リビジョン 07327852
| learn/java/javafx/HelloMap/src/hellomap/MapModel.java | ||
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PolylineShape shape = (PolylineShape) reader.next();
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int numRead = 0;
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while (shape != null) {
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MapPolyline mapPolyline = new MapPolyline(projection);
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mapPolyline.setGcsPolyline(shape);
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shapes.add(mapPolyline);
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logger.log(Level.FINER, "shape#{0} class {1} numOfParts {2}", new Object[]{numRead, shape.getClass().getName(), shape.getNumberOfParts()});
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for (int i = 0; i < shape.getNumberOfParts(); i++) {
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MapPolyline mapPolyline = new MapPolyline(projection);
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mapPolyline.setGcsPolyline(shape, i);
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shapes.add(mapPolyline);
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}
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shape = (PolylineShape) reader.next();
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numRead++;
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}
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logger.log(Level.INFO, "Read {0} shapes from a shapefile '{1}'", new Object[]{numRead, shapeFile});
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logger.log(Level.INFO, "Read {0} shapes from a shapefile {1} of shape type {2}",
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new Object[]{numRead, shapeFile.getName(), header.getShapeType()});
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} catch (IOException ex) {
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throw new UncheckedIOException(ex);
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}
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| learn/java/javafx/HelloMap/src/hellomap/MapPolyline.java | ||
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public class MapPolyline {
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private PolylineShape gcsShape;
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private int partsIndex;
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private double[] xPoints;
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private double[] yPoints;
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private Function<PointData, Point2D> projection;
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| ... | ... | |
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* GCS（地理座標系）で定義されたポリラインを受け取りPCS（投影座標系）のポリラインを保持する。
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*
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* @param gcsShape シェープファイルのポリライン
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* @param part マルチパートの何番目か
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*/
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public void setGcsPolyline(PolylineShape gcsShape) {
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public void setGcsPolyline(PolylineShape gcsShape, int part) {
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this.gcsShape = gcsShape;
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xPoints = new double[gcsShape.getNumberOfPoints()];
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yPoints = new double[gcsShape.getNumberOfPoints()];
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partsIndex = part;
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int numPoints = gcsShape.getPointsOfPart(part).length;
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xPoints = new double[numPoints];
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yPoints = new double[numPoints];
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project();
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}
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| ... | ... | |
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* 保持するGCSのポリラインから、保持する投影変換を行う。
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*/
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public void project() {
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PointData[] gcsPoints = gcsShape.getPoints();
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PointData[] gcsPoints = gcsShape.getPointsOfPart(partsIndex);
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int numPoints = gcsPoints.length;
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for (int i = 0; i < numPoints; i++) {
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Point2D pcsPoint = project(gcsPoints[i]);
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マルチパートのPolylineデータに対応