Problème de modélisation sur Delphi

**chris.f** · 29/05/2014, 18h44

Bonjour,
je rencontre un petit problème sur Delphi: j'ai modélisé un pont et celui ci doit se lever. Or, j'arrive à faire bouger les trois lignes qui représentent le pont mais pas le polygone qui représente l’extrémité du pont ,et dont le mouvement doit être synchronisé avec celui-ci (question de réalisme). Auriez vous des idées à me proposer? J'ai joint une image du problème ainsi que les lignes de code. Nom : Modélisation.JPG
Affichages : 165
Taille : 130,4 Ko

Nom : Modélisation.JPG
Affichages : 165
Taille : 130,4 Ko

Code :

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// Création des six lignes modélisant le pont
 
var
  Form1: TForm1;
  t,z,etape,loop,q:integer;
   x1,y1,l1,m1,a1,b1,c1,d1,e1,f1,g1,h1,w0,w1,w2,w3,w4,w5,b:integer;
   mouvement:integer=0;
 
   const
   x0=180;
   y0=397;
   r=258;
 
   l0=160;
   m0=408;
   r1=266;
 
   a0=161;
   b0=449;
   r2=266;
 
   c0=740;
   d0=397;
   r3=305;
 
   e0=730;
   f0=408;
   r4=305;
 
   g0=729;
   h0=449;
   r5=306;
 
//Permet de faire bouger chaque ligne du pont
 
implementation
 
uses Unit2, Unit3;
procedure tform1.timer1timer(sender:tobject);
begin
 
 
               x1:=round(x0+r*cos(t));
               y1:=round(y0+w0*sin(100));
               moveto(x0,y0);
               lineto(x1-z,y1-z);
 
               l1:=round(l0+r1*cos(t));
               m1:=round(m0+w1*sin(100));
               moveto(l0,m0);
               lineto(l1-z,m1-z);
 
               a1:=round(a0+r2*cos(t));
               b1:=round(b0+w2*sin(100));
               moveto(a0,b0);
               lineto(a1-z,b1-z);
 
               c1:=round(c0+r3*-cos(t));
               d1:=round(d0+w3*sin(100));
               moveto(c0,d0);
               lineto(c1+z,d1-z);
 
               e1:=round(e0+r4*-cos(t));
               f1:=round(f0+w4*sin(100));
               moveto(e0,f0);
               lineto(e1+z,f1-z);
 
               g1:=round(g0+r5*-cos(t));
               h1:=round(h0+w5*sin(100));
               moveto(g0,h0);
               lineto(g1+z,h1-z);
 
// Polygone représentant l'extrémité du pont
 
polygon([point(418,408),point(439,398),point(439,441),point(419,449)]);

**Lung** · 30/05/2014, 08h29

Petite question :
Pourquoi ne pas utiliser des bibliothèques (comme OpenGL) dont c'est le rôle (de faire de la 3D), plutôt que de réinventer la roue ?
(Je suis d'accord que ça peut avoir aussi un intérêt à faire les choses par soi-même)

**Paul TOTH** · 30/05/2014, 08h45

euh...tu calcules déjà 3 des points formants l'extrémité du pond...il ne reste qu'à calculer le quatrième et dessiner le polygone

Code :

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var
  p: array[0..3] of TPoint;
begin
  ...
  p[0].x := round(c0+r3*-cos(t));
  p[0].y := ...
  p[1].x := ...
 
  polygon(p);
end;

**chris.f** · 30/05/2014, 11h19

Bonjour,
Merci pour la réponse

,cependant après avoir intégré les lignes de code, et crée le polygone, cela ne marche toujours pas

. Voici les lignes de code (les lignes que j'ai intégrées selon vos conseils commencent à partir de la ligne 175).

