def on_grab(self, states):
grabbing = []
# Check both hands
for hand in self.hands:
thumb_position = hand.thumb.position
# Check index and middle fingers as well
for finger in (hand.index, hand.middle):
# If thumb's and the finger's distance
# is beyond the grabbing-release-range
if not distance(thumb_position,
finger.position) < GRAB_RELEASE_DISTANCE:
# Set state and stop checking the other finger
hand.set_states(grabbed=False)
break
# If both fingers are in the range of grabbing-release-range
else:
# Set state, and collect hand in the grabbing-hands list
grabbing.append(hand)
hand.set_states(grabbed=True)
# If both hands are grabbing
try:
# Get hands separately
left_hand, right_hand = grabbing
# Color thumbs and hide other fingers, so it won't confuse the user
left_hand.thumb.color = right_hand.thumb.color = COLOR_ROTATE_PINCH_OKAY
left_hand.hide_all('thumb')
right_hand.hide_all('thumb')
# Get the thumb positionS
ltp = left_hand.thumb.position
rtp = right_hand.thumb.position
# Get essentaial informations about the current state
curr_grab_vector = Vec3.from_line(ltp[0], ltp[1], ltp[2], rtp[0],
rtp[1], rtp[2])
curr_grab_length = curr_grab_vector.length
curr_grab_vector = curr_grab_vector.normalize()
# If this grab is part of a previous grab-cycle
try:
rotation = Matrix(
tuple(
rotation_matrix_from_vectors(
self._dual_grab_vector,
curr_grab_vector))).to_euler()
rotation = -rotation[0], -rotation[1], -rotation[2]
# Rotate parent object of all vertices
#self.vertex_origo.applyRotation(rotation)
self._armature_control.applyRotation(rotation)
self._armature.applyRotation(rotation)
#self._geometry.applyRotation(rotation)
# Scale the parent object
try:
scale = 1 / (self._dual_grab_length / curr_grab_length)
self._zoomed_pick_distance *= scale
self.vertex_origo.worldScale = \
[old*new for old, new in zip(self.vertex_origo.worldScale, repeat(scale))]
except ZeroDivisionError:
pass
# Update geometry
self.surface.update()
# If this grab is a new grab-cycle
except TypeError:
pass
# Store current values as previous ones for the next cycle
self._dual_grab_vector = curr_grab_vector
self._dual_grab_length = curr_grab_length
self._is_dual_grabbed = True
except ValueError:
# If only one hand is grabbing
try:
hand = grabbing[0]
curr = tuple(hand.thumb.position)
prev = self._grab_position
hand.hide_all('thumb')
hand.thumb.color = COLOR_GRAB_MOVE_OKAY
# If this is a mistaken single grab (one hand released accidentaly)
if self._is_dual_grabbed:
return
# If this is the first cycle of a single grab
if not self._is_grabbed:
self._is_grabbed = True
self._grab_start = {
id: tuple(v.localPosition)
for id, v in self.surface.selected()
}
# If this grab is part of a previous grab-cycle
try:
# Calculate vector between previous
# and current thumb positions
movement = Vec3.from_line(prev[0], prev[1], prev[2],
curr[0], curr[1], curr[2])
# Move all selected vertices
for _, vertex in self.surface.selected():
vertex.applyMovement(movement)
# Update geometry
self.surface.update()
# If this grab is starting a new grab-cycle
except TypeError:
pass
# Store current position as previous one for the next cycle
self._grab_position = curr
# If none of the hands are grabbing
except IndexError:
if not self._is_picked:
self.hands.show_all()
# If this release is the end of a grab cycle
if self._is_grabbed:
start = self._grab_start
stop = {
id: tuple(v.localPosition)
for id, v in self.surface.selected()
}
# Create events
@History.event
def move_back_vertices(direction, prefix):
surface = self.surface
# Move all selected vertices
for identifier, position in start.items():
# If opponent user is not using them
if not surface.is_locked(identifier):
surface[identifier].localPosition = position
# Update geometry
surface.update()
self.text.write(
'{PREFIX}Vertices moved to position'.format(
PREFIX=prefix))
@History.event
def move_vertices(direction, prefix):
surface = self.surface
# Move all selected vertices
for identifier, position in stop.items():
# If opponent user is not using them
if not surface.is_locked(identifier):
surface[identifier].localPosition = position
# Update geometry
surface.update()
self.text.write(
'{PREFIX}Vertices moved to position'.format(
PREFIX=prefix))
# Save events
self._history.push(undo=move_back_vertices,
redo=move_vertices)
self._grab_position = \
self._dual_grab_vector = \
self._dual_grab_length = None
self._is_grabbed = \
self._is_dual_grabbed = False
def on_grab(self, states):
grabbing = []
# Check both hands
for hand in self.hands:
thumb_position = hand.thumb.position
# Check index and middle fingers as well
for finger in (hand.index,
hand.middle):
# If thumb's and the finger's distance
# is beyond the grabbing-release-range
if not distance(thumb_position,
finger.position) < GRAB_RELEASE_DISTANCE:
# Set state and stop checking the other finger
hand.set_states(grabbed=False)
break
# If both fingers are in the range of grabbing-release-range
else:
# Set state, and collect hand in the grabbing-hands list
grabbing.append(hand)
hand.set_states(grabbed=True)
# If both hands are grabbing
try:
# Get hands separately
left_hand, right_hand = grabbing
