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MapScaleBar: minor optimization

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Emux 2019-11-04 13:41:05 +02:00
parent fa5a72f20d
commit 4bfcdadb76
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1 changed files with 3 additions and 3 deletions
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6
vtm/src/org/oscim/scalebar/MapScaleBar.java
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@ -1,7 +1,7 @@
/*
* Copyright 2010, 2011, 2012, 2013 mapsforge.org
* Copyright 2014 Ludwig M Brinckmann
* Copyright 2014-2016 devemux86
* Copyright 2014-2019 devemux86
* Copyright 2014 Erik Duisters
*
* This program is free software: you can redistribute it and/or modify it under the
@ -44,7 +44,7 @@ public abstract class MapScaleBar {
protected Canvas mapScaleCanvas;
private int marginHorizontal;
private int marginVertical;
private MapPosition prevMapPosition;
private final MapPosition prevMapPosition = new MapPosition();
protected boolean redrawNeeded;
protected ScaleBarPosition scaleBarPosition;
private boolean visible;
@ -194,7 +194,7 @@ public abstract class MapScaleBar {
* @return a {@link ScaleBarLengthAndValue} object containing the required scaleBarLength and scaleBarValue
*/
protected ScaleBarLengthAndValue calculateScaleBarLengthAndValue(DistanceUnitAdapter unitAdapter) {
this.prevMapPosition = this.map.getMapPosition();
this.map.getMapPosition(this.prevMapPosition);
double groundResolution = MercatorProjection.groundResolution(this.prevMapPosition);
groundResolution = groundResolution / unitAdapter.getMeterRatio();