com.klg.jclass.chart3d
Class ProcessGrid

java.lang.Object
  |
  +--com.klg.jclass.chart3d.ProcessGrid

All Implemented Interfaces:

Serializable

public class ProcessGrid

extends Object

implements Serializable

Class that controls the drawing order for a grid data set.

See Also:

Serialized Form

Field Summary

protected com.klg.jclass.chart3d.DrawGrid	drawGrid Parent DrawGrid object
protected com.klg.jclass.chart3d.Facet	facet The facet processing object
static int	MAX_POINTS The max number of points to be drawn at one time during a fast mesh draw

Constructor Summary

ProcessGrid()
Null constructor.

ProcessGrid(com.klg.jclass.chart3d.DrawGrid drawGrid)
Constructor that specifies the parent DrawGrid object.

Method Summary

protected void	drawFastMesh(Graphics gc) Draws the mesh as fast as possible.
protected void	flushLines(com.klg.jclass.chart3d.ScreenPoint[] pts, int n, Graphics gc) Draws the list of lines represented by the given point list.
protected com.klg.jclass.chart3d.DrawGrid	getDrawGrid() Get the parent DrawGrid object
protected com.klg.jclass.chart3d.Facet	getFacet() Get the facet processing object
protected void	processGrid(int iFirst, int iLast, int iDelta, int jFirst, int jLast, int jDelta, int edges) Process the rectangular portion of the grid region defined by the first and last indices in either X major or Y major order.
void	processGridRegion(com.klg.jclass.chart3d.GridRegion gridRegion) Process facets in the grid based on the order specified by gridRegion (@see GridRegion).
protected void	processX(int j0, int iFirst, int iLast, int iDelta, int edges) Process an X range for a fixed Y grid value
protected void	processXY(int iFirst, int iLast, int iDelta, int jFirst, int jLast, int jDelta, int edges) Process the grid in X major order.
protected void	processY(int i0, int jFirst, int jLast, int jDelta, int edges) Process an Y range for a fixed X grid value
protected void	processYX(int iFirst, int iLast, int iDelta, int jFirst, int jLast, int jDelta, int edges) Process the grid in Y major order.
protected void	setDrawGrid(com.klg.jclass.chart3d.DrawGrid drawGrid) Set the parent DrawGrid object
void	setFacet(com.klg.jclass.chart3d.Facet facet) Set the facet processing object

Methods inherited from class java.lang.Object

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

Field Detail

MAX_POINTS

public static final int MAX_POINTS

The max number of points to be drawn at one time during a fast mesh draw

See Also:

Constant Field Values

drawGrid

protected com.klg.jclass.chart3d.DrawGrid drawGrid

Parent DrawGrid object

facet

protected com.klg.jclass.chart3d.Facet facet

The facet processing object

Constructor Detail

ProcessGrid

public ProcessGrid()

Null constructor. Parent is null!

ProcessGrid

public ProcessGrid(com.klg.jclass.chart3d.DrawGrid drawGrid)

Constructor that specifies the parent DrawGrid object.

Parameters:

drawGrid - The parent DrawGrid object

Method Detail

getDrawGrid

protected com.klg.jclass.chart3d.DrawGrid getDrawGrid()

Get the parent DrawGrid object

Returns:

The current parent DrawGrid object

setDrawGrid

protected void setDrawGrid(com.klg.jclass.chart3d.DrawGrid drawGrid)

Set the parent DrawGrid object

Parameters:

drawGrid - The new parent DrawGrid object

getFacet

protected com.klg.jclass.chart3d.Facet getFacet()

Get the facet processing object

Returns:

The current facet processing object

setFacet

public void setFacet(com.klg.jclass.chart3d.Facet facet)

Set the facet processing object

Parameters:

facet - The new facet processing object

processGridRegion

public void processGridRegion(com.klg.jclass.chart3d.GridRegion gridRegion)

Process facets in the grid based on the order specified by gridRegion (@see GridRegion). Process the four corners first, then the four side strips, and then the center (the eye). Note that regions can be null which results in no facets being processed for that region. In fact, the entire grid could be one corner region.

Parameters:

gridRegion - The object which defines how the grid is split up into drawing regions.

processXY

protected void processXY(int iFirst,
                         int iLast,
                         int iDelta,
                         int jFirst,
                         int jLast,
                         int jDelta,
                         int edges)

Process the grid in X major order.

Parameters:

iFirst - The index of the first facet of the region in the X direction

iLast - The index of the last facet of the region in the X direction

iDelta - The X increment (could be 1 or -1)

jFirst - The index of the first facet of the region in the Y direction

jLast - The index of the last facet of the region in the Y direction

jDelta - The Y increment (could be 1 or -1)

edges - The grid region that the facet is in.

processYX

protected void processYX(int iFirst,
                         int iLast,
                         int iDelta,
                         int jFirst,
                         int jLast,
                         int jDelta,
                         int edges)

Process the grid in Y major order.

Parameters:

iFirst - The index of the first facet of the region in the X direction

iLast - The index of the last facet of the region in the X direction

iDelta - The X increment (could be 1 or -1)

jFirst - The index of the first facet of the region in the Y direction

jLast - The index of the last facet of the region in the Y direction

jDelta - The Y increment (could be 1 or -1)

edges - The grid region that the facet is in.

processGrid

protected void processGrid(int iFirst,
                           int iLast,
                           int iDelta,
                           int jFirst,
                           int jLast,
                           int jDelta,
                           int edges)

Process the rectangular portion of the grid region defined by the first and last indices in either X major or Y major order.

Parameters:

iFirst - The index of the first facet of the region in the X direction

iLast - The index of the last facet of the region in the X direction

iDelta - The X increment (could be 1 or -1)

jFirst - The index of the first facet of the region in the Y direction

jLast - The index of the last facet of the region in the Y direction

jDelta - The Y increment (could be 1 or -1)

edges - The grid region that the facet is in.

processX

protected void processX(int j0,
                        int iFirst,
                        int iLast,
                        int iDelta,
                        int edges)

Process an X range for a fixed Y grid value

Parameters:

j0 - The fixed X grid value

iFirst - The index of the first facet of the region in the X direction

iLast - The index of the last facet of the region in the X direction

iDelta - The X increment (could be 1 or -1)

edges - The grid region that the facet is in.

processY

protected void processY(int i0,
                        int jFirst,
                        int jLast,
                        int jDelta,
                        int edges)

Process an Y range for a fixed X grid value

Parameters:

i0 - The fixed X grid value

jFirst - The index of the first facet of the region in the Y direction

jLast - The index of the last facet of the region in the Y direction

jDelta - The Y increment (could be 1 or -1)

edges - The grid region that the facet is in.

flushLines

protected void flushLines(com.klg.jclass.chart3d.ScreenPoint[] pts,
                          int n,
                          Graphics gc)

Draws the list of lines represented by the given point list.

Parameters:

pts - The list of points

n - The number of points within the list to draw

gc - The graphics object used to draw

drawFastMesh

protected void drawFastMesh(Graphics gc)

Draws the mesh as fast as possible. The bottom and top mesh colors are the same, and hidden lines are being drawn, so we can just blast 'em!

Parameters:

gc - The graphics object used to draw