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increase line width a bit more each zoom-level

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This commit is contained in:
Hannes Janetzek 2013-01-21 03:14:28 +01:00
parent 235e001a82
commit f5e0cce52f
1 changed files with 4 additions and 5 deletions
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9
src/org/oscim/generator/TileGenerator.java
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@ -58,7 +58,7 @@ public class TileGenerator implements IRenderCallback, IMapDatabaseCallback {
private static String TAG = TileGenerator.class.getName(); private static String TAG = TileGenerator.class.getName();
private static final double STROKE_INCREASE = Math.sqrt(2); private static final double STROKE_INCREASE = Math.sqrt(2.2);
private static final byte LAYERS = 11; private static final byte LAYERS = 11;
public static final byte STROKE_MIN_ZOOM_LEVEL = 12; public static final byte STROKE_MIN_ZOOM_LEVEL = 12;
@ -153,14 +153,14 @@ public class TileGenerator implements IRenderCallback, IMapDatabaseCallback {
// else // else
// setScaleStrokeWidth(STROKE_MAX_ZOOM_LEVEL); // setScaleStrokeWidth(STROKE_MAX_ZOOM_LEVEL);
// acount for area changes with latitude // account for area changes with latitude
mProjectionScaleFactor = 0.5f + 0.5f * ( mProjectionScaleFactor = 0.5f + 0.5f * (
(float) Math.sin(Math.abs(MercatorProjection (float) Math.sin(Math.abs(MercatorProjection
.pixelYToLatitude(tile.pixelY, tile.zoomLevel)) * (Math.PI / 180))); .pixelYToLatitude(tile.pixelY, tile.zoomLevel)) * (Math.PI / 180)));
mLayers = new Layers(); mLayers = new Layers();
Log.d(TAG, "loading: " + tile); //Log.d(TAG, "loading: " + tile);
// 180 degree angle in building // 180 degree angle in building
//if ((tile.zoomLevel != 17) || (tile.tileX == 68728 && tile.tileY == 42634)) //if ((tile.zoomLevel != 17) || (tile.tileX == 68728 && tile.tileY == 42634))
@ -228,8 +228,7 @@ public class TileGenerator implements IRenderCallback, IMapDatabaseCallback {
* set. * set.
*/ */
private void setScaleStrokeWidth(byte zoomLevel) { private void setScaleStrokeWidth(byte zoomLevel) {
int zoomLevelDiff = Math.max(zoomLevel - STROKE_MIN_ZOOM_LEVEL, 0); mStrokeScale = (float) Math.pow(STROKE_INCREASE, zoomLevel - STROKE_MIN_ZOOM_LEVEL);
mStrokeScale = (float) Math.pow(STROKE_INCREASE, zoomLevelDiff);
if (mStrokeScale < 1) if (mStrokeScale < 1)
mStrokeScale = 1; mStrokeScale = 1;
} }