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unit Main;
{$mode objfpc}{$H+}
interface
uses
ComCtrls, ExtCtrls, Forms, Spin, StdCtrls, TACustomSource, TAFuncSeries,
TAGraph, TAIntervalSources, TASeries, TASources, TAStyles, TATools,
TATransformations, TAChartAxis, Classes;
type
{ TForm1 }
TForm1 = class(TForm)
catT: TChartAxisTransformations;
catTAutoAutoScaleAxisTransform1: TAutoScaleAxisTransform;
catTAutoScaleAxisTransform1: TAutoScaleAxisTransform;
catTFahrToCel: TLinearAxisTransform;
cbStaticY: TCheckBox;
cbUnitsY: TComboBox;
ChartPosition: TChart;
ChartIntervals: TChart;
ChartAxisGroup: TChart;
ChartCustomMarks: TChart;
ChartCustomMarksBarSeries1: TBarSeries;
ChartDateTime: TChart;
ChartDateTimeLineSeries1: TLineSeries;
ChartPositionFuncSeries1: TFuncSeries;
ChartSubmarks: TChart;
ChartSubmarksLineSeries1: TLineSeries;
ChartToolset1ZoomIn: TZoomClickTool;
ChartToolset1ZoomOut: TZoomClickTool;
ChartToolsetDateTime: TChartToolset;
cbStaticX: TCheckBox;
cbUnitsX: TComboBox;
CbSuppressPrevUnit: TCheckBox;
CbAlternateFormat: TCheckBox;
csStripes: TChartStyles;
DateTimeIntervalChartSource1: TDateTimeIntervalChartSource;
gbPositionX: TGroupBox;
gbPositionY: TGroupBox;
Label1: TLabel;
lblPositionX: TLabel;
lblUnitsX: TLabel;
lblPositionY: TLabel;
lblUnitsY: TLabel;
lcsMarks: TListChartSource;
PageControl1: TPageControl;
Panel1: TPanel;
pnlPosition: TPanel;
rbPositionBottom: TRadioButton;
rbPositionLeft: TRadioButton;
rbPositionTop: TRadioButton;
rbPositionRight: TRadioButton;
rcsDates: TRandomChartSource;
seXPosition: TSpinEdit;
seYPosition: TSpinEdit;
tsPosition: TTabSheet;
tsIntervals: TTabSheet;
tsAxisGroup: TTabSheet;
tsCustomMarks: TTabSheet;
tsDateTime: TTabSheet;
tsSubmarks: TTabSheet;
udcsGraph: TUserDefinedChartSource;
udcsMain: TUserDefinedChartSource;
udcsSub: TUserDefinedChartSource;
procedure cbStaticXChange(Sender: TObject);
procedure cbStaticYChange(Sender: TObject);
procedure CbSuppressPrevUnitChange(Sender: TObject);
procedure cbUnitsXChange(Sender: TObject);
procedure cbUnitsYChange(Sender: TObject);
procedure ChartCustomMarksAxisList1MarkToText(var AText: String; AMark: Double);
procedure ChartPositionFuncSeries1Calculate(const AX: Double; out
AY: Double);
procedure CbAlternateFormatChange(Sender: TObject);
procedure DateTimeIntervalChartSource1DateTimeStepChange(Sender: TObject;
ASteps: TDateTimeStep);
procedure FormCreate(Sender: TObject);
procedure rbPositionBottomChange(Sender: TObject);
procedure rbPositionLeftChange(Sender: TObject);
procedure seXPositionChange(Sender: TObject);
procedure seYPositionChange(Sender: TObject);
procedure udcsGraphGetChartDataItem(ASource: TUserDefinedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
procedure udcsMainGetChartDataItem(ASource: TUserDefinedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
procedure udcsSubGetChartDataItem(ASource: TUserDefinedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
end;
var
Form1: TForm1;
implementation
uses
SysUtils, TypInfo, TAChartAxisUtils, TAChartUtils;
{$R *.lfm}
{ TForm1 }
procedure TForm1.cbStaticXChange(Sender: TObject);
begin
ChartPosition.AxisList[3].Visible := cbStaticX.Checked;
end;
procedure TForm1.cbStaticYChange(Sender: TObject);
begin
ChartPosition.AxisList[2].Visible := cbStaticY.Checked;
end;
procedure TForm1.CbSuppressPrevUnitChange(Sender: TObject);
begin
DateTimeIntervalChartSource1.SuppressPrevUnit := CbSuppressPrevUnit.Checked;
end;
procedure TForm1.cbUnitsXChange(Sender: TObject);
begin
ChartPosition.AxisList[1].PositionUnits := TChartUnits(cbUnitsX.ItemIndex);
end;
