Package org.jzy3d.contour

Class AbstractContourGenerator

  • Direct Known Subclasses:
    MapperContourMeshGenerator, MapperContourPictureGenerator
    public abstract class AbstractContourGenerator
extends Object
    The AbstractContourGenerator provides various utility fonctions to compute core contour matrices. A concrete generator should implement computeHeightMatrix() according to the input object on which one desire to compute a contour (Mappers, Shapes, etc).
    Author:
    Juan Barandiaran

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected double maxValue  
      protected double minValue  
      protected static double NON_CONTOUR  

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      protected double[][] computeContour​(int xRes, int yRes, double[] sortedLevels)
      Calculates the points in the XY plane that belong to a contour whose height is defined by the user in an array
      protected double[][] computeContour​(int xRes, int yRes, int nLevels)
      Calculates the points in the XY plane that belong to a contour
      protected double[][] computeFilledContour​(int xRes, int yRes, int nLevels)
      To paint the contours in the XY plane filling with color between contour and contour
      protected abstract void computeHeightMatrix​(double[][] matrix, int xRes, int yRes)  
      protected double[][] computeXYColors​(int xRes, int yRes, int nLevels)
      Having the colors of the surface on the XY plane gives a lot of info in some surfaces
      protected void extractCountours​(double[][] contours, double[][] matrix, int xSpan, int ySpan)
      A point belongs to the contour if it is bigger than anyone of the surrounding points of the Quantized matrix It is NOT part of the contour if it is equal (or smaller) to all the surrounding points
      protected void quantizeMatrix​(double[][] matrix, double[] sortedLevels)
      Force the input matrix to have the minimum bigger value of the user provided sortedLevels list
      protected void quantizeMatrix​(double[][] matrix, double min, double max, int n)
      Force the input matrix to have values rounded to one of the N steps in the range [min;max].

    • Field Detail

      • NON_CONTOUR

        protected static double NON_CONTOUR

      • minValue

        protected double minValue

      • maxValue

        protected double maxValue

    • Constructor Detail

      • AbstractContourGenerator

        public AbstractContourGenerator()

    • Method Detail

      • computeHeightMatrix

        protected abstract void computeHeightMatrix​(double[][] matrix,
                                            int xRes,
                                            int yRes)

      • computeContour

        protected double[][] computeContour​(int xRes,
                                    int yRes,
                                    int nLevels)
        Calculates the points in the XY plane that belong to a contour

      • computeContour

        protected double[][] computeContour​(int xRes,
                                    int yRes,
                                    double[] sortedLevels)
        Calculates the points in the XY plane that belong to a contour whose height is defined by the user in an array

      • computeFilledContour

        protected double[][] computeFilledContour​(int xRes,
                                          int yRes,
                                          int nLevels)
        To paint the contours in the XY plane filling with color between contour and contour

      • computeXYColors

        protected double[][] computeXYColors​(int xRes,
                                     int yRes,
                                     int nLevels)
        Having the colors of the surface on the XY plane gives a lot of info in some surfaces

      • quantizeMatrix

        protected void quantizeMatrix​(double[][] matrix,
                              double[] sortedLevels)
        Force the input matrix to have the minimum bigger value of the user provided sortedLevels list

      • quantizeMatrix

        protected void quantizeMatrix​(double[][] matrix,
                              double min,
                              double max,
                              int n)
        Force the input matrix to have values rounded to one of the N steps in the range [min;max].

      • extractCountours

        protected void extractCountours​(double[][] contours,
                                double[][] matrix,
                                int xSpan,
                                int ySpan)
        A point belongs to the contour if it is bigger than anyone of the surrounding points of the Quantized matrix It is NOT part of the contour if it is equal (or smaller) to all the surrounding points