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java.lang.Object
   |
   +----jkp.geometry.mesh.BasicMesh

Summary

public class  BasicMesh
     extends java.lang.Object
{
          // Fields 36
     public static final double DOUBLEFUDGE;
     public static final int EAST;
     public static final int MODEMANDEL;
     public static final int MODENONE;
     public static final int MODETERRAIN;
     public static final int NORTH;
     public static final int SOUTH;
     public static final int TRIDONE;
     public static final int TRIDONW;
     public static final int TRIDOSE;
     public static final int TRIDOSW;
     public static final int TRIE;
     public static final int TRIN;
     public static final int TRINE;
     public static final int TRINONE;
     public static final int TRINW;
     public static final int TRIPOINT;
     public static final int TRIS;
     public static final int TRISE;
     public static final int TRISW;
     public static final int TRIW;
     public static final int WEST;
     public GridPoint center;
     protected static double debugseamtolerance;
     public BasicMesh e;
     public BasicMesh fareast;
     public BasicMesh farnorth;
     public BasicMesh farsouth;
     public BasicMesh farwest;
     protected Grid meshgrid;
     public BasicMesh n;
     public BasicMesh s;
     public int triflags;
     protected static boolean verbose;
     protected static final boolean verify;
     public BasicMesh w;

          // Constructors 3
     public BasicMesh();
     public BasicMesh(Grid);
     public BasicMesh(BasicMesh);

          // Methods 20
     public static final String directionString(int);
     public static final int fixGridSize(int);
     public static final String flagString(int);
     public static final boolean getVerbose();
     public static final boolean isGridSizeValid(int);
     public static final void setVerbose(boolean);
     public static final boolean testFlag(int, int);

     protected final boolean checkFlags();
     protected final int countFlags();
     public final int countTriangles();
     protected final boolean flagError(int);
     public final int getFlags();
     public final Grid getGrid();
     public final GridPoint getGridPoint();
     public final BasicMesh getMesh(int);
     public final GridPoint getPoint(int);
     protected final boolean onGrid(Grid, int, int, int, int);
     public final void paint(Graphics, Component);
     public final boolean testFlag(int);
     public final String toString();
}

Version:

0.001a 4 Jul 1998

Author:

Jack Perdue j-perdue@tamu.edu si_slick@cy-net.net

Cross Reference

Extended By:

BuildableMesh

Returned By:

BasicMesh.getMesh()

   public static final double DOUBLEFUDGE

A small double for floating point imprecisions.

   public static final int EAST

Heading east from parent mesh.

   public static final int MODEMANDEL

Mandelbrot Set mode. Not used internally.

   public static final int MODENONE

Non-mode (mode hasn't been determined). Not used internally.

   public static final int MODETERRAIN

Terrain elevation mode. Not used internally.

   public static final int NORTH

Heading north from parent mesh.

   public static final int SOUTH

Heading south from parent mesh.

   public static final int TRIDONE

The NorthEast triangle of this mesh is defined by its North and East submeshes.

   public static final int TRIDONW

The NorthWest triangle of this mesh is defined by its North and West submeshes.

   public static final int TRIDOSE

The SouthEast triangle of this mesh is defined by its South and East submeshes.

   public static final int TRIDOSW

The SouthWest triangle of this mesh is defined by its South and West submeshes.

   public static final int TRIE

Mesh contains a triangle to the East.

   public static final int TRIN

Mesh contains a triangle to the North.

   public static final int TRINE

Mesh contains a triangle to the NorthEast.

   public static final int TRINONE

Mesh has not been initialized.

   public static final int TRINW

Mesh contains a triangle to the NorthWest.

   public static final int TRIPOINT

This mesh node represents a single point on the grid.

   public static final int TRIS

Mesh contains a triangle to the South.

   public static final int TRISE

Mesh contains a triangle to the SouthEast.

   public static final int TRISW

Mesh contains a triangle to the SouthWest.

   public static final int TRIW

Mesh contains a triangle to the West.

   public static final int WEST

Heading west from parent mesh.

   public GridPoint center

The point at the center of this mesh.

   protected static double debugseamtolerance

For debugging seam fix.

   public BasicMesh e

Eastern submesh

   public BasicMesh fareast

The eastern most point in this mesh.

   public BasicMesh farnorth

The northern most point in this mesh.

   public BasicMesh farsouth

The southern most point in this mesh.

   public BasicMesh farwest

The western most point in this mesh.

   protected Grid meshgrid

quick reference to parent grid (for traversing)

   public BasicMesh n

Northern submesh

   public BasicMesh s

Southern submesh

   public int triflags

Flags representing the triangulation of this mesh.

   protected static boolean verbose

Print debug info?

   protected static final boolean verify

Verify mesh? (for debug only)

   public BasicMesh w

Western submesh

Constructors

· BasicMesh

Summary  |  Top

   public BasicMesh() 

Constructs a default (empty) BasicMesh.

   public BasicMesh(Grid meshgrid) 

Constructs a Mesh using the given grid.

