TAChart: Add demo for creation of a dual-axis-chart at runtime.

git-svn-id: trunk@54329 -

.gitattributes

@@ -4301,6 +4301,10 @@ components/tachart/demo/runtime/chartstyles/project1.lpr svneol=native#text/plai
 components/tachart/demo/runtime/chartstyles/readme.txt svneol=native#text/plain
 components/tachart/demo/runtime/chartstyles/unit1.lfm svneol=native#text/plain
 components/tachart/demo/runtime/chartstyles/unit1.pas svneol=native#text/plain
+components/tachart/demo/runtime/dualaxes/project1.lpi svneol=native#text/plain
+components/tachart/demo/runtime/dualaxes/project1.lpr svneol=native#text/plain
+components/tachart/demo/runtime/dualaxes/unit1.lfm svneol=native#text/plain
+components/tachart/demo/runtime/dualaxes/unit1.pas svneol=native#text/plain
 components/tachart/demo/runtime/plotunit/main.lfm svneol=native#text/plain
 components/tachart/demo/runtime/plotunit/main.pas svneol=native#text/plain
 components/tachart/demo/runtime/plotunit/plotdemo.lpi svneol=native#text/plain

components/tachart/demo/runtime/dualaxes/project1.lpi

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="10"/>
+    <PathDelim Value="\"/>
+    <General>
+      <SessionStorage Value="InProjectDir"/>
+      <MainUnit Value="0"/>
+      <Title Value="project1"/>
+      <ResourceType Value="res"/>
+      <UseXPManifest Value="True"/>
+      <Icon Value="0"/>
+    </General>
+    <VersionInfo>
+      <StringTable ProductVersion=""/>
+    </VersionInfo>
+    <BuildModes Count="1">
+      <Item1 Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+    </PublishOptions>
+    <RunParams>
+      <local>
+        <FormatVersion Value="1"/>
+      </local>
+    </RunParams>
+    <RequiredPackages Count="2">
+      <Item1>
+        <PackageName Value="TAChartLazarusPkg"/>
+      </Item1>
+      <Item2>
+        <PackageName Value="LCL"/>
+      </Item2>
+    </RequiredPackages>
+    <Units Count="2">
+      <Unit0>
+        <Filename Value="project1.lpr"/>
+        <IsPartOfProject Value="True"/>
+      </Unit0>
+      <Unit1>
+        <Filename Value="unit1.pas"/>
+        <IsPartOfProject Value="True"/>
+        <ComponentName Value="Form1"/>
+        <ResourceBaseClass Value="Form"/>
+        <UnitName Value="Unit1"/>
+      </Unit1>
+    </Units>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="11"/>
+    <PathDelim Value="\"/>
+    <Target>
+      <Filename Value="project1"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+    <Linking>
+      <Debugging>
+        <UseExternalDbgSyms Value="True"/>
+      </Debugging>
+      <Options>
+        <Win32>
+          <GraphicApplication Value="True"/>
+        </Win32>
+      </Options>
+    </Linking>
+  </CompilerOptions>
+  <Debugging>
+    <Exceptions Count="3">
+      <Item1>
+        <Name Value="EAbort"/>
+      </Item1>
+      <Item2>
+        <Name Value="ECodetoolError"/>
+      </Item2>
+      <Item3>
+        <Name Value="EFOpenError"/>
+      </Item3>
+    </Exceptions>
+  </Debugging>
+</CONFIG>

components/tachart/demo/runtime/dualaxes/project1.lpr

@@ -0,0 +1,21 @@
+program project1;
+
+{$mode objfpc}{$H+}
+
+uses
+  {$IFDEF UNIX}{$IFDEF UseCThreads}
+  cthreads,
+  {$ENDIF}{$ENDIF}
+  Interfaces, // this includes the LCL widgetset
+  Forms, Unit1, tachartlazaruspkg
+  { you can add units after this };
+
+{$R *.res}
+
+begin
+  RequireDerivedFormResource := True;
+  Application.Initialize;
+  Application.CreateForm(TForm1, Form1);
+  Application.Run;
+end.
+

components/tachart/demo/runtime/dualaxes/unit1.lfm

@@ -0,0 +1,35 @@
+object Form1: TForm1
+  Left = 280
+  Height = 331
+  Top = 130
+  Width = 505
+  Caption = 'Form1'
+  ClientHeight = 331
+  ClientWidth = 505
+  OnCreate = FormCreate
+  LCLVersion = '1.7'
+  object Chart1: TChart
+    Left = 0
+    Height = 331
+    Top = 0
+    Width = 505
+    AxisList = <    
+      item
+        Minors = <>
+        Title.LabelFont.Orientation = 900
+      end    
+      item
+        Alignment = calBottom
+        Minors = <>
+      end>
+    BackColor = clWhite
+    Foot.Brush.Color = clBtnFace
+    Foot.Font.Color = clBlue
+    Title.Brush.Color = clBtnFace
+    Title.Font.Color = clBlue
+    Title.Text.Strings = (
+      'TAChart'
+    )
+    Align = alClient
+  end
+end

