Contents

• Introduction
  • History
  • The 1.5 Update
  • Platforms
  • Current Maintenance
  
  
• PyGist Installation
  • Windows
  • Cygwin
  
  
• User Setup and Demo
  • GISTPATH
  
  
• Python Gist Graphics
  • PyGist 2D Graphics
    • Example 1
    • Example 2
  • PyGist 3D Graphics
    • General overview of module pl3d
    • Overview of module plwf
    • Overview of module slice3
  • movie.py: PyGist 3D Animation
    • Examples
  • Function Summary
  
  
• Control Functions
  • Device Control
    • Window Control
    • Changing the Window Style Interactively
    • Hard Copy and File Control
  • Other Controls
    • animate: Control Animation Mode
    • palette: Set or Retrieve Palette
    • plsys: Set Coordinate System
    • redraw: Redraw X Window
  
  
• Plot Limits and Scaling
  • Setting Plot Limits
    • limits: Save or Restore Plot Limits
    • ylimits: Set y-axis Limits
  • Scaling and Grid Lines
    • logxy: Set Linear/ Log Axis Scaling
    • gridxy: Specify Grid Lines
  • Zooming Operations
  
  
• Two-Dimensional Plotting Functions
  • Output Primitives
    • plg: Plot a Graph
    • plmesh: Set Default Mesh
    • plm: Plot a Mesh
    • plc: Plot Contours
    • plv: Plot a Vector Field
    • plf: Plot a Filled Mesh
    • plfc: Plot filled contours
    • plfp: Plot a List of Filled Polygons
    • pli: Plot a Cell Array
    • pldj: Plot Disjoint Lines
    • plt: Plot Text
    • pltitle: Plot a Title
    • plh: Plot a Histogram
  • Plot Function Keywords
  
  
• Inquiry and Miscellaneous Functions
  • Inquiry and Editing Functions
    • plq: Query Plot Element Status
    • pledit: Change Plotting Properties
    • plremove: Remove Plot Element from Display
    • pldefault: Set Default Values
  • Miscellaneous Functions
    • bytscl: Convert to Color Array
    • histeq_scale: Histogram Equalized Scaling
    • mesh_loc: Get Mesh Location
    • mouse: Handle Mouse Click
    • moush: Mouse in a Mesh
    • pause: Pause
  
  
• Three-Dimensional Plotting Functions
  • Setting Up For 3D Graphics
    • The Plotting List
    • Functions For Setting Viewing Parameters
    • Lighting Parameters
    • Display List
  • 3D Graphics Control Functions
    • Getting a Window
    • Displaying the Gnomon
    • Plotting the Display List
    • The variable _draw3 and the idler
  • Data Setup Functions for Plotting
    • Creating a Plane
    • Creating a mesh3 argument
  • The Slicing Functions
    • slice3mesh: Pseudo-slice for a surface
    • slice3: Plane and Isosurface Slices of a 3D mesh
    • slice2 and slice2x: Slicing Surfaces with planes
  • The 3D Plotting Functions
    • plwf: plot a wire frame
    • pl3surf: plot a 3-D surface
    • pl3tree: add a surface to a plotting tree
  • Contour Plotting on Surfaces: plzcont and pl4cont
  • Animation: movie and spin3
    • The movie module and function
    • The spin3 function
  • Syntactic Sugar: Some Helpful Functions
    • Specifying the palette to be split: split_palette
    • Saving and restoring the view and lighting: save3, restore3
  
  
• Bibliography
• Acknowledgements
• Useful Functions for Developers
  • Find 3D Lighting: get3_light
  • Get Normals to Polygon Set: get3_normal
  • Get Centroids of Polygon Set: get3_centroid
  • Get Viewer's Coordinates: get3_xy
  • Add object to drawing list: set3_object
  • Sort z Coordinates: sort3d
  • Set the cmax parameter: lightwf
  • Return a Wire Frame Specification: xyz_wf
  • Calculate Chunks of Mesh: iterator3
  • Get Vertex Values of Function: getv3
  • Get Cell Values of Function: getc3
  • Controlling Points Close to the Slicing Plane: _slice2_precision
  • Scale variables to a palette: bytscl, split_bytscl
  • Return Vertex Coordinates for a Chunk: xyz3
  • Find Corner Indices of List of Cells: to_corners3
  • Timing: timer_, timer_print
  
  
• Maintenance: Things You Really Didn't Want to Know
  • The Workhorse: gistCmodule
    • Memory Maintenance: PyObjects
    • Memory Management: ArrayObjects
    • Memory Management: naked memory
    • Computing contour curves: contour
    • Computing slices: slice2, slice2x, _slice2_part
  • Some Yorick-like Functions: yorick.py
  • Additional Array Operations: arrayfnsmodule
    • Counting Occurrences of a Value: histogram
    • Assigning to an Arbitrary Subset of an Array: array_set
    • Sorting an array: index_sort
    • Interpolating Values: interp
    • Digitizing an array: digitize
    • Reversing a Two-Dimensional array: reverse
    • Obtaining an Equally-Spaced Array of Floats: span
    • Effective Length of an Array: nz
    • Finding Edges Cut by Isosurfaces: find_mask
    • Order Cut Edges of a cell: construct3
    • Expand cell-centered values to node-centered values: to_corners
  • More slice3 details
    • Standard ordering for the four types of mesh cells
    • Standard numbering of cells in a regular rectangular mesh
    • How slice3 works
  
  
• Index