Package org.mapsforge.map.layer.overlay

Class Polyline

java.lang.Object

org.mapsforge.map.layer.Layer

org.mapsforge.map.layer.overlay.Polyline

public class Polyline
extends Layer

A Polyline draws a connected series of line segments specified by a list of LatLongs.

A Polyline holds a Paint object which defines drawing parameters such as color, stroke width, pattern and transparency.

Field Summary

Fields inherited from class org.mapsforge.map.layer.Layer

displayModel

Constructor Summary

Constructors

Constructor	Description
Polyline(org.mapsforge.core.graphics.Paint paintStroke, org.mapsforge.core.graphics.GraphicFactory graphicFactory)
Polyline(org.mapsforge.core.graphics.Paint paintStroke, org.mapsforge.core.graphics.GraphicFactory graphicFactory, boolean keepAligned)

Method Summary

Modifier and Type	Method	Description
void	addPoint(org.mapsforge.core.model.LatLong point)
void	addPoints(java.util.List<org.mapsforge.core.model.LatLong> points)
void	clear()
boolean	contains(org.mapsforge.core.model.Point tapXY, MapViewProjection mapViewProjection)
void	draw(org.mapsforge.core.model.BoundingBox boundingBox, byte zoomLevel, org.mapsforge.core.graphics.Canvas canvas, org.mapsforge.core.model.Point topLeftPoint)	Draws this Layer on the given canvas.
java.util.List<org.mapsforge.core.model.LatLong>	getLatLongs()
org.mapsforge.core.graphics.Paint	getPaintStroke()
double	getStrokeIncrease()
boolean	isKeepAligned()
void	setPaintStroke(org.mapsforge.core.graphics.Paint paintStroke)
void	setPoints(java.util.List<org.mapsforge.core.model.LatLong> points)
void	setStrokeIncrease(double strokeIncrease)

Methods inherited from class org.mapsforge.map.layer.Layer

getDisplayModel, getPosition, isVisible, onAdd, onDestroy, onLongPress, onRemove, onScroll, onTap, requestRedraw, setDisplayModel, setVisible, setVisible

Methods inherited from class java.lang.Object

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

Constructor Detail

Polyline

public Polyline(org.mapsforge.core.graphics.Paint paintStroke,
                org.mapsforge.core.graphics.GraphicFactory graphicFactory)

Parameters:

paintStroke - the initial Paint used to stroke this polyline (may be null).

graphicFactory - the GraphicFactory

Polyline

public Polyline(org.mapsforge.core.graphics.Paint paintStroke,
                org.mapsforge.core.graphics.GraphicFactory graphicFactory,
                boolean keepAligned)

Parameters:

paintStroke - the initial Paint used to stroke this polyline (may be null).

graphicFactory - the GraphicFactory

keepAligned - if set to true it will keep the bitmap aligned with the map, to avoid a moving effect of a bitmap shader.

Method Detail

addPoint

public void addPoint(org.mapsforge.core.model.LatLong point)

addPoints

public void addPoints(java.util.List<org.mapsforge.core.model.LatLong> points)

clear

public void clear()

contains

public boolean contains(org.mapsforge.core.model.Point tapXY,
                        MapViewProjection mapViewProjection)

draw

public void draw(org.mapsforge.core.model.BoundingBox boundingBox,
                 byte zoomLevel,
                 org.mapsforge.core.graphics.Canvas canvas,
                 org.mapsforge.core.model.Point topLeftPoint)

Description copied from class: Layer

Draws this Layer on the given canvas.

Specified by:

draw in class Layer

Parameters:

boundingBox - the geographical area which should be drawn.

zoomLevel - the zoom level at which this Layer should draw itself.

canvas - the canvas on which this Layer should draw itself.

topLeftPoint - the top-left pixel position of the canvas relative to the top-left map position.

getLatLongs

public java.util.List<org.mapsforge.core.model.LatLong> getLatLongs()

Returns:

a thread-safe list of LatLongs in this polyline.

getPaintStroke

public org.mapsforge.core.graphics.Paint getPaintStroke()

Returns:

the Paint used to stroke this polyline (may be null).

getStrokeIncrease

public double getStrokeIncrease()

Returns:

the base to scale polyline stroke per zoom (default 1 not scale).

isKeepAligned

public boolean isKeepAligned()

Returns:

true if it keeps the bitmap aligned with the map, to avoid a moving effect of a bitmap shader, false otherwise.

setPaintStroke

public void setPaintStroke(org.mapsforge.core.graphics.Paint paintStroke)

Parameters:

paintStroke - the new Paint used to stroke this polyline (may be null).

setPoints

public void setPoints(java.util.List<org.mapsforge.core.model.LatLong> points)

setStrokeIncrease

public void setStrokeIncrease(double strokeIncrease)

Parameters:

strokeIncrease - the base to scale polyline stroke per zoom (default 1 not scale).