Un ejemplo sencillo aunque vistoso para graficar en 3D
Código Delphi
[-]
unit graf3d;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, Grids;
type
TForm1 = class(TForm)
Button1: TButton;
procedure DrawLine(x,y,z : integer);
function Cl(z : integer; mx : integer) : TColor;
procedure Button1Click(Sender: TObject);
end;
var
Form1: TForm1;
implementation
uses math;
{$R *.DFM}
procedure TForm1.Button1Click(Sender: TObject);
var
x,y,z : integer;
begin
doublebuffered := true;
z := 1;
for y := 400 downto -400 do
for x := 600 downto -600 do
begin
try
z := Round(150*cos(PI*x/100)*sin(PI*(y)/200));
z := Round(100*cos((x + y - z)/50));
except
z := 1;
end;
DrawLine(x,y,z);
Application.ProcessMessages;
end;
end;
procedure TForm1.DrawLine(x,y,z : integer);
var
cx,cy : integer;
i,j : integer;
begin
cx := Width div 2;
cy := Height div 2;
i := x - Round(-0.75*y) + cx;
j := cy - y;
Canvas.Pen.Color := Cl(z,100);
Canvas.MoveTo(i,j);
Canvas.LineTo(i,j-z)
end;
function TForm1.Cl(z : integer; mx : integer) : TColor;
begin
if z > 0 then
Cl := TColor(Round($FF*z/mx)*$000101)
else
Cl := TColor(Round($FF*-z/mx)*$010000);
end;
end.