lazarus

mirror of https://gitlab.com/freepascal.org/lazarus/lazarus.git synced 2025-05-16 01:04:08 +02:00

History

ask d0b38815eb TAChart: Fixes to label rotation git-svn-id: trunk@29313 -		2011-02-02 06:06:17 +00:00
..
demo	TAChart: Fixes to label rotation	2011-02-02 06:06:17 +00:00
fpdoc
icons
test	TAChart: Do not automatically normalize rectangle before expanding it. Add test.	2011-01-18 08:54:00 +00:00
Makefile	Components: updated makefiles	2011-02-01 23:32:08 +00:00
Makefile.compiled	updated Makefile.compiled	2011-01-13 12:07:32 +00:00
Makefile.fpc	Components: updated makefiles	2011-02-01 23:32:08 +00:00
README.txt
tachartaxis.pas	TAChart: Use styles brushes for axis stripes	2011-01-09 09:17:05 +00:00
tachartlazaruspkg.lpk	TAChart: Extract TACustomSource unit	2010-12-20 09:44:42 +00:00
tachartlazaruspkg.pas	TAChart: Extract TACustomSource unit	2010-12-20 09:44:42 +00:00
tachartutils.pas	TAChart: Extract RotateRect utility function	2011-02-02 05:33:37 +00:00
tacustomseries.pas	TAChart: Initial implementation of polar series	2011-01-18 09:02:33 +00:00
tacustomsource.pas	TAChart: Fix TCalculatedChartSource crashes, update line demo	2010-12-22 12:24:31 +00:00
tadbsource.pas	TAChart: Extract TACustomSource unit	2010-12-20 09:44:42 +00:00
tadrawutils.pas	TAChart: Fixes to label rotation	2011-02-02 06:06:17 +00:00
tafuncseries.pas	TAChart: Optimize TFuncSeries drawing	2011-01-18 06:07:26 +00:00
tagraph.lrs
tagraph.pas	TAChart: Support chart title and footer rotation	2011-02-02 05:46:25 +00:00
talegend.pas	TAChart: Reset clipping after legend drawing. Fixes issue #18628	2011-01-28 16:21:46 +00:00
talegendpanel.pas
tamultiseries.pas
taradialseries.pas	TAChart: Initial implementation of polar series	2011-01-18 09:02:33 +00:00
taseries.pas	TAChart: Do not store TConstantLine.SeriesColor property since it duplicates Pen.Color	2011-02-02 03:14:58 +00:00
taserieseditor.pas
tasources.pas	TAChart: Fix TCalculatedChartSource crashes, update line demo	2010-12-22 12:24:31 +00:00
tastyles.pas	TAChart: Add TChartStyle.UsePen and .UseBrush properties. Update demo.	2011-01-09 09:32:12 +00:00
tasubcomponentseditor.lfm
tasubcomponentseditor.pas
tatools.pas	TAChart: Centralize Infinity handling in SafeInfinity function	2010-12-20 04:09:42 +00:00
tatransformations.pas	TAChart: Add TUserDefinedAxisTransform class	2011-02-02 03:06:51 +00:00
tatypes.pas	TAChart: Support chart title and footer rotation, part 2	2011-02-02 05:55:19 +00:00

README.txt

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.


Its main caracteristics are :

    * Pie Series
    * Bar Series
    * Area Series
    * Line Series (can work as Point Series)    
    * Unlimited number of  graphs
    * Unlimited number of points
    * Graph legend
    * Graph title
    * Graph footer
    * Axis labels
    * Interactive zoom
    * Reticule or vertical reticule with point measure
    * Mirror on X axis
    * Auto or manual graph limits
    * Smart marks drawing
    * Vertical and horizontal line graph type
    * Easily extensible to new graph types


Why Create This
---------------

I've been porting Epanet from Delphi into Lazarus, since I need a TeeChart like component and TeeChart was not free
I had to build a new component.

I looked arround the net for a good component and found Philippe's TAChart and decided to improve it.

There is still plenty of bugs on the component but at least it works with all the cases I need. I will continue to develop
this, but since it's allready working I decided to submit to general review.
    
Installation
------------
    * Open the package tachartlazaruspkg.lpk with Component / Open package file (.lpk)
    * Click on Compile
    * Click on Install

Changes
-------

* 01/06/2008 - Fixed Legend selection bug, DrawLegend bugfix (by Anton Vychegzhanin)
* 25/01/2008 - Code cleanups and bugfixes (bugfixes by Uwe Zimmermann and Oled)
* 22/01/2008 - Implemented ZoomFull, PaintOnCanvas and slight modifications to add TSerie pen style (by oleg)
* 27/09/2007 - Bugfixes and partially implemented multibar in TBarSeries
* 29/08/2007 - Bugfixes and implement Bug fixes SaveToBitmapFile 
                 and CopyToClipboardBitmap
* 27/08/2007 - Bugfixes and implement Inverted Axis (by Helio Rocha-Pinto)
* 17/04/2007 - Series clipping bugfixes and partially implement TSeriesPointer
* 12/03/2007 - Bugfixes and implement ShowInLegend
* 01/01/2007 - Initial Release

Copyright (C) 2006-2007 by Luis Rodrigues  <lr@neei.uevora.pt>
Copyright (C) 2005-2006 by Philippe Martinole  <philippe.martinole@teleauto.org>