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Unit1.pas
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Unit1.pas
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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Menus, StdCtrls, Buttons, ExtCtrls, Grids,Unit2,Unit4,Abaut, DBCtrls,
DB, DBTables,Registry;
type
TForm1 = class(TForm)
Label3: TLabel;
GroupBox3: TGroupBox;
Tabulation: TStringGrid;
GroupBox1: TGroupBox;
Label1: TLabel;
Label2: TLabel;
StepX: TLabeledEdit;
XminEdit: TLabeledEdit;
XmaxEdit: TLabeledEdit;
CheckBox1: TCheckBox;
CheckBox2: TCheckBox;
StepY: TLabeledEdit;
YminEdit: TLabeledEdit;
YmaxEdit: TLabeledEdit;
GroupBox2: TGroupBox;
ColorBox: TColorBox;
BitBtn2: TBitBtn;
Button1: TButton;
Pole: TImage;
Button2: TButton;
SaveDialog1: TSaveDialog;
OpenDialog1: TOpenDialog;
Button3: TButton;
BitBtn3: TBitBtn;
MainMenu1: TMainMenu;
N1: TMenuItem;
N2: TMenuItem;
N3: TMenuItem;
N4: TMenuItem;
N5: TMenuItem;
N6: TMenuItem;
N7: TMenuItem;
N8: TMenuItem;
N9: TMenuItem;
N10: TMenuItem;
N11: TMenuItem;
N12: TMenuItem;
Table1: TTable;
ComboBox1: TComboBox;
InputPole: TEdit;
DataSource1: TDataSource;
Query1: TQuery;
PopupMenu1: TPopupMenu;
N13: TMenuItem;
procedure Button1Click(Sender: TObject);
procedure BitBtn2Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
procedure BitBtn3Click(Sender: TObject);
procedure N12Click(Sender: TObject);
procedure N11Click(Sender: TObject);
procedure N2Click(Sender: TObject);
procedure N5Click(Sender: TObject);
procedure N8Click(Sender: TObject);
procedure N9Click(Sender: TObject);
procedure N3Click(Sender: TObject);
procedure InputPoleChange(Sender: TObject);
procedure ComboBox1Click(Sender: TObject);
procedure N4Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Query1BeforeOpen(DataSet: TDataSet);
procedure N13Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
InstallPath:String;
k:SmallInt;
L:Boolean;
ParamPath:String;
flag:Boolean;
SaveFlag:Boolean;
Form1: TForm1;
//Âõîäíûå ïàðàìåòðû
Xmin,Xmax,Ymin,Ymax,hx,hy:Currency;
OperandStack:array [1..50] of Real;
Stack:array [1..50] of String[4];
Top:Byte;
Mas:array [1..50] of String;
EndMas:Byte;
Error:Integer;
I,J:byte;
Xt,Yt:Word;
implementation
//uses Unit1;
{$R *.dfm}
{$J+}
{$E-}
//***************Òèï ôàéëîâîé çàïèñè***********************
type
FRec=Record
Func:ShortString;
MinX,MinY,MaxX,MaxY,StepX,StepY:ShortString;
Picture:array [0..600,0..600] of TColor;
