本文整理汇总了Java中mil.nga.geopackage.projection.ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH属性的典型用法代码示例。如果您正苦于以下问题：Java ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH属性的具体用法？Java ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH怎么用？Java ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类mil.nga.geopackage.projection.ProjectionConstants的用法示例。
在下文中一共展示了ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH属性的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getWebMercatorBoundingBox
/**
* Get the Web Mercator tile bounding box from the Google Maps API tile
* coordinates and zoom level
*
* @param x
* x coordinate
* @param y
* y coordinate
* @param zoom
* zoom level
* @return bounding box
*/
public static BoundingBox getWebMercatorBoundingBox(long x, long y, int zoom) {
double tileSize = tileSizeWithZoom(zoom);
double minLon = (-1 * ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH)
+ (x * tileSize);
double maxLon = (-1 * ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH)
+ ((x + 1) * tileSize);
double minLat = ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH
- ((y + 1) * tileSize);
double maxLat = ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH
- (y * tileSize);
BoundingBox box = new BoundingBox(minLon, minLat, maxLon, maxLat);
return box;
}
示例2: getTileGrid
/**
* Get the tile grid that includes the entire tile bounding box
*
* @param webMercatorBoundingBox
* web mercator bounding box
* @param zoom
* zoom level
* @return tile grid
*/
public static TileGrid getTileGrid(BoundingBox webMercatorBoundingBox,
int zoom) {
int tilesPerSide = tilesPerSide(zoom);
double tileSize = tileSize(tilesPerSide);
int minX = (int) ((webMercatorBoundingBox.getMinLongitude() + ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH) / tileSize);
double tempMaxX = (webMercatorBoundingBox.getMaxLongitude() + ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH)
/ tileSize;
int maxX = (int) (tempMaxX - ProjectionConstants.WEB_MERCATOR_PRECISION);
maxX = Math.min(maxX, tilesPerSide - 1);
int minY = (int) (((webMercatorBoundingBox.getMaxLatitude() - ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH) * -1) / tileSize);
double tempMaxY = ((webMercatorBoundingBox.getMinLatitude() - ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH) * -1)
/ tileSize;
int maxY = (int) (tempMaxY - ProjectionConstants.WEB_MERCATOR_PRECISION);
maxY = Math.min(maxY, tilesPerSide - 1);
TileGrid grid = new TileGrid(minX, minY, maxX, maxY);
return grid;
}
示例3: getZoomLevel
/**
* Get the zoom level of where the web mercator bounding box fits into the
* complete world
*
* @param webMercatorBoundingBox
* web mercator bounding box
* @return zoom level
*/
public static int getZoomLevel(BoundingBox webMercatorBoundingBox) {
double worldLength = ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH * 2;
int widthTiles = (int) (worldLength / (webMercatorBoundingBox
.getMaxLongitude() - webMercatorBoundingBox.getMinLongitude()));
int heightTiles = (int) (worldLength / (webMercatorBoundingBox
.getMaxLatitude() - webMercatorBoundingBox.getMinLatitude()));
int tilesPerSide = Math.min(widthTiles, heightTiles);
tilesPerSide = Math.max(tilesPerSide, 1);
int zoom = zoomFromTilesPerSide(tilesPerSide);
return zoom;
}
示例4: zoomLevelOfTileSize
/**
* Get the zoom level from the tile size in meters
*
* @param tileSize
* tile size in meters
* @return zoom level
* @since 1.2.0
*/
public static double zoomLevelOfTileSize(double tileSize) {
double tilesPerSide = (2 * ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH)
/ tileSize;
double zoom = Math.log(tilesPerSide) / Math.log(2);
return zoom;
}
示例5: tileSize
/**
* Get the tile size in meters
*
* @param tilesPerSide
* tiles per side
* @return tile size
*/
public static double tileSize(int tilesPerSide) {
return (2 * ProjectionConstants.WEB_MERCATOR_HALF_WORLD_WIDTH)
/ tilesPerSide;
}