components/tachart/demo/runtime/dualaxes/unit1.pas

@@ -0,0 +1,141 @@
+unit Unit1;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, FileUtil, TAGraph, Forms,
+  Controls, Graphics, Dialogs;
+
+type
+
+  { TForm1 }
+
+  TForm1 = class(TForm)
+    Chart1: TChart;
+    procedure FormCreate(Sender: TObject);
+  private
+
+  public
+
+  end;
+
+var
+  Form1: TForm1;
+
+implementation
+
+{$R *.lfm}
+
+uses
+  TAChartAxis, TAChartAxisUtils, TALegend, TATransformations, TASeries;
+
+{ TForm1 }
+
+procedure TForm1.FormCreate(Sender: TObject);
+const
+  LEFT_COLOR = clRed;
+  RIGHT_COLOR = clBlue;
+var
+  leftAxis, rightAxis: TChartAxis;
+  t: TAutoscaleAxisTransform;
+  leftSeries, rightSeries: TLineSeries;
+  i: Integer;
+  axis: TChartAxis;
+begin
+  { *** Left axis *** }
+
+  // It is already created, but we set some properties
+  leftAxis := Chart1.LeftAxis;
+  leftAxis.Marks.LabelFont.Color := LEFT_COLOR;
+  leftAxis.Title.LabelFont.Color := LEFT_COLOR;
+  leftAxis.Title.Caption := 'Left axis';
+  leftAxis.Title.Visible := true;
+  leftAxis.AxisPen.Color := LEFT_COLOR;
+  leftAxis.AxisPen.Visible := true;
+  leftAxis.TickColor := LEFT_COLOR;
+
+  // Draw marks and axis title at the data part of the axis
+  leftAxis.Marks.AtDataOnly := true;
+  leftAxis.AtDataOnly := true;
+  leftAxis.Title.PositionOnMarks := true;
+
+  // AxisTransformation for left axis
+  Chart1.LeftAxis.Transformations := TChartAxisTransformations.Create(self);
+  t := TAutoscaleAxisTransform.Create(Chart1.LeftAxis.Transformations);
+  t.Transformations := Chart1.LeftAxis.Transformations;
+  t.MinValue := 0;
+  t.MaxValue := 0.5;
+
+  // Series for left axis
+  leftSeries := TLineSeries.Create(Chart1);
+  leftSeries.SeriesColor := LEFT_COLOR;
+  leftSeries.Title := 'red (left)';
+  leftSeries.AxisIndexY := Chart1.LeftAxis.Index;
+  for i:=0 to 10 do
+    leftSeries.AddXY(i, random);
+  Chart1.AddSeries(leftSeries);
+
+
+  { *** Right axis *** }
+
+  rightAxis := Chart1.AxisList.Add;
+  rightAxis.Alignment := calRight;
+  rightAxis.Title.Caption  := 'Right axis';
+  rightAxis.Title.Visible := true;
+  rightAxis.Marks.LabelFont.Color := RIGHT_COLOR;
+  rightAxis.Title.LabelFont.Color := RIGHT_COLOR;
+  rightAxis.Title.LabelFont.Orientation := -900;  // in 1/10 degrees
+  rightAxis.AxisPen.Color := RIGHT_COLOR;
+  rightAxis.AxisPen.Visible := true;
+  rightAxis.TickColor := RIGHT_COLOR;
+
+  // Draw marks and axis title at the data part of the axis
+  rightAxis.Marks.AtDataOnly := true;
+  rightAxis.AtDataOnly := true;
+  rightAxis.Title.PositionOnMarks := true;
+
+  // Axis transformation for right axis
+  rightAxis.Transformations := TChartAxisTransformations.Create(self);
+  t := TAutoscaleAxisTransform.Create(rightAxis.Transformations);
+  t.MinValue := 0.5;
+  t.MaxValue := 1.0;
+  t.Transformations := rightAxis.Transformations;
+
+  // Series for right axis
+  rightSeries := TLineSeries.Create(Chart1);
+  rightSeries.SeriesColor := RIGHT_COLOR;
+  rightSeries.Title := 'blue (right)';
+  rightSeries.AxisIndexY := rightAxis.Index;
+  for i:=5 to 20 do
+    rightSeries.AddXY(i, random*10);
+  Chart1.AddSeries(rightSeries);
+
+  // Second series for right axis
+  rightSeries := TLineSeries.Create(Chart1);
+  rightSeries.SeriesColor := RIGHT_COLOR;
+  rightSeries.LinePen.Style := psDot;
+  rightSeries.Title := 'blue dotted (right)';
+  rightSeries.AxisIndexY := rightAxis.Index;
+  for i:=3 to 15 do
+    rightSeries.AddXY(i, random*12 + 5);
+  Chart1.AddSeries(rightSeries);
+
+
+  { *** Misc *** }
+
+  // Show legend
+  Chart1.Legend.Visible := true;
+  Chart1.Legend.Alignment := laBottomCenter;
+  Chart1.Legend.ColumnCount := 3;
+
+  // Axis grids
+  for axis in Chart1.AxisList do begin
+    axis.Grid.Style := psSolid;
+    axis.Grid.Color := $E0E0E0;
+  end;
+end;
+
+end.
+