def tryTrans(self, p0, p2, sens): nbp = self.fig.nbp virtual_fig = Shape(nbp, [(0,0) for i in range(nbp)]) p1 = self.fig.shape.at(1) #on determine le vecteur de translation a partir des coord du centre et du milieu du trait avant du carre x0 = (abs(p0.x() - p2.x())/2 + min((p0.x(), p2.x()))) y0 = (abs(p0.y() - p2.y())/2 + min((p0.y(), p2.y()))) x1 = abs(p0.x() - p1.x())/2 + min((p0.x(), p1.x())) y1 = (abs(p0.y() - p1.y())/2 + min((p0.y(), p1.y()))) norme = np.sqrt((x1-x0)**2 + (y1-y0)**2) v_t = (sens*(x1-x0)*self.pas/norme, sens*(y1-y0)*self.pas/norme) Trans = np.array([[1,0,v_t[0]],[0,1,v_t[1]]])#matrice de translation for i in range(nbp): point = self.fig.shape.at(i) pt = np.array([[point.x()],[point.y()],[1]]) new_point = np.dot(Trans, pt) virtual_fig.shape.replace(i, QPointF(new_point[0], new_point[1])) if collisions.check_collisions(virtual_fig, self.ofig, self.geometry()): virtual_fig.shape.swap(self.fig.shape)
def tryRotate(self, p0, p2, theta): # p0, p2, theta nbp = self.fig.nbp virtual_fig = Shape(nbp, [(0,0) for i in range(nbp)]) #recuperer les coord du centre de rotation à partir du milieu de la diagonale plus la position du carré x0 = (abs(p0.x() - p2.x())/2 + min((p0.x(), p2.x()))) y0 = (abs(p0.y() - p2.y())/2 + min((p0.y(), p2.y()))) #definir la matrice de rotation Rot = np.array([[np.cos(theta),-np.sin(theta)], [np.sin(theta), np.cos(theta)]]) #appliquer la rotation a l'ensemble des points for i in range(nbp): point = self.fig.shape.at(i) pt = np.array([[point.x()-x0],[point.y()-y0]]) new_point = np.dot(Rot, pt) #mettre a jour les points virtual_fig.shape.replace(i, QPointF(new_point[0]+x0, new_point[1]+y0)) if collisions.check_collisions(virtual_fig, self.ofig, self.geometry()): virtual_fig.shape.swap(self.fig.shape)
