gridlines.pas

Delphi Component - Chart Fx

unit Gridlines;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, OleCtrls, ChartfxLib_TLB;

type
  TForm1 = class(TForm)
    ChartFX1: TChartFX;
    Button1: TButton;
    Button2: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
var
   i: integer;
begin

    ChartFX1.Gallery := BUBBLE;
    ChartFX1.CylSides := 20;
    ChartFX1.Volume := 100;

    // Fill with some dummy data
    ChartFX1.OpenDataEx(COD_VALUES, 2, 12);
    for i := 0 To 11 do
    begin
        ChartFX1.ValueEx[0, i] := Random(100);  // Buble position
        ChartFX1.ValueEx[1, i] := 60 + Random(40); // Bubble size
    end;
    ChartFX1.CloseData(COD_VALUES);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    // Y-Axis gridlines and formatting
    With ChartFX1.Axis[AXIS_Y] do
    begin
        Max := 100;
        Min := 0;
        STEP := 20;
        MinorStep := 10;
        Format := AF_CURRENCY;
        Grid := True;
        GridColor := RGB(128, 0, 0);
        MinorGrid := True;
        MinorGridColor := RGB(128, 128, 0);
        MinorGridStyle := CHART_DOT;
    end;

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
    // X-Axis gridlines and formatting
    With ChartFX1.Axis[AXIS_X] do
    begin
        STEP := 1;
        MinorStep := 0.5;
        Grid := True;
        GridColor := RGB(128, 0, 0);
        {Scale and labels}
        Min := StrToDate('01/07/98');  // Starting point
        Format := AF_DATE;
        Style := AS_2LEVELS;
    end;
end;

end.