Title: Radar Chart
Question: How draw radar chart in delphi?
Answer:
This Component Draw radar chart for 1000 Items in 1000 dimension . the attach file is one demo .this demo show all ability of this component this demo code is :
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Radar, StdCtrls, ExtCtrls, Buttons, AdvLabel, QuickRpt, QRCtrls,
Spin, Menus;
type
TRadarDemoForm = class(TForm)
ColorDialog: TColorDialog;
MainMenu1: TMainMenu;
Panel6: TPanel;
Panel8: TPanel;
Panel1: TPanel;
Panel2: TPanel;
Panel7: TPanel;
Panel3: TPanel;
Label_AxisDivision: TLabel;
Label_AxisLineWidth: TLabel;
CheckBox_ShowAxisText: TCheckBox;
BitBtn_AxisTextFont: TBitBtn;
BitBtn_AxisLineColor: TBitBtn;
SpinEdit_AxisDivision: TSpinEdit;
SpinEdit_AxisLineWidth: TSpinEdit;
CheckBox_ShowAxisLine: TCheckBox;
Panel4: TPanel;
Panel5: TPanel;
Panel9: TPanel;
Label4: TLabel;
About1: TMenuItem;
About2: TMenuItem;
Label6: TLabel;
OtherProduct1: TMenuItem;
FontDialog: TFontDialog;
BitBtn1: TBitBtn;
Label2: TLabel;
SpinEdit_AxisItemQuantity: TSpinEdit;
Label7: TLabel;
CheckBox_ShowAxisGridLine: TCheckBox;
Panel10: TPanel;
Radar: TRadar;
CheckBox_ShowRadarBorder: TCheckBox;
SpinEdit_RadarBorderLineWidth: TSpinEdit;
Label_RadarLineWidth: TLabel;
BitBtn_RadarBorderColor: TBitBtn;
BitBtn_RadarBackGround: TBitBtn;
BitBtn_RadarItems: TBitBtn;
BitBtn_RadarZoomIn: TBitBtn;
BitBtn_RadarZoomOut: TBitBtn;
procedure About2Click(Sender: TObject);
procedure ExitDemo1Click(Sender: TObject);
procedure OtherProduct1Click(Sender: TObject);
procedure BitBtn_RadarItemsClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure BitBtn_AxisLineColorClick(Sender: TObject);
procedure BitBtn_AxisTextFontClick(Sender: TObject);
procedure BitBtn_RadarBorderColorClick(Sender: TObject);
procedure BitBtn_RadarBackGroundClick(Sender: TObject);
procedure BitBtn_RadarZoomInClick(Sender: TObject);
procedure BitBtn_RadarZoomOutClick(Sender: TObject);
procedure CheckBox_ShowAxisLineClick(Sender: TObject);
procedure SetObjectsEnabled();
procedure CheckBox_ShowAxisTextClick(Sender: TObject);
procedure CheckBox_ShowRadarBorderClick(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
Procedure RadarDraw();
procedure SpinEdit_AxisLineWidthChange(Sender: TObject);
procedure SpinEdit_AxisDivisionChange(Sender: TObject);
procedure SpinEdit_RadarBorderLineWidthChange(Sender: TObject);
procedure CheckBox_ShowAxisGridLineClick(Sender: TObject);
procedure SpinEdit_AxisItemQuantityChange(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
RadarDemoForm: TRadarDemoForm;
AxisItemsName : array [1..40] of string=(
'Item 1','Item 2','Item 3','Item 4',
'Item 5','Item 6','Item 7','Item 8',
'Item 9','Item 10','Item 11','Item 12',
'Item 13','Item 14','Item 15','Item 16',
'Item 17','Item 18','Item 19','Item 20',
'Item 21','Item 22','Item 23','Item 24',
'Item 25','Item 26','Item 27','Item 28',
'Item 29','Item 30','Item 31','Item 32',
'Item 33','Item 34','Item 35','Item 36',
'Item 37','Item 38','Item 39','Item 40'
);
RadarItemsName : array [1..10] of string=
('Radar Item 1','Radar Item 2','Radar Item 3','Radar Item 4','Radar Item 5'
,'Radar Item 6','Radar Item 7','Radar Item 8','Radar Item 9','Radar Item 10');
RadarItemsCount : word=2;
AxisItemsCount : word=5;
Value : array [1..10,1..40] of TValueLimit=(
(1,3,2,5,3,4,9,2,7,3,5,2,5,7,4,8,5,2,6,3,2,7,2,4,2,4,5,7,8,0,4,1,2,2,4,6,3,2,4,6),
(2,1,5,6,2,4,5,2,1,2,4,1,2,5,4,2,1,3,2,4,8,1,3,2,2,5,7,4,7,0,9,2,4,5,6,8,3,8,3,2),
