Absolute (Hot Shots' Picasso API (including private classes))

java.lang.Object
- picasso.parser.language.ExpressionTreeNode
- - picasso.parser.language.expressions.UnaryFunction
  - - picasso.parser.language.expressions.Absolute

All Implemented Interfaces:

EvaluatableExpression
```
public class Absolute
extends UnaryFunction
```
Represents the abs function in the Picasso language.

Field Summary
- Fields inherited from class picasso.parser.language.ExpressionTreeNode
  gelementsToValue

Constructor Summary

Constructors
Constructor Description

Absolute(ExpressionTreeNode param)
Create a abs expression tree that takes as a parameter the given expression

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RGBColor`	`evaluate(double x, double y)`	Evaluates this expression at the given x,y point by evaluating the cosine of the function's parameter.

Methods inherited from class picasso.parser.language.expressions.UnaryFunction
equals, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Absolute
```
public Absolute(ExpressionTreeNode param)
```
    Create a abs expression tree that takes as a parameter the given expression
    
    Parameters:
    
    param - the expression to cosine
- Method Detail
  - evaluate
```
public RGBColor evaluate(double x,
                         double y)
```
    Evaluates this expression at the given x,y point by evaluating the cosine of the function's parameter.
    
    Specified by:
    
    evaluate in interface EvaluatableExpression
    
    Specified by:
    
    evaluate in class ExpressionTreeNode
    
    Parameters:
    
    x - the value of x
    
    y - the value of y
    
    Returns:
    
    the color from evaluating the cosine of the expression's parameter