDVL: 2 concurrent user, BSCL: 1 concurrent user, UM-IBM: 1 concurrent user
Categories: Visualization, Volume Rendering, Isosurfaces, Contours,
Graphs, Vector Fields
For sample images produced with dx at the Supercomputing Institute, a very brief introduction, and some tips and hints, see http://www.msi.umn.edu/software/dx/tutorial/index.html.
IDL (Interactive Data Language) is a widely used general purpose visualization package. With IDL, you can create graphs and visualize 2 and 3 - D data using contours, iso-surfaces and slices. IDL has image processing capabilities such as smoothing, sharpening and thresholding.
To run IDL, first load the idl module (module add idl), then type idl for a command line interface or idlde for IDL's development environment, which is a X interface to IDL.
Manuals are in the Institute's library and in pdf files in /usr/local/rsi/idl_5.4/idl/docs.
For more information, see http://www.msi.umn.edu/software/idl/tutorial/index.html.
Version:6.0
Labs:
Scientific Development and Visualization Lab, IBM SP
System(s): all UNIX workstations
License: 1 concurrent user.
Categories: Visualization, Isosurfaces, Contours, Graphs,
Image Processing
Igor is an integrated graphing and data analysis environment. It generates waves, graphs, tables, and page layouts.
Version: 1.26
Labs: Scientific Development and Visualization Lab
System(s): all Macintosh workstations
Location:Applications:Data Analysis and Display:Igor v1.2.
Categories: Visualization, Graphs, Data Analysis
Visualization software with an emphasis on image processing applications. Khoros uses a visual programming paradigm for its user interface (i.e., similar to AVS and Explorer). There are too many modules in Khoros to list here but a sample might include: a 2-D graphing module, a 3D surface/contour rendering module, dozens of 1-D and 2-D image processing modules, data importing modules, data exporting modules, etc. Khoros is based on the X Windows system (athena widgets).
Version: 1.0 p15
Labs: Scientific Development and Visualization Lab
System(s): all SGI workstations
Categories: Visualization, Isosurfaces, Contours, Graphs,
Image Processing
To use:
module load matlab (Version 7.0)
matlab
or
module load matlab/matlab13 (version 6.5)
matlab
Version: 7.0, 6.5.0
Labs:
Scientific Development and Visualization Lab, Basic Sciences Computing Lab,
Medicinal Chemistry/Supercomputing Institute Visualization-Workstation
Laboratory, Computational Genetics Laboratory
System(s): Version 6.5.0- all UNIX workstations and PCs; Version7.0- All Sun Workstations and PCs, SDVLApp1
Categories:Numerical Analysis, Symbolic Computation, Graphs
NCAR 4.1 is a library of C and FORTRAN 77 callable functions that allow applications to generate 2-D and 3-D graphics on a number of output devices, including X windows, PostScript, Tektronix 4010 and 4014 and 4107, and HP Pen Plotters and SunTools. The NCAR 4.0 library provides such functions as 2-D line and color-shaded contours with labeling, 2-D halftone contours, 2-D vector fields and streamlines, simple 2-D Cartesian graphs with linear or logarithmic scaling, histograms, 2-D and 3-D (plane projected) text in a number of fonts at any size or angle with superscripting and subscripting, 3-D mesh surfaces, 3-D contoured iso-surfaces with hidden lines removed, 3-D axes systems, 3-D curves, world-coastline, U.S. state, and world political map database, and ten cartographic projections. Contours, vector fields, streamlines, and grids can undergo map projections and can optionally be masked by continents, state, and world political boundaries (e.g., contours can be drawn over land masses only). This makes NCAR 4.1 well-suited for atmospheric applications. NCAR 4.1 also provides limited supported for animation and scrolled or stationary titles. In addition, NCAR 4.1 comes with a public domain software package called BIVAR that performs bivariant interpolation of random 2-D scalar data into a regular 2-D scalar grid. A number of man pages are available (man -k ncar ) and on line at http://ngwww.ucar.edu/ngdoc/ng4.0/ngdochome.html
Version: 4.1.1
Labs: IBM SP, Scientific Development and Visualization Lab,
Basic Sciences Computing Lab
System(s): The IBM SP and all UNIX workstations in the SDVL and BSCL
Categories: Visualization, Isosurfaces, Contours,
Graphs, Vector Fields
Plot is a basic 2D interactive graphing program. Plot can read in data stored in a 2D matrix, either binary or ascii, HDF files, and TIFF and GIF images. Text and legends can be added. A manual is available from the Technical Documentation Center.
Version:1.01.
Labs:
Scientific Development and Visualization Lab
System(s): all SGI and Macintosh workstations
License: Macintosh: 1 concurrent user. SGI: 1 concurrent user
Categories: Graphs
Tecplot is a powerful interactive plotting program for visualizing and analyzing engineering and scientific data. It integrates XY plotting with two- and three- dimensional surface data-visualization capabilities into a single easy-to-use program. Tecplot allows the user to create plots with contours, iso-surfaces, mesh lines, vectors, streamlines, light-source shaded surfaces, and scatter symbols. Tecplot manuals are available in the Institute's reference library, in /usr/local/tecplot8/doc (pdf format), and on line.
Tecplot has some built in animation capabilities which produces AVI movies or raster meta files. For raster metafiles, use rm2sun or rm2mpeg to convert these to sun image files or to a mpeg movie respectively (be sure to add the imageproc module, module add imageproc).
Version:10.0-0-7
Labs: Scientific Development and Visualization Lab, Basic Sciences
Computing Lab,
Scientific Development and Visualization Lab-sdvlapp1, Medicinal Chemistry/Supercomputing Institute Visualization-Workstation Laboratory, Altix, IBM Power4
System(s): all UNIX workstations, Unisys, PCs in SDVL and BSCL
License: Shared U site license
Categories: Visualization, Isosurfaces, Contours,
Graphs, Vector Fields, Fluid Dynamics
For more information, see http://www.msi.umn.edu/software/tecplot/tutorial/index.html.
Xmgr is the interactive program of ACE/gr. ACE/gr is an XY plotting tool for workstations or X-terminals using X. Features include Linear regression, splines, running averages, DFT/FFT, and cross/auto-correlation Documentation is available on-line from within xmgr.
To run xmgr, first load the xmgr module ( module add xmgr), and then type xmgr.
Version: 4.1.2
Labs: Scientific Development and Visualization Lab,
Medicinal Chemistry/Supercomputing Institute Visualization-Workstation
Laboratory, Basic Sciences Computing Lab
System(s): all UNIX workstations
Categories: Visualization, Graphs
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