예제 #1
0
  /**
   * Find the generic geometry type of the feature collection. Simple method - find the 1st non null
   * geometry and its type is the generic type. returns 0 - all empty/invalid <br>
   * 1 - point <br>
   * 2 - line <br>
   * 3 - polygon <br>
   *
   * @param fc feature collection containing tet geometries.
   */
  int findBestGeometryType(FeatureCollection fc) {
    Geometry geom;

    for (Iterator i = fc.iterator(); i.hasNext(); ) {
      geom = ((Feature) i.next()).getGeometry();

      if (geom instanceof Point) {
        return 1;
      }

      if (geom instanceof MultiPoint) {
        return 1;
      }

      if (geom instanceof Polygon) {
        return 3;
      }

      if (geom instanceof MultiPolygon) {
        return 3;
      }

      if (geom instanceof LineString) {
        return 2;
      }

      if (geom instanceof MultiLineString) {
        return 2;
      }
    }

    return 0;
  }
예제 #2
0
  /**
   * look at all the data in the column of the featurecollection, and find the largest string!
   *
   * @param fc features to look at
   * @param attributeNumber which of the column to test.
   */
  int findMaxStringLength(FeatureCollection fc, int attributeNumber) {
    int l;
    int maxlen = 0;
    Feature f;

    for (Iterator i = fc.iterator(); i.hasNext(); ) {
      f = (Feature) i.next();
      l = f.getString(attributeNumber).length();

      if (l > maxlen) {
        maxlen = l;
      }
    }

    return maxlen;
  }