Tab:array [0..1,0 .. 100] of ShortString;
ColorIndex:Integer;
verUp:Byte;
verDown:Byte;
verRevision:Byte;
End;
var
SaveFilePath:ANSIString; //Ïóòü ñîõðàíåíèÿ â ôàéë
procedure SaveAS; forward;
procedure Open; forward;
//***********Âû÷èñëåíèå çíà÷åíèÿ ôóíêöèè*******************
function sgn(X:Currency):Currency;
Begin
If X=0.0 Then Result:=0.0 Else If X>0 Then Result:=1.0 Else Result:=-1.0;
End;
Function DelSpace(Str:String):String;
var I:Byte;
Begin
I:=1;
While I<Length(Str)+1 Do
Begin
If Str[I]=' ' Then Delete(Str,I,1) Else
Inc(I);
End;
Result:=Str;
End;
Function SearchErrors():Boolean;
Label E;
var
Txt:String;
BUF:String[3];
Begin
{$B-}
I:=1;
TOP:=0;
//Ââîä Txt
Txt:=Form1.InputPole.Text;
//Ïåðåâîä Txt â âåðõíèé ðåãèñòð
Txt:=UpperCase(DelSpace(Txt));
While I<=Length(Txt) Do
Begin
If (POS(Txt[I], '+*/-')<>0) Then
Begin
If ((I=1) or (POS(Txt[I-1],'+-*/,(')<>0)) and not ((Txt[I]='-') And ((Txt[I-1]='(') or (I=1)) ) Then
Begin
MessageDlg('Íåäîïóñòèìûé ïåðâûé îïåðàíä',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
End;
If (I=Length(Txt)) or (POS(Txt[I+1],'+-*/,)')<>0) Then
Begin
MessageDlg('Íåäîïóñòèìûé âòîðîé îïåðàíä',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
End;
End
Else
If Pos(Txt[I],'(1234567890,-')<>0 Then
Else
Begin
BUF:=Copy(Txt,I,3);
If (BUF='SIN')
or (BUF='COS')
or (BUF='TAN')
or (BUF='ATN')
or (BUF='LOG')
or (BUF='EXP')
or (BUF='ABS')
or (BUF='SQR')
Then
Begin
Inc(I,2);
If (Txt[I+1]<>'(') Then
Begin
MessageDlg('Îòñóòñòâóåò "(" ïîñëå èìåíè ôóíêöèè',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=3;
Result:=true;
exit;
End;
If (POS(Txt[I+2],'+*/)')<>0) Then
Begin
MessageDlg('Íåäîïóñòèìûé àðãóìåíò ôóíêöèè',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=3;
Result:=true;
exit;
End;
If (POS(Txt[I-3],'+*/)')=0) and (I>3) Then
begin
L:=pos(copy(Txt,I-6,3),'ABSSINCOSTANATNLOGEXPSQR')=0;
If L Then
Begin
MessageDlg('Îòñóòñòâóåò çíàê îïåðàöèè',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I-3;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
End;
end
end
Else
If (Pos(Txt[I],'X')<>0) Then
Begin
If (POS(Txt[I-1],')1234567890')<>0) or (POS(Txt[I+1],'(1234567890')<>0) Then
Begin
MessageDlg('Íåâåðíàÿ îïåðàöèÿ',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
end;
End
Else
IF Txt[I]='(' Then
If POS(Txt[I-1],')1234567890X')<>0 Then
Begin
MessageDlg('Íåâåðíîå ðàñïîëîæåíèå: (',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
end
Else
IF Txt[I]=')' Then
