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Mapsforge: large query zoom levels have polygon artifacts #391

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Mapsforge: large query zoom levels have polygon artifacts #391

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2 changes: 1 addition & 1 deletion vtm/src/org/oscim/layers/tile/vector/VectorTileLoader.java
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Original file line number Diff line number Diff line change
Expand Up @@ -315,7 +315,7 @@ public void renderArea(AreaStyle area, int level) {
} else {
PolygonBucket pb = mBuckets.getPolygonBucket(nLevel);
pb.area = area;
pb.addPolygon(mElement.points, mElement.index);
pb.addPolygon(mElement);
}
}

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17 changes: 11 additions & 6 deletions vtm/src/org/oscim/renderer/bucket/PolygonBucket.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
import org.oscim.theme.styles.AreaStyle;
import org.oscim.utils.ArrayUtils;
import org.oscim.utils.geom.LineClipper;
import org.oscim.utils.geom.TileClipper;
import org.oscim.utils.math.Interpolation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
Expand All @@ -54,25 +55,29 @@ public final class PolygonBucket extends RenderBucket {

public static boolean enableTexture = true;

private final TileClipper clipper;

private float xmin = Short.MAX_VALUE;
private float ymin = Short.MAX_VALUE;
private float xmax = Short.MIN_VALUE;
private float ymax = Short.MIN_VALUE;

public AreaStyle area;

PolygonBucket(int layer) {
super(RenderBucket.POLYGON, true, false);
level = layer;
clipper = new TileClipper(Tile.SIZE * (-2), Tile.SIZE * (-2), Tile.SIZE * 2, Tile.SIZE * 2);;
}

public void addPolygon(GeometryBuffer geom) {
clipper.clip(geom);
addPolygon(geom.points, geom.index);
}

float xmin = Short.MAX_VALUE;
float ymin = Short.MAX_VALUE;
float xmax = Short.MIN_VALUE;
float ymax = Short.MIN_VALUE;

final float[] bbox = new float[8];

public void addPolygon(float[] points, int[] index) {
private void addPolygon(float[] points, int[] index) {
short center = (short) ((Tile.SIZE >> 1) * COORD_SCALE);

boolean outline = area.strokeWidth > 0;
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