def move(self, x, y):
self.camera -= self.pov
axis = numpy.array(self.axis)[:,0][0:3]
camera = numpy.array(self.camera)[:,0][0:3]
normal = model.normalize(model.normal(axis, camera))
width = 2. * math.tan(self.fov / 2.) * numpy.linalg.norm(camera)
offset = normal * (-x / width) + axis * (-y / width)
rotationMatrix = numpy.matrix([
[1., 0., 0., offset[0]],
[0., 1., 0., offset[1]],
[0., 0., 1., offset[2]],
[0., 0., 0., 1.]])
self.camera += self.pov
self.camera = rotationMatrix * self.camera
self.pov = rotationMatrix * self.pov
def rotate(self, hrot, vrot):
self.camera -= self.pov
if hrot != 0.:
horizRotationMatrix = numpy.matrix([
[math.cos(hrot), -math.sin(hrot), 0., 0.],
[math.sin(hrot), math.cos(hrot), 0., 0.],
[ 0., 0., 1., 0.],
[ 0., 0., 0., 1.]])
self.camera = horizRotationMatrix * self.camera
self.axis = horizRotationMatrix * self.axis
if vrot != 0.:
normal = model.normal(self.camera.getA()[:,0], self.axis.getA()[:,0])
normal = model.normalize(normal)
vertRotationMatrix = model.rotationMatrix(normal, vrot)
self.camera = vertRotationMatrix * self.camera
self.axis = vertRotationMatrix * self.axis
self.camera += self.pov
def getNormal(points):
return model.normalize(model.normal(vertices[points[1]] - vertices[points[0]],
vertices[points[2]] - vertices[points[0]]))