If POS(Txt[I+1],'(1234567890X')<>0 Then
Begin
MessageDlg('Íåâåðíîå ðàñïîëîæåíèå: ) èëè îòñóòñòâóåò îïåðàöèÿ',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
end
Else
IF Txt[I]='(' Then
Begin
Inc(Top);
Stack[TOP]:=Txt[I];
End
Else
If Txt[I]=')' Then
If Stack[TOP]='(' Then
Begin
DEC(TOP);
End
Else
Begin
MessageDlg('Îøèáêà âëîæåííîñòè: îòñóòñòâóåò (',mtError,[mbOK],5);
Result:=true;
exit;
End
Else
Else
Begin
MessageDlg('Íåäîïóñòèìûé ñèìâîë â âûðàæåíèå',mtError,[mbOK],5);
Form1.InputPole.SelStart:=I;
Form1.InputPole.SelLength:=1;
Result:=true;
exit;
end;
end;
Inc(I);
End;
If Stack[TOP]='(' Then
Begin
MessageDlg('Îøèáêà âëîæåííîñòè: îòñóòñòâóåò )',mtError,[mbOK],0);
Result:=true;
End;
End;
procedure Translation();
var
Operand:String;
Txt:String;
BUF:String;
function Prioretet(Op:String):Byte;
Begin
If Op='(' Then Prioretet:=1;
If (Op='+') or (Op='-') Then Prioretet:=2;
If (Op= '*') or (Op= '/') Then Prioretet:=3;
If (Op='$') Then Prioretet:=4;
End;
Begin
Txt:=Form1.InputPole.Text;
For I:=1 To 50 Do
Begin
OperandStack[I]:=0;
Stack[I]:='';
Mas[I]:='';
End;
I:=1;
EndMas:=1;
Top:=0;
While I<=Length(Txt)+1 Do
Begin
If POS(Txt[I],'0123456789,')<>0 Then
Begin
Operand:=Operand+Txt[I];
{Videlenie chisla iz stroky}
End
Else
If Operand<>'' Then
Begin
Mas[EndMas]:=Operand;
Operand:='';
{Dobavlenie chisla v massiv kotoriy budet soderjat OPZ}
Inc(EndMas);
End;
Begin
If POS(Form1.InputPole.Text[I],'+-*/')<>0 Then
Begin
{Unarniy minus}
If (Txt[I]='-') And ((Txt[I-1]='(') or (I=1)) Then
Begin
inc(Top);
Stack[Top]:='$';
End
Else
If (Stack[Top]='') and (Top=0) Then {Esly stek pustoy}
Begin
{Zanosim znak operacii v stek}
Inc(Top);
Stack[Top]:=Txt[I];
End
Else {Esly stek ne pustoy}
If Prioretet(Stack[Top])<Prioretet(Txt[I]) Then
Begin
{Protalkivaem znak operacii v stek}
Inc(Top);
Stack[Top]:=Txt[I];
End
Else
Begin
While (Prioretet(Stack[Top])>=Prioretet(Txt[I])) AND (Stack[Top]<>'') Do
Begin
Mas[EndMas]:=Stack[Top];
Inc(EndMas);
Dec(Top);
End;
Inc(Top);
Stack[Top]:=Txt[I];
End;
End
Else
If Txt[I]='(' Then
Begin
Inc(Top);
Stack[Top]:='(';
End
Else
If Txt[I]=')' Then
Begin
While Stack[Top]<>'(' Do
Begin
Mas[EndMas]:=Stack[Top];
Inc(EndMas);
Dec(Top);
End;
Dec(Top);
End
Else
If (Txt[I]='X') or (Txt[I]='x') Then
Begin
Mas[EndMas]:='X';
Inc(EndMas);
End
Else
If Txt[I]=' ' Then Else
Begin
BUF:=UpperCase(Copy(Txt,I,3));
INC(TOP);
INC(I,2);
If (BUF = 'SIN') Then Stack[Top]:='S' Else
If (BUF = 'COS') Then Stack[Top]:='C' Else
