def move_by(self, relindex):
# don't i recall code similar to this somewhere? yes, BaseIterator.py - stub, not yet used
self.index += self.direction * relindex
self.off_end = False # be optimistic, we might be back on if we were off
assert 0 # LOGIC BUG: if rail dirs alternate as we move, then the following conds alternate too --
# we're not always in the same loop below!! (better find out if i need to write it this way
# or only as the scanner which yields the atoms -- might be easier that way) ### DECIDE
while self.index < 0 and not self.off_end:
self._move_to_prior_rail(sign(relindex))
while self.index >= len(self.rail) and not self.off_end:
self._move_to_next_rail(sign(relindex))
return
def sign_with_threshhold( num, thresh ):
"""
Return -1, 0, or 1 as num is << 0, close to 0, or >> 0,
where "close to 0" means abs(num) <= thresh.
"""
if abs(num) <= thresh:
return 0
return sign(num)
def sign_with_threshhold(num, thresh):
"""
Return -1, 0, or 1 as num is << 0, close to 0, or >> 0,
where "close to 0" means abs(num) <= thresh.
"""
if abs(num) <= thresh:
return 0
return sign(num)
def leftDragRotation(self, event):
"""
Rotate the selected object(s) or slide and rotate along the an axis
@param event: The mouse left drag event.
@type event: QMouseEvent object
@see: self.leftDrag
"""
if self.command and self.command.propMgr and \
hasattr(self.command.propMgr, 'rotateComboBox'):
if self.command.propMgr.rotateComboBox.currentText() != "Free Drag":
return
if self.rotateOption == 'ROTATEDEFAULT':
self.leftDragFreeRotation(event)
return
if self.rotateOption == 'ROT_TRANS_ALONG_AXIS':
try:
self.leftADrag(event)
except:
print_compact_traceback(" error doing leftADrag")
return
#Rotate section
w=self.o.width+0.0
h=self.o.height+0.0
deltaMouse = V(event.pos().x() - self.o.MousePos[0],
self.o.MousePos[1] - event.pos().y())
a = dot(self.Zmat, deltaMouse)
dx,dy = a * V(self.o.scale/(h*0.5), 2*math.pi/w)
if self.rotateOption == 'ROTATEX':
ma = V(1,0,0) # X Axis
elif self.rotateOption == 'ROTATEY':
ma = V(0,1,0) # Y Axis
elif self.rotateOption == 'ROTATEZ':
ma = V(0,0,1) # Z Axis
else:
print "rotateChunks_GraphicsMode.leftDrag Error: unknown rotateOption value:",\
self.rotateOption
return
qrot = Q(ma,-dy) # Quat for rotation delta.
# Increment rotation delta (and convert to degrees)
self.rotDelta += qrot.angle *180.0/math.pi * sign(dy)
if self.command and self.command.propMgr and \
hasattr(self.command.propMgr, 'updateRotationDeltaLabels'):
self.command.propMgr.updateRotationDeltaLabels(self.rotateOption,
self.rotDelta)
self.win.assy.rotateSpecifiedMovables(qrot,
movables = self._leftDrag_movables)
# Print status bar msg indicating the current rotation delta.
if self.o.assy.selmols:
msg = "%s delta: [0 Angstroms] [%.2f Degrees]" % (self.axis,
self.rotDelta)
env.history.statusbar_msg(msg)
# common finished code
self.dragdist += vlen(deltaMouse)
self.o.SaveMouse(event)
self.o.gl_update()
#End of Rotate Section
return
