svn - r34222 - branches/geometry/spike/geomet
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svn_geotools
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Author: bencaradocdavies
Date: 2009-10-24 23:09:28 -0400 (Sat, 24 Oct 2009) New Revision: 34222 Added: branches/geometry/spike/geometry/src/main/java/org/osgeo/geometry/EasyGeometryBuilder.java Log: Added EasyGeometryBuilder which is like SimpleGeometryBuilder except it takes a CRS in its constructor instead of its arguments. Added: branches/geometry/spike/geometry/src/main/java/org/osgeo/geometry/EasyGeometryBuilder.java =================================================================== --- branches/geometry/spike/geometry/src/main/java/org/osgeo/geometry/EasyGeometryBuilder.java (rev 0) +++ branches/geometry/spike/geometry/src/main/java/org/osgeo/geometry/EasyGeometryBuilder.java 2009-10-25 03:09:28 UTC (rev 34222) @@ -0,0 +1,215 @@ +package org.osgeo.geometry; + +import java.util.List; + +import org.osgeo.commons.crs.CRS; +import org.osgeo.geometry.multi.MultiCurve; +import org.osgeo.geometry.multi.MultiGeometry; +import org.osgeo.geometry.multi.MultiLineString; +import org.osgeo.geometry.multi.MultiPoint; +import org.osgeo.geometry.multi.MultiPolygon; +import org.osgeo.geometry.points.Points; +import org.osgeo.geometry.primitive.LineString; +import org.osgeo.geometry.primitive.Point; +import org.osgeo.geometry.primitive.Polygon; +import org.osgeo.geometry.primitive.Ring; + +/** + * GeometryBuilder that is the same as {@link SimpleGeometryBuilder} but that takes a {@link CRS} in + * its constructor and not its methods. + * + * @author Jody Garnett + * @author Ben Caradoc-Davies + */ +public class EasyGeometryBuilder { + + private GeometryFactory factory; + + private CRS crs; + + public EasyGeometryBuilder(GeometryFactory factory, CRS crs) { + this.factory = factory; + this.crs = crs; + } + + /** + * Creates a {@link Point} in 2D space. + * + * @param id + * identifier, may be null + * @param x + * value for first coordinate + * @param y + * value for second coordinate + * @return created {@link Point} + */ + public Point createPoint(String id, double x, double y) { + // check crs has 2 axis + return factory.point(id, new double[] { x, y }, crs); + } + + /** + * Creates a {@link Point} in 3D space. + * + * @param id + * identifier, may be null + * @param x + * value for first coordinate + * @param y + * value for second coordinate + * @param z + * value for third coordinate + * @return created {@link Point} + */ + public Point createPoint(String id, double x, double y, double z) { + return factory.point(id, new double[] { x, y, z }, crs); + } + + /** + * Creates a {@link Point} with an arbitrary number of coordinates. + * + * @param id + * identifier, may be null + * @param coordinates + * coordinate values + * @return created {@link Point} + */ + public Point createPoint(String id, double[] coordinates) { + return factory.point(id, coordinates, crs); + } + + /** + * Creates a {@link Polygon} surface. + * + * @param id + * identifier of the new geometry instance + * @param exteriorRing + * ring that defines the outer boundary, this may be null (see section 9.2.2.5 of GML + * spec) + * @param interiorRings + * list of rings that define the inner boundaries, may be empty or null + * @return created {@link Polygon} + */ + public Polygon createPolygon(String id, Ring exteriorRing, List<Ring> interiorRings) { + return factory.polygon(id, crs, exteriorRing, interiorRings); + } + + /** + * Creates a {@link LineString} geometry. + * + * @param id + * identifier, may be null + * @param points + * control points + * @return created {@link LineString} + */ + public LineString createLineString(String id, Points points) { + return factory.lineString(id, crs, points); + } + + /** + * Creates an {@link Envelope}. + * + * @param min + * minimum corner coordinates + * @param max + * maximum corner coordinates + * @return created {@link Envelope} + */ + public Envelope createEnvelope(double[] min, double[] max) { + Point lowerCorner = factory.point(null, min, crs); + Point upperCorner = factory.point(null, max, crs); + return factory.envelope(lowerCorner, upperCorner); + } + + /** + * Creates an {@link Envelope} in 2D space. + * + * @param minx + * minimum x corner coordinate + * @param miny + * minimum y corner coordinate + * @param maxx + * maximum x corner coordinate + * @param maxy + * maximum y corner coordinate + * @return created {@link Envelope} + */ + public Envelope createEnvelope(double minx, double miny, double maxx, double maxy) { + Point lowerCorner = createPoint(null, minx, miny); + Point upperCorner = createPoint(null, maxx, maxy); + return factory.envelope(lowerCorner, upperCorner); + } + + /** + * Create an {@link Envelope} from a list of Doubles. + * + * @param lowerCorner + * @param upperCorner + * @return the envelope + */ + public Envelope createEnvelope(List<Double> lowerCorner, List<Double> upperCorner) { + if (lowerCorner.size() != upperCorner.size()) { + throw new IllegalArgumentException( + "LowerCorner must be of same dimension as upperCorner."); + } + double[] lc = new double[lowerCorner.size()]; + double[] uc = new double[upperCorner.size()]; + for (int i = 0; i < lc.length; ++i) { + lc[i] = lowerCorner.get(i); + uc[i] = upperCorner.get(i); + } + return createEnvelope(lc, uc); + } + + /** + * Creates an untyped multi geometry from a list of {@link Geometry}s. + * + * @param id + * identifier, may be null + * @param members + * @return created {@link MultiGeometry} + */ + public MultiGeometry<Geometry> createMultiGeometry(String id, List<Geometry> members) { + return factory.multiGeometry(id, crs, members); + } + + /** + * Creates a {@link MultiPoint} from a list of passed {@link Point}s. + * + * @param id + * identifier, may be null + * @param members + * points that constitute the collection + * @return created {@link MultiPoint} + */ + public MultiPoint createMultiPoint(String id, List<Point> members) { + return factory.multiPoint(id, crs, members); + } + + /** + * Creates a {@link MultiCurve} from a list of passed {@link LineString}s. + * + * @param id + * identifier, may be null + * @param members + * curves that constitute the collection + * @return created {@link MultiLineString} + */ + public MultiLineString createMultiLineString(String id, List<LineString> members) { + return factory.multiLineString(id, crs, members); + } + + /** + * Creates a {@link MultiPolygon} from a list of passed {@link Polygon}s. + * + * @param id + * identifier, may be null + * @param members + * polygons that constitute the collection + * @return created {@link MultiPolygon} + */ + public MultiPolygon createMultiPolygon(String id, List<Polygon> members) { + return factory.multiPolygon(id, crs, members); + } +} Property changes on: branches/geometry/spike/geometry/src/main/java/org/osgeo/geometry/EasyGeometryBuilder.java ___________________________________________________________________ Added: svn:mime-type + text/plain Added: svn:keywords + Id URL Added: svn:eol-style + native ------------------------------------------------------------------------------ Come build with us! 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