def _calculatePointOnPlane(self, x, y):
far_plane_point = self._zinc_view.unproject(x, -y, -1.0)
near_plane_point = self._zinc_view.unproject(x, -y, 1.0)
point_on_plane = calculateLinePlaneIntersection(
near_plane_point, far_plane_point, self._plane.getRotationPoint(),
self._plane.getNormal())
return point_on_plane
def mouseMoveEvent(self, event):
scene = self._glyph.getScene()
scene.beginChange()
# super(Orientation, self).mouseMoveEvent(event)
if self._glyph.getMaterial().getName(
) == self._selected_material.getName():
x = event.x()
y = event.y()
far_plane_point = self._zinc_view.unproject(x, -y, -1.0)
near_plane_point = self._zinc_view.unproject(x, -y, 1.0)
point_on_plane = calculateLinePlaneIntersection(
near_plane_point, far_plane_point,
self._plane.getRotationPoint(), self._plane.getNormal())
if point_on_plane is not None:
dimensions = self._get_dimension_method()
centroid = calculateCentroid(self._plane.getRotationPoint(),
self._plane.getNormal(),
dimensions)
point_on_plane = boundCoordinatesToCuboid(
point_on_plane, centroid, dimensions)
setGlyphPosition(self._glyph, point_on_plane)
else:
width = self._zinc_view.width()
height = self._zinc_view.height()
radius = min([width, height]) / 2.0
delta_x = float(event.x() - self._previous_mouse_position[0])
delta_y = float(event.y() - self._previous_mouse_position[1])
tangent_dist = sqrt((delta_x * delta_x + delta_y * delta_y))
if tangent_dist > 0.0:
dx = -delta_y / tangent_dist
dy = delta_x / tangent_dist
d = dx * (event.x() - 0.5 *
(width - 1)) + dy * (event.y() - 0.5 * (height - 1))
if d > radius: d = radius
if d < -radius: d = -radius
phi = acos(d / radius) - 0.5 * pi
angle = 1.0 * tangent_dist / radius
eye, lookat, up, _ = self._zinc_view.getViewParameters()
b = up[:]
b = normalize(b)
a = sub(lookat, eye)
a = normalize(a)
c = cross(b, a)
c = normalize(c)
e = [None, None, None]
e[0] = dx * c[0] + dy * b[0]
e[1] = dx * c[1] + dy * b[1]
e[2] = dx * c[2] + dy * b[2]
axis = [None, None, None]
axis[0] = sin(phi) * a[0] + cos(phi) * e[0]
axis[1] = sin(phi) * a[1] + cos(phi) * e[1]
axis[2] = sin(phi) * a[2] + cos(phi) * e[2]
plane_normal = self._plane.getNormal()
point_on_plane = self._plane.getRotationPoint()
plane_normal_prime_1 = mult(plane_normal, cos(angle))
plane_normal_prime_2 = mult(
plane_normal,
dot(plane_normal, axis) * (1 - cos(angle)))
plane_normal_prime_3 = mult(cross(axis, plane_normal),
sin(angle))
plane_normal_prime = add(
add(plane_normal_prime_1, plane_normal_prime_2),
plane_normal_prime_3)
self._plane.setPlaneEquation(plane_normal_prime,
point_on_plane)
self._previous_mouse_position = [event.x(), event.y()]
scene.endChange()
def mouseMoveEvent(self, event):
scene = self._glyph.getScene()
scene.beginChange()
# super(Orientation, self).mouseMoveEvent(event)
if self._glyph.getMaterial().getName() == self._selected_material.getName():
x = event.x()
y = event.y()
far_plane_point = self._zinc_view.unproject(x, -y, -1.0)
near_plane_point = self._zinc_view.unproject(x, -y, 1.0)
point_on_plane = calculateLinePlaneIntersection(near_plane_point, far_plane_point, self._plane.getRotationPoint(), self._plane.getNormal())
if point_on_plane is not None:
dimensions = self._get_dimension_method()
centroid = calculateCentroid(self._plane.getRotationPoint(), self._plane.getNormal(), dimensions)
point_on_plane = boundCoordinatesToCuboid(point_on_plane, centroid, dimensions)
setGlyphPosition(self._glyph, point_on_plane)
else:
width = self._zinc_view.width()
height = self._zinc_view.height()
radius = min([width, height]) / 2.0
delta_x = float(event.x() - self._previous_mouse_position[0])
delta_y = float(event.y() - self._previous_mouse_position[1])
tangent_dist = sqrt((delta_x * delta_x + delta_y * delta_y))
if tangent_dist > 0.0:
dx = -delta_y / tangent_dist;
dy = delta_x / tangent_dist;
d = dx * (event.x() - 0.5 * (width - 1)) + dy * ((event.y() - 0.5 * (height - 1)))
if d > radius: d = radius
if d < -radius: d = -radius
phi = acos(d / radius) - 0.5 * pi
angle = 1.0 * tangent_dist / radius
eye, lookat, up, _ = self._zinc_view.getViewParameters()
b = up[:]
b = normalize(b)
a = sub(lookat, eye)
a = normalize(a)
c = cross(b, a)
c = normalize(c)
e = [None, None, None]
e[0] = dx * c[0] + dy * b[0]
e[1] = dx * c[1] + dy * b[1]
e[2] = dx * c[2] + dy * b[2]
axis = [None, None, None]
axis[0] = sin(phi) * a[0] + cos(phi) * e[0]
axis[1] = sin(phi) * a[1] + cos(phi) * e[1]
axis[2] = sin(phi) * a[2] + cos(phi) * e[2]
plane_normal = self._plane.getNormal()
point_on_plane = self._plane.getRotationPoint()
plane_normal_prime_1 = mult(plane_normal, cos(angle))
plane_normal_prime_2 = mult(plane_normal, dot(plane_normal, axis) * (1 - cos(angle)))
plane_normal_prime_3 = mult(cross(axis, plane_normal), sin(angle))
plane_normal_prime = add(add(plane_normal_prime_1, plane_normal_prime_2), plane_normal_prime_3)
self._plane.setPlaneEquation(plane_normal_prime, point_on_plane)
self._previous_mouse_position = [event.x(), event.y()]
scene.endChange()
def _calculatePointOnPlane(self, x, y):
far_plane_point = self._zinc_view.unproject(x, -y, -1.0)
near_plane_point = self._zinc_view.unproject(x, -y, 1.0)
point_on_plane = calculateLinePlaneIntersection(near_plane_point, far_plane_point, self._plane.getRotationPoint(), self._plane.getNormal())
return point_on_plane