(2,2,6,3,2,7,1,2,7,6,4,6,8,2,3,2,7,0,9,2,4,3,6,4,3,8,3,2,2,7,9,2,7,3,1,2,5,7,4,8),
(2,1,6,3,2,7,3,2,7,3,1,2,5,4,4,8,5,2,4,1,0,2,5,6,4,6,4,2,3,5,4,1,8,4,3,2,5,6,4,9),
(2,3,5,4,5,8,4,3,5,5,6,4,5,4,5,6,8,3,8,3,2,7,3,7,9,2,4,6,8,4,3,2,5,6,4,9,4,5,6,8),
(3,2,4,9,0,4,9,2,9,0,5,2,5,7,4,8,5,8,6,5,4,7,6,4,2,4,5,7,8,0,6,1,2,2,4,6,3,5,4,2),
(4,4,5,8,4,4,5,2,2,7,4,1,2,5,6,7,8,3,2,4,8,1,7,8,2,5,7,4,7,8,7,2,4,5,7,8,3,6,3,3),
(6,2,6,7,7,7,1,2,7,3,4,6,6,5,3,2,2,0,9,2,4,3,6,4,9,7,3,2,2,7,9,6,7,3,6,5,5,6,4,4),
(7,3,7,3,8,7,2,2,7,3,0,2,2,4,4,8,5,2,2,1,0,2,5,6,4,6,5,2,6,5,4,5,8,4,6,4,4,5,4,9),
(8,5,8,2,5,8,3,3,5,5,6,4,5,4,5,6,8,3,8,3,2,7,3,7,9,3,4,5,8,4,3,2,7,6,7,9,4,5,6,2)
);
ValueColor : Array [1..10] of TColor=(clRed,clNavy,clBlue,clMaroon,clGreen,
clBlack,clOlive,clCream,clAqua,clPurple);
ValueLineWidth : Array [1..10] of TWidthLimit =(2,2,2,2,2,2,2,2,2,2);
ValueShow : Array [1..10] of boolean=(True,True,False,False,False,
False,False,False,False,False);
implementation
uses
About,OtherProduct,RadarItems;
{$R *.dfm}
{-----------------------------------------------------------}
procedure TRadarDemoForm.About2Click(Sender: TObject);
var
AboutForm : TAboutForm;
begin
AboutForm:=TAboutForm.Create(nil);
AboutForm.ShowModal;
AboutForm.Free;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.ExitDemo1Click(Sender: TObject);
begin
close;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.OtherProduct1Click(Sender: TObject);
var
OtherProductform : TOtherProductform;
begin
OtherProductform:=TOtherProductform.Create(nil);
OtherProductform.ShowModal;
OtherProductform.Free;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_RadarItemsClick(Sender: TObject);
var
RadarItemsForm : TRadarItemsForm;
i,k,j : integer;
begin
RadarItemsForm:=TRadarItemsForm.Create(nil);
k:=High(RadarItemsName);
for i:=1 to k do
begin
RadarItemsForm.ListBox_RadarItem.Items.Add(RadarItemsName[i]);
RadarItemsForm.ListBox_RadarItem.Checked[i-1]:=ValueShow[i];
for j:=1 to 40 do
TempValue[i][j]:=Value[i][j];
TempValueColor[i]:=ValueColor[i];
TempValueLineWidth[i]:=ValueLineWidth[i];
TempAxisCount:=AxisItemsCount;
end;
Radar.Clear;
RadarItemsForm.ShowModal;
RadarItemsCount:=0;
for i:=1 to k do
begin
ValueShow[i]:=RadarItemsForm.ListBox_RadarItem.Checked[i-1];
ValueColor[i]:=TempValueColor[i];
ValueLineWidth[i]:=TempValueLineWidth[i];
if ValueShow[i] then
begin
RadarItemsCount:=RadarItemsCount+1;
Radar.AddItem(AxisItemsName[i],Value[i],valuecolor[i],ValueLineWidth[i]);
end;
end;
RadarItemsForm.Free;
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.FormCreate(Sender: TObject);
var
i,k : integer;
begin
k:=RadarItemsCount;
for i:=1 to k do
Radar.AddItem(AxisItemsName[i],Value[i],valuecolor[i],ValueLineWidth[i]);
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.SetObjectsEnabled();
begin
if Radar.Zoomin=1 then
BitBtn_RadarZoomOut.Enabled:=false
else
BitBtn_RadarZoomOut.Enabled:=true;
if Radar.Zoomin=10 then
BitBtn_RadarZoomIn.Enabled:=false
else
BitBtn_RadarZoomIn.Enabled:=true;
if CheckBox_ShowAxisLine.Checked then
Radar.Axis.BorderLineShow:=True
else
Radar.Axis.BorderLineShow:=False;
if CheckBox_ShowAxisGridLine.Checked then
Radar.Axis.GridLineShow:=True
else
Radar.Axis.GridLineShow:=False;
Radar.Axis.AxisLines.LineWidth:=SpinEdit_AxisLineWidth.Value;
Radar.AxisDivision:=SpinEdit_AxisDivision.Value;
if CheckBox_ShowAxisText.Checked then
Radar.Axis.AxisText.TextShow:=True
else
Radar.Axis.AxisText.TextShow:=False;
