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 Paint	mLinePaint
protected float	mMultiplier
protected GeoPoint	mOptimizationGeoPoint
protected Point	mOptimizationPoint
protected Paint	mTextBackgroundPaint
protected Paint	mTextPaint

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
void	draw(Canvas c, Projection pProjection)
protected double	getIncrementor(int zoom) this gets the distance in decimal degrees in between each line on the grid based on zoom level.
Paint	getTextPaint() getter for the Paint object.
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.
void	setTextPaint(Paint paint) if for some reason there's missing setter for this class and you don't want to subclass it, you can override the paint object with this method.
void	setTextStyle(Paint.Style paint) sets the text label paint styler see https://github.com/osmdroid/osmdroid/issues/1723

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

mMultiplier

protected float mMultiplier

mLinePaint

protected Paint mLinePaint

mTextBackgroundPaint

protected Paint mTextBackgroundPaint

mTextPaint

protected Paint mTextPaint

mOptimizationGeoPoint

protected GeoPoint mOptimizationGeoPoint

mOptimizationPoint

protected Point mOptimizationPoint

Constructor Detail

LatLonGridlineOverlay2

public LatLonGridlineOverlay2()

Method Detail

draw

public void draw(Canvas c,
                 Projection pProjection)

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)

setTextStyle

public void setTextStyle(Paint.Style paint)

sets the text label paint styler see https://github.com/osmdroid/osmdroid/issues/1723

Parameters:

paint -

Since:

6.1.11

setTextPaint

public void setTextPaint(Paint paint)

if for some reason there's missing setter for this class and you don't want to subclass it, you can override the paint object with this method. Only used for the text painter

Parameters:

paint -

Since:

6.1.11

getTextPaint

public Paint getTextPaint()

getter for the Paint object. I'd suggest using the setter methods first or subclassing this class if you need to do something else but this will get you access to the live instance of the paint object which is used for drawing text labels

Returns:

Since:

6.1.11

setBackgroundColor

public void setBackgroundColor(int backgroundColor)

background color for the text labels

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

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