Esempio n. 1
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  Ellipsoid parseSpheroid(final Element parent) throws ParseException {
    Element element = parent.pullElement("SPHEROID");
    String name = element.pullString("name");
    double semiMajorAxis = element.pullDouble("semiMajorAxis");
    double inverseFlattening = element.pullDouble("inverseFlattening");
    Map<String, ?> properties = parseAuthority(element, name);
    element.close();
    if (inverseFlattening == 0) {
      // Inverse flattening null is an OGC convention for a sphere.
      inverseFlattening = Double.POSITIVE_INFINITY;
    }

    return new Ellipsoid(name, semiMajorAxis, 0, inverseFlattening, name);
  }
Esempio n. 2
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  Object parsePrimem(final Element parent, final Unit angularUnit) throws ParseException {
    final Element element = parent.pullElement("PRIMEM");
    final String name = element.pullString("name");
    final double longitude = element.pullDouble("longitude");
    final Map<String, ?> properties = parseAuthority(element, name);
    element.close();

    return null;
  }
Esempio n. 3
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  Datum parseDatum(final Element parent, final Object meridian) throws ParseException {
    Element element = parent.pullElement("DATUM");
    String name = element.pullString("name");
    Ellipsoid ellipsoid = parseSpheroid(element);

    double[] toWGS84 = parseToWGS84(element); // Optional; may be
    // null.
    Map<String, Object> properties = parseAuthority(element, name);
    if (true /*ALLOW_ORACLE_SYNTAX*/ && (toWGS84 == null) && (element.peek() instanceof Number)) {
      toWGS84 = new double[7];
      toWGS84[0] = element.pullDouble("dx");
      toWGS84[1] = element.pullDouble("dy");
      toWGS84[2] = element.pullDouble("dz");
      toWGS84[3] = element.pullDouble("ex");
      toWGS84[4] = element.pullDouble("ey");
      toWGS84[5] = element.pullDouble("ez");
      toWGS84[6] = element.pullDouble("ppm");
    }
    element.close();

    return new Datum(name, toWGS84, ellipsoid, name);
  }
Esempio n. 4
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  double[] parseToWGS84(final Element parent) throws ParseException {
    final Element element = parent.pullOptionalElement("TOWGS84");
    if (element == null) {
      return null;
    }

    double dx = element.pullDouble("dx");
    double dy = element.pullDouble("dy");
    double dz = element.pullDouble("dz");

    try {
      if (element.peek() != null) {
        double ex = element.pullDouble("ex");
        double ey = element.pullDouble("ey");
        double ez = element.pullDouble("ez");
        double ppm = element.pullDouble("ppm");
        return new double[] {dx, dy, dz, ex, ey, ez, ppm};
      } else {
        return new double[] {dx, dy, dz};
      }
    } finally {
      element.close();
    }
  }
Esempio n. 5
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  String[] parseParameters(Element e) throws ParseException {
    Element p = null;
    List<String> params = new ArrayList<String>();
    while ((p = e.pullOptionalElement("PARAMETER")) != null) {
      String key = p.pullString("name");
      Double val = p.pullDouble("value");

      Param param = Param.valueOf(key);
      if (param == null) {
        throw new IllegalArgumentException("Unsupported projection parameter: " + key);
      }

      params.add(String.format("%s=%f", param.proj4, val));
    }

    return params.toArray(new String[params.size()]);
  }
Esempio n. 6
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  Unit parseUnit(final Element parent, final Unit unit) throws ParseException {
    final Element element = parent.pullElement("UNIT");
    final String name = element.pullString("name");
    final double factor = element.pullDouble("factor");

    final Map<String, ?> properties = parseAuthority(element, name);
    element.close();

    if (name != null) {
      Unit u = Units.findUnits(name.toLowerCase());
      if (u != null) {
        return u;
      }
    }

    return (factor != 1) ? times(unit, factor) : unit;
  }