net.talvi.puffinplot.plots

Class LineCache

java.lang.Object

net.talvi.puffinplot.plots.LineCache

public class LineCache
extends java.lang.Object

A container class to collect Path2D objects for cached plotting. This class is designed to work with equal area plots, which frequently need to draw paths that can be computationally expensive to project on-the-fly. An equal-area plot can contain both solid and dashed lines, representing points in the upper and lower hemispheres respectively. This class holds two separate collections of Path2D objects, one of which contains paths to be plotted with solid lines, and the other paths to be plotted with dashed lines. Collecting the paths in this way makes it more convenient to cache them for re-plotting when the data has not changed.

Constructor Summary

Constructors

Constructor and Description
LineCache(java.awt.Stroke solidStroke, java.awt.Stroke dashedStroke) Creates a new LineCache.

Method Summary

Modifier and Type	Method and Description
void	addPath(java.awt.geom.Path2D path, boolean solid) Adds a path to this cache.
void	draw(java.awt.Graphics2D g) Draws the paths in this cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

LineCache

public LineCache(java.awt.Stroke solidStroke,
                 java.awt.Stroke dashedStroke)

Creates a new LineCache.

Parameters:

solidStroke - the Stroke to use for drawing solid lines

dashedStroke - the Stroke to use for drawing dashed lines

Method Detail

addPath

public void addPath(java.awt.geom.Path2D path,
                    boolean solid)

Adds a path to this cache.

Parameters:

path - the path to add

solid - true to add to the solid paths, false to add to the dashed paths

draw

public void draw(java.awt.Graphics2D g)

Draws the paths in this cache.

Parameters:

g - the graphics context in which to draw the paths