Examples with HalfEdge org.twak.utils.geom.HalfMesh2.HalfEdge used on opensource projects

Example 16 with HalfEdge

use of org.twak.utils.geom.HalfMesh2.HalfEdge in project chordatlas by twak.

the class SkelFootprint method removeExposedFaces.

public static void removeExposedFaces(HalfMesh2 mesh) {
    System.out.println("removing exposed faces....");
    Set<HalfFace> togo = new HashSet<>(mesh.faces);
    while (!togo.isEmpty()) {
        // for ( HalfFace hf : new ArrayList<HalfFace>( mesh.faces ) ) {
        HalfFace hf = togo.iterator().next();
        togo.remove(hf);
        double exposed = 0, safe = 0;
        for (HalfEdge e : hf.edges()) {
            if (e.over == null && ((SuperEdge) e).profLine == null)
                exposed += e.length();
            else
                safe += e.length();
        }
        if (exposed > exposedFaceFrac * safe) {
            togo.addAll(hf.getNeighbours());
            hf.remove(mesh);
        }
    }
}

Example 17 with HalfEdge

use of org.twak.utils.geom.HalfMesh2.HalfEdge in project chordatlas by twak.

the class SkelFootprint method calcProfFit.

// private static Prof boringProf( double h ) {
// Prof prof = Prof.buildProfile( new Line3d( new Point3d( 0, 0, 0 ), new Point3d( 1, 0, 0 ) ), new Point3d( 0, 0, 0 ) );
// prof.add(new Point2d (0,0));
// prof.add(new Point2d (0,h));
// return prof;
// }
private void calcProfFit(HalfMesh2 mesh, List<Prof> globalProfs, Map<SuperEdge, double[]> out, ProgressMonitor m) {
    System.out.println("Building F...");
    boolean[] used = new boolean[globalProfs.size()];
    Map<SuperEdge, double[]> tmp = new HashMap();
    double[] noData = new double[globalProfs.size()];
    Arrays.fill(noData, 0);
    noData[0] = -1;
    used[0] = true;
    for (int i = 0; i < mesh.faces.size(); i++) {
        // System.out.println( "calculating profile fit for face " + i + "/" + mesh.faces.size() );
        HalfFace f = mesh.faces.get(i);
        for (HalfEdge e : f) {
            double[] fits = new double[globalProfs.size()];
            for (int g = 0; g < fits.length; g++) {
                Double d = meanDistance(globalProfs.get(g), (SuperEdge) e);
                if (d == null || Double.isNaN(d)) {
                    fits = noData;
                    break;
                } else
                    fits[g] = d;
            }
            tmp.put((SuperEdge) e, fits);
            used[Arrayz.min(fits)] = true;
        }
        if (m.isCanceled())
            return;
    }
    Arrays.fill(used, true);
    int count = 0;
    for (boolean u : used) if (u)
        count++;
    for (Map.Entry<SuperEdge, double[]> e : tmp.entrySet()) {
        double[] fits = new double[count];
        int c = 0;
        for (int i = 0; i < e.getValue().length; i++) if (used[i])
            fits[c++] = e.getValue()[i];
        out.put(e.getKey(), fits);
    }
    for (int g = globalProfs.size() - 1; g >= 0; g--) if (!used[g])
        globalProfs.remove(g);
}

Example 18 with HalfEdge

use of org.twak.utils.geom.HalfMesh2.HalfEdge in project chordatlas by twak.

the class SkelFootprint method dbgShowProfiles.