# Color thumbs and hide other fingers, so it won't confuse the user
left_hand.thumb.color = right_hand.thumb.color = COLOR_ROTATE_PINCH_OKAY
left_hand.hide_all('thumb')
right_hand.hide_all('thumb')
# Get the thumb positionS
ltp = left_hand.thumb.position
rtp = right_hand.thumb.position
# Get essentaial informations about the current state
curr_grab_vector = Vec3.from_line(ltp[0], ltp[1], ltp[2],
rtp[0], rtp[1], rtp[2])
curr_grab_length = curr_grab_vector.length
curr_grab_vector = curr_grab_vector.normalize()
# If this grab is part of a previous grab-cycle
try:
rotation = Matrix(tuple(rotation_matrix_from_vectors(self._dual_grab_vector,
curr_grab_vector))).to_euler()
rotation = -rotation[0], -rotation[1], -rotation[2]
# Rotate parent object of all vertices
#self.vertex_origo.applyRotation(rotation)
self._armature_control.applyRotation(rotation)
self._armature.applyRotation(rotation)
#self._geometry.applyRotation(rotation)
# Scale the parent object
try:
scale = 1/(self._dual_grab_length/curr_grab_length)
self._zoomed_pick_distance *= scale
self.vertex_origo.worldScale = \
[old*new for old, new in zip(self.vertex_origo.worldScale, repeat(scale))]
except ZeroDivisionError:
pass
# Update geometry
self.surface.update()
# If this grab is a new grab-cycle
except TypeError:
pass
# Store current values as previous ones for the next cycle
self._dual_grab_vector = curr_grab_vector
self._dual_grab_length = curr_grab_length
self._is_dual_grabbed = True
except ValueError:
# If only one hand is grabbing
try:
hand = grabbing[0]
curr = tuple(hand.thumb.position)
prev = self._grab_position
hand.hide_all('thumb')
hand.thumb.color = COLOR_GRAB_MOVE_OKAY
# If this is a mistaken single grab (one hand released accidentaly)
if self._is_dual_grabbed:
return
# If this is the first cycle of a single grab
if not self._is_grabbed:
self._is_grabbed = True
self._grab_start = {id: tuple(v.localPosition) for id, v in self.surface.selected()}
# If this grab is part of a previous grab-cycle
try:
# Calculate vector between previous
# and current thumb positions
movement = Vec3.from_line(prev[0], prev[1], prev[2],
curr[0], curr[1], curr[2])
# Move all selected vertices
for _, vertex in self.surface.selected():
vertex.applyMovement(movement)
# Update geometry
self.surface.update()
# If this grab is starting a new grab-cycle
except TypeError:
pass
# Store current position as previous one for the next cycle
self._grab_position = curr
# If none of the hands are grabbing
except IndexError:
if not self._is_picked:
self.hands.show_all()
# If this release is the end of a grab cycle
if self._is_grabbed:
start = self._grab_start
stop = {id: tuple(v.localPosition) for id, v in self.surface.selected()}
# Create events
@History.event
def move_back_vertices(direction, prefix):
surface = self.surface
# Move all selected vertices
for identifier, position in start.items():
# If opponent user is not using them
if not surface.is_locked(identifier):
surface[identifier].localPosition = position
# Update geometry
surface.update()
self.text.write('{PREFIX}Vertices moved to position'.format(PREFIX=prefix))
@History.event
def move_vertices(direction, prefix):
surface = self.surface
# Move all selected vertices
for identifier, position in stop.items():
# If opponent user is not using them
if not surface.is_locked(identifier):
surface[identifier].localPosition = position
# Update geometry
surface.update()
self.text.write('{PREFIX}Vertices moved to position'.format(PREFIX=prefix))
# Save events
self._history.push(undo=move_back_vertices,
redo=move_vertices)
self._grab_position = \
self._dual_grab_vector = \
self._dual_grab_length = None
self._is_grabbed = \
self._is_dual_grabbed = False
## (at your option) any later version. ##
## ##
## This program is distributed in the hope that it will be useful, but ##
## WITHOUT ANY WARRANTY; without even the implied warranty of ##
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ##
## See the GNU General Public License for more details. ##
## ##
## You should have received a copy of the GNU General Public License ##
## along with this program, most likely a file in the root directory, ##
## called 'LICENSE'. If not, see <http://www.gnu.org/licenses>. ##
## ##
######################################################################## INFO ##
from linmath import Vec3, Mat4x4
v1 = Vec3(1, 2, 3)
v2 = Vec3(4, 5, 6)
print(v1)
print(v2)
print(v1 + v2)
print(*v1)
print(*v2)
print(tuple(v1), tuple(v2))
for f in v1 + v2:
print(f)
print(v1, v1.normalize())
print(Vec3.from_line(*(tuple(v1) + tuple(v2))).normalize())
v1 = Vec3(1, 2, 3)
v2 = Vec3(4, 5, 6)
print(v1)
print(v2)
print(v1 + v2)
print(*v1)
print(*v2)
print(tuple(v1), tuple(v2))
for f in v1 + v2:
print(f)
print(v1, v1.normalize())
print(Vec3.from_line(*(tuple(v1) + tuple(v2))).normalize())
print(v1.x, v1.y, v1.z)
print(Vec3.from_line(x1=1, y2=1).normalize().length)
print(v1.length)
print(v1.reflect(v2).normalize() * 2)
#------------------------------------------------------------------------------#
print('-'*80)
m1 = Mat4x4((-2, 5, 88, 0),
(56, 17, 9, -1),
(-1, -1, 78, 9),
( 7, 3, 8, 1))