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                        procedure drawGird( var image1: TImage; needAxisLines: Boolean = True );
var
  xP, yP: Integer;
  xC, yC: Double;
  h, w, tx, ty: Integer;
  Text: String;
begin
  image1.Canvas.FillRect( image1.ClientRect );
  accuracy := 1 / cellSize;
  image1.Canvas.Brush.Style := bsClear;
  xC := p2cX( 0 );
  while forC( xC, p2cX( image1.Width ), accuracy ) do
    if floor( xC * cellSize ) mod cellSize = 0 then
    begin
      xP := c2pX( xC );
      image1.Canvas.Pen.Color := clSilver;
      image1.Canvas.MoveTo( xP, 0 );
      image1.Canvas.LineTo( xP, image1.Height );
      if ( needaxislines ) and ( abs( xC ) > 0.5 ) and
        ( xP > 30 ) and ( xP < image1.Width - 30 ) then
      begin
        image1.Canvas.Pen.Color := clBlack;
        image1.Canvas.MoveTo( xP, c2pY( -0.5 ) );
        image1.Canvas.LineTo( xP, c2pY( 0.5 ) );
      end;
    end;
  yC := p2cY( 0 );
  while forC( yC, p2cY( image1.Height ), accuracy ) do
    if floor( yC * cellSize ) mod cellSize = 0 then
    begin
      yP := c2pY( yC );
      image1.Canvas.Pen.Color := clSilver;
      image1.Canvas.MoveTo( 0, yP );
      image1.Canvas.LineTo( image1.Width, yP );
      if ( needaxislines ) and ( abs( yC ) > 0.5 ) and
        ( yP > 30 ) and ( yP < image1.Height - 30 ) then
      begin
        image1.Canvas.Pen.Color := clBlack;
        image1.Canvas.MoveTo( c2pX( -0.5 ), yP );
        image1.Canvas.LineTo( c2pX( 0.5 ), yP );
      end;
    end;
  xC := p2cX( 0 );
  while forC( xC, p2cX( image1.Width ), accuracy ) do
    if floor( xC * cellSize ) mod cellSize = 0 then
    begin
      xP := c2pX( xC );
      if ( needaxislines ) and ( abs( xC ) > 1.5 ) and
        ( xP > 30 ) and ( xP < image1.Width - 30 ) then
      begin
        image1.Canvas.Pen.Color := clBlack;
        Text := IntToStr( floor( xC ) );
        h := image1.Canvas.TextHeight( Text ) div 2;
        w := image1.Canvas.TextWidth( Text ) div 2;
        image1.Canvas.TextOut( xP - w, c2pY( -0.5 ) + ( h + 3 ) *
          ( ( floor( abs( xC ) ) mod ( ( ( w * 2 + 8 ) div cellSize ) +
          1 ) ) ), Text );
      end;
    end;
  yC := p2cY( 0 );
  while forC( yC, p2cY( image1.Height ), accuracy ) do
    if floor( yC * cellSize ) mod cellSize = 0 then
    begin
      yP := c2pY( yC );
      if ( needaxislines ) and ( abs( yC ) > 1.5 ) and
        ( yP > 30 ) and ( yP < image1.Height - 30 ) then
      begin
        image1.Canvas.Pen.Color := clBlack;
        Text := IntToStr( floor( yC ) );
        h := image1.Canvas.TextHeight( Text ) div 2;
        w := image1.Canvas.TextWidth( Text ) div 2;
        image1.Canvas.TextOut( c2pX( -0.5 ) - w * 2 - 2, yP - h, Text );
      end;
    end;
  image1.Canvas.Brush.Style := bsSolid;
end;
                                 
        
Одна строка кода, для того, чтобы нарисовать нарисовать пиписюнчик.
Пиписюнчик - зачем писать больше?
обломись
используют функции высшего порядка
Функциональные боги уже давно на карибах, а ты всё продолжаешь писать код.
:D