If (BUF = 'TAN') Then Stack[Top]:='T' Else
If (BUF = 'ATN') Then Stack[Top]:='A' Else
If (BUF = 'LOG') Then Stack[Top]:='L' Else
If (BUF = 'EXP') Then Stack[Top]:='E' Else
If (BUF = 'SQR') Then Stack[Top]:='Q' Else
If (BUF = 'ABS') Then Stack[Top]:='B'
Else
Begin
DEC(TOP);
DEC(I,2);
End;
End;
End;
Inc(I);
End;
While (Stack[Top]<>'') Do
Begin
Mas[EndMas]:=Stack[Top];
Inc(EndMas);
Dec(Top);
End;
End;
//***********************************************************
function Value( X:Currency; var Err:Boolean ):Currency; export;
function Calc(Operand1,Operand2:Real; Operation:String):Currency;
Begin
If Operation= '+' Then Calc:=Operand1+Operand2;
If Operation= '-' Then Calc:=Operand1-Operand2;
If Operation= '*' Then Calc:=Operand1*Operand2;
If Operation= '/' Then Calc:=Operand1/Operand2;
End;
Begin
Err:=false;
I:=1;
Top:=0;
While MAS[I]<>'' DO
Begin
try
try
If Mas[I]='$' Then
OperandStack[Top]:=-OperandStack[Top]
Else
Case MAS[I][1] of
'S':OperandStack[Top]:=SIN(OperandStack[Top]);
'C':OperandStack[Top]:=COS(OperandStack[Top]);
'T':OperandStack[Top]:=SIN(OperandStack[Top])/COS(OperandStack[Top]);
'A':OperandStack[Top]:=ARCTAN(OperandStack[Top]);
'L':OperandStack[Top]:= LN(OperandStack[Top]);
'E':OperandStack[Top]:=EXP(OperandStack[Top]);
'Q':OperandStack[Top]:=SQRT(OperandStack[Top]);
'B':OperandStack[Top]:=ABS(OperandStack[Top]);
Else
If POS(Mas[I],'+-*/')<>0 Then
Begin
OperandStack[Top-1]:=Calc(OperandStack[Top-1],OperandStack[Top],Mas[I][1]);
Dec(Top);
End
Else
If Mas[I]='X' Then
Begin
Inc(Top);
OperandStack[Top]:=X;
End
Else
Begin
Inc(Top);
OperandStack[Top]:=StrToFloat(MAS[I]);
End;
End;
except
on EZeroDivide do Err:=true;
on EInvalidOp do Err:=true;
on EDivByZero do Err:=true;
end;
finally
inc(i);
end;
End;
Value:=OperandStack[1];
End;
//************************************************************
procedure ClearPole; //Î÷èñòêà ïîëÿ äëÿ ïîñòðîåíèé
var
Rec:TRect;
I,J:Cardinal;
Begin
Form1.Pole.Canvas.Brush.Color:=clWhite;
Rec.Left:=0;
Rec.Top:=0;
Rec.Right:=Form1.Pole.Width;
Rec.Bottom:=Form1.Pole.Height;
Form1.Pole.Canvas.FillRect(Rec);
End;
//Ôóíêöèÿ ïðåîáðàçîâàíèÿ ìèðîâûõ êîîðäèíàò X â ýêðàííûå
function DisplayX(X:Real):Word;
Begin
DisplayX:=Round((Form1.Pole.Width)*(ABS(X-Xmin)/(Xmax-Xmin)));//+correctX;
End;
//Ôóíêöèÿ ïðåîáðàçîâàíèÿ ìèðîâûõ êîîðäèíàò Y â ýêðàííûå
function DisplayY(Y:Real):Word;
Begin
DisplayY:=Round((Form1.Pole.Height-1)*(1-ABS((Y-Ymin)/(Ymax-Ymin)))); //+correctY;
End;