Code :

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unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, jpeg;
 
type
  TForm1 = class(TForm)
    Image1: TImage;
    Timer1: TTimer;
    Button7: TButton;
    Button8: TButton;
    Button9: TButton;
    Image2: TImage;
    Timer2: TTimer;
    Image3: TImage;
    Timer3: TTimer;
    Timer4: TTimer;
    Timer5: TTimer;
    bateau: TImage;
    Timer6: TTimer;
    Button2: TButton;
    procedure timer1timer(sender:tobject);
    procedure Button9Click(Sender: TObject);
    procedure Timer2Timer(Sender: TObject);
 
 
    procedure Button7Click(Sender: TObject);
    procedure Button8Click(Sender: TObject);
    procedure Timer3Timer(Sender: TObject);
    procedure Timer4Timer(Sender: TObject);
    procedure bateauClick(Sender: TObject);
    procedure Timer6Timer(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
  //faire tourner la ligne (utiliser case pour symétrie)
 
var
  Form1: TForm1;
  t,z,etape,loop,q:integer;
   x1,y1,l1,m1,a1,b1,c1,d1,e1,f1,g1,h1,w0,w1,w2,w3,w4,w5,b:integer;
   mouvement:integer=0;
   p: array[0..3] of TPoint;
 
   const
   x0=180;
   y0=397;
   r=258;
 
   l0=160;
   m0=408;
   r1=266;
 
   a0=161;
   b0=449;
   r2=266;
 
   c0=740;
   d0=397;
   r3=305;
 
   e0=730;
   f0=408;
   r4=305;
 
   g0=729;
   h0=449;
   r5=306;
 
 
 
 
implementation
 
uses Unit2, Unit3;
procedure tform1.timer1timer(sender:tobject);
begin
 
with form1.image1.canvas do
begin
fillrect(clientrect);
 
              Pen.width:=2;
              Pen.Color:=clpurple;
 
 
              //délimitation terre-mer
 
              brush.Color := rgb(0,237,0);
              polygon([point(0,270),point(214,270),point(0,483)]);
               brush.Color := rgb(255,255,255);
 
               brush.Color := rgb(90,213,255);
              polygon([point(214,270),point(1017,270),point(781,767),point(0,767),point(0,483)]);
               brush.Color := rgb(255,255,255);
 
               brush.Color := rgb(0,237,0);
              polygon([point(1017,270),point(1350,270),point(1350,767),point(781,767)]);
              brush.Color := rgb(255,255,255);
 
               brush.Color := rgb(143,157,179);
              polygon([point(0,270),point(1350,270),point(1350,0),point(0,0)]);
              brush.Color := rgb(255,255,255);
 
                 //voiture
 
              polygon([point(196+b,400),point(255+b,400),point(255+b,380), point(196+b,380)]);
              if mouvement=2 then
              case etape of
 
              0:begin
              b:=b+1;
              if (b>1) then
              etape:=1;
              end;
 
              1:begin
              b:=b+1;
              if (b>200) then
              etape:=2;
              end;
 
              end;
 
                    //bateau
 
                brush.Color := rgb(149,100,222);
              polygon([point(749+t,668),point(903+t,668),point(941+t,621),point(694+t,621)]);
              polygon([point(823+t,620),point(823+t,532)]);
              polygon([point(823+t,582),point(859+t,582),point(824+t,549)]);
                brush.Color := rgb(255,255,255);
 
 
              //faire bouger une ligne précise
 
 
               x1:=round(x0+r*cos(t));
               y1:=round(y0+w0*sin(100));
               moveto(x0,y0);
               lineto(x1-z,y1-z);
 
               l1:=round(l0+r1*cos(t));
               m1:=round(m0+w1*sin(100));
               moveto(l0,m0);
               lineto(l1-z,m1-z);
 
               a1:=round(a0+r2*cos(t));
               b1:=round(b0+w2*sin(100));
               moveto(a0,b0);
               lineto(a1-z,b1-z);
 
               c1:=round(c0+r3*-cos(t));
               d1:=round(d0+w3*sin(100));
               moveto(c0,d0);
               lineto(c1+z,d1-z);
 
               e1:=round(e0+r4*-cos(t));
               f1:=round(f0+w4*sin(100));
               moveto(e0,f0);
               lineto(e1+z,f1-z);
 
               g1:=round(g0+r5*-cos(t));
               h1:=round(h0+w5*sin(100));
               moveto(g0,h0);
               lineto(g1+z,h1-z);
 
 
  p[0].x := round(x0+r*cos(t));
  p[0].y := round(y0+w0*sin(100));
  p[1].x := round(l0+r1*cos(t));
  p[1].y := round(m0+w1*sin(100));
  p[2].x := round(a0+r2*cos(t));
  p[2].y := round(b0+w2*sin(100));
 
