Java Code Examples for mil.nga.geopackage.tiles.matrix.TileMatrix#getPixelXSize()
The following examples show how to use
mil.nga.geopackage.tiles.matrix.TileMatrix#getPixelXSize() .
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Example 1
| Source File: TileDaoUtils.java From geopackage-core-java with MIT License | 6 votes |
|
/**
* Adjust the tile matrix lengths if needed. Check if the tile matrix width
* and height need to expand to account for pixel * number of pixels fitting
* into the tile matrix lengths
*
* @param tileMatrixSet
* tile matrix set
* @param tileMatrices
* tile matrices
*/
public static void adjustTileMatrixLengths(TileMatrixSet tileMatrixSet,
List<TileMatrix> tileMatrices) {
double tileMatrixWidth = tileMatrixSet.getMaxX()
- tileMatrixSet.getMinX();
double tileMatrixHeight = tileMatrixSet.getMaxY()
- tileMatrixSet.getMinY();
for (TileMatrix tileMatrix : tileMatrices) {
int tempMatrixWidth = (int) (tileMatrixWidth / (tileMatrix
.getPixelXSize() * tileMatrix.getTileWidth()));
int tempMatrixHeight = (int) (tileMatrixHeight / (tileMatrix
.getPixelYSize() * tileMatrix.getTileHeight()));
if (tempMatrixWidth > tileMatrix.getMatrixWidth()) {
tileMatrix.setMatrixWidth(tempMatrixWidth);
}
if (tempMatrixHeight > tileMatrix.getMatrixHeight()) {
tileMatrix.setMatrixHeight(tempMatrixHeight);
}
}
}
Example 2
| Source File: CoverageDataCore.java From geopackage-core-java with MIT License | 5 votes |
|
/**
* Pad the bounding box with extra space for the overlapping pixels
*
* @param tileMatrix
* tile matrix
* @param boundingBox
* bounding box
* @param overlap
* overlapping pixels
* @return padded bounding box
*/
protected BoundingBox padBoundingBox(TileMatrix tileMatrix,
BoundingBox boundingBox, int overlap) {
double lonPixelPadding = tileMatrix.getPixelXSize() * overlap;
double latPixelPadding = tileMatrix.getPixelYSize() * overlap;
BoundingBox paddedBoundingBox = new BoundingBox(
boundingBox.getMinLongitude() - lonPixelPadding,
boundingBox.getMinLatitude() - latPixelPadding,
boundingBox.getMaxLongitude() + lonPixelPadding,
boundingBox.getMaxLatitude() + latPixelPadding);
return paddedBoundingBox;
}
Example 3
| Source File: TileDao.java From geopackage-android with MIT License | 4 votes |
|
/**
* Constructor
*
* @param database database name
* @param db GeoPackage connection
* @param tileMatrixSet tile matrix set
* @param tileMatrices tile matrices
* @param table tile table
*/
public TileDao(String database, GeoPackageConnection db, TileMatrixSet tileMatrixSet,
List<TileMatrix> tileMatrices, TileTable table) {
super(database, db, new TileConnection(db), table);
this.tileDb = (TileConnection) getUserDb();
this.tileMatrixSet = tileMatrixSet;
this.tileMatrices = tileMatrices;
this.widths = new double[tileMatrices.size()];
this.heights = new double[tileMatrices.size()];
projection = tileMatrixSet.getProjection();
// Set the min and max zoom levels
if (!tileMatrices.isEmpty()) {
minZoom = tileMatrices.get(0).getZoomLevel();
maxZoom = tileMatrices.get(tileMatrices.size() - 1).getZoomLevel();
} else {
minZoom = 0;
maxZoom = 0;
}
// Populate the zoom level to tile matrix and the sorted tile widths and
// heights
for (int i = 0; i < tileMatrices.size(); i++) {
TileMatrix tileMatrix = tileMatrices.get(i);
zoomLevelToTileMatrix.put(tileMatrix.getZoomLevel(), tileMatrix);
widths[tileMatrices.size() - i - 1] = tileMatrix.getPixelXSize()
* tileMatrix.getTileWidth();
heights[tileMatrices.size() - i - 1] = tileMatrix.getPixelYSize()
* tileMatrix.getTileHeight();
}
if (tileMatrixSet.getContents() == null) {
throw new GeoPackageException(TileMatrixSet.class.getSimpleName()
+ " " + tileMatrixSet.getId() + " has null "
+ Contents.class.getSimpleName());