private void dbgShowProfiles(HalfMesh2 mesh, List<Prof> globalProfs, Map<SuperEdge, double[]> profFit, String name) {
    Node n = new Node();
    Jme3z.removeAllChildren(n);
    int colI = 0;
    for (HalfFace f : mesh) {
        ColorRGBA col = Jme3z.toJme(Rainbow.getColour(colI++));
        colI = colI % 6;
        Material mat = new Material(tweed.getAssetManager(), "Common/MatDefs/Light/Lighting.j3md");
        mat.setColor("Diffuse", col);
        mat.setColor("Ambient", col);
        mat.setBoolean("UseMaterialColors", true);
        if (true) {
            Loop<Point3d> loop = new Loop<>();
            for (HalfEdge e : f) loop.append(new Point3d(e.start.x, 0, e.start.y));
            MeshBuilder mb = new MeshBuilder();
            mb.add(loop.singleton(), null, false);
            Geometry g = new Geometry("floorplan", mb.getMesh());
            g.setMaterial(mat);
            n.attachChild(g);
        }
        for (HalfEdge e : f) {
            SuperEdge se = (SuperEdge) e;
            Prof bestProf = null;
            if (globalProfs == null)
                bestProf = se.prof;
            else {
                // if (se.profLine != null) {
                // 
                // SuperLine sl = ((SuperLine)se.profLine);
                // MegaFacade mf = (MegaFacade) sl.properties.get( MegaFacade.class.getName() );
                // 
                // List<Prof> pfs = mf.getTween( se.start, se.end, 0.3 );
                // 
                // if (!pfs.isEmpty())
                // bestProf = Prof.parameterize( sl, pfs );
                // else {
                // bestProf = clean.get( 0 );
                // double bestScore = Double.MAX_VALUE;
                // 
                // for ( Prof c : clean ) {
                // 
                // double score = 0;
                // boolean good = false;
                // for ( Prof r : mf.getTween( se.start, se.end, 0.3 ) ) {
                // score += c.distance( r, true, false, true );
                // good = true;
                // }
                // if ( good && score < bestScore ) {
                // bestScore = score;
                // bestProf = c;
                // }
                // 
                // }
                // }
                // 
                // 
                // }
                // if (bestProf)
                // ((SuperLine))
                // 
                double[] fitV = profFit.get(se);
                if (fitV == null)
                    continue;
                double bestScore = Double.MAX_VALUE;
                for (int ii = 0; ii < fitV.length; ii++) {
                    double d = fitV[ii];
                    if (d < bestScore) {
                        bestScore = d;
                        bestProf = globalProfs.get(ii);
                    }
                }
            // 
            // double bestScore = Double.MAX_VALUE;
            // 
            // for ( int ii = 0; ii < fitV.length; ii++ ) {
            // double d = fitV[ ii ];
            // if ( d < bestScore ) {
            // bestScore = d;
            // bestProf = globalProfs.get( ii );
            // }
            // }
            // if (false)
            // se.prof = bestProf;
            }
            if (bestProf != null) {
                Geometry g = new Geometry();
                Point3d cen = Pointz.to3(se.line().fromPPram(0.5));
                Prof goodOrientation = Prof.buildProfile(Pointz.to3(se.line()), cen);
                for (Point2d p : bestProf) goodOrientation.add(p);
                g.setMesh(goodOrientation.renderStrip(1.5, cen));
                g.setMaterial(mat);
                n.attachChild(g);
                g.updateGeometricState();
                g.updateModelBound();
            }
        }
    }
    skelGen.tweed.frame.addGen(new JmeGen(name, tweed, n), false);
}

Example 19 with HalfEdge

use of org.twak.utils.geom.HalfMesh2.HalfEdge in project chordatlas by twak.

the class SolverState method debugSolverResult.

public void debugSolverResult() {
    new Plot(mesh).add(miniPainter()).add(new ICanPaint() {

        @Override
        public void paint(Graphics2D g, PanMouseAdaptor ma) {
            Set<HalfEdge> seen = new HashSet<>();
            Color tWhite = new Color(255, 255, 255, 150);
            if (!seen.isEmpty())
                for (HalfFace f : mesh) {
                    for (HalfEdge e : f) {
                        int i = ((SuperEdge) e).profI;
                        // if (i == -1)
                        // continue;
                        Point2d loc = e.line().fromPPram(0.5);
                        String s = "" + i;
                        int offset = e.start.x < e.end.x ? -10 : 10;
                        seen.add(e);
                        Rectangle2D b = g.getFontMetrics().getStringBounds(s, g);
                        b = new Rectangle2D.Double(0, 0, b.getWidth() + 4, b.getHeight());
                        g.setColor(tWhite);
                        g.fillRect(ma.toX(loc.x) - (int) (b.getWidth() / 2), offset + ma.toY(loc.y) - (int) (b.getHeight() / 2), (int) (b.getWidth()), (int) (b.getHeight()));
                        g.setColor(Color.gray);
                        g.drawString(s, ma.toX(loc.x) - (int) (b.getWidth() / 2) + 2, offset + ma.toY(loc.y) + (int) (b.getHeight() / 2) - 3);
                    }
                }
        }
    });
}

Example 20 with HalfEdge

use of org.twak.utils.geom.HalfMesh2.HalfEdge in project chordatlas by twak.

the class SolverState method save.

public void save(File location, boolean clean) {
    try {
        if (clean)
            for (HalfFace f : mesh) {
                for (HalfEdge e : f) {
                    SuperEdge se = (SuperEdge) e;
                    if (se.profLine != null)
                        ((SuperLine) se.profLine).mega = null;
                }
            }
        System.out.print("writing state to " + location + " ...");
        location.getAbsoluteFile().getParentFile().mkdirs();
        new XStream().toXML(this, new FileOutputStream(location));
        System.out.println("done!");
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
}