Example #1
0
    def addBox(self, box, colour=None, opacity=1.):
        if not Visualiser.VISUALISER_ON:
            return
        if isinstance(box, Box):
            if colour is None:
                colour = visual.color.red
            
            org = transform_point(box.origin, box.transform)
            ext = transform_point(box.extent, box.transform)
            print("Visualiser: box origin=%s, extent=%s" % (str(org), str(ext)))
            size = np.abs(ext - org)
            
            pos = org + 0.5*size
            print("Visualiser: box position=%s, size=%s" % (str(pos), str(size)))
            angle, direction, point = tf.rotation_from_matrix(box.transform)
            print("colour,", colour)
            pos = visual.vec(*pos.tolist())
            size = visual.vec(*size.tolist())

            try:
                colour = visual.vec(*colour)
            except:
                pass

            #visual.box(pos=pos, size=size, opacity=opacity, color=None)
            visual.box(pos=pos, size=size, color=colour, opacity=opacity)
Example #2
0
 def addFinitePlane(self, plane, colour=None, opacity=1.):
     if not Visualiser.VISUALISER_ON:
         return
     if isinstance(plane, FinitePlane):
         if colour == None:
             colour = visual.color.blue
         # visual doesn't support planes, so we draw a very thin box
         H = .001
         pos = (plane.length/2, plane.width/2, H/2)
         pos = transform_point(pos, plane.transform)
         size = (plane.length, plane.width, H)
         axis = transform_direction((0,0,1), plane.transform)
         visual.box(pos=visual.vec(pos), size=size, color=colour, opacity=opacity)
Example #3
0
 def addCylinder(self, cylinder, colour=None, opacity=1.):
     if not Visualiser.VISUALISER_ON:
         return
     if colour == None:
         colour = visual.color.blue
     #angle, direction, point = tf.rotation_from_matrix(cylinder.transform)
     #axis = direction * cylinder.length
     position = transform_point([0,0,0], cylinder.transform)
     axis = transform_direction([0,0,1], cylinder.transform)
     print(cylinder.transform, "Cylinder:transform")
     print(position, "Cylinder:position")
     print(axis, "Cylinder:axis")
     print(colour, "Cylinder:colour")
     print(cylinder.radius, "Cylinder:radius")
     pos = vec(*tuple(position))
     visual.cylinder(pos=pos, axis=axis, color=colour, radius=cylinder.radius, opacity=opacity, length = cylinder.length)
Example #4
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id
        photon.id = self.throw
        self.throw = self.throw + 1
        # Create a point which is on the surface of the finite plane in it's local frame
        x = np.random.uniform(0., self.length)
        y = np.random.uniform(0., self.width)
        local_point = (x, y, 0.)

        # Transform the direciton
        photon.position = transform_point(local_point, self.plane.transform)
        photon.direction = self.direction
        photon.active = True
        if self.spectrum != None:
            photon.wavelength = self.spectrum.wavelength_at_probability(
                np.random.uniform())
        else:
            photon.wavelength = self.wavelength
        return photon
Example #5
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id
        photon.id = self.throw
        self.throw += 1

        # This does not work, since the area element scales with Sin(theta) d theta d phi
        # See  http://mathworld.wolfram.com/SpherePointPicking.html
        # Reimplementing the Randomizer

        phi = np.random.uniform(self.phi_min, self.phi_max)
        # theta = np.random.uniform(self.theta_min, self.theta_max)

        theta = -1
        while theta > self.theta_max or theta < self.theta_min:
            theta = np.arccos(2 * np.random.uniform(0, 1) - 1)

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        direction = (x, y, z)

        transform = tf.translation_matrix((0, 0, 0))
        point = transform_point(self.center, transform)

        photon.direction = direction
        photon.position = point

        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(
                np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw) + ')')
        self.throw += 1
        return photon
Example #6
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id

        # Position of emission
        phi = np.random.uniform(0., 2 * np.pi)
        r = np.random.uniform(0., self.radius)

        x = r * np.cos(phi)
        y = r * np.sin(phi)
        z = np.random.uniform(0., self.length)
        local_center = (x, y, z)

        photon.position = transform_point(local_center, self.shape.transform)

        # Direction of emission (no need to transform if meant to be isotropic)
        phi = np.random.uniform(0., 2 * np.pi)
        theta = np.random.uniform(0., np.pi)

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        local_direction = (x, y, z)

        photon.direction = local_direction

        # Set wavelength of photon
        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(
                np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        # Further initialisation
        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw) + ')')
        self.throw += 1
        return photon
Example #7
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id
        photon.id = self.throw
        self.throw += 1
        