procedure DrawLines; //Ïîñòðîåíèå îñåé êîîðäèíàò
Begin
Form1.Pole.Canvas.Pen.Color:=clBlack;
//Àíàëèç X
If (Xmin=0) or ((Xmin*Xmax>0) and (Xmin>0)) Then
Begin
Xt:=1;
End
Else //Åñëè X ëåæèò â 1 è 4 êîîðäèíàòíîé ÷åòâåðòè òî îñü îðäèíàò áóäåò èìåòü
//êîîðäèíàòîé X 1 ïèêñåë ñïðàâà
If (Xmax=0) or ((Xmin*Xmax>0) and (Xmin<0)) Then
Begin
Xt:=Form1.Pole.Width-1
End
Else
Begin
Xt:=DisplayX(0);//íàîáîðîò If Xmin*Xmax>0 Then //åñëè MAX(X) è MIN(X) ëåæàò ïî îäíó ñòîðîíó îñè îðäèíàò
End;
If (Ymin=0) or ((Ymin*Ymax>0) and (Ymin>0) ) Then
Begin
Yt:=Form1.Pole.Height-1;
End
Else
If (Ymax=0) or ((Ymin*Ymax>0) and (Ymin<0) ) Then
Begin
Yt:=1;
End
Else
Begin
Yt:=DisplayY(0);
End;
Form1.Pole.Canvas.MoveTo(DisplayX(XMin),Yt);
Form1.Pole.Canvas.LineTo(DisplayX(XMax),Yt);
Form1.Pole.Canvas.MoveTo(Xt,DisplayY(Ymin));
Form1.Pole.Canvas.LineTo(Xt,DisplayY(Ymax));
End;
procedure GradX(X:Real);
var
k:ShortInt;
Begin
If (Ymin=0) or (Ymax>0) Then k:=-17 Else k:=17;
Form1.Pole.Canvas.TextWidth('5');
Form1.Pole.Canvas.MoveTo(DisplayX(X),Yt-5);
Form1.Pole.Canvas.LineTo(DisplayX(X),Yt+5);
Form1.Pole.Canvas.TextOut(DisplayX(X),Yt+k,FloatToStrF(X,ffFixed,4,1 ));
End;
procedure GradY(Y:Real);
var
K:ShortInt;
Begin
If (Xmin=0) or (Xmax>0) Then k:=20 Else k:=-22;
Form1.Pole.Canvas.TextWidth('5');
Form1.Pole.Canvas.MoveTo(Xt-5,DisplayY(Y));
Form1.Pole.Canvas.LineTo(Xt+5,DisplayY(Y));
Form1.Pole.Canvas.TextOut(Xt+k,DisplayY(Y),FloatToStrF(Y,ffFixed,6,2 ));
End;
procedure TForm1.Button1Click(Sender: TObject);
var
X,Y:array of Currency;
NX,NY:Currency;
i,j:Integer;
Err:Boolean;
DX,DY:Word;
hm:Real;
begin
If SearchErrors Then Exit; //Ecëè â âûðàæåíèå åñòü ñèíòàêñè÷åñêèå îøèáêè
// Èíèöèàëèçàöèÿ
NX:=0;
NY:=0;
For I:=0 To High(X) Do
Begin
X[I]:=0;
Y[I]:=0;
End;
Form1.Tabulation.RowCount:=0;
Translation;
SetLength(X,0);
SetLength(Y,0);
//*****************************************************************************
// Ââîä Xmin è Xmax
try
Xmin:=StrToFloat(Form1.XminEdit.Text);
except
on EConvertError do
Begin
MessageDlg('Íåâåðíî çàäàí Xmin',mtError,[mbOK],0);
exit;
End;
end;
try
Xmax:=StrToFloat(Form1.XmaxEdit.Text);
except
on EConvertError do
Begin
MessageDlg('Íåâåðíî çàäàí Xmax',mtError,[mbOK],0);
exit;
End;
end;
Ymin:=maxCurrency; //Ïðèñâàèâàåì Ymin ìàêñèìàëüíî-âîçìîæíå äëÿ íåãî çíà÷åíèå
Ymax:=minCurrency; //Ïðèñâàèâàåì Ymin ìèíèìàëüíî-âîçìîæíå äëÿ íåãî çíà÷åíèå
//********************************************************************