}
if (tileMatrixSet.getSrs() == null) {
throw new GeoPackageException(TileMatrixSet.class.getSimpleName()
+ " " + tileMatrixSet.getId() + " has null "
+ SpatialReferenceSystem.class.getSimpleName());
}
}
Example 4
| Source File: CoverageDataTestUtils.java From geopackage-android with MIT License | 4 votes |
|
/**
* Test the pixel encoding location
*
* @param geoPackage GeoPackage
* @param allowNulls allow nulls
* @throws Exception
*/
public static void testPixelEncoding(GeoPackage geoPackage,
boolean allowNulls) throws Exception {
List<String> coverageDataTables = CoverageData.getTables(geoPackage);
TestCase.assertFalse(coverageDataTables.isEmpty());
TileMatrixSetDao tileMatrixSetDao = geoPackage.getTileMatrixSetDao();
TestCase.assertTrue(tileMatrixSetDao.isTableExists());
TileMatrixDao tileMatrixDao = geoPackage.getTileMatrixDao();
TestCase.assertTrue(tileMatrixDao.isTableExists());
for (String coverageTable : coverageDataTables) {
TileMatrixSet tileMatrixSet = tileMatrixSetDao
.queryForId(coverageTable);
TileDao tileDao = geoPackage.getTileDao(tileMatrixSet);
CoverageData<?> coverageData = CoverageData.getCoverageData(
geoPackage, tileDao);
GriddedCoverage griddedCoverage = coverageData.getGriddedCoverage();
GriddedCoverageEncodingType encoding = griddedCoverage
.getGridCellEncodingType();
TileCursor tileCursor = tileDao.queryForTile(tileDao
.getMaxZoom());
TestCase.assertNotNull(tileCursor);
try {
TestCase.assertTrue(tileCursor.getCount() > 0);
while (tileCursor.moveToNext()) {
TileRow tileRow = tileCursor.getRow();
TileMatrix tileMatrix = tileDao.getTileMatrix(tileRow
.getZoomLevel());
TestCase.assertNotNull(tileMatrix);
GriddedTile griddedTile = coverageData.getGriddedTile(tileRow
.getId());
TestCase.assertNotNull(griddedTile);
byte[] tileData = tileRow.getTileData();
TestCase.assertNotNull(tileData);
BoundingBox boundingBox = TileBoundingBoxUtils.getBoundingBox(
tileMatrixSet.getBoundingBox(), tileMatrix,
tileRow.getTileColumn(), tileRow.getTileRow());
int tileHeight = (int) tileMatrix.getTileHeight();
int tileWidth = (int) tileMatrix.getTileWidth();
int heightChunk = Math.max(tileHeight / 10, 1);
int widthChunk = Math.max(tileWidth / 10, 1);
for (int y = 0; y < tileHeight; y = Math.min(y + heightChunk,
y == tileHeight - 1 ? tileHeight : tileHeight - 1)) {
for (int x = 0; x < tileWidth; x = Math.min(x + widthChunk,
x == tileWidth - 1 ? tileWidth : tileWidth - 1)) {
Double pixelValue = coverageData.getValue(griddedTile,
tileData, x, y);
double pixelLongitude = boundingBox.getMinLongitude()
+ (x * tileMatrix.getPixelXSize());
double pixelLatitude = boundingBox.getMaxLatitude()
- (y * tileMatrix.getPixelYSize());
switch (encoding) {
case CENTER:
case AREA:
pixelLongitude += (tileMatrix.getPixelXSize() / 2.0);
pixelLatitude -= (tileMatrix.getPixelYSize() / 2.0);
break;
case CORNER:
pixelLatitude -= tileMatrix.getPixelYSize();
break;
}
Double value = coverageData.getValue(pixelLatitude,
pixelLongitude);
if (!allowNulls || pixelValue != null) {
TestCase.assertEquals("x: " + x + ", y: " + y
+ ", encoding: " + encoding, pixelValue,
value);
}
}
}
break;
}
} finally {
tileCursor.close();
}
}
}
Example 5
| Source File: TileDao.java From geopackage-java with MIT License | 4 votes |
|
/**
* Constructor
*
* @param database
* database
* @param db
* GeoPackage connection
* @param tileMatrixSet
* tile matrix set
* @param tileMatrices
* tile matrices
* @param table
* tile table
*/
public TileDao(String database, GeoPackageConnection db,
TileMatrixSet tileMatrixSet, List<TileMatrix> tileMatrices,
TileTable table) {
super(database, db, new TileConnection(db), table);
this.tileDb = (TileConnection) getUserDb();
this.tileMatrixSet = tileMatrixSet;
