リビジョン b912a32e
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* @author Toru Takahashi
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*/
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public class TinyMapModel {
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public static final double R = 6_371_007.181; // m
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private File mapFile;
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private List<TinyMapPolyline> polylines = new ArrayList<>();
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private Function<PointData, Point2D> projection;
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private Function<PointData, Point2D> sansonProjection = p -> {
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double y = Math.toRadians(p.getY());
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double sx = R * Math.toRadians(p.getX()) * Math.cos(y);
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double sy = R * y;
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return new Point2D(sx, sy);
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};
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public TinyMapModel(File selected) {
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mapFile = selected;
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projection = p -> new Point2D(p.getX() * 100_000, p.getY() * 100_000); // 1度100kmとした直交座標変換
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}
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// 1度100kmとした直交座標変換
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//projection = p -> new Point2D(p.getX() * 100_000, p.getY() * 100_000);
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projection = sansonProjection;
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}
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public void setProjection(Function<PointData, Point2D> projection) {
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this.projection = projection;
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}
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サンソン図法（真球モデル）の投影を自前で実装