if CheckBox_ShowRadarBorder.Checked then
Radar.Border:=True
else
Radar.Border:=False;
Radar.BorderWidth:=SpinEdit_RadarBorderLineWidth.Value;
RadarDraw();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_AxisLineColorClick(Sender: TObject);
begin
if ColorDialog.Execute then
begin
Radar.Axis.AxisLines.LineColor:=ColorDialog.Color;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_AxisTextFontClick(Sender: TObject);
begin
if FontDialog.Execute then
begin
Radar.Axis.AxisText.TextFont:=FontDialog.Font;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_RadarBorderColorClick(Sender: TObject);
begin
if ColorDialog.Execute then
begin
Radar.BorderColor:=ColorDialog.Color;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_RadarBackGroundClick(Sender: TObject);
begin
if ColorDialog.Execute then
begin
Radar.BackGroundColor:=ColorDialog.Color;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_RadarZoomInClick(Sender: TObject);
begin
if Radar.Zoomin begin
Radar.Zoomin:=Radar.Zoomin+1;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn_RadarZoomOutClick(Sender: TObject);
begin
if Radar.Zoomin1 then
begin
Radar.Zoomin:=Radar.Zoomin-1;
SetObjectsEnabled();
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.CheckBox_ShowAxisLineClick(Sender: TObject);
begin
if CheckBox_ShowAxisLine.Checked then
begin
Label_AxisLineWidth.Enabled:=true;
Label_AxisDivision.Enabled:=true;
SpinEdit_AxisDivision.Enabled:=true;
SpinEdit_AxisLineWidth.Enabled:=true;
BitBtn_AxisLineColor.Enabled:=true;
end
else
begin
Label_AxisLineWidth.Enabled:=false;
Label_AxisDivision.Enabled:=false;
SpinEdit_AxisDivision.Enabled:=false;
SpinEdit_AxisLineWidth.Enabled:=false;
BitBtn_AxisLineColor.Enabled:=false;
end;
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.CheckBox_ShowAxisTextClick(Sender: TObject);
begin
if CheckBox_ShowAxisText.Checked then
BitBtn_AxisTextFont.Enabled:=true
else
BitBtn_AxisTextFont.Enabled:=false;
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.CheckBox_ShowRadarBorderClick(Sender: TObject);
begin
if CheckBox_ShowRadarBorder.Checked then
begin
Label_RadarLineWidth.Enabled:=true;
BitBtn_RadarBorderColor.Enabled:=true;
SpinEdit_RadarBorderLineWidth.Enabled:=true;
end
else
begin
Label_RadarLineWidth.Enabled:=false;
BitBtn_RadarBorderColor.Enabled:=false;
SpinEdit_RadarBorderLineWidth.Enabled:=FALSE;
end;
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.BitBtn1Click(Sender: TObject);
begin
Close;
end;
{-----------------------------------------------------------}
Procedure TRadarDemoForm.RadarDraw();
var
i,k : integer;
begin
k:=AxisItemsCount;
Radar.Axis.Items.Clear;
for i:=1 to k do
Radar.Axis.Items.Add(AxisItemsName[i]);
k:=RadarItemsCount;
for i:=1 to k do
begin
Radar.Draw(i);
end;
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.SpinEdit_AxisLineWidthChange(Sender: TObject);
begin
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.SpinEdit_AxisDivisionChange(Sender: TObject);
begin
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.SpinEdit_RadarBorderLineWidthChange(
Sender: TObject);
begin
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.CheckBox_ShowAxisGridLineClick(Sender: TObject);
begin
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
procedure TRadarDemoForm.SpinEdit_AxisItemQuantityChange(Sender: TObject);
begin
AxisItemsCount:=SpinEdit_AxisItemQuantity.Value;
SetObjectsEnabled();
end;
{-----------------------------------------------------------}
end.