hm:=1e-3; //Âíóòðåííèé øàã äëÿ ïðèäàíèÿ ïëàâíîñòè ãðàôèêó
ClearPole; //Î÷èñòêà ïîëÿ äëÿ ïîñòðîåíèÿ
//Ðåçåðâèðîâàíèå ïàìÿòè äëÿ îäíîãî ýëåìåíòà äèíàìè÷åñèõ ìàññèâîâ
//X è Y (ïî îäíîìó ýëåìåíòó â êàæäîì
SetLength(X,1);
SetLength(Y,1);
I:=0;
NX:=Xmin;
X[I]:=Xmin;
While X[I]<=Xmax Do
Begin
SetLength(X,Length(X)+1);
SetLength(Y,Length(Y)+1);
Y[I]:=Value(X[I],Err);
If not Err Then //Åñëè íåáûëî îøèáêè âðåìåíè âûïîëíåíèÿ
Begin
If Ymin>Y[I] Then Ymin:=Y[I]; //ïðîâåðÿåì íå ÿâëÿåòñÿ ëè Y[I] íîâûì Ymin
If Ymax<Y[I] Then Ymax:=Y[I]; //ïðîâåðÿåì íå ÿâëÿåòñÿ ëè Y[I] íîâûì Ymax
Inc(I);
X[I]:=X[I-1]+hm; // âû÷èñëÿåì ñëåäóþùåå çíà÷åíèå àðãóìåíòà
End
Else //Åñëè îøèáêà áûëà,
X[I]:=X[I]+hm; //òî âû÷èñëÿåì ñëåäóþùåå çíà÷åíèå ôóíêöèè
End;
If Form1.YminEdit.Text<>'' Then
try
Ymin:=StrToFloat(Form1.YminEdit.Text); //×òåíèå Ymin
except
on EConvertError do // Åñëè ïðîèçîøëà îøèáêà ïðåîáðàçîâàíèÿ èç ñòðîêè â ÷èñëî
Begin
MessageDlg('Íåâåðíî çàäàí Ymin',mtError,[mbOK],0);
exit;
End;
end;
If Form1.YmaxEdit.Text<>'' Then
try
Ymax:=StrToFloat(Form1.YmaxEdit.Text);
except
on EConvertError do // Åñëè ïðîèçîøëà îøèáêà ïðåîáðàçîâàíèÿ èç ñòðîêè â ÷èñëî
Begin
MessageDlg('Íåâåðíî çàäàí Ymax',mtError,[mbOK],0);
exit;
End;
end;
If ABS(Ymin)>999 Then //Ymin íå äîëæíî ïî ìîäóëþ ïðåâûøàòü 999
Begin
Ymin:=999*sgn(Ymin);
End;
If ABS(Ymax)>999 Then //Ymax íå äîëæíî ïî ìîäóëþ ïðåâûøàòü 999
Begin
Ymax:=999*sgn(Ymax);
End;
// Íà ñëó÷àé åñëè çíà÷åíèÿ Ymax è Ymin èçìåíèëèñü íà ïðåäûäóùèõ øàãàõ
// âûâåäåì êîíå÷íûå çíà÷åíèÿ ýòèõ ïåðåìåííûõ
Form1.YminEdit.Text:=FloatToStr(Ymin);
Form1.YmaxEdit.Text:=FloatToStr(Ymax);
//Ïðîðèñîâêà îñåé
DrawLines;
Form1.Refresh;
// ñîáñòâåííî ñòðîèì ãðàôèê ïî âû÷èñëåííûì òî÷êàì
For I:=0 To High(X) Do
If (Ymin<=Y[I]) and (Y[I]<=Ymax) and not Err Then // Ïðîâåðÿåì íå âûõîäÿò ëè
// Y[I] èç äèàïàçîíà [Ymin;Ymax]
Begin
//Âû÷èñëÿåì ýêðàííûå êîîðäèíàòû î÷åðåäíîé òî÷êè
DX:=DisplayX(X[I]);
DY:=DisplayY(Y[I]);
//ñòàâèì òî÷êó â âû÷èñëåííûõ êîîðäèíàòàõ
Form1.Pole.Canvas.Pixels[DX,DY]:=Form1.ColorBox.Colors[Form1.ColorBox.ItemIndex];
End;
//****************************************************
If (Form1.StepX.Text<>'') and Form1.CheckBox1.Checked Then
Begin
hx:=StrToFloat(Form1.StepX.Text);
NX:=Xmin;
I:=0;
While NX<=Xmax Do
Begin
NY:=Value(NX,Err);
If (Ymin<=NY) and (NY<=Ymax) and not Err Then
Begin
//Ïðîñòàâëåíèå òî÷åê áîëüøîãî äèàìåòðà
Form1.Pole.Canvas.Ellipse(DisplayX(NX)-3,DisplayY(NY)-3,DisplayX(NX)+3,DisplayY(NY)+3);
