org.osmdroid.views.overlay.gridlines

Class LatLonGridlineOverlay2

java.lang.Object

org.osmdroid.views.overlay.Overlay

org.osmdroid.views.overlay.gridlines.LatLonGridlineOverlay2

All Implemented Interfaces:

OverlayConstants

public class LatLonGridlineOverlay2
extends Overlay

created on 2/7/2018.

Since:

6.0.0

Nested Class Summary

Nested classes/interfaces inherited from class org.osmdroid.views.overlay.Overlay

Overlay.Snappable

Field Summary

Fields

Modifier and Type	Field and Description
protected DecimalFormat	mDecimalFormatter
protected int	mFontBackgroundColor
protected int	mFontColor
protected short	mFontSizeDp
protected FolderOverlay	mLastOverlay
protected int	mLineColor
protected float	mLineWidth
protected float	mMultiplier

Fields inherited from class org.osmdroid.views.overlay.Overlay

mBounds, SHADOW_X_SKEW, SHADOW_Y_SCALE

Fields inherited from interface org.osmdroid.views.util.constants.OverlayConstants

DEFAULT_ZOOMLEVEL_MINIMAP_DIFFERENCE, NOT_SET

Constructor Summary

Constructors

Constructor and Description
LatLonGridlineOverlay2()

Method Summary

Modifier and Type	Method and Description
protected void	applyMarkerAttributes(Marker m)
void	draw(Canvas c, MapView osmv, boolean shadow) Draw the overlay over the map.
protected double	getIncrementor(int zoom) this gets the distance in decimal degrees in between each line on the grid based on zoom level.
protected FolderOverlay	getLatLonGrid(MapView mapView)
protected double[]	getStartEndPointsNS(double north, double south, int zoom) gets the start and end points for a latitude line
protected double[]	getStartEndPointsWE(double west, double east, int zoom) gets the start and stop point for a longitude line
void	setBackgroundColor(int backgroundColor) background color for the text labels
void	setDecimalFormatter(DecimalFormat df)
void	setFontColor(int fontColor)
void	setFontSizeDp(short fontSizeDp)
void	setLineColor(int lineColor)
void	setLineWidth(float lineWidth)
void	setMultiplier(float multiplier) default is 1, larger number = more lines on screen.

Methods inherited from class org.osmdroid.views.overlay.Overlay

draw, drawAt, getBounds, getSafeMenuId, getSafeMenuIdSequence, isEnabled, onDetach, onDoubleTap, onDoubleTapEvent, onDown, onFling, onKeyDown, onKeyUp, onLongPress, onPause, onResume, onScroll, onShowPress, onSingleTapConfirmed, onSingleTapUp, onTouchEvent, onTrackballEvent, setEnabled

Methods inherited from class java.lang.Object

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

Field Detail

mDecimalFormatter

protected DecimalFormat mDecimalFormatter

mLineColor

protected int mLineColor

mFontColor

protected int mFontColor

mFontSizeDp

protected short mFontSizeDp

mFontBackgroundColor

protected int mFontBackgroundColor

mLineWidth

protected float mLineWidth

mMultiplier

protected float mMultiplier

mLastOverlay

protected FolderOverlay mLastOverlay

Constructor Detail

LatLonGridlineOverlay2

public LatLonGridlineOverlay2()

Method Detail

draw

public void draw(Canvas c,
                 MapView osmv,
                 boolean shadow)

Description copied from class: Overlay

Draw the overlay over the map. This will be called on all active overlays with shadow=true, to lay down the shadow layer, and then again on all overlays with shadow=false. Callers should check isEnabled() before calling draw(). By default, draws nothing. changed for 5.6 to be public see https://github.com/osmdroid/osmdroid/issues/466 If possible, use Overlay.draw(Canvas, Projection) instead (cf. MapSnapshot

Overrides:

draw in class Overlay

setDecimalFormatter

public void setDecimalFormatter(DecimalFormat df)

setLineColor

public void setLineColor(int lineColor)

setFontColor

public void setFontColor(int fontColor)

setFontSizeDp

public void setFontSizeDp(short fontSizeDp)

setBackgroundColor

public void setBackgroundColor(int backgroundColor)

background color for the text labels

Parameters:

backgroundColor -

setLineWidth

public void setLineWidth(float lineWidth)

setMultiplier

public void setMultiplier(float multiplier)

default is 1, larger number = more lines on screen. This comes at a performance penalty though

Parameters:

multiplier -

applyMarkerAttributes

protected void applyMarkerAttributes(Marker m)

getLatLonGrid

protected FolderOverlay getLatLonGrid(MapView mapView)

getStartEndPointsNS

protected double[] getStartEndPointsNS(double north,
                                       double south,
                                       int zoom)

gets the start and end points for a latitude line

Parameters:

north -

south -

zoom -

Returns:

getStartEndPointsWE

protected double[] getStartEndPointsWE(double west,
                                       double east,
                                       int zoom)

gets the start and stop point for a longitude line

Parameters:

west -

east -

zoom -

Returns:

getIncrementor

protected double getIncrementor(int zoom)

this gets the distance in decimal degrees in between each line on the grid based on zoom level. i had had it at more logical increments (90, 45, 30, etc) but changing to factors of 90 helps visualization (i.e. when you zoom in on a particular crosshair, the crosshair is still there at the next zoom level, for the most part

Parameters:

zoom - mapview's osm zoom level

Returns:

a double indicating the distance in degrees/decimal from which to place the gridlines on screen