Package com.spatial4j.core.context.jts

Examples of com.spatial4j.core.context.jts.JtsSpatialContextFactory

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public class JtsBinaryCodecTest extends BinaryCodecTest {

  @ParametersFactory
  public static Iterable<Object[]> parameters() {
    //try floats
    JtsSpatialContextFactory factory = new JtsSpatialContextFactory();
    factory.precisionModel = new PrecisionModel(PrecisionModel.FLOATING_SINGLE);

    return Arrays.asList($$(
        $(JtsSpatialContext.GEO),//doubles
        $(factory.newSpatialContext())//floats
    ));
  }
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    assertParses("POLYGON((160 10, -170 10, -170 0, 160 0, 160 10))", expected);
  }

  @Test
  public void polyToRectCcwRule() throws ParseException {
    JtsSpatialContext ctx = new JtsSpatialContextFactory() { { datelineRule = JtsWktShapeParser.DatelineRule.ccwRect;} }.newSpatialContext();
    //counter-clockwise
    assertEquals(ctx.readShapeFromWkt("POLYGON((160 0, -170 0, -170 10, 160 10, 160 0))"),
        ctx.makeRectangle(160, -170, 0, 10));
    //clockwise
    assertEquals(ctx.readShapeFromWkt("POLYGON((160 10, -170 10, -170 0, 160 0, 160 10))"),
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    //note: doesn't repair all cases; this case isn't:
    //ctx.readShapeFromWkt("POLYGON((0 0, 10 0, 10 20))");//doesn't connect around
    String wkt = "POLYGON((0 0, 10 0, 10 20, 5 -5, 0 20, 0 0))";//Topology self-intersect

    JtsSpatialContextFactory factory = new JtsSpatialContextFactory();
    factory.validationRule = JtsWktShapeParser.ValidationRule.repairBuffer0;
    JtsSpatialContext ctx = factory.newSpatialContext();
    Shape buffer0 = ctx.readShapeFromWkt(wkt);
    assertTrue(buffer0.getArea(ctx) > 0);

    factory = new JtsSpatialContextFactory();
    factory.validationRule = JtsWktShapeParser.ValidationRule.repairConvexHull;
    ctx = factory.newSpatialContext();
    Shape cvxHull = ctx.readShapeFromWkt(wkt);
    assertTrue(cvxHull.getArea(ctx) > 0);

    assertEquals(SpatialRelation.CONTAINS, cvxHull.relate(buffer0));

    factory = new JtsSpatialContextFactory();
    factory.validationRule = JtsWktShapeParser.ValidationRule.none;
    ctx = factory.newSpatialContext();
    ctx.readShapeFromWkt(wkt);//doesn't throw
  }
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    // TODO Test contains: 64°12'44.82"N    61°29'5.20"E
    //  64.21245  61.48475
    // FAILS
    //assertRelation(null,SpatialRelation.CONTAINS, shape, ctx.makePoint(61.48, 64.21));

    JtsSpatialContextFactory factory = new JtsSpatialContextFactory();
    factory.normWrapLongitude = true;

    JtsSpatialContext ctx = factory.newSpatialContext();

    Shape shape = ctx.readShapeFromWkt(wktStr);
    //System.out.println("Russia Area: "+shape.getArea(ctx));
  }
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  @Test
  public void testFiji() throws IOException, ParseException {
    //Fiji is a group of islands crossing the dateline.
    String wktStr = readFirstLineFromRsrc("/fiji.wkt.txt");

    JtsSpatialContextFactory factory = new JtsSpatialContextFactory();
    factory.normWrapLongitude = true;
    JtsSpatialContext ctx = factory.newSpatialContext();

    Shape shape = ctx.readShapeFromWkt(wktStr);

    assertRelation(null,SpatialRelation.CONTAINS, shape,
            ctx.makePoint(-179.99,-16.9));
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  public static Iterable<Object[]> parameters() {
    final Rectangle WB = new RectangleImpl(-2000, 2000, -300, 300, null);//whatever

    List<Object[]> ctxs = new ArrayList<Object[]>();
    ctxs.add($(new SpatialContextFactory() {{geo = false; worldBounds = WB;}}.newSpatialContext()));
    ctxs.add($(new JtsSpatialContextFactory() {{geo = false; worldBounds = WB;}}.newSpatialContext()));
    return ctxs;
  }
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    final DistanceCalculator distCalcV = new GeodesicSphereDistCalc.Vincenty();
    return Arrays.asList($$(
        $(new SpatialContextFactory(){{geo = true; distCalc = new RoundingDistCalc(distCalcL);}}.newSpatialContext()),
        $(new SpatialContextFactory(){{geo = true; distCalc = new RoundingDistCalc(distCalcH);}}.newSpatialContext()),
        $(new SpatialContextFactory(){{geo = true; distCalc = new RoundingDistCalc(distCalcV);}}.newSpatialContext()),
        $(new JtsSpatialContextFactory(){{geo = true; distCalc = new RoundingDistCalc(distCalcH);}}.newSpatialContext()))
    );
  }
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Related Classes of com.spatial4j.core.context.jts.JtsSpatialContextFactory

  • com.spatial4j.core.io.JtsBinaryCodecTest
  • com.spatial4j.core.io.JtsWktShapeParserTest
  • com.spatial4j.core.shape.JtsGeometryTest
  • com.spatial4j.core.shape.TestShapes2D
  • com.spatial4j.core.shape.TestShapesGeo
  • com.vividsolutions.jts.geom.GeometryFactory
  • com.vividsolutions.jts.geom.PrecisionModel
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