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Class picture.ValueMap

java.lang.Object
   |
   +----picture.PicPipe
           |
           +----picture.ValueMap

public class ValueMap
extends PicPipe
This pipeline gets a double and returns a double based on a piecewise linear function. The function is formed by linear interpolation of a list of (x,y) pairs. If the value exactly matches one or more x values, it takes the first one. The (x,y) pairs should be sorted with increasing x values.

This code is (c) 1996 Leemon Baird <leemon@cs.cmu.edu>, http://www.cs.cmu.edu/~baird
The source and object code may be redistributed freely. If the code is modified, please state so in the comments.

Version:
1.0, 20 April 96
Author:
Leemon Baird

Variable Index

 o entries

Constructor Index

 o ValueMap()

Method Index

 o BNF(int)
Return BNF description of parameters for this object, when parsing language lang.
 o get(PicPipeList, Colors, double, double, double, double, double, double, double, double)
Return the color for a particular pixel given its size and location.
 o parse(Parser, int)
Parse the input file to get the parameters for this object.
 o unparse(Unparser, int)
Output a description of this object that can be parsed with parse().

Variables

 o entries
 protected ValueMapEntry entries[]

Constructors

 o ValueMap
 public ValueMap()

Methods

 o BNF
 public String BNF(int lang)
Return BNF description of parameters for this object, when parsing language lang.

Overrides:
BNF in class PicPipe
 o unparse
 public void unparse(Unparser u,
                     int lang)
Output a description of this object that can be parsed with parse().

Overrides:
unparse in class PicPipe
See Also:
Parsable
 o parse
 public Object parse(Parser p,
                     int lang) throws ParserException
Parse the input file to get the parameters for this object.

Throws: ParserException
parser didn't find the required token
Overrides:
parse in class PicPipe
 o get
 public void get(PicPipeList source,
                 Colors color,
                 double x,
                 double y,
                 double z,
                 double t,
                 double dx,
                 double dy,
                 double dz,
                 double dt)
Return the color for a particular pixel given its size and location.

Overrides:
get in class PicPipe

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