src/GUI/settings.cpp

@@ -174,7 +174,7 @@ SETTING(markerInfo,          "markerInfo",             MarkerInfoItem::None   );
 SETTING(useStyles,           "styles",                 true                   );
 
 /* DEM */
-SETTING(drawHillShading,     "hillshading",            true                   );
+SETTING(drawHillShading,     "hillshading",            false                   );
 
 /* Position */
 SETTING(showPosition,        "show",                   false                  );

src/map/IMG/jls.cpp

@@ -129,17 +129,16 @@ bool JLS::readLine(BitStream &bs)
 	quint8 k;
 	uint MErrval;
 	int Errval;
-	int Rx;
+	int Rx = _last[1];
-	int Ra = _last[1];
+	int last0 = _last[0];
-	int Rb = _last[1];
+	int last1 = _last[1];
-	int Rc = _last[0];
 	uint col = 1;
 
 	*_current = _last[1];
 
 	do {
-		if (abs(Rb - Ra) > _near) {
+		if (abs(last1 - Rx) > _near) {
-			int Px = Ra + Rb - Rc;
+			int Px = Rx + last1 - last0;
 			if (Px < 0)
 				Px = 0;
 			else if (Px > _maxval)
@@ -167,7 +166,7 @@ bool JLS::readLine(BitStream &bs)
 			} else
 				mes = mes * (_near * 2 + 1);
 
-			Errval = (Ra < Rb) ? mes : -mes;
+			Errval = (Rx < last1) ? mes : -mes;
 			Rx = Px + Errval;
 
 			if (Rx < -_near)
@@ -197,8 +196,8 @@ bool JLS::readLine(BitStream &bs)
 			} else if (_b[1] > 0)
 				_b[1] = ((_b[1] - _n[1]) >> 0xf) & (_b[1] - _n[1]);
 
-			Rc = Rb;
+			last0 = last1;
-			Rb = _last[col + 1];
+			last1 = _last[col + 1];
 		} else {
 			quint16 samples;
 			if (!processRunMode(bs, _w - col + 1, samples))
@@ -208,21 +207,21 @@ bool JLS::readLine(BitStream &bs)
 				for (int i = 0; i < samples; i++) {
 					if (col > _w)
 						return false;
-					_current[col] = Ra;
+					_current[col] = Rx;
 					col++;
 				}
 
 				if (col > _w)
 					break;
 
-				Rc = _last[col];
+				last0 = _last[col];
-				Rb = _last[col + 1];
+				last1 = _last[col + 1];
 			} else {
-				Rc = Rb;
+				last0 = last1;
-				Rb = _last[col + 1];
+				last1 = _last[col + 1];
 			}
 
-			rctx = (abs(Rc - Ra) <= _near);
+			rctx = (abs(last0 - Rx) <= _near);
 			quint16 TEMP = _a[rctx + 2];
 			if (rctx)
 				TEMP += _n[rctx + 2] >> 1;
@@ -250,15 +249,15 @@ bool JLS::readLine(BitStream &bs)
 
 			Errval *= (_near * 2 + 1);
 			if (!rctx) {
-				if (Ra == Rc)
+				if (Rx == last0)
 					return false;
 
-				if (Ra < Rc)
+				if (Rx < last0)
-					Rx = Rc + Errval;
+					Rx = last0 + Errval;
 				else
-					Rx = Rc - Errval;
+					Rx = last0 - Errval;
 			} else
-				Rx = Ra + Errval;
+				Rx = Rx + Errval;
 
 			if (Rx < -_near)
 				Rx += (_near * 2 + 1) * _range;
@@ -280,8 +279,6 @@ bool JLS::readLine(BitStream &bs)
 		}
 
 		_current[col] = Rx;
-
-		Ra = Rx;
 		col = col + 1;
 	} while (col <= _w);
 

src/map/IMG/rastertile.cpp

@@ -500,8 +500,8 @@ MatrixD RasterTile::elevation(int extend) const
 void RasterTile::drawHillShading(QPainter *painter) const
 {
 	if (_hillShading && _zoom >= 18 && _zoom <= 24) {
-		MatrixD dem(Filter::blur(elevation(BLUR_RADIUS + 1), BLUR_RADIUS));
+		MatrixD dem(Filter::blur(elevation(BLUR_RADIUS), BLUR_RADIUS));
-		QImage img(HillShading::render(dem, BLUR_RADIUS + 1));
+		QImage img(HillShading::render(dem, BLUR_RADIUS));
 		painter->drawImage(_rect.x(), _rect.y(), img);
 	}
 }

src/map/mapsforge/rastertile.cpp

@@ -442,9 +442,8 @@ void RasterTile::drawPaths(QPainter *painter, const QList<MapData::Path> &paths,
 			painter->drawEllipse(ll2xy(point->coordinates), radius, radius);
 		} else {
 			if (_hillShading) {
-				MatrixD dem(Filter::blur(elevation(BLUR_RADIUS + 1),
+				MatrixD dem(Filter::blur(elevation(BLUR_RADIUS), BLUR_RADIUS));
-				  BLUR_RADIUS));
+				QImage img(HillShading::render(dem, BLUR_RADIUS));
-				QImage img(HillShading::render(dem, BLUR_RADIUS + 1));
 				painter->drawImage(_rect.x(), _rect.y(), img);
 			}
 		}