Class AccLinePlot Extends Plot
(Defined in: jpgraph_line.php : 450)
 
 AccLinePlot  Plot 
 Max() 
 Min() 
 SetInterpolateMode() 
 __construct() 
 HideLegend() 
 PreScaleSetup() 
 SetCenter() 
 SetColor() 
 SetCSIMTargets() 
 SetLegend() 
 SetLineWeight() 
 

Class usage and Overview
Accumulated bar plot.
Used to create a line plot where each individual data point is the sum of the individual series data points.

Features:

  1. Unlimited number of series

 

See also related classes:
AccBarPlot and LinePlot

 


Class Methods

 

AccLinePlot ::
Max()
Return the max value of data points in plot.


Description:
Takes into account all series and returns the maximum Y and X values for all the data series. Used internally to determine the autoscaling. 
 
See also:

Example:

list($xmax,$ymax) = $acclineplot->Max();

 

AccLinePlot ::
Min()
Return the min value of all data points in plot.


Description:
Takes into account all series and returns the minimum Y and X value. Used internally to determine autoscaling. 
 
See also:

Example:

list($xmin,$ymin) = $acclineplot->Min()

 

AccLinePlot ::
SetInterpolateMode($aIntMode)
Enable interpolate mode

ArgumentDefaultDescription
$aIntMode  TRUE=Enable interpolation

Description:
When plotting accumulated line plots which have NULL values as data (i.e. '-') they will distort the accumulated plot since they will in effect be interpretated as having value 0. This means that there will be a drop in the plot. The only way to avoid this is to calculate the intermediate value. This can be achieved by calculating a linear interpoaltion for the missing value(s). Calling this method will replace all '-' values with an interpolated value.  

Example:

$accline->SetInterpolateMode()

 

AccLinePlot ::
__construct($plots)
Constructor

ArgumentDefaultDescription
$plots  Array of line plots to use

Description:
Creates a new accumulated line plot from a number of line plots. 
 
See also:

Example:

$line1 = new LinePlot($datay1);
$line2 = new LinePlot($datay2);
$aline = array($line1,$line2);
$acclineplot = new AccLinePlot($aline);