this.tileMatrices = tileMatrices;
this.widths = new double[tileMatrices.size()];
this.heights = new double[tileMatrices.size()];
projection = tileMatrixSet.getProjection();
// Set the min and max zoom levels
if (!tileMatrices.isEmpty()) {
minZoom = tileMatrices.get(0).getZoomLevel();
maxZoom = tileMatrices.get(tileMatrices.size() - 1).getZoomLevel();
} else {
minZoom = 0;
maxZoom = 0;
}
// Populate the zoom level to tile matrix and the sorted tile widths and
// heights
for (int i = 0; i < tileMatrices.size(); i++) {
TileMatrix tileMatrix = tileMatrices.get(i);
zoomLevelToTileMatrix.put(tileMatrix.getZoomLevel(), tileMatrix);
widths[tileMatrices.size() - i - 1] = tileMatrix.getPixelXSize()
* tileMatrix.getTileWidth();
heights[tileMatrices.size() - i - 1] = tileMatrix.getPixelYSize()
* tileMatrix.getTileHeight();
}
if (tileMatrixSet.getContents() == null) {
throw new GeoPackageException(TileMatrixSet.class.getSimpleName()
+ " " + tileMatrixSet.getId() + " has null "
+ Contents.class.getSimpleName());
}
if (tileMatrixSet.getSrs() == null) {
throw new GeoPackageException(TileMatrixSet.class.getSimpleName()
+ " " + tileMatrixSet.getId() + " has null "
+ SpatialReferenceSystem.class.getSimpleName());
}
}
Example 6
| Source File: TileUtils.java From geopackage-android with MIT License | 2 votes |
|
/**
* Test getZoomLevel
*
* @param geoPackage GeoPackage
* @throws SQLException upon error
*/
public static void testGetZoomLevel(GeoPackage geoPackage)
throws SQLException {
TileMatrixSetDao tileMatrixSetDao = geoPackage.getTileMatrixSetDao();
if (tileMatrixSetDao.isTableExists()) {
List<TileMatrixSet> results = tileMatrixSetDao.queryForAll();
for (TileMatrixSet tileMatrixSet : results) {
TileDao dao = geoPackage.getTileDao(tileMatrixSet);
List<TileMatrix> tileMatrices = dao.getTileMatrices();
for (TileMatrix tileMatrix : tileMatrices) {
double width = tileMatrix.getPixelXSize()
* tileMatrix.getTileWidth();
double height = tileMatrix.getPixelYSize()
* tileMatrix.getTileHeight();
long zoomLevel = dao.getZoomLevel(width);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width, height);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width + 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width + 1, height + 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width - 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width - 1, height - 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
}
}
}
}
Example 7
| Source File: TileUtils.java From geopackage-java with MIT License | 2 votes |
|
/**
* Test getZoomLevel
*
* @param geoPackage
* GeoPackage
* @throws SQLException
* upon error
*/
public static void testGetZoomLevel(GeoPackage geoPackage)
throws SQLException {
TileMatrixSetDao tileMatrixSetDao = geoPackage.getTileMatrixSetDao();
if (tileMatrixSetDao.isTableExists()) {
List<TileMatrixSet> results = tileMatrixSetDao.queryForAll();
for (TileMatrixSet tileMatrixSet : results) {
TileDao dao = geoPackage.getTileDao(tileMatrixSet);
List<TileMatrix> tileMatrices = dao.getTileMatrices();
for (TileMatrix tileMatrix : tileMatrices) {
double width = tileMatrix.getPixelXSize()
* tileMatrix.getTileWidth();
double height = tileMatrix.getPixelYSize()
* tileMatrix.getTileHeight();
long zoomLevel = dao.getZoomLevel(width);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width, height);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width + 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width + 1, height + 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width - 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
zoomLevel = dao.getZoomLevel(width - 1, height - 1);
TestCase.assertEquals(tileMatrix.getZoomLevel(), zoomLevel);
}
}
}
}
