def mre(self, event): # функция отпускания мыши
im_width, im_height = int(self.im.size[0]), int(
self.im.size[1]) # ширина и высота изображения
gv_width = list(QRect.getRect(self.ui.graphicsView.geometry()))[
2] # ширина обозревателя graphicsView
gv_height = list(QRect.getRect(self.ui.graphicsView.geometry()))[
3] # высота обозревателя graphicsView
self.rect = self.rubberBand.geometry()
self.coords = list(QRect.getCoords(
self.rect)) # координаты выделенного прямоугольника
self.coords[2] = self.borders(self.coords[2], gv_width)
self.coords[3] = self.borders(self.coords[3], gv_height)
c = self.coords
self.rubberBand.hide() # скрыть прямоугольник
self.ui.label_7.setText("select coords: {} ".format(str(self.coords)))
scr_v = int(self.ui.graphicsView.verticalScrollBar().sliderPosition()
) # позиция вертикального скрола
scr_h = int(self.ui.graphicsView.horizontalScrollBar().sliderPosition(
)) # позиция горизонтального скрола
self.real_coords = [
c[0] + scr_h, c[1] + scr_v, c[2] + scr_h, c[3] + scr_v
] # реальные координаты
self.real_coords[2] = self.borders(self.real_coords[2], im_width)
self.real_coords[3] = self.borders(self.real_coords[3], im_height)
self.ui.label_8.setText("real coords: {} ".format(str(
self.real_coords)))
class Objekt():
def __init__(self, form):
# self.velocity = 0
self.mass = 500
self.radius = round(self.mass / 20)
self.position = (30, 30)
if form == "Rechteck":
self.velocity = (0, 0)
self.rect = QRect(self.position[0], self.position[1], self.radius,
self.radius)
self.vec_x = 30
self.vec_y = 30
self.force = 0
self.gforce = (0, 0)
def gravitation(self, obj, gkonst):
vector = mathe.normalize(
(obj.vec_x - self.vec_x, obj.vec_y - self.vec_y))
try:
gforce = vector * abs(gkonst * (self.mass * obj.mass) /
math.sqrt((self.vec_x - obj.vec_x)**2 +
(self.vec_y - obj.vec_y)**2))
except:
gforce = (0, 0)
vector = (vector[0] * gforce, vector[1] * gforce)
# print(mathe.normalize(vector),",",self)
# print(self, " ", "x:", mathe.normalize(vector)[0], "y: ", mathe.normalize(vector)[1])
return (vector, gforce)
def check_size(self):
self.rect = QRect(self.rect.getCoords()[0],
self.rect.getCoords()[1], self.radius, self.radius)
def check_forces(self):
self.force = self.gforce # addition aller wirkenden kräfte (als vector!)
def check_vel(self):
# print(self.force, " check_vel")
self.velocity = (self.velocity[0] + self.force[0] / self.mass,
self.velocity[1] + self.force[1] / self.mass
) # v = a*t a = F/m
def changepos(self):
current_coords = self.position # !gibt nur INTs aus. Unterscheide zwischen Pixel und Koordinaten!
# print(current_coords[0])
self.vec_x = current_coords[0] + self.velocity[0]
self.vec_y = current_coords[1] + self.velocity[1]
self.position = (self.vec_x, self.vec_y)
# print(self, " ", "x:", self.vec_x, "y: ", self.vec_y, "vec_x:", self.direction[0], "vec_y:", self.direction[1], "vel", self.velocity, "cur: ", current_coords)
def draw(self):
try:
# print(round(self.vec_x, 0))
self.rect.moveTo(round((self.vec_x)), round(float(self.vec_y)))
except:
pass
def update(self):
self.check_forces()
self.check_vel()
self.changepos()
self.draw()
self.check_size()
def _setRect(self, selection: QRect, do_emit=True):
self.selection = selection
l,t,r,b = selection.getCoords()
self.lbl.setText(f'From ({l},{t}) to ({r},{b})')
if do_emit:
self.selectionChanged.emit()
