edu.ohiou.cs456_badabing.sceneapi.visualize
Class PieChart

java.lang.Object
  edu.ohiou.cs456_badabing.sceneapi.basic.ANode
      edu.ohiou.cs456_badabing.sceneapi.visualize.PieChart

public class PieChart
extends ANode

Node that renders a Pie Chart

Description: Renders a pie chart where each slice represents numbers put in by the user.

Copyright: Copyright (c) 2008, Lev A Neiman

Company: Ohio University EECS

Field Summary

static java.awt.Color[]	colors Colors to use for different members.
private static double	d_size_mesh size of the mesh as a double.
private static double	detail controls the detail of the chart.
private java.util.HashMap<java.lang.String,java.lang.Double>	members Members of this pie chart.
private static java.util.ArrayList<Triangle>	mesh Array of triangles that comprise the mesh of the PieChart.
private static Material	mtl material properties for the pie chart.
private static boolean	need_to_build_mesh true if the mesh needs to be (re)build.
private static java.nio.FloatBuffer	normals FloatBuffer of normals (normal vectors).
static double	PI value of PI = 3.14159265;
private static double	radius radius of the chart.
private java.util.ArrayList<java.lang.Double>	slices Array of Doubles that represents shares of different slices.
private static double	thickness depth of the chart as a ratio between its radius.
private static boolean	use_vertex_arrays true if user wants to use vertex arrays.
private static boolean	vertex_arrays_supported true of this PC is capable of using vertex array.
private static int	vertexCount count of vertices * 3 in the mesh.
private static java.nio.FloatBuffer	vertices FloatBuffer of vertices.

Fields inherited from class edu.ohiou.cs456_badabing.sceneapi.basic.ANode

children, display_list, name, no_disp_list, parent, ppop, rotation, rotation_angle, scale, show, translation

Constructor Summary

PieChart()
default constructor.

Method Summary

private static void	buildMesh() builds the mesh for the PieCharts.
void	clear() clears the contents of this PieChart
static void	flipUseVertexArrays() gets called when use clicks on "Disable vertex arrays" option in menu.
java.lang.Double	get(java.lang.String a) get Double that represents share of a.
java.lang.Double	put(java.lang.String name, java.lang.Double share) Put new member into pie chart.
void	render(GLAutoDrawable panel) renders the chart.
private int	roundN3(int a) take a and round it to the next number that is divisble by 3.
static void	setTransperency(float t) changes transperency of the PieChart to t.

Methods inherited from class edu.ohiou.cs456_badabing.sceneapi.basic.ANode

addChild, countNodes, drawCube, getName, getNormal, hideTree, pushPop, renderTree, rotation, scale, setName, setParent, setPushPop, showTree, translation

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mtl

private static Material mtl

material properties for the pie chart.

PI

public static final double PI

value of PI = 3.14159265;

See Also:

Constant Field Values

slices

private java.util.ArrayList<java.lang.Double> slices

Array of Doubles that represents shares of different slices.

members

private java.util.HashMap<java.lang.String,java.lang.Double> members

Members of this pie chart.

colors

public static java.awt.Color[] colors

Colors to use for different members.

thickness

private static double thickness

depth of the chart as a ratio between its radius.

radius

private static double radius

radius of the chart.

detail

private static double detail

controls the detail of the chart. the lower it is the more triangles are drawn.

mesh

private static java.util.ArrayList<Triangle> mesh

Array of triangles that comprise the mesh of the PieChart.

need_to_build_mesh

private static boolean need_to_build_mesh

true if the mesh needs to be (re)build.

d_size_mesh

private static double d_size_mesh

size of the mesh as a double.

vertexCount

private static int vertexCount

count of vertices * 3 in the mesh.

vertices

private static java.nio.FloatBuffer vertices

FloatBuffer of vertices.

normals

private static java.nio.FloatBuffer normals

FloatBuffer of normals (normal vectors).

vertex_arrays_supported

private static boolean vertex_arrays_supported

true of this PC is capable of using vertex array.

use_vertex_arrays

private static boolean use_vertex_arrays

true if user wants to use vertex arrays.

Constructor Detail

PieChart

public PieChart()

default constructor.

Method Detail

setTransperency

public static void setTransperency(float t)

changes transperency of the PieChart to t. 0 <= t <= 1

Parameters:

t - float

put

public java.lang.Double put(java.lang.String name,
                            java.lang.Double share)

Put new member into pie chart.

Parameters:

name - String

share - Double

Returns:

Double

get

public java.lang.Double get(java.lang.String a)

get Double that represents share of a.

Parameters:

a - String

Returns:

Double

clear

public void clear()

clears the contents of this PieChart

roundN3

private int roundN3(int a)

take a and round it to the next number that is divisble by 3. if a is divisble by 3 return a.

Parameters:

a - int

Returns:

int

buildMesh

private static void buildMesh()

builds the mesh for the PieCharts.

flipUseVertexArrays

public static void flipUseVertexArrays()

gets called when use clicks on "Disable vertex arrays" option in menu.

render

public void render(GLAutoDrawable panel)

renders the chart.

Overrides:

render in class ANode

Parameters:

panel - GLAutoDrawable