def getEditor(self, parent):
if not NurbsObjectEditor: return None
editor = NurbsObjectEditor(parent, 3)
editor.view.camera().setPosition(Vec(1, 0, 0.5))
editor.view.camera().setUpVector(Vec(0, 0, 1))
editor.view.camera().setViewDirection(Vec(-1, 0, 0))
editor.view.camera().fitSphere(Vec(0, 0, 0.5), 0.8)
return editor
def __init__(self, parent=None):
QGLViewer.__init__(self, parent)
self.scene = None
self.discretizer = Discretizer()
self.glrenderer = GLRenderer(self.discretizer)
self.bboxcomputer = BBoxComputer(self.discretizer)
self.animationMode = eStatic
self.forceclear = True
self.camera().setViewDirection(Vec(-1, 0, 0))
self.camera().setUpVector(Vec(0, 0, 1))
def init(self):
self.camera().setUpVector(Vec(0, 1, 0))
self.camera().setType(Camera.ORTHOGRAPHIC)
self.camConstraint = WorldConstraint()
self.camera().frame().setConstraint(self.camConstraint)
self.camera().setZClippingCoefficient(4) #arbitrary.
self.showEntireScene()
def __init__(self,
parent=None,
scene=None,
statefilename='.temp_scene.xml',
shareWidget=None):
QGLViewer.__init__(self, parent, shareWidget)
self.set_bg_white()
# set the scene
if scene == None:
scene = self.defaultScene()
self.scene = scene
# set some parameters
self.setAxisIsDrawn(False) # show axis
self.setGridIsDrawn(True) # show grid
orientation = Quaternion(0.475117, 0.472505, 0.524479, 0.525286)
position = Vec(2.91287, -0.0109797, 0.659613)
self.camera().setPosition(position)
self.camera().setOrientation(orientation)
self.camera().setSceneRadius(1) # Size of vectors x,y,z
# connection
self.connect(self, QtCore.SIGNAL("drawNeeded()"), self.draw)
self.orientation_initiale = self.camera().orientation()
self.position_initiale = self.camera().position()
# Block "*.xml" save
self.setStateFileName("")
# Disable Quit in clicking on 'Escape'
# Set "show_axis" instead of "kill_application"
self.setShortcut(0, QtCore.Qt.Key_Escape)
def mouseMoveEvent(self, event):
if self.__oldY is not None:
pos = self.__position
#some values that are used a bit everywhere
newX, newY = event.x(), event.y()
xDiff = float(newX - self.__oldX)
yDiff = float(newY - self.__oldY)
cartDist = sqrt(yDiff**2 + xDiff**2)
mod = event.modifiers()
if mod != QtCore.Qt.ControlModifier:
delta = newY - self.__oldY
if delta > 0:
pos += self.increment
elif delta < 0:
pos -= self.increment
self.__oldY = newY
self.set_position(pos)
elif self.__scalingDirection is None:
if cartDist < 50: #pixels
return
#compute direction coefficient of the mouse pointer to the screen center
if xDiff == 0.0:
return
pA = atan2(yDiff, xDiff)
tol = self._axisScaleTolerance
#compute projected direction coefficients of axes
camera = self.camera()
origin = camera.getProjectedCoordinatesOf(Vec(0., 0., 0.))
xProj = camera.getProjectedCoordinatesOf(Vec(1., 0., 0.))
yProj = camera.getProjectedCoordinatesOf(Vec(0., 1., 0.))
zProj = camera.getProjectedCoordinatesOf(Vec(0., 0., 1.))
xVec = (xProj[0] - origin[0]), (xProj[1] - origin[1])
yVec = (yProj[0] - origin[0]), (yProj[1] - origin[1])
zVec = (zProj[0] - origin[0]), (zProj[1] - origin[1])
#angles
if xVec[0] == 0.0 or yVec[0] == 0.0 or zVec[0] == 0.0:
return
xA = atan(xVec[1] / xVec[0])
yA = atan(yVec[1] / yVec[0])
zA = atan(zVec[1] / zVec[0])
dire = min((abs(xA % pi - pA % pi), 0, pA, xVec),
(abs(yA % pi - pA % pi), 1, pA, yVec),
(abs(zA % pi - pA % pi), 2, pA, zVec))
self.__scalingDirection = dire if (dire[0] <= tol) else None
elif self.__scalingDirection is not None:
angD, dire, angle, vec = self.__scalingDirection
#cartDist is used to obtain a significant difference
#or else computations are screwed.
if xDiff != 0.0 and yDiff != 0 and cartDist > 5:
pA = atan2(yDiff, xDiff)
if pA < 0: pA += 2 * pi
if angle < 0: angle += 2 * pi
angleDiv = int(angle / pi * 2)
mouseDiv = int(pA / pi * 2)
positive = angleDiv == mouseDiv
f = self.factor[dire]
f = f * 1.02 if positive else f * 0.98
self.factor[dire] = f
self.__oldY = newY
self.__oldX = newX
self.update()
else:
QGLViewer.mouseMoveEvent(self, event)