Реферат: Вращение треугольника

Angle := 0.1;

Draw(White);

Delay(Time2W);

Draw(Black);

for A := 1 to 3 do

begin

Xn := Round(ctr[1][a] * cos(Angle) + K * ctr[2][a] * sin(Angle));

Yn := Round(-K * ctr[1][a] * sin(Angle) + ctr[2][a] * cos(Angle));

Ctr[1][a] := Xn; Ctr[2][a] := Yn;

end;

Draw(White);

DrawText(105,60,Str2(x_c+ctr[1][1]));

DrawText(105,75,Str2(x_c+ctr[2][1]));

DrawText(105,90,Str2(x_c+ctr[1][2]));

DrawText(155,60,Str2(x_c+ctr[2][2]));

DrawText(155,75,Str2(x_c+ctr[1][3]));

DrawText(155,90,Str2(x_c+ctr[2][3]));

end;

begin

RegisterBgiDriver(@vgaDrv);

K:=-1;

Time2W := 15;

SetCenter(320,240);

Angle := 0.1;

grDriver := Detect;

grMode:=VGAHi; {video mode VGA 640x480x16colors}

InitGraph(grDriver, grMode,'');

ErrCode := GraphResult;

if ErrCode = grOk then