        # This does not work, since the area element scales with Sin(theta) d theta d phi
        # See  http://mathworld.wolfram.com/SpherePointPicking.html
        # Reimplementing the Randomizer

        phi = np.random.uniform(self.phi_min, self.phi_max)
        # theta = np.random.uniform(self.theta_min, self.theta_max)
        
        theta = -1
        while theta > self.theta_max or theta < self.theta_min:
            theta = np.arccos(2 * np.random.uniform(0, 1)-1)
        
        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        direction = (x, y, z)

        transform = tf.translation_matrix((0, 0, 0))
        point = transform_point(self.center, transform)

        photon.direction = direction
        photon.position = point

        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw)+')')
        self.throw += 1
        return photon
Example #8
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id

        # Position of emission
        phi = np.random.uniform(0., 2 * np.pi)
        r = np.random.uniform(0., self.radius)

        x = r * np.cos(phi)
        y = r * np.sin(phi)
        z = np.random.uniform(0., self.length)
        local_center = (x, y, z)

        photon.position = transform_point(local_center, self.shape.transform)

        # Direction of emission (no need to transform if meant to be isotropic)
        phi = np.random.uniform(0., 2 * np.pi)
        theta = np.random.uniform(0., np.pi)

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        local_direction = (x, y, z)

        photon.direction = local_direction

        # Set wavelength of photon
        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        # Further initialisation
        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw)+')')
        self.throw += 1
        return photon
Example #9
0
    def photon(self):
        photon = Photon()
        photon.source = self.source_id

        # Create a point which is on the surface of the finite plane in it's local frame
        x = np.random.uniform(0., self.length)
        y = np.random.uniform(0., self.width)
        local_point = (x, y, 0.)

        # Transform the direction
        photon.position = transform_point(local_point, self.plane.transform)
        photon.direction = self.direction
        photon.active = True
        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw)+')')
        self.throw += 1
        return photon
Example #10
0
    def photon(self):
        photon = Photon()

        photon.source = self.source_id

        int_phi = np.random.randint(1, self.spacing + 1)
        int_theta = np.random.randint(1, self.spacing + 1)

        phi = int_phi * (self.phi_max - self.phi_min) / self.spacing
        if self.theta_min == self.theta_max:
            theta = self.theta_min
        else:
            theta = int_theta * (self.theta_max -
                                 self.theta_min) / self.spacing

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        direction = (x, y, z)

        transform = tf.translation_matrix((0, 0, 0))
        point = transform_point(self.center, transform)

        photon.direction = direction
        photon.position = point

        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(
                np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw) + ')')
        self.throw += 1
        return photon
Example #11
0
    def photon(self):
        photon = Photon()

        photon.source = self.source_id
        photon.id = self.throw
        self.throw = self.throw + 1

        intphi = np.random.randint(1, self.spacing + 1)
        inttheta = np.random.randint(1, self.spacing + 1)

        phi = intphi * (self.phimax - self.phimin) / self.spacing
        if self.thetamin == self.thetamax:
            theta = self.thetamin
        else:
            theta = inttheta * (self.thetamax - self.thetamin) / self.spacing

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        direction = (x, y, z)

        transform = tf.translation_matrix((0, 0, 0))
        point = transform_point(self.center, transform)

        photon.direction = direction
        photon.position = point

        if self.spectrum != None:
            photon.wavelength = self.spectrum.wavelength_at_probability(
                np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.active = True

        return photon
Example #12
0
    def photon(self):
        photon = Photon()

        photon.source = self.source_id

        int_phi = np.random.randint(1, self.spacing + 1)
        int_theta = np.random.randint(1, self.spacing + 1)

        phi = int_phi * (self.phi_max - self.phi_min) / self.spacing
        if self.theta_min == self.theta_max:
            theta = self.theta_min
        else:
            theta = int_theta * (self.theta_max - self.theta_min) / self.spacing

        x = np.cos(phi) * np.sin(theta)
        y = np.sin(phi) * np.sin(theta)
        z = np.cos(theta)
        direction = (x, y, z)

        transform = tf.translation_matrix((0, 0, 0))
        point = transform_point(self.center, transform)

        photon.direction = direction
        photon.position = point

        if self.spectrum is not None:
            photon.wavelength = self.spectrum.wavelength_at_probability(np.random.uniform())
        else:
            photon.wavelength = self.wavelength

        photon.active = True

        photon.id = self.throw
        self.log.debug('Emitted photon (pid: ' + str(self.throw)+')')
        self.throw += 1
        return photon