Parameter	Description
meshgrid	The grid to mesh/triangulate.

   public BasicMesh(BasicMesh m) 

Consructs a new BasicMesh given a preexisting BasicMesh.

Parameter	Description
m	The mesh to copy.

   protected final boolean checkFlags() 

Debug routine.

   protected final int countFlags() 

Determine how many complete triangle this mesh has.

Returns:

Number of triangles defined by this mesh.

   public final int countTriangles() 

Count all triangles in the mesh and all submeshes.

Returns:

Total number of triangles in this mesh (including submeshes).

   public static final String directionString(int direction) 

Return a string representing a direction.

Parameter	Description
direction	The direction.

Returns:

The string representation.

   public static final int fixGridSize(int gridsize) 

Test and fix a given gridsize. If grid size == 1 + 2 ^ k, returns that. If grid size == 2 ^ k, return 1 + 2 ^ k (one larger). Otherwise, returns the largest value == 1 + 2 ^ k that is less than the grid size.

Parameter	Description
gridsize	The suggested grid size.

Returns:

The repaired grid size.

   protected final boolean flagError(int tmpflag) 

Debug routine.

   public static final String flagString(int flags) 

Create a string representing a mesh's flags.

Parameter	Description
flags	The mesh's flags.

Returns:

The string representation.

   public final int getFlags() 

Get this meshes flags.

Returns:

This meshes flags.

   public final Grid getGrid() 

Get the underlying grid for this mesh.

Returns:

The underlying grid for this mesh.

   public final GridPoint getGridPoint() 

Get the gridpoint at the center of this mesh.

Returns:

The center of this mesh.

   public final BasicMesh getMesh(int dir) 

Debug routine. Get the furthest submesh in a given direction.

Parameter	Description
dir	Direction from this mesh for submesh.

Returns:

The extreme submesh (actually a point).

   public final GridPoint getPoint(int dir) 

Debug routine. Get the furthest point in a given direction.

Parameter	Description
dir	Direction from this mesh for point.

Returns:

The extreme point.

   public static final boolean getVerbose() 

Debug routine. Get the verbose mode.

Returns:

The verbose mode.

   public static final boolean isGridSizeValid(int gridsize) 

Test to see if a given grid size is valid for use by BasicMesh.

Parameter	Description
gridsize	Grid size to test.

Returns:

true if gridsize == 1 + 2 ^ k, false otherwise.

   protected final boolean onGrid(Grid terrain, 
                                  int ilo, 
                                  int ihi, 
                                  int jlo, 
                                  int jhi) 

Test to see if the center of a set of row/column values is actually on the grid.

Parameter	Description
terrain	The grid.
ilo	The min column.
ihi	The max column
jlo	The min row.
jhi	The max row.

Returns:

true if center is on the grid, false otherwise

   public final void paint(Graphics g, 
                           Component component) 

Paint the flags for this mesh.

Parameter	Description
g	The graphics context to paint to.
component	The component to paint on.

   public static final void setVerbose(boolean verbose) 

Debug routine. Set the verbose mode.

Parameter	Description
verbose	The verbose mode.

   public final boolean testFlag(int flagcode) 

Test this mesh's flags against a set of flags.

Parameter	Description
flagcode	The flags to rest.

Returns:

true if any of the flags to be tested exist in this mesh's flags, false otherwise

   public static final boolean testFlag(int flagcode, 
                                        int triflags) 

Given a mesh's flags and a set of flags to test, test.

Parameter	Description
flagcode	The flags to test.
triflags	A mesh's flag.

Returns:

true if any of the flags to be tested exist in the mesh's flags, false otherwise

   public final String toString() 

Creates a string representation of this mesh.

Returns:

The string representation of this mesh.

Overrides:

toString in class Object

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