104 lines
3.3 KiB
Java
104 lines
3.3 KiB
Java
/*
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* Copyright 2016 devemux86
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*
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* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.oscim.test.renderer;
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import org.oscim.backend.canvas.Color;
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import org.oscim.core.GeometryBuffer;
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import org.oscim.core.Point;
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import org.oscim.gdx.GdxMapApp;
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import org.oscim.layers.GenericLayer;
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import org.oscim.renderer.BucketRenderer;
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import org.oscim.renderer.GLViewport;
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import org.oscim.renderer.bucket.LineBucket;
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import org.oscim.theme.styles.LineStyle;
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import org.oscim.utils.geom.BezierPath;
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import java.util.List;
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public class BezierTest extends GdxMapApp {
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@Override
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public void createLayers() {
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mMap.layers().add(new GenericLayer(mMap, new BezierPathLayer()));
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}
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public static void main(String[] args) {
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GdxMapApp.init();
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GdxMapApp.run(new BezierTest());
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}
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static class BezierPathLayer extends BucketRenderer {
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public BezierPathLayer() {
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mMapPosition.scale = 0;
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GeometryBuffer g = new GeometryBuffer(100, 1);
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g.startLine();
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Point[] pts = new Point[10];
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for (int i = 0; i < 10; i++) {
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pts[i] = new Point(i * 3, (i * i) % 3 * 4);
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pts[i].x *= 10;
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pts[i].y *= 10;
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// System.out.println(pts[i]);
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g.addPoint(pts[i]);
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}
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LineBucket ll = buckets.addLineBucket(0, new LineStyle(Color.BLUE, 2f));
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ll.addLine(g);
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List<Point> ctrl = BezierPath.cubicSplineControlPoints(pts, 0.1f);
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g.clear();
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g.startLine();
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Point p0 = pts[0];
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for (int j = 1, k = 0; j < pts.length; j++) {
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Point p1 = ctrl.get(k++);
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Point p2 = ctrl.get(k++);
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Point p3 = pts[j];
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System.out.println(">>> " + p1 + " " + p2);
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for (int i = 0; i < 10; i++) {
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double mu = (i / 10f);
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Point p = BezierPath.cubicBezier(p0, p1, p2, p3, mu);
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g.addPoint(p);
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System.out.println(mu + " " + p);
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}
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p0 = p3;
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}
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ll = buckets.addLineBucket(1, new LineStyle(Color.CYAN, 2f));
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ll.addLine(g);
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}
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public synchronized void clear() {
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buckets.clear();
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setReady(false);
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}
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@Override
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public synchronized void update(GLViewport v) {
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if (mMapPosition.scale == 0)
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mMapPosition.copy(v.pos);
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if (!isReady()) {
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compile();
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}
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}
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}
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}
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