Package com.tempestasludi.processing.nurbs

Class NurbsSurface

java.lang.Object
com.tempestasludi.processing.nurbs.Nurbs
com.tempestasludi.processing.nurbs.NurbsSurface
public class NurbsSurface extends Nurbs
A nurbs surface with two parameters (s and t).

  • Constructor Summary

    Constructors
    Constructor
    Description
    NurbsSurface(PVector[][] points)
    Creates a new nurbs surface with degrees points.length - 1 and points[0].length - 1, in which every point has the same weight.
    NurbsSurface(PVector[][] points, float[][] weights)
    Creates a new nurbs with degrees points.length - 1 and points[0].length - 1 with the given base points and weights.
    NurbsSurface(PVector[][] points, float[][] weights, float[] sKnotVector, float[] tKnotVector)
    Creates a new nurbs surface with the given points, weights and knot vectors.
    NurbsSurface(PVector[][] points, float[][] weights, int sDegree, int tDegree)
    Creates a new nurbs surface of the given degrees with the given base points and weights.
    NurbsSurface(PVector[][] points, int sDegree, int tDegree)
    Creates a new nurbs surface of the given degrees in which every point has the same weight.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    draw(PGraphics g, int steps)
    Draws the surface with approximately the given number of steps for each parameter.
    void
    draw(PGraphics g, int sSteps, int tSteps)
    Draws the surface with approximately the given number of steps for each parameter.
    PVector
    evaluate(float s, float t)
    Gives the value of the surface at s=s and t=t.
    PVector
    evaluate(float s, int sKnot, float t, int tKnot)
    Gives the value of the surface at s=s and t=t with s in knot span sKnot and t in knot span tKnot.
    void
    setPoint(int sIndex, int tIndex, PVector point)
     
    void
    setPoints(PVector[][] points)
     
    void
    setWeight(int sIndex, int tIndex, float weight)
     
    void
    setWeights(float[][] weights)
     

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • NurbsSurface

      public NurbsSurface(PVector[][] points)
      Creates a new nurbs surface with degrees points.length - 1 and points[0].length - 1, in which every point has the same weight.
      Parameters:
      points - The base points

    • NurbsSurface

      public NurbsSurface(PVector[][] points, int sDegree, int tDegree)
      Creates a new nurbs surface of the given degrees in which every point has the same weight.
      Parameters:
      points - The base points
      sDegree - The degree of the surface in the first parameter
      tDegree - The degree of the surface in the second parameter

    • NurbsSurface

      public NurbsSurface(PVector[][] points, float[][] weights)
      Creates a new nurbs with degrees points.length - 1 and points[0].length - 1 with the given base points and weights.
      Parameters:
      points - The base points
      weights - The point weights

    • NurbsSurface

      public NurbsSurface(PVector[][] points, float[][] weights, int sDegree, int tDegree)
      Creates a new nurbs surface of the given degrees with the given base points and weights.
      Parameters:
      points - The base points
      sDegree - The degree of the surface in the first parameter
      tDegree - The degree of the surface in the second parameter

    • NurbsSurface

      public NurbsSurface(PVector[][] points, float[][] weights, float[] sKnotVector, float[] tKnotVector)
      Creates a new nurbs surface with the given points, weights and knot vectors.
      Parameters:
      points - The base points
      weights - The point weights
      sKnotVector - The knot vector for the first parameter
      tKnotVector - The knot vector for the second parameter

  • Method Details

    • draw

      public void draw(PGraphics g, int steps)
      Draws the surface with approximately the given number of steps for each parameter.
      Parameters:
      g - The graphics context to draw with
      steps - The number of steps used for each parameter

    • draw

      public void draw(PGraphics g, int sSteps, int tSteps)
      Draws the surface with approximately the given number of steps for each parameter.
      Parameters:
      g - The graphics context to draw with
      sSteps - The number of steps used for the first parameter
      tSteps - The number of steps used for the second parameter

    • evaluate

      public PVector evaluate(float s, float t)
      Gives the value of the surface at s=s and t=t.

    • evaluate

      public PVector evaluate(float s, int sKnot, float t, int tKnot)
      Gives the value of the surface at s=s and t=t with s in knot span sKnot and t in knot span tKnot.

    • setPoint

      public void setPoint(int sIndex, int tIndex, PVector point)

    • setPoints

      public void setPoints(PVector[][] points)

    • setWeight

      public void setWeight(int sIndex, int tIndex, float weight)

    • setWeights

      public void setWeights(float[][] weights)