Delphi 7.0x freeware
Charts

[ paintgrd.zip ] [ 32,181 bytes ] [ Freeware ] [ No Source ]
[ D3 | D4 | D5 | D6 | D7 ]
Paint Grid Components.
The package includes two components: PaintBoxGrid and BitmapGrid
for construction of dynamic grids by auto scaling and decent numbering for drawing 2D charts on it.
Numbering happens by ranges of 1eX, 2eX and 5eX from zero.
Also there are Events for Labels modification possibilities.
 [more]
THE SOURCE CODE IS AVAILABLE ON HOME PAGE!
Added: 21-10-2002/17-02-2003   |  Version: 1.0   |  Downloads: 2560/2511/20
Author:Qarsoft   [Homepage]   [DSP files]

[ qsgraph.zip ] [ 387,358 bytes ] [ Freeware ] [ With Source ]
[ D6 | D7 ]
TQSpiderGraph : Spider Graph (aka "radar graph") freeware charting component ;

This component displays spider graphs (aka "radar graph") with as many axes and lines as you want (keep it readible...). It has numerous properties which apply more particularly to :

  • . the axes ( number, colors, individual max and min)
  • . its background (transparency, single color, oriented gradient)
  • . the number of lines, their color, caption thickness,aso
  • . It tracks mouse moves. Displays lines values near the pointer and/or raises events when the mouse enters or exits a line

    Spider graphs (aka "radar graphs") are especially usefull to allow your user to easy visualy compare the values of different sets of datas. TQSpiderGraph provides means to easily achieve such a visual comparison :

    Its usefull line highlighting functions allow you to highlight :

  • The line(s) with the widest or narrowest area ;
  • The one(s) with the highest (or lowest) value(s) on such or such axe ;
  • or simply the one of your choice, using its index.

    Highlighting can be made using one or a combinaison of the following "higlight modes" :

  • Change higlighted line(s) color,
  • Change higlighted line(s) thickness;
  • Show the points of this line only ;
  • And why not, do temporarily "flash" this line

    TQSpiderGraph contains much more features. An example is it's ability to optionally auto define the limits of each axe, depending on the values you send to it.

    It has been developped and tested under D6PE, and comes with full source ;

    The zip file contains the component source code, a compiled demo and its source, together with an "Howto" file, in html format. Some screenshots can be seen at

    http://mapage.noos.fr/qnno/pages/TQSpiderGraph-screenshots.html

    (Please notice that gradient backgrounds are drawn using Windows "GradientFill" API, which requires Msimg32.dll to be in the "C:\Windows\System" folder.)


    Added: 19-07-2004/26-07-2004   |  Version: 1.0   |  Downloads: 1103/1103/21
    Author:Olivier Touzot   [Homepage]   [DSP files]
  • [ tchartundoredo102.zip ] [ 20,414 bytes ] [ Freeware ] [ With Source ]
    [ D5 | D6 | D7 ]
    Helper component for TeeChartPro7 VCL from Steema software. With this component and bit of code you can realize limited or unlimited undo / redo function with TChart. Automatically traced TChart events: Zoom, Unzoom, Scroll. Other Chart changes traced by code. With sample application. Free license (GNU GPL 2). Tested with Delphi5 Standard and Delphi7 Personal. Version 1.02 (30.12.2004).
    Added: 10-01-2005   |  Version: 1.02   |  Downloads: 603/603/13
    Author:Ivo Ungermann   [Homepage]   [DSP files]

    [ trend.zip ] [ 474,242 bytes ] [ Freeware ] [ With Source ]
    [ D5 | D6 | D7 ]
    The Trend component is a graphical component designed to show an animated plot of parameter values. As values are added old values scroll off the graph to the left. Added properties for version 2.00: About, BackGroundColor, GridStyle, GridColor, GridXstep, GridYstep, AutoScale. Some more error checking and additional fixing. Original component by Mark Dodson. Source and demo included. v2.01 split packages for Delphi 6 into runtime and designtime. Should be compatible with Delphi 7 too.
    Added: 13-05-2002/21-07-2003   |  Version: 2.01   |  Downloads: 1741/1586/1
    Author:Dr. Juergen Kehrel   [DSP files]

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