Form1.Pole.Canvas.Brush.Color:=clRed;
Form1.Pole.Canvas.FloodFill(DisplayX(NX),DisplayY(NY),clBlack,fsBorder);
Form1.Pole.Canvas.Brush.Color:=clWhite;
//Òàáóëÿöèÿ ôóíêöèè
Form1.Tabulation.RowCount:=Form1.Tabulation.RowCount+1;
Form1.Tabulation.Cells[0,I]:=FloatToStr(NX);
Form1.Tabulation.Cells[1,I]:=FloatToStr(NY);
inc(I);
End;
IF (Form1.CheckBox2.Checked) and (Form1.StepY.Text='') Then //Åñëè âêëþ
//÷åíî ãðàäóèðîâàíèå ïî OY è ØàãY íå çàäàí
GradY(NY); //ñòàâèì ðèñî÷êó â NY íà îñè OY
Form1.Refresh;
GradX(NX); //ñòàâèì ðèñî÷êó â NX íà îñè OX
Nx:=NX+hx; //ñëåäóþùèé NX ÷åðåç øàã hx
End;
//****************************************************************************
//------------×òîáû âûâîäèë ýêñòåìàëüíûå çíà÷åíèÿ ïðè ãðàäóèðîâàíèè-----------
If (Xmin=0) or (Xmax>0) Then k:=20 Else k:=-22;
If Form1.CheckBox2.Checked Then
Begin
Form1.Pole.Canvas.TextWidth('5');
Form1.Pole.Canvas.MoveTo(Xt-5,DisplayY(Ymax));
Form1.Pole.Canvas.LineTo(Xt+5,DisplayY(Ymax));
Form1.Pole.Canvas.TextOut(Xt+k,
DisplayY(Ymax)-2,
FloatToStrF(Ymax,ffFixed,6,2));
End;
If Form1.CheckBox2.Checked Then
Begin
Form1.Pole.Canvas.TextWidth('5');
Form1.Pole.Canvas.MoveTo(Xt-5,DisplayY(Ymin));
Form1.Pole.Canvas.LineTo(Xt+5,DisplayY(Ymin));
Form1.Pole.Canvas.TextOut(Xt+k,
DisplayY(Ymin)-12,
FloatToStrF(Ymin,ffFixed,6,2));
End;
//------------------------------------------------------------------------
End;
//*****************************************************
If (Ymin=0) or (Ymax>0) Then k:=-20 Else k:=0;
If Form1.CheckBox1.Checked Then
Begin
Form1.Pole.Canvas.TextWidth('5');
Form1.Pole.Canvas.MoveTo(DisplayX(Xmax)-1,Yt-5);
Form1.Pole.Canvas.LineTo(DisplayX(Xmax)-1,Yt+5);
Form1.Pole.Canvas.TextOut(DisplayX(Xmax)-Length(
FloatToStrF(Xmax,ffFixed,4,1 ))*4-1,Yt+k,FloatToStrF(Xmax,ffFixed,4,1 ));
End;
//Åñëè âêëþ÷åíî ãðàäóèðîâàíèå ïî OY è ØàãY çàäàí
IF (Form1.CheckBox2.Checked) and (Form1.StepY.Text<>'') Then
Begin
NY:=Ymin;
hy:=StrToFloat(Form1.StepY.Text);
While (NY<=Ymax) Do
Begin
GradY(NY);
NY:=NY+hy;
End;
End;
//--------------------Äîáàâëåíèå íîâîé ôóíêöèè â èñòîðèþ-----------------
Form1.Query1.Close;
Form1.Query1.SQL.Clear;
Query1.SQL.Add('SELECT * FROM History.db WHERE Analitic='''+InputPole.Text+'''');
Form1.Query1.Open;
If Query1.RecordCount=0 Then
Begin
try
Form1.Query1.Close;
Form1.Query1.SQL.Clear;
Form1.Query1.SQL.Add('INSERT INTO History.db (FunctionName,Analitic) VALUES( ''' + UpperCase(Form1.InputPole.Text + ''', '''+Form1.InputPole.Text)+''')');
