Difference between revisions of "TAChart"

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{{TAChart}}
 
{{TAChart}}
  
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===About===
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=== About ===
 
TAChart is a charting LGPL component for Lazarus (TeeChart LineSerie like).  
 
TAChart is a charting LGPL component for Lazarus (TeeChart LineSerie like).  
  
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This component was designed for cross-platform applications.
 
This component was designed for cross-platform applications.
  
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===Screenshot===
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=== Screenshot ===
  
 
Here is an exemple of TAChart displaying a noisy line (in blue), a fitted line (in black) and a cross hair:
 
Here is an exemple of TAChart displaying a noisy line (in blue), a fitted line (in black) and a cross hair:
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<center>[[Image:Tachart.png]]</center>
 
<center>[[Image:Tachart.png]]</center>
  
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===Author===
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=== Author ===
 
[[User:Marty|Philippe Martinole]]  
 
[[User:Marty|Philippe Martinole]]  
  
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===License===
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=== License ===
 
[http://www.opensource.org/licenses/lgpl-license.php LGPL] (please contact the author if the LGPL doesn't work with your project licensing)
 
[http://www.opensource.org/licenses/lgpl-license.php LGPL] (please contact the author if the LGPL doesn't work with your project licensing)
 
   
 
   
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===Download===
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=== Download ===
 
The latest stable release can be found on the [http://sourceforge.net/project/showfiles.php?group_id=92177&package_id=177586 Lazarus CCR Files page].
 
The latest stable release can be found on the [http://sourceforge.net/project/showfiles.php?group_id=92177&package_id=177586 Lazarus CCR Files page].
  
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===Change Log===
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=== Change Log ===
 
* Version 1.0 2005/04/06
 
* Version 1.0 2005/04/06
 
* Version 1.1 2005/06/10
 
* Version 1.1 2005/06/10
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   - Bug correction for cross hair
 
   - Bug correction for cross hair
  
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===Dependencies / System Requirements===
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=== Dependencies / System Requirements ===
 
* None
 
* None
  
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Tested on Windows and Linux.
 
Tested on Windows and Linux.
  
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===Installation===
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=== Installation ===
 
* Create the directory lazarus\components\tagraph
 
* Create the directory lazarus\components\tagraph
 
* On this directory, unzip the files from tagraph\lazarus\component of the zip file
 
* On this directory, unzip the files from tagraph\lazarus\component of the zip file
 
* Open lazarus
 
* Open lazarus
 
* Open the package ta.lpk with Component/Open package file (.lpk)
 
* Open the package ta.lpk with Component/Open package file (.lpk)
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* Click on Compile
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* (Click on Compile only if you don't want to install the component into the IDE)
 
* Click on Install
 
* Click on Install
  
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===Usage===
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=== Usage ===
 
Drop the component on a form. Change some properties as you like and use this code to add a curve :
 
Drop the component on a form. Change some properties as you like and use this code to add a curve :
  
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http://www.martinole.org/Waves.html
 
http://www.martinole.org/Waves.html
  
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===The TestOfTAGraph Example Application===
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=== The TestOfTAGraph Example Application ===
 
The TestOfTAGraph application requires TAGraph to be installed in order
 
The TestOfTAGraph application requires TAGraph to be installed in order
 
to compile and operate. It shows how to use many of the TAGraph features.
 
to compile and operate. It shows how to use many of the TAGraph features.

Revision as of 20:37, 15 July 2006

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About

TAChart is a charting LGPL component for Lazarus (TeeChart LineSerie like).

Its main caracteristics are :

  • Unlimited number of curves
  • Unlimited number of points
  • Graph legend
  • Graph title
  • Axis labels
  • Interactive zoom
  • Cross hair or vertical cross hair cursor with point measure
  • Line drawing between points
  • Point drawing on each point
  • Different point shapes (square,circle, cross, diagonal cross and star)
  • Color each point and line
  • Mirror on X axis
  • Auto or manual graph limits
  • Linear least square fitting
  • Smart marks drawing
  • Vertical and horizontal line graph type
  • Easily extensible to new graph types


The download contains the component, an installation package and a demo application, that illustrates the features of the component along with some instrumentation for evaluating the chart on a given system.

This component was designed for cross-platform applications.

Screenshot

Here is an exemple of TAChart displaying a noisy line (in blue), a fitted line (in black) and a cross hair:


Tachart.png

Author

Philippe Martinole

License

LGPL (please contact the author if the LGPL doesn't work with your project licensing)

Download

The latest stable release can be found on the Lazarus CCR Files page.

Change Log

  • Version 1.0 2005/04/06
  • Version 1.1 2005/06/10
 - TTAChart.GetNewColor added to automate color choice. 
 - A lot of bug corrections.
  • Version 1.2 2006/02/01
 - New graphe simple type : Horizontal or vertical line
 - New point shapes
 - Bug correction for Linux
 - Bug correction for cross hair

Dependencies / System Requirements

  • None

Status: Stable

Issues: Tested on Windows and Linux.

Installation

  • Create the directory lazarus\components\tagraph
  • On this directory, unzip the files from tagraph\lazarus\component of the zip file
  • Open lazarus
  • Open the package ta.lpk with Component/Open package file (.lpk)
  • (Click on Compile only if you don't want to install the component into the IDE)
  • Click on Install

Usage

Drop the component on a form. Change some properties as you like and use this code to add a curve : 

procedure TForm1.Button1Click(Sender: TObject);
var
  Serie:TTASerie;
  i:Integer;
begin
Serie:=TTASerie.Create(TAChart1);
TAChart1.AddSerie(Serie);
Serie.ShowLines:=True;
Serie.ShowPoints:=False;
Serie.Title:='Sinus';
for i:=-500 to 499 do
   Serie.AddXY(i/10,Sin(i/10)*10,clBlack);
end;

Use this code to add a horizontal line : 

procedure TForm1.Button12Click(Sender: TObject);
var
  TALine:TTALine;
begin
TALine:=TTALine.Create(TAChart1);
TAChart1.AddSerie(TALine);
TALine.LineStyle:=lsHorizontal;
TALine.Position:=10.231;
TALine.Visible:=True;
end;

See the example project TestOfTAGraph for additional examples of component usage. See a complex application example written in Delphi6PE at the adress : http://www.martinole.org/Waves.html

The TestOfTAGraph Example Application

The TestOfTAGraph application requires TAGraph to be installed in order to compile and operate. It shows how to use many of the TAGraph features.

Installation

  • Open TestOfTaGraph.lpi
  • compile
  • run
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