procedure TForm1.cbUnitsYChange(Sender: TObject);
begin
ChartPosition.AxisList[0].PositionUnits := TChartUnits(cbUnitsY.ItemIndex);
end;
procedure TForm1.ChartCustomMarksAxisList1MarkToText(var AText: String; AMark: Double);
begin
if AMark = 3 then
AText := '*' + AText + '*';
end;
procedure TForm1.ChartPositionFuncSeries1Calculate(
const AX: Double; out AY: Double);
begin
AY := Sin(AX / 30) * 10 + Cos(AX / 10) * 20;
end;
procedure TForm1.DateTimeIntervalChartSource1DateTimeStepChange(
Sender: TObject; ASteps: TDateTimeStep);
begin
Label1.Caption := GetEnumName(TypeInfo(TDateTimeStep), ord(ASteps));
end;
procedure TForm1.CbAlternateFormatChange(Sender: TObject);
begin
with DateTimeIntervalChartSource1.DateTimeStepFormat do
if CbAlternateFormat.Checked then begin
WeekFormat := 'dd"."mmm"."';
DayFormat := 'dd"."mm"."';
HourFormat := 'dd". "hh:nn';
SecondFormat := 'nn"."ss';
MillisecondFormat := 'ss"."zzz';
end else begin
WeekFormat := DEFAULT_WEEK_FORMAT;
DayFormat := DEFAULT_DAY_FORMAT;
HourFormat := DEFAULT_HOUR_FORMAT;
SecondFormat := DEFAULT_SECOND_FORMAT;
MillisecondFormat := DEFAULT_MILLISECOND_FORMAT;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
const
COLORS: array [1..5] of Integer =
($0000A0, $002080, $004060, $006040, $008020);
var
i, j: Integer;
ls: TLineSeries;
tr: TChartAxisTransformations;
begin
for i := 1 to 5 do begin
ls := TLineSeries.Create(Self);
ChartAxisGroup.AddSeries(ls);
ls.SeriesColor := COLORS[i];
ls.LinePen.Width := 2;
for j := 1 to 20 do
ls.AddXY(j, Random * 8);
tr := TChartAxisTransformations.Create(Self);
with TAutoScaleAxisTransform.Create(Self) do begin
Transformations := tr;
MinValue := i + 0.2;
MaxValue := i + 0.8;
end;
with TChartAxis.Create(ChartAxisGroup.AxisList) do begin
Transformations := tr;
Marks.AtDataOnly := true;
Marks.Range.UseMin := true;
Marks.Range.UseMax := true;
Marks.Range.Min := 1;
Marks.Range.Max := 9;
Marks.LabelFont.Orientation := 900;
Marks.LabelFont.Color := COLORS[i];
with Marks.DefaultSource.Params do begin
MinLength := 5;
MaxLength := 20;
Options := Options + [aipUseCount];
end;
TickColor := COLORS[i];
Group := 1;
end;
ls.AxisIndexY := ChartAxisGroup.AxisList.Count - 1;
end;
with rcsDates do begin
XMin := Now - 5 * 365;
XMax := Now + 5 * 365;
PointsNumber := 10 * 365 * 24;
end;
end;
procedure TForm1.rbPositionBottomChange(Sender: TObject);
begin
with ChartPosition.AxisList[1] do
if rbPositionBottom.Checked then
Alignment := calBottom
else
Alignment := calTop;
end;
procedure TForm1.rbPositionLeftChange(Sender: TObject);
begin
with ChartPosition.AxisList[0] do
if rbPositionLeft.Checked then
Alignment := calLeft
else
Alignment := calRight;
end;
procedure TForm1.seXPositionChange(Sender: TObject);
begin
ChartPosition.AxisList[1].Position := seXPosition.Value;
end;
procedure TForm1.seYPositionChange(Sender: TObject);
begin
ChartPosition.AxisList[0].Position := seYPosition.Value;
end;
procedure TForm1.udcsGraphGetChartDataItem(ASource: TUserDefinedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
begin
Unused(ASource);
AItem.X := (AIndex - 50) * 0.1;
AItem.Y := Sin(AItem.X * 3) + AItem.X / 10;
end;
procedure TForm1.udcsMainGetChartDataItem(
ASource: TUserDefinedChartSource; AIndex: Integer; var AItem: TChartDataItem);
begin
Unused(ASource);
AItem.X := AIndex - 5;
AItem.Y := AItem.X;
end;
procedure TForm1.udcsSubGetChartDataItem(
ASource: TUserDefinedChartSource; AIndex: Integer; var AItem: TChartDataItem);
begin
Unused(ASource);
AItem.X := (AIndex - 25) * 0.2;
AItem.Y := AItem.X;
end;
end.
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