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Diffstat (limited to 'src/silx/gui/plot3d/actions/viewpoint.py')
| -rw-r--r-- | src/silx/gui/plot3d/actions/viewpoint.py | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/silx/gui/plot3d/actions/viewpoint.py b/src/silx/gui/plot3d/actions/viewpoint.py new file mode 100644 index 0000000..d764c40 --- /dev/null +++ b/src/silx/gui/plot3d/actions/viewpoint.py @@ -0,0 +1,231 @@ +# coding: utf-8 +# /*########################################################################## +# +# Copyright (c) 2017-2018 European Synchrotron Radiation Facility +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. +# +# ###########################################################################*/ +"""This module provides Plot3DAction controlling the viewpoint. + +It provides QAction to rotate or pan a Plot3DWidget. +""" + +from __future__ import absolute_import, division + +__authors__ = ["T. Vincent"] +__license__ = "MIT" +__date__ = "03/10/2017" + + +import time +import logging + +from silx.gui import qt +from silx.gui.icons import getQIcon +from .Plot3DAction import Plot3DAction + + +_logger = logging.getLogger(__name__) + + +class _SetViewpointAction(Plot3DAction): + """Base class for actions setting a Plot3DWidget viewpoint + + :param parent: See :class:`QAction` + :param str face: The name of the predefined viewpoint + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, face, plot3d=None): + super(_SetViewpointAction, self).__init__(parent, plot3d) + assert face in ('side', 'front', 'back', 'left', 'right', 'top', 'bottom') + self._face = face + + self.setIconVisibleInMenu(True) + self.setCheckable(False) + self.triggered[bool].connect(self._triggered) + + def _triggered(self, checked=False): + plot3d = self.getPlot3DWidget() + if plot3d is None: + _logger.error( + 'Cannot start/stop rotation, no associated Plot3DWidget') + else: + plot3d.viewport.camera.extrinsic.reset(face=self._face) + plot3d.centerScene() + + +class FrontViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the front + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(FrontViewpointAction, self).__init__(parent, 'front', plot3d) + + self.setIcon(getQIcon('cube-front')) + self.setText('Front') + self.setToolTip('View along the -Z axis') + + +class BackViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the back + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(BackViewpointAction, self).__init__(parent, 'back', plot3d) + + self.setIcon(getQIcon('cube-back')) + self.setText('Back') + self.setToolTip('View along the +Z axis') + + +class LeftViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the left + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(LeftViewpointAction, self).__init__(parent, 'left', plot3d) + + self.setIcon(getQIcon('cube-left')) + self.setText('Left') + self.setToolTip('View along the +X axis') + + +class RightViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the right + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(RightViewpointAction, self).__init__(parent, 'right', plot3d) + + self.setIcon(getQIcon('cube-right')) + self.setText('Right') + self.setToolTip('View along the -X axis') + + +class TopViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the top + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(TopViewpointAction, self).__init__(parent, 'top', plot3d) + + self.setIcon(getQIcon('cube-top')) + self.setText('Top') + self.setToolTip('View along the -Y axis') + + +class BottomViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the bottom + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(BottomViewpointAction, self).__init__(parent, 'bottom', plot3d) + + self.setIcon(getQIcon('cube-bottom')) + self.setText('Bottom') + self.setToolTip('View along the +Y axis') + + +class SideViewpointAction(_SetViewpointAction): + """QAction to set Plot3DWidget viewpoint to look from the side + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + def __init__(self, parent, plot3d=None): + super(SideViewpointAction, self).__init__(parent, 'side', plot3d) + + self.setIcon(getQIcon('cube')) + self.setText('Side') + self.setToolTip('Side view') + + +class RotateViewpoint(Plot3DAction): + """QAction to rotate the scene of a Plot3DWidget + + :param parent: See :class:`QAction` + :param ~silx.gui.plot3d.Plot3DWidget.Plot3DWidget plot3d: + Plot3DWidget the action is associated with + """ + + _TIMEOUT_MS = 50 + """Time interval between to frames (in milliseconds)""" + + _DEGREE_PER_SECONDS = 360. / 5. + """Rotation speed of the animation""" + + def __init__(self, parent, plot3d=None): + super(RotateViewpoint, self).__init__(parent, plot3d) + + self._previousTime = None + + self._timer = qt.QTimer(self) + self._timer.setInterval(self._TIMEOUT_MS) # 20fps + self._timer.timeout.connect(self._rotate) + + self.setIcon(getQIcon('cube-rotate')) + self.setText('Rotate scene') + self.setToolTip('Rotate the 3D scene around the vertical axis') + self.setCheckable(True) + self.triggered[bool].connect(self._triggered) + + + def _triggered(self, checked=False): + plot3d = self.getPlot3DWidget() + if plot3d is None: + _logger.error( + 'Cannot start/stop rotation, no associated Plot3DWidget') + elif checked: + self._previousTime = time.time() + self._timer.start() + else: + self._timer.stop() + self._previousTime = None + + def _rotate(self): + """Perform a step of the rotation""" + if self._previousTime is None: + _logger.error('Previous time not set!') + angleStep = 0. + else: + angleStep = self._DEGREE_PER_SECONDS * (time.time() - self._previousTime) + + self.getPlot3DWidget().viewport.orbitCamera('left', angleStep) + self._previousTime = time.time() |