Class: Image_Graph_Dataset_VectorFunction

Source Location: /Image_Graph-0.8.0/Graph/Dataset/VectorFunction.php

Class Overview

Image_Graph_Dataset
   |
   --Image_Graph_Dataset_VectorFunction

Vector Function data set.

Author(s):

Stefan Neufeind <pear.neufeind at speedpartner.de>
Jesper Veggerby <pear.nosey at veggerby.dk>

Version:

Release: 0.8.0

Copyright:

2003-2009 The PHP Group

Methods

Inherited Variables

Inherited Methods

Class: Image_Graph_Dataset

Image_Graph_Dataset::Image_Graph_Dataset(): Image_Graph_Dataset [Constructor]
Image_Graph_Dataset::addPoint(): Add a point to the dataset
Image_Graph_Dataset::count(): The number of values in the dataset
Image_Graph_Dataset::first(): The first point
Image_Graph_Dataset::last(): The last point
Image_Graph_Dataset::maximumX(): The maximum X value
Image_Graph_Dataset::maximumY(): The maximum Y value
Image_Graph_Dataset::minimumX(): The minimum X value
Image_Graph_Dataset::minimumY(): The minimum Y value
Image_Graph_Dataset::setName(): Sets the name of the data set, used for legending

Class Details

[line 53]
Vector Function data set.

Points are generated by calling 2 external functions, fx. x = sin(t) and y = cos(t)

Author: Stefan Neufeind <pear.neufeind@speedpartner.de>
Author: Jesper Veggerby <pear.nosey@veggerby.dk>
Version: Release: 0.8.0
Copyright: 2003-2009 The PHP Group
Link: http://pear.php.net/package/Image_Graph
License: LGPL License 2.1

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Method Detail

Image_Graph_Dataset_VectorFunction (Constructor) [line 95]

Image_Graph_Dataset_VectorFunction Image_Graph_Dataset_VectorFunction(
double
$minimumT, double
$maximumT, string
$functionX, string
$functionY, int
$points)

Image_Graph_VectorFunctionDataset [Constructor]

Parameters:

double	`$minimumT`	—	The minimum value of the vector function variable
double	`$maximumT`	—	The maximum value of the vector function variable
string	`$functionX`	—	The name of the X function, if must be a single parameter function like fx sin(x) or cos(x)
string	`$functionY`	—	The name of the Y function, if must be a single parameter function like fx sin(x) or cos(x)
int	`$points`	—	The number of points to create

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addPoint [line 115]

void addPoint(
int
$x, [int
$y = false], [var
$ID = false])

Add a point to the dataset

Overrides Image_Graph_Dataset::addPoint() (Add a point to the dataset)

Parameters:

int	`$x`	—	The X value to add
int	`$y`	—	The Y value to add, can be omited
var	`$ID`	—	The ID of the point

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