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java.lang.Objectcom.horstmann.violet.framework.Grid
public class Grid
A grid to which points and rectangles can be "snapped". The snapping operation moves a point to the nearest grid point.
Constructor Summary | |
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Grid()
Constructs a grid with no grid points. |
Method Summary | |
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void |
draw(java.awt.Graphics2D g2,
java.awt.geom.Rectangle2D bounds)
Draws this grid inside a rectangle. |
void |
setGrid(double x,
double y)
Sets the grid point distances in x- and y-direction |
void |
snap(java.awt.geom.Point2D p)
Snaps a point to the nearest grid point |
void |
snap(java.awt.geom.Rectangle2D r)
Snaps a rectangle to the nearest grid points |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Grid()
Method Detail |
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public void setGrid(double x, double y)
x
- the grid point distance in x-directiony
- the grid point distance in y-directionpublic void draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D bounds)
g2
- the graphics contextbounds
- the bounding rectanglepublic void snap(java.awt.geom.Point2D p)
p
- the point to snap. After the call, the
coordinates of p are changed so that p falls on the grid.public void snap(java.awt.geom.Rectangle2D r)
r
- the rectangle to snap. After the call, the
coordinates of r are changed so that all of its corners
falls on the grid.
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