org.openstreetmap.josm.data.osm.visitor.paint

Class ArrowPaintHelper

java.lang.Object

org.openstreetmap.josm.data.osm.visitor.paint.ArrowPaintHelper

public class ArrowPaintHelper
extends java.lang.Object

This class helps with painting arrows with fixed length along a path.

Since:

10827

Field Summary

Fields

Modifier and Type	Field and Description
private double	cos
private double	length
private double	sin

Constructor Summary

Constructors

Constructor and Description
ArrowPaintHelper(double radians, double length) Creates a new arrow helper.

Method Summary

Modifier and Type	Method and Description
double	getOnLineLength() Gets the length of the arrow along the line segment.
void	paintArrowAt(MapPath2D path, MapViewState.MapViewPoint point, MapViewState.MapViewPoint fromDirection) Paint the arrow

Methods inherited from class java.lang.Object

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

Field Detail

sin

private final double sin

cos

private final double cos

length

private final double length

Constructor Detail

ArrowPaintHelper

public ArrowPaintHelper(double radians,
                        double length)

Creates a new arrow helper.

Parameters:

radians - The angle of the arrow. 0 means that it lies on the current line. In radians

length - The length of the arrow lines.

Method Detail

paintArrowAt

public void paintArrowAt(MapPath2D path,
                         MapViewState.MapViewPoint point,
                         MapViewState.MapViewPoint fromDirection)

Paint the arrow

Parameters:

path - The path to append the arrow to.

point - The point to paint the tip at

fromDirection - The direction the line is coming from.

getOnLineLength

public double getOnLineLength()

Gets the length of the arrow along the line segment.

Returns:

the length along the line

Since:

12154