                 // polygone de l'extremité du pont
                polygon([point(418,408),point(439,398),point(439,441),point(419,449)]);
 
 
              //tour partie gauche
 
              //colonnes
 
              brush.Color := rgb(149,200,222);
              polygon([point(46,493),point(160,493),point(160,407),point(46,407)]);
              polygon([point(46,415),point(160,415)]);
              polygon([point(160,493),point(184,486),point(184,403),point(160,407)]);
              polygon([point(46,407),point(57,400)]);
              polygon([point(57,407),point(77,407),point(77,182),point(57,182)]);
              polygon([point(57,182),point(77,182),point(77,156),point(57,156)]);
              polygon([point(57,162),point(77,162)]);
              polygon([point(138,407),point(160,407),point(157,182),point(138,182)]);
              polygon([point(138,182),point(157,182),point(156,157),point(138,157)]);
              polygon([point(138,161),point(156,161)]);
              polygon([point(168,177),point(180,172),point(179,147),point(168,149)]);
              polygon([point(168,155),point(179,154)]);
              polygon([point(156,169),point(168,165)]);
               brush.Color := rgb(255,255,255);
 
              //toits partie gauche
 
              brush.Color := rgb(149,200,222);
              polygon([point(57,156),point(77,156),point(67,102)]);
              polygon([point(138,157),point(156,157),point(147,101)]);
              polygon([point(168,149),point(179,147),point(172,96)]);
              polygon([point(77,169),point(123,71),point(123,71),point(144,115),point(138,157),point(138,169)]);
              polygon([point(152,130),point(168,160),point(168,178),point(157,182),point(156,157),point(152,130)]);
 
               brush.Color := rgb(255,255,255);
               polygon([point(116,84),point(129,84)]);
               polygon([point(156,168),point(168,165)]);
 
 
                 //murs frontaux
 
                      brush.Color := rgb(149,200,222);
              polygon([point(138,169),point(77,169)]);
              polygon([point(180,172),point(157,182)]);
 
              polygon([point(184,403),point(180,172)]);
              polygon([point(77,169),point(138,169),point(138,407),point(77,407)]);
              polygon([point(160,407),point(183,403),point(180,172),point(157,182)]);
 
                       brush.Color := rgb(255,255,255);
                       polygon([point(77,299),point(138,299)]);
                        polygon([point(77,182),point(138,182)]);
                        polygon([point(157,299),point(180,294)]);
 
              //fenetres partie gauche
 
              brush.Color := rgb(0,0,108);
              polygon([point(84,387),point(97,387),point(97,329),point(84,329)]);
              polygon([point(115,387),point(128,387),point(128,329),point(115,329)]);
              polygon([point(84,276),point(97,276),point(97,218),point(84,218)]);
              polygon([point(115,277),point(128,277),point(128,219),point(115,219)]);
 
              polygon([point(160,387),point(164,383),point(164,326),point(160,332)]);
              polygon([point(172,386),point(176,380),point(176,326),point(172,330)]);
              polygon([point(160,277),point(164,273),point(164,216),point(160,220)]);
              polygon([point(172,276),point(176,271),point(176,214),point(172,219)]);
              brush.Color := rgb(255,255,255);
 
 
              //antennes
 
              polygon([point(67,102),point(67,80)]);
              polygon([point(147,101),point(147,82)]);
              polygon([point(123,71),point(123,43)]);
              polygon([point(172,97),point(172,80)]);
 
 
 
