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Add options to gpx ingest to simplify geometry, and exclude tracks th…
…at are too complex or cover too much area. (#1345)
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72 changes: 72 additions & 0 deletions
72
.../src/main/java/mil/nga/giat/geowave/adapter/vector/ingest/GeometrySimpOptionProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package mil.nga.giat.geowave.adapter.vector.ingest; | ||
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| import java.nio.ByteBuffer; | ||
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| import com.beust.jcommander.Parameter; | ||
| import com.vividsolutions.jts.geom.Geometry; | ||
| import com.vividsolutions.jts.simplify.DouglasPeuckerSimplifier; | ||
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| import mil.nga.giat.geowave.core.index.ByteArrayUtils; | ||
| import mil.nga.giat.geowave.core.index.persist.Persistable; | ||
| import mil.nga.giat.geowave.core.store.adapter.statistics.histogram.ByteUtils; | ||
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| public class GeometrySimpOptionProvider implements | ||
| Persistable | ||
| { | ||
| @Parameter(names = "--maxVertices", description = "Maximum number of vertices to allow for the feature. Features with over this vertice count will be discarded.") | ||
| private int maxVertices = Integer.MAX_VALUE; | ||
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| @Parameter(names = "--minSimpVertices", description = "Minimum vertex count to qualify for geometry simplification.") | ||
| private int simpVertMin = Integer.MAX_VALUE; | ||
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| @Parameter(names = "--tolerance", description = "Maximum error tolerance in geometry simplification. Should range from 0.0 to 1.0 (i.e. .1 = 10%)") | ||
| private double tolerance = 0.02; | ||
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| public Geometry simplifyGeometry( | ||
| Geometry geom ) { | ||
| if (geom.getCoordinates().length > this.simpVertMin) { | ||
| return DouglasPeuckerSimplifier.simplify( | ||
| geom, | ||
| this.tolerance); | ||
| } | ||
| return geom; | ||
| } | ||
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| public boolean filterGeometry( | ||
| Geometry geom ) { | ||
| return (geom.getCoordinates().length < this.maxVertices && !geom.isEmpty() && geom.isValid()); | ||
| } | ||
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| @Override | ||
| public byte[] toBinary() { | ||
| final byte[] backingBuffer = new byte[Integer.BYTES * 2 + Double.BYTES]; | ||
| ByteBuffer buf = ByteBuffer.wrap(backingBuffer); | ||
| buf.putInt( | ||
| maxVertices).putInt( | ||
| simpVertMin).putDouble( | ||
| tolerance); | ||
| return backingBuffer; | ||
| } | ||
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| @Override | ||
| public void fromBinary( | ||
| byte[] bytes ) { | ||
| ByteBuffer buf = ByteBuffer.wrap(bytes); | ||
| maxVertices = buf.getInt(); | ||
| simpVertMin = buf.getInt(); | ||
| tolerance = buf.getDouble(); | ||
| } | ||
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| public int getMaxVertices() { | ||
| return maxVertices; | ||
| } | ||
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| public int getSimpLimit() { | ||
| return simpVertMin; | ||
| } | ||
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| public double getTolerance() { | ||
| return tolerance; | ||
| } | ||
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| } |
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