one.empty3.library.core.nurbs.CourbeParametriquePolynomiale Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of empty3-library-3d Show documentation
Show all versions of empty3-library-3d Show documentation
3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
/*
* 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.Point3D;
import one.empty3.library.StructureMatrix;
/*__
* @author Manuel Dahmen [email protected]_
*/
public class CourbeParametriquePolynomiale extends ParametricCurve {
protected final StructureMatrix coefficients= new StructureMatrix<>(1, Point3D.class);
protected final StructureMatrix power = new StructureMatrix<>(0, Integer.class);
public CourbeParametriquePolynomiale(Point3D[] coefficients) {
super();
this.coefficients.setAll(coefficients);
this.power.setElem(coefficients.length);
}
public CourbeParametriquePolynomiale() {
super();
power.setElem( 2);
}
public void declareProperties() {
super.declareProperties();
power.setElem(coefficients.getData1d().size());
getDeclaredDataStructure().put(("coefficients/points de contrôle"), coefficients);
getDeclaredDataStructure().put(("power/puissance du polynone"), power);
}
@Override
public Point3D calculerPoint3D(double t) {
Point3D sum = Point3D.O0;
for (int i = 0; i < coefficients.getData1d().size(); i++) {
sum = sum.plus(coefficients.getElem(i).mult(Math.pow(t, i)));
}
return sum;
}
@Override
public Point3D calculerVitesse3D(double t) {
Point3D sum = Point3D.O0;
for (int i = 0; i < coefficients.getData1d().size() - 1; i++) {
sum = sum.plus(coefficients.getElem(i).mult(Math.pow(t, i - 1) * i));
}
return sum;
}
public StructureMatrix getCoefficients() {
return coefficients;
}
public void setCoefficients(StructureMatrix coefficients) {
this.coefficients.setAll(coefficients.getData1d().toArray(new Point3D[0]));
}
public Integer getPower() {
return power.getElem();
}
public void setPower(Integer pow) {
power.setElem(pow);
}
}