one.empty3.library.core.nurbs.CameraInPath Maven / Gradle / Ivy

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3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
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/*
 * Copyright (c) 2023. Manuel Daniel Dahmen
 *
 *
 *    Copyright 2012-2023 Manuel Daniel Dahmen
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package one.empty3.library.core.nurbs;

import one.empty3.library.Camera;
import one.empty3.library.Matrix33;
import one.empty3.library.Point3D;
import one.empty3.library.StructureMatrix;

import java.util.logging.Level;
import java.util.logging.Logger;

/*__
 * @author Manuel Dahmen
 */
public class CameraInPath extends Camera {
    //private double angleA = 0;
    //private double angleB = 0;

    /*__
     * Need to get a position of the camera since it's a Z-axis
     * Rotate, position angles around the camera.
     */
    /*public void rotateSphere(double angleARad, double angleBRad) {
        this.angleA = angleARad;
        this.angleB = angleBRad;
    }*/

    protected final StructureMatrix curve = new StructureMatrix<>(0, ParametricCurve.class);
    protected final StructureMatrix t = new StructureMatrix<>(0, Double.class);

    public CameraInPath() {
        super(false);
        this.curve.setElem(new Point3DS(Point3D.Z));
        t.setElem(0.0);
    }

    public CameraInPath(ParametricCurve maCourbe) {
        super(false);
        setEye(maCourbe.calculerPoint3D(0.0));
        setLookat(maCourbe.calculerPoint3D(0.1));
        t.setElem(0.0);
        this.curve.setElem(maCourbe);
        this.setT(0.0);
    }

    public CameraInPath(ParametricCurve maCourbe, Point3D vectVert) {
        super(false);
        setEye(maCourbe.calculerPoint3D(0.0));
        setLookat(maCourbe.calculerPoint3D(0.1));
        t.setElem(0.0);
        this.curve.setElem(maCourbe);
        this.setVerticale(vectVert);
    }

    public ParametricCurve getCurve() {
        return curve.getElem();
    }

    public void setCurve(ParametricCurve maCourbe) {
        this.curve.setElem(maCourbe);
    }

    /*
        public void calculerMatriceT(Point3D verticale) {
            double t = this.t.getElem() ;
            Point3D eye = courbe.getElem().calculerPoint3D(t);
            //TODO DEV
            //setLookat(courbe.getElem().calculerPoint3D(t+ t* 1.001));

            Point3D dir = getLookat().moins(eye).norme1();
            Point3D tan = eye.moins(courbe.getElem().calculerPoint3D(t - 0.001)).norme1();
            Point3D vert = getVerticale().getElem()==null?(tan.prodVect(dir).norme1());//:getVerticale().data0d;
            matrice.setElem(new Matrix33(new Point3D[] { tan, tan.prodVect(dir).norme1(),  dir }));
            Logger.getAnonymousLogger().log(Level.INFO, "Matrice "+matrice.getElem().toString());
            setEye(eye);

        }
    */


    public Point3D pProjVerticale(Point3D vVert) {
        if(vVert==null) {
            vVert = getEye().moins(getLookat()).norme1().prodVect(Point3D.X.prodVect(
                    getEye().moins(getLookat())
            ));
        }
        vVert = vVert.norme1();
        double a, b, c, d;
        Point3D dir = getEye().moins(getLookat()).norme1();
        d = dir.dot(eye());
        double k = vVert.dot(dir)-eye().dot(dir);
        Point3D projete = vVert.plus(dir.mult(k));

        return projete;
    }
    @Override
    public void calculerMatrice(Point3D verticale) {
        double t = this.t.getElem();
        Point3D eye = curve.getElem().calculerPoint3D(t);
        //TODO DEV
        //setLookat(courbe.getElem().calculerPoint3D(t+ t* 1.001));

        Point3D tan = eye.moins(curve.getElem().calculerPoint3D(t - 0.001)).norme1();
        Point3D vert2 = pProjVerticale(verticale).moins(eye().norme1()).norme1();
        matrice.setElem(new Matrix33(new Point3D[]{tan, vert2,
                tan.prodVect(vert2).norme1()}).tild());
        setVerticale(vert2);
        Logger.getAnonymousLogger().log(Level.INFO, "Matrice (tan, vert, dir)" + matrice.getElem().toString());
        setEye(eye);
    }

    @Override
    public Point3D eye() {
        return curve.getElem().calculerPoint3D(t.getElem());
    }

    @Override
    public Point3D getEye() {
        return curve.getElem().calculerPoint3D(t.getElem());
    }

    @Override
    public Point3D getLookat() {
        return curve.getElem().calculerPoint3D(t.getElem()+0.1);
    }

    @Override
    public Point3D calculerCurveT(double u, double t) {
        this.t.setElem((Double) t);
        calculerMatrice(null);
        return curve.getElem().calculerPoint3D((Double) t);
    }

    @Override
    public Point3D calculerPointDansRepere(Point3D p) {
        return super.calculerPointDansRepere(p);
    }

    @Override
    public void declareProperties() {
        super.declareProperties();
        getDeclaredDataStructure().put("curve/Courbe 0-1", curve);
        getDeclaredDataStructure().put("t/Temps 0-1", t);
    }


    public void setT(double t) {
        this.t.setElem(t);
        calculerMatrice(verticale.getElem());
    }
}