Examples with WKTReader com.vividsolutions.jts.io.WKTReader used on opensource projects

Example 66 with WKTReader

use of com.vividsolutions.jts.io.WKTReader in project teiid by teiid.

the class GeometryUtils method snapToGrid.

public static GeometryType snapToGrid(GeometryType geom, double size) throws FunctionExecutionException {
    if (size == 0) {
        return geom;
    }
    Geometry g1 = getGeometry(geom);
    PrecisionModel precisionModel = new PrecisionModel(1 / size);
    GeometryPrecisionReducer reducer = new GeometryPrecisionReducer(precisionModel);
    reducer.setPointwise(true);
    reducer.setChangePrecisionModel(true);
    Geometry result = reducer.reduce(g1);
    // since the wkb writer doesn't consider precision, we have to first write/read through wkt
    WKTWriter writer = new WKTWriter();
    String val = writer.write(result);
    WKTReader reader = new WKTReader(GEOMETRY_FACTORY);
    try {
        result = reader.read(new StringReader(val));
    } catch (ParseException e) {
        throw new FunctionExecutionException(e);
    }
    result.setSRID(geom.getSrid());
    return getGeometryType(result);
}

Example 67 with WKTReader

use of com.vividsolutions.jts.io.WKTReader in project teiid by teiid.

the class GeometryUtils method geometryFromClob.

public static GeometryType geometryFromClob(ClobType wkt, Integer srid, boolean allowEwkt) throws FunctionExecutionException {
    Reader r = null;
    try {
        WKTReader reader = new WKTReader(GEOMETRY_FACTORY);
        r = wkt.getCharacterStream();
        if (allowEwkt) {
            PushbackReader pbr = new PushbackReader(r, 1);
            r = pbr;
            char[] expected = new char[] { 's', 'r', 'i', 'd', '=' };
            int expectedIndex = 0;
            StringBuilder sridBuffer = null;
            for (int i = 0; i < 100000; i++) {
                int charRead = pbr.read();
                if (charRead == -1) {
                    break;
                }
                if (expectedIndex == expected.length) {
                    // parse srid
                    if (sridBuffer == null) {
                        sridBuffer = new StringBuilder(4);
                    }
                    if (charRead == ';') {
                        if (sridBuffer.length() == 0) {
                            pbr.unread(charRead);
                        }
                        break;
                    }
                    sridBuffer.append((char) charRead);
                    continue;
                }
                if (expectedIndex == 0 && Character.isWhitespace(charRead)) {
                    continue;
                }
                if (expected[expectedIndex] != Character.toLowerCase(charRead)) {
                    pbr.unread(charRead);
                    break;
                }
                expectedIndex++;
            }
            if (sridBuffer != null) {
                srid = Integer.parseInt(sridBuffer.toString());
            }
        }
        Geometry jtsGeometry = reader.read(r);
        if (jtsGeometry == null) {
            // for some reason io and parse exceptions are caught in their logic if they occur on the first word, then null is returned
            throw new FunctionExecutionException(QueryPlugin.Util.gs(QueryPlugin.Event.TEIID31203));
        }
        if (!allowEwkt && (jtsGeometry.getSRID() != GeometryType.UNKNOWN_SRID || (jtsGeometry.getCoordinate() != null && !Double.isNaN(jtsGeometry.getCoordinate().z)))) {
            // $NON-NLS-1$
            throw new FunctionExecutionException(QueryPlugin.Util.gs(QueryPlugin.Event.TEIID31160, "EWKT"));
        }
        if (srid == null) {
            srid = jtsGeometry.getSRID();
        }
        return getGeometryType(jtsGeometry, srid);
    } catch (ParseException e) {
        throw new FunctionExecutionException(e);
    } catch (SQLException e) {
        throw new FunctionExecutionException(e);
    } catch (IOException e) {
        throw new FunctionExecutionException(e);
    } finally {
        if (r != null) {
            try {
                r.close();
            } catch (IOException e) {
            }
        }
    }
}

Example 68 with WKTReader

use of com.vividsolutions.jts.io.WKTReader in project teiid by teiid.

the class TestGeometry method testTransform.

@Test
public void testTransform() throws Exception {
    Geometry g0 = new WKTReader().read("POINT(426418.89 4957737.37)");
    Geometry g1 = GeometryTransformUtils.transform(g0, // EPSG:32632
    "+proj=utm +zone=32 +datum=WGS84 +units=m +no_defs", // EPSG:4326
    "+proj=longlat +datum=WGS84 +no_defs");
    assertEquals("POINT (8.07013599546795 44.76924401481436)", g1.toText());
}

Example 69 with WKTReader

use of com.vividsolutions.jts.io.WKTReader in project tutorials by eugenp.

the class HibernateSpatialTest method wktToGeometry.

private Geometry wktToGeometry(String wellKnownText) throws ParseException {
    WKTReader fromText = new WKTReader();
    Geometry geom = null;
    geom = fromText.read(wellKnownText);
    return geom;
}

Example 70 with WKTReader

use of com.vividsolutions.jts.io.WKTReader in project onebusaway-application-modules by camsys.

the class EnterpriseFilteredGeocoderBase method setWktFilterPolygon.

public void setWktFilterPolygon(String wkt) throws ParseException {
    WKTReader reader = new WKTReader();
    _wktFilterPolygon = (Polygon) reader.read(wkt);
}