Form1.Query1.Open;
except
end;
End;
end;
procedure TForm1.BitBtn2Click(Sender: TObject);
begin
// Î÷èñòêà ïîëåé äëÿ âõîäíûõ äàííûõ
Form1.StepX.Text:='';
Form1.StepY.Text:='';
Form1.YminEdit.Text:='';
Form1.YmaxEdit.Text:='';
Form1.XminEdit.Text:='';
Form1.XmaxEdit.Text:='';
Form1.InputPole.Text:='';
// Î÷èñòêà ìàññèâà òàáóëÿöèè
Form1.Tabulation.RowCount:=0;
Form1.Tabulation.Cells[0,0]:='';
Form1.Tabulation.Cells[1,0]:='';
ClearPole; //Î÷èñòêà ïîëÿ äëÿ ïîñòðîåíèÿ
end;
procedure Split(Source:String; Delimeter:char; var Mas: array of String);
var
Poz,I:Byte;
Begin
I:=0;
While Pos(Delimeter,Source)<>0 Do
Begin
poz:=Pos(Delimeter,Source);
Mas[I]:=Copy(Source,1,Poz-1);
Source:=Copy(Source,Poz+1,Length(Source)-Poz);
Inc(I);
End;
Mas[I]:=Source;
End;
procedure TForm1.Button2Click(Sender: TObject);
Begin
SaveAs;
End;
procedure SaveAs;
//********Ñîõðàíåíèå ãðàôèêà íà ôèñêå*****************
var
I,J:Cardinal;
L:Boolean;
grpFile:File of FRec;
Buf:FRec;
begin
If SaveFlag or (SaveFilePath='') Then
If Form1.SaveDialog1.Execute Then
SaveFilePath:=Form1.SaveDialog1.FileName;
If (SaveFilePath<>'') Then
Begin
For I:=0 To Form1.Pole.Width-1 Do
For J:=0 To Form1.Pole.Height-1 Do
Begin
Buf.Picture[I,J]:= Form1.Pole.Canvas.Pixels[I,J];
End;
For I:=0 To Form1.Tabulation.RowCount-1 Do
Begin
Buf.Tab[0,I]:= Form1.Tabulation.Cells[0,I];
BUF.Tab[1,I]:=Form1.Tabulation.Cells[1,I];
End;
Buf.Func:=Form1.InputPole.Text;
Buf.MinX:=Form1.XminEdit.Text;
Buf.MinY:=Form1.YminEdit.Text;
Buf.MaxX:=Form1.XmaxEdit.Text;
Buf.MaxY:=Form1.YmaxEdit.Text;
Buf.StepX:=Form1.StepX.Text;
Buf.StepY:=Form1.StepY.Text;
Buf.ColorIndex:=Form1.ColorBox.ItemIndex;
Buf.verUp:=2;
Buf.verDown:=0;
Buf.verRevision:=0;
//Íåïîñðåäñòâåííàÿ çàïèñü íà äèñê
If Copy(SaveFilePath,Length(SaveFilePath)-3,4)<>'.gdr' Then
SaveFilePath:=SaveFilePath+'.gdr';
AssignFile(grpFile,String(SaveFilePath));
Rewrite(grpFile);
Write(grpFile,Buf);
CloseFile(grpFile);
End
Else
Dialogs.MessageDlg('Âû íå çàäàëè èìÿ ôàéëà. Ñîõðàíåíèå íå âîçìîæíî',mtError,[mbOk],5);
end;
procedure Open;
var
I,J:Cardinal;
grpFile:File of FRec;
Buf:FRec;
begin
Form1.Tabulation.RowCount:=0;
Form1.Tabulation.Cells[0,0]:='';
Form1.Tabulation.Cells[0,1]:='';
IF flag Then
SaveFilePath:=ParamPath
else
If Form1.OpenDialog1.Execute Then
SaveFilePath:=Form1.OpenDialog1.FileName;
If SaveFilePath<>'' Then
Begin
try
AssignFile(grpFile,String(SaveFilePath));
Reset(grpFile);
Read(grpFile,Buf);