              //tour partie droite
 
              //fondation
 
               brush.Color := rgb(149,200,222);
              polygon([point(729,493),point(843,493),point(843,407),point(729,407)]);
              polygon([point(729,415),point(843,415)]);
              polygon([point(843,493),point(867,485),point(867,401),point(843,407)]);
              polygon([point(843,415),point(867,410)]);
              polygon([point(729,407),point(740,401)]);
              polygon([point(160,415),point(184,412)]);
               brush.Color := rgb(255,255,255);
 
              //colonnes
 
              brush.Color := rgb(149,200,222);
              polygon([point(740,407),point(760,407),point(760,182),point(740,182)]);
              polygon([point(740,182),point(760,182),point(760,156),point(740,156)]);
              polygon([point(740,162),point(760,162)]);
 
              polygon([point(821,407),point(840,407),point(840,182),point(821,182)]);
              polygon([point(821,182),point(840,182),point(839,157),point(821,157)]);
              polygon([point(821,161),point(839,161)]);
 
              polygon([point(851,178),point(862,174),point(862,147),point(851,149)]);
              polygon([point(851,155),point(862,153)]);
               brush.Color := rgb(255,255,255);
 
              //toits partie droite
 
              brush.Color := rgb(149,200,222);
              polygon([point(740,156),point(760,156),point(750,102)]);
              polygon([point(821,157),point(839,157),point(830,101)]);
              polygon([point(851,149),point(862,147),point(855,99)]);
              polygon([point(760,169),point(806,71),point(827,115),point(821,157),point(821,169),point(821,407),point(760,407),point(760,169)]);
              polygon([point(835,130),point(851,160)]);
              polygon([point(798,84),point(812,84)]);
              polygon([point(806,71),point(806,43)]);
               brush.Color := rgb(255,255,255);
 
               //murs frontaux
 
               brush.Color := rgb(149,200,222);
              polygon([point(863,403),point(862,174)]);
              polygon([point(760,299),point(821,299)]);
              polygon([point(760,182),point(821,182)]);
              polygon([point(760,169),point(821,169)]);
               polygon([point(835,130),point(839,157),point(840,407),point(863,403),point(862,174),point(851,178),point(851,160),point(835,130)]);
 
 
               brush.Color := rgb(255,255,255);
               polygon([point(840,299),point(863,293)]);
               polygon([point(840,182),point(862,174)]);
               polygon([point(839,169),point(851,164)]);
 
              //fenetres partie droite
 
              brush.Color := rgb(0,0,108);
              polygon([point(767,387),point(780,387),point(780,329),point(767,329)]);
              polygon([point(798,387),point(811,387),point(811,329),point(798,329)]);
              polygon([point(767,276),point(780,276),point(780,218),point(767,218)]);
              polygon([point(798,277),point(811,277),point(811,219),point(798,219)]);
 
              polygon([point(843,387),point(847,383),point(847,327),point(843,331)]);
              polygon([point(843,277),point(847,274),point(847,217),point(843,221)]);
              polygon([point(855,386),point(859,381),point(859,326),point(855,330)]);
              polygon([point(855,276),point(859,270),point(859,215),point(855,219)]);
               brush.Color := rgb(255,255,255);
 
 
              //antennes
 
              polygon([point(750,102),point(750,80)]);
              polygon([point(830,101),point(830,81)]);
              polygon([point(855,99),point(855,81)]);
 
 
 
              //pont partie haut
 
              brush.Color := rgb(149,200,222);
              polygon([point(180,191),point(740,191),point(740,199),point(157,199),point(180,191)]);
              polygon([point(157,199),point(740,199),point(740,215),point(157,215)]);
              polygon([point(157,215),point(740,215)]);
               brush.Color := rgb(255,255,255);
 
              //panneau
 
              brush.Color := rgb(149,100,222);
              polygon([point(410,215),point(465,215),point(465,185),point(410,185)]);
                brush.Color := rgb(255,255,255);
 
 
 
    brush.color:=clwhite;
end;
end;
 
