TAChart

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Revision as of 05:43, 22 March 2010 by Ask (talk | contribs) (→‎Features)
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About

TAChart is a charting LGPL component for Lazarus (TeeChart like). It contains the functions that Philippe Martinole developed for the TeleAuto project and lots of changes introduced by Luis Rodrigues while porting the Epanet application from Delphi to Lazarus. The code was then extensively rewritten, expanded and is now maintained by Alexander Klenin.

If you have questions, bug reports or feature requests, please post them to the Lazarus mailing list.

Features

  • Pie Series
  • Bar Series
  • Area Series
  • Line Series (can work as Point Series)
  • Function Series with domain support
  • Unlimited number of series and points on graph
  • Flexible chart sources, including design-time editable, random, dynamic and db-aware sources.
  • Graph legend, title and footer
  • Axis labels and marks, manually set or auto-generated
  • Arbitrary number of axises per chart
  • Axis inversion, independent scale and offset, logarithmic scale
  • Interactive zoom
  • Reticule or vertical reticule with point measure
  • Auto or manual graph limits
  • Smart marks drawing
  • Vertical and horizontal lines
  • Easily extensible with new graph types

Screenshot

Here is an example of TAChart displaying a Line Series, Bar Series and Pie Series


tachart.png

Author

Luís Rodrigues

Philippe Martinole

Alexander Klenin

Download

The latest stable release can be found on the in the Lazarus SVN repository (The components are on the Chart Tab)

The old code developed by Philippe is Here: Lazarus CCR Files page.

Change Log

See readme in Lazarus source in (Lazarus Install Dir)/components/tachart/

Usage

See included example in Lazarus source in (Lazarus Install Dir)/components/tachart/demo/