Package com.openinventor.meshviz.graph

Class PbNonLinearDataMapping2

  • All Implemented Interfaces:
    java.lang.Cloneable
    public class PbNonLinearDataMapping2
extends PbDataMapping
implements java.lang.Cloneable
    Class to define non linear data mapping. This object defines a non linear association between colors, transparencies and floating-point values. In other words, this association is defined by 2 functions F(c,v) and F(c,t): 
          F(c,v)(V) = C (with c being a color and v being a value).
      F(t,v)(V) = T (with t being a transparency and v being a value).
    There are two ways to express F(c,v)(V):

    • F(c,v)(V) is non linear, but linear per level, so a list of values sorted in increasing order and a list of colors associated define this function. Thus, the association is (V1,C1), (V2,C2),...,(Vn,Cn) with V1 < V2 <...< Vn. For a given value vi, Vk <= vi <= Vk+1, the associated color ci is determined by a linear interpolation between (Vk,Ck) and (Vk+1,Ck+1).
    • F(c,v)(V) is defined by level, so a list of n values sorted in increasing order and a list of n+1 colors associated define this function. Thus, the association is C1, (V1,C2), (V2,C3),...,(Vn,Cn+1) with V1 < V2 <...< Vn. For a given value vi, Vk <= vi < Vk+1, the associated color ci is Ck+1. If vi < V1, the associated color ci is C1. In the two methods, the list of values is sorted in increasing order (and the associated colors also). By default, F(c,v)(V) is linear by level (LINEAR_PER_LEVEL), the number of colors and values is 2 with V1=0, V2=0, C1=(0,0,0) (black) and C2=(1,1,1) (white).

    There are as well, two ways to express F(t,v)(V)

    • Constructor Detail

      • PbNonLinearDataMapping2

        public PbNonLinearDataMapping2()
        Default constructor.

      • PbNonLinearDataMapping2

        public PbNonLinearDataMapping2​(PbNonLinearDataMapping2 nonLinearDataMap2)
        Copy constructor.

    • Method Detail

      • clone

        public java.lang.Object clone()

      • setValues

        public void setValues​(PbNonLinearDataMapping2.Types type,
                      float[] v,
                      SbColor[] c,
                      float[] t)
        Sets non linear function for data mapping, with RGB color and transparencies. If type = NON_LINEAR_PER_LEVEL, the number of colors and transparencies must be equal to numValues + 1, otherwise it must be equal to numValues.

      • getValuesList

        public float[] getValuesList()
        Gets the list of values defining the current non linear data mapping.

      • getDirectTransparencyList

        public java.nio.FloatBuffer getDirectTransparencyList()
        Gets the list of transparencies defining the current non linear data mapping.

      • getDirectValuesList

        public java.nio.FloatBuffer getDirectValuesList()
        Gets the list of values defining the current non linear data mapping.

      • getTransparencyList

        public float[] getTransparencyList()
        Gets the list of transparencies defining the current non linear data mapping.

      • setValues

        public void setValues​(PbNonLinearDataMapping2.Types type,
                      float[] v,
                      SbColor[] c)
        Sets non linear function for data mapping, with RGB color. If type = NON_LINEAR_PER_LEVEL, the number of colors must be equal to numValues + 1, otherwise it must be equal to numValues.

      • getRGBColorsList

        public SbColor[] getRGBColorsList()
        Gets the list of RGB colors defining the current non linear data mapping.

      • getDirectRGBColorsList

        public java.nio.FloatBuffer getDirectRGBColorsList()
        Gets the list of RGB colors defining the current non linear data mapping.