{$R *.dfm}
 
procedure TForm1.Button9Click(Sender: TObject);
begin
form1.close;
end;
 
procedure TForm1.Timer2Timer(Sender: TObject);
begin
image2.Left:= image2.Left-30;
if (image2.Left<-100) then image2.Left:=1100;
end;
 
 
 
 
 
procedure TForm1.Button7Click(Sender: TObject);
begin
form2.show
end;
 
procedure TForm1.Button8Click(Sender: TObject);
begin
form3.show
end;
 
procedure TForm1.Timer3Timer(Sender: TObject);
begin
 
 
mouvement:=0;
 
 
 if mouvement=0 then
 
 
               case etape of
               0:begin
               z:=z+10;
               if(z=150)then
               etape:=1;
 
                end;
 
   end;
 
end;
 
 
procedure TForm1.Timer4Timer(Sender: TObject);
begin
 
begin
mouvement:=1;
        if mouvement=1 then
        case etape of
                1:begin
               z:=z-5;
               if(z=0)then
               etape:=2;
               end;
               end;
 
end;
end;
 
procedure TForm1.bateauClick(Sender: TObject);
begin
bateau.Visible:=true;
bateau.Top:=209;
bateau.Left:=72;
 
end;
 
procedure TForm1.Timer6Timer(Sender: TObject);
begin
 bateau.Left:=bateau.Left-2;
    bateau.Top:=bateau.Top+3;
    if (bateau.Top<269) then bateau.Top:=268;
    if (bateau.Left> 800 )then bateau.Left:=409;
 
end;
 
procedure TForm1.Button2Click(Sender: TObject);
begin
mouvement:=2;
begin
              b:=b+20;
 
              end;
 
 
end;
 
end.

**Paul TOTH** · 30/05/2014, 16h39

Code :

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p[0].x := round(x0+r*cos(t));
  p[0].y := round(y0+w0*sin(100));
  p[1].x := round(l0+r1*cos(t));
  p[1].y := round(m0+w1*sin(100));
  p[2].x := round(a0+r2*cos(t));
  p[2].y := round(b0+w2*sin(100));
 
                 // polygone de l'extremité du pont
                polygon([point(418,408),point(439,398),point(439,441),point(419,449)]);

ce doit être une blague, c'est pour caméra cachée belge c'est ça ? ils sont trop fort pour faire des gags les belges

**chris.f** · 31/05/2014, 12h52

Non, non, je vous assure, ce n'est pas une blague

J'ai beau avoir integré votre code et le polygone ne bouge toujours pas d'un centimètre... (cela peut aussi etre du au fait que je sois débutant sur Delphi...)

**Gilbert Geyer** · 31/05/2014, 13h31

Bonjour,

les lignes que j'ai intégrées selon vos conseils commencent à partir de la ligne 175

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Ligne 175 p[0].x := round(x0+r*cos(t));
          p[0].y := round(y0+w0*sin(100));
          p[1].x := round(l0+r1*cos(t));
          p[1].y := round(m0+w1*sin(100));
          p[2].x := round(a0+r2*cos(t));
          p[2].y := round(b0+w2*sin(100));
 
                         // polygone de l'extremité du pont
Ligne 183               polygon([point(418,408),point(439,398),point(439,441),point(419,449)]);

Si p[0] à p[3] sont les points de l'extrémité du pont alors le polygone de l'extremité du pont c'est polygon([p[0], p[1], p[2], p[3]]) et non le polygone des constantes en rouge.
En plus il manque le calcul de p[3].

A+.

**Paul TOTH** · 31/05/2014, 15h48

Envoyé par Gilbert Geyer

Bonjour,

Si p[0] à p[3] sont les points de l'extrémité du pont alors le polygone de l'extremité du pont c'est polygon([p[0], p[1], p[2], p[3]]) et non le polygone des constantes en rouge.
En plus il manque le calcul de p[3].

A+.

ou plus simplement Polygon(p) comme donné dans mon code

**Andnotor** · 31/05/2014, 17h11

C'est surtout ces 100 radians qui piquent les yeux

Problème de modélisation sur Delphi

Langage Delphi

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