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Issue #1824 Fix Tile Geometry creation.

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This commit is contained in:
Ben Steffensmeier 2013-04-03 10:58:30 -05:00
parent c82a67f378
commit f2915807a0
1 changed files with 11 additions and 18 deletions
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29
cave/com.raytheon.uf.viz.core/src/com/raytheon/uf/viz/core/tile/TileLevel.java
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@ -19,10 +19,9 @@
**/
package com.raytheon.uf.viz.core.tile;
import org.geotools.coverage.grid.GeneralGridEnvelope;
import org.geotools.coverage.grid.GeneralGridGeometry;
import org.geotools.coverage.grid.GridEnvelope2D;
import org.geotools.coverage.grid.GridGeometry2D;
import org.geotools.geometry.Envelope2D;
import org.geotools.geometry.jts.JTS;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.geotools.referencing.operation.DefaultMathTransformFactory;
@ -50,6 +49,7 @@ import com.vividsolutions.jts.geom.Geometry;
* Date Ticket# Engineer Description
* ------------ ---------- ----------- --------------------------
* Aug 8, 2012 mschenke Initial creation
* Apr 03, 2013 1824 bsteffen Fix Tile Geometry creation.
*
* </pre>
*
@ -272,7 +272,7 @@ public class TileLevel {
* @return
*/
private Tile createTile(int x, int y) {
GridEnvelope range = levelGeometry.getGridRange();
GridEnvelope2D range = levelGeometry.getGridRange2D();
// Get grid range ranges and calculate grid range for the tile
int startX = range.getLow(0);
int startY = range.getLow(1);
@ -282,29 +282,22 @@ public class TileLevel {
int tileY = startY + y * tileSize;
int tileX = startX + x * tileSize;
int tileEndX = Math.min(endX, tileX + tileSize);
int tileEndY = Math.min(endY, tileY + tileSize);
int tileWidth = Math.min(endX - tileX, tileSize);
int tileHeight = Math.min(endY - tileY, tileSize);
range = new GridEnvelope2D(tileX, tileY, tileWidth,
tileHeight);
Envelope envelope = null;
// Convert grid range into crs envelope range
double[] in = new double[] { tileX, tileY, tileEndX, tileEndY };
double[] out = new double[in.length];
try {
gridToCRS.transform(in, 0, out, 0, 2);
envelope = levelGeometry.gridToWorld(range);
} catch (TransformException e) {
throw new RuntimeException("Error getting tile envelope from grid",
e);
}
double envTileX = out[0];
double envTileY = out[1];
double envTileEndX = out[2];
double envTileEndY = out[3];
// Create tile GridGeometry
range = new GeneralGridEnvelope(new int[] { tileX, tileY }, new int[] {
tileEndX, tileEndY }, false);
GridGeometry2D tileGridGeom = new GridGeometry2D(range, new Envelope2D(
levelGeometry.getCoordinateReferenceSystem(), out[0], envTileY,
envTileEndX - envTileX, envTileEndY - envTileY));
GridGeometry2D tileGridGeom = new GridGeometry2D(range, envelope);
// Calculate the border in target grid space for the Tile
Geometry border = null;