Class: Image_Graph_Dataset_Function

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

Class Overview

Image_Graph_Dataset
   |
   --Image_Graph_Dataset_Function

Function data set, points are generated by calling an external function.

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

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 54]
Function data set, points are generated by calling an external function.

The function must be a single variable function and return a the result, builtin functions that are fx sin() or cos(). User defined function can be used if they are such, i.e: function myFunction($variable)

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_Function (Constructor) [line 73]

Image_Graph_Dataset_Function Image_Graph_Dataset_Function(
double
$minimumX, double
$maximumX, string
$function, int
$points)

Image_Graph_FunctionDataset [Constructor]

Parameters:

double	`$minimumX`	—	The minimum X value
double	`$maximumX`	—	The maximum X value
string	`$function`	—	The name of the function, if must be a single parameter function like fx sin(x) or cos(x)
int	`$points`	—	The number of points to create

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addPoint [line 94]

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

Add a point to the dataset.

You can't add points to a function 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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