def check_collision_2d(self, posx, posy):
s = self._base_scale * self._scale
offset = Vector3(self.position.x * s, self.position.y * s,
self.position.z * s)
local_x = (posx - self.position.x)
local_y = (posy - self.position.y)
print(local_x, local_y)
ray = Line(Vector3(local_x / s, local_y / s, 10), Vector3(0, 0, -1))
closest = None
clicked = None
for name, mesh in self._model.named_meshes.items():
for triangle in mesh.triangles:
result = ray.collide(triangle)
if result is not False:
point, d = result
if closest is None or d < closest:
closest = d
clicked = name
return clicked
def create_ray_from_mouseclick(self, mousex, mousey, yisup=False):
self.camera_direction.normalize()
height = self.canvas_height
width = self.canvas_width
view = self.camera_direction.copy()
h = view.cross(Vector3(0, 0, 1))
v = h.cross(view)
h.normalize()
v.normalize()
rad = 75 * pi / 180.0
vLength = tan(rad / 2) * 1.0
hLength = vLength * (width / height)
v *= vLength
h *= hLength
x = mousex - width / 2
y = height - mousey - height / 2
x /= (width / 2)
y /= (height / 2)
camerapos = Vector3(self.offset_x, self.offset_z, self.camera_height)
pos = camerapos + view * 1.0 + h * x + v * y
dir = pos - camerapos
if yisup:
tmp = pos.y
pos.y = -pos.z
pos.z = tmp
tmp = dir.y
dir.y = -dir.z
dir.z = tmp
return Line(pos, dir)
def mousePressEvent(self, event):
if event.buttons() & Qt.RightButton:
self.last_move = (event.x(), event.y())
elif event.buttons() & Qt.MiddleButton:
print("hi", self.current_render_index)
self.current_render_index += 1
#self.re_render(self.model)
elif event.buttons() & Qt.LeftButton:
self.current_render_index = 0
if self.camera_direction is not None:
self.camera_direction.normalize()
view = self.camera_direction.copy()
h = view.cross(Vector3(0, 0, 1))
v = h.cross(view)
h.normalize()
v.normalize()
rad = 75 * pi / 180.0
vLength = tan(rad / 2) * 1.0
hLength = vLength * (self.width / self.height)
v *= vLength
h *= hLength
mirror_y = self.height - event.y()
x = event.x() - self.width / 2
y = mirror_y - self.height / 2
x /= (self.width / 2)
y /= (self.height / 2)
camerapos = Vector3(self.offset_x, self.offset_y,
self.camera_height)
pos = camerapos + view * 1.0 + h * x + v * y
dir = pos - camerapos
#self.lines.append((pos.x+0.5, pos.y, pos.z))
#self.lines.append((pos.x + dir.x*400, pos.y + dir.y*400, pos.z + dir.z*400))
# Plane Intersection
line = Line(camerapos, dir)
nearest_coll = None
nearest_dist = None
for tri in self.collision:
collision = line.collide(tri)
if collision is not False:
point, distance = collision
if nearest_coll is None or distance < nearest_dist:
nearest_coll = point
nearest_dist = distance
if nearest_coll is not None:
collision = nearest_coll
self.lines.append((collision.x + dir.x * -100,
collision.y + dir.y * -100,
collision.z + dir.z * -100))
self.lines.append((collision.x + dir.x * +100,
collision.y + dir.y * +100,
collision.z + dir.z * +100))
"""if not self.plane.is_parallel(dir):
d = ((self.plane.origin - pos).dot(self.plane.normal)) / self.plane.normal.dot(dir)
if d >= 0:
point = pos + (dir*d)
self.lines.append((point.x, point.y, point.z-2000))
self.lines.append((point.x, point.y, point.z+2000))"""
self.do_redraw()