/**
* @param placeNameServiceSet the set of PlaceNameService objects that PlaceNameLayer will render.
* @throws IllegalArgumentException if {@link
* gov.nasa.worldwind.layers.placename.PlaceNameServiceSet} is null
*/
public PlaceNameLayer(PlaceNameServiceSet placeNameServiceSet) {
if (placeNameServiceSet == null) {
String message = Logging.getMessage("nullValue.PlaceNameServiceSetIsNull");
Logging.logger().fine(message);
throw new IllegalArgumentException(message);
}
//
this.placeNameServiceSet = placeNameServiceSet.deepCopy();
for (int i = 0; i < this.placeNameServiceSet.getServiceCount(); i++) {
// todo do this for long as well and pick min
int calc1 =
(int)
(PlaceNameService.TILING_SECTOR.getDeltaLatDegrees()
/ this.placeNameServiceSet
.getService(i)
.getTileDelta()
.getLatitude()
.getDegrees());
int numLevels = (int) Math.log(calc1);
navTiles.add(
new NavigationTile(
this.placeNameServiceSet.getService(i),
PlaceNameService.TILING_SECTOR,
numLevels,
"top"));
}
if (!WorldWind.getMemoryCacheSet().containsCache(Tile.class.getName())) {
long size = Configuration.getLongValue(AVKey.PLACENAME_LAYER_CACHE_SIZE, 2000000L);
MemoryCache cache = new BasicMemoryCache((long) (0.85 * size), size);
cache.setName("Placename Tiles");
WorldWind.getMemoryCacheSet().addCache(Tile.class.getName(), cache);
}
}
protected double computeScale(java.awt.Rectangle viewport) {
if (this.resizeBehavior.equals(AVKey.RESIZE_SHRINK_ONLY)) {
return Math.min(1d, (this.toViewportScale) * viewport.width / this.getScaledIconWidth());
} else if (this.resizeBehavior.equals(AVKey.RESIZE_STRETCH)) {
return (this.toViewportScale) * viewport.width / this.getScaledIconWidth();
} else if (this.resizeBehavior.equals(AVKey.RESIZE_KEEP_FIXED_SIZE)) {
return 1d;
} else {
return 1d;
}
}
private boolean needToSplit(DrawContext dc, Sector sector) {
Vec4[] corners = sector.computeCornerPoints(dc.getGlobe(), dc.getVerticalExaggeration());
Vec4 centerPoint = sector.computeCenterPoint(dc.getGlobe(), dc.getVerticalExaggeration());
View view = dc.getView();
double d1 = view.getEyePoint().distanceTo3(corners[0]);
double d2 = view.getEyePoint().distanceTo3(corners[1]);
double d3 = view.getEyePoint().distanceTo3(corners[2]);
double d4 = view.getEyePoint().distanceTo3(corners[3]);
double d5 = view.getEyePoint().distanceTo3(centerPoint);
double minDistance = d1;
if (d2 < minDistance) minDistance = d2;
if (d3 < minDistance) minDistance = d3;
if (d4 < minDistance) minDistance = d4;
if (d5 < minDistance) minDistance = d5;
double cellSize =
(Math.PI * sector.getDeltaLatRadians() * dc.getGlobe().getRadius()) / 20; // TODO
return !(Math.log10(cellSize) <= (Math.log10(minDistance) - this.splitScale));
}
/**
* Compute the view range footprint on the globe.
*
* @param dc the current <code>DrawContext</code>
* @param steps the number of steps.
* @return an array list of <code>LatLon</code> forming a closed shape.
*/
protected ArrayList<LatLon> computeViewFootPrint(DrawContext dc, int steps) {
ArrayList<LatLon> positions = new ArrayList<LatLon>();
Position eyePos = dc.getView().getEyePosition();
Angle distance =
Angle.fromRadians(
Math.asin(
dc.getView().getFarClipDistance()
/ (dc.getGlobe().getRadius() + eyePos.getElevation())));
if (distance.degrees > 10) {
double headStep = 360d / steps;
Angle heading = Angle.ZERO;
for (int i = 0; i <= steps; i++) {
LatLon p = LatLon.greatCircleEndPosition(eyePos, heading, distance);
positions.add(p);
heading = heading.addDegrees(headStep);
}
return positions;
} else return null;
}
protected void doDrawOnTo(BufferedImageRaster canvas) {
Sector sector = this.getSector();
if (null == sector) {
String message = Logging.getMessage("nullValue.SectorIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (!sector.intersects(canvas.getSector())) {
return;
}
java.awt.Graphics2D g2d = null;
java.awt.Shape prevClip = null;
java.awt.Composite prevComposite = null;
java.lang.Object prevInterpolation = null, prevAntialiasing = null;
try {
int canvasWidth = canvas.getWidth();
int canvasHeight = canvas.getHeight();
// Apply the transform that correctly maps the image onto the canvas.
java.awt.geom.AffineTransform transform =
this.computeSourceToDestTransform(
this.getWidth(),
this.getHeight(),
this.getSector(),
canvasWidth,
canvasHeight,
canvas.getSector());
AffineTransformOp op = new AffineTransformOp(transform, AffineTransformOp.TYPE_BILINEAR);
Rectangle2D rect = op.getBounds2D(this.getBufferedImage());
int clipWidth =
(int) Math.ceil((rect.getMaxX() >= canvasWidth) ? canvasWidth : rect.getMaxX());
int clipHeight =
(int) Math.ceil((rect.getMaxY() >= canvasHeight) ? canvasHeight : rect.getMaxY());
if (clipWidth <= 0 || clipHeight <= 0) {
return;
}
g2d = canvas.getGraphics();
prevClip = g2d.getClip();
prevComposite = g2d.getComposite();
prevInterpolation = g2d.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
prevAntialiasing = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
// Set the alpha composite for appropriate alpha blending.
g2d.setComposite(java.awt.AlphaComposite.SrcOver);
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.drawImage(this.getBufferedImage(), transform, null);
}
// catch (java.awt.image.ImagingOpException ioe)
// {
// // If we catch a ImagingOpException, then the transformed image has a width or
// height of 0.
// // This indicates that there is no intersection between the source image and the
// canvas,
// // or the intersection is smaller than one pixel.
// }
// catch (java.awt.image.RasterFormatException rfe)
// {
// // If we catch a RasterFormatException, then the transformed image has a width or
// height of 0.
// // This indicates that there is no intersection between the source image and the
// canvas,
// // or the intersection is smaller than one pixel.
// }
catch (Throwable t) {
String reason = WWUtil.extractExceptionReason(t);
Logging.logger().log(java.util.logging.Level.SEVERE, reason, t);
} finally {
// Restore the previous clip, composite, and transform.
try {
if (null != g2d) {
if (null != prevClip) g2d.setClip(prevClip);
if (null != prevComposite) g2d.setComposite(prevComposite);
if (null != prevInterpolation)
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, prevInterpolation);
if (null != prevAntialiasing)
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, prevAntialiasing);
}
} catch (Throwable t) {
Logging.logger().log(java.util.logging.Level.FINEST, WWUtil.extractExceptionReason(t), t);
}
}
}