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# 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 script displays the different items of :class:`~silx.gui.plot3d.SceneWindow`.
It shows the different visualizations of :class:`~silx.gui.plot3d.SceneWindow`
and :class:`~silx.gui.plot3d.SceneWidget`.
It illustrates the API to set those items.
It features:
- 2D images: data and RGBA images
- 2D scatter data, displayed either as markers, wireframe or surface.
- 3D scatter plot
- 3D scalar field with iso-surface and cutting plane.
- A clipping plane.
"""
from __future__ import absolute_import
__authors__ = ["T. Vincent"]
__license__ = "MIT"
__date__ = "17/11/2017"
import sys
import numpy
from silx.gui import qt
from silx.gui.plot3d.SceneWindow import SceneWindow, items
from silx.gui.plot3d.tools.PositionInfoWidget import PositionInfoWidget
from silx.gui.widgets.BoxLayoutDockWidget import BoxLayoutDockWidget
SIZE = 1024
# Create QApplication
qapp = qt.QApplication([])
# Create a SceneWindow widget
window = SceneWindow()
# Get the SceneWidget contained in the window and set its colors
sceneWidget = window.getSceneWidget()
sceneWidget.setBackgroundColor((0.8, 0.8, 0.8, 1.))
sceneWidget.setForegroundColor((1., 1., 1., 1.))
sceneWidget.setTextColor((0.1, 0.1, 0.1, 1.))
# Add PositionInfoWidget to display picking info
positionInfo = PositionInfoWidget()
positionInfo.setSceneWidget(sceneWidget)
dock = BoxLayoutDockWidget()
dock.setWindowTitle("Selection Info")
dock.setWidget(positionInfo)
window.addDockWidget(qt.Qt.BottomDockWidgetArea, dock)
# 2D Image ###
# Add a dummy RGBA image
img = numpy.random.random(3 * SIZE ** 2).reshape(SIZE, SIZE, 3) # Dummy image
imageRgba = sceneWidget.addImage(img) # Add ImageRgba item to the scene
# Set imageRgba transform
imageRgba.setTranslation(SIZE*.15, SIZE*.15, 0.) # Translate the image
# Rotate the image by 45 degrees around its center
imageRgba.setRotationCenter('center', 'center', 0.)
imageRgba.setRotation(45., axis=(0., 0., 1.))
imageRgba.setScale(0.7, 0.7, 0.7) # Scale down image
# Add a data image
data = numpy.arange(SIZE ** 2).reshape(SIZE, SIZE) # Dummy data
imageData = sceneWidget.addImage(data) # Add ImageData item to the scene
# Set imageData transform
imageData.setTranslation(0., SIZE, 0.) # Translate the image
# Set imageData properties
imageData.setInterpolation('linear') # 'linear' or 'nearest' interpolation
imageData.getColormap().setName('magma') # Use magma colormap
# 2D scatter data ###
# Create 2D scatter dummy data
x = numpy.random.random(10 ** 3)
y = numpy.random.random(len(x))
values = numpy.exp(- 11. * ((x - .5) ** 2 + (y - .5) ** 2))
# Add 2D scatter data with 6 different visualisations
for row, heightMap in enumerate((False, True)):
for col, mode in enumerate(('points', 'lines', 'solid')):
# Add a new scatter
item = sceneWidget.add2DScatter(x, y, values)
# Set 2D scatter item tranform
item.setTranslation(SIZE + col * SIZE, row * SIZE, 0.)
item.setScale(SIZE, SIZE, SIZE)
# Set 2D scatter item properties
item.setHeightMap(heightMap)
item.setVisualization(mode)
item.getColormap().setName('viridis')
item.setLineWidth(2.)
# Group ###
# Create a group item and add it to the scene
# The group children share the group transform
group = items.GroupItem() # Create a new group item
group.setTranslation(SIZE * 4, 0., 0.) # Translate the group
# Clipping plane ###
# Add a clipping plane to the group (and thus to the scene)
# This item hides part of other items in the half space defined by the plane.
# Clipped items are those belonging to the same group (i.e., brothers) that
# comes after the clipping plane.
clipPlane = items.ClipPlane() # Create a new clipping plane item
clipPlane.setNormal((1., -0.35, 0.)) # Set its normal
clipPlane.setPoint((0., 0., 0.)) # Set a point on the plane
group.addItem(clipPlane) # Add clipping plane to the group
# 3D scatter data ###
# Create dummy data
x = numpy.random.random(10**3)
y = numpy.random.random(len(x))
z = numpy.random.random(len(x))
values = numpy.random.random(len(x))
# Create a 3D scatter item and set its data
scatter3d = items.Scatter3D()
scatter3d.setData(x, y, z, values)
# Set scatter3d transform
scatter3d.setScale(SIZE, SIZE, SIZE)
# Set scatter3d properties
scatter3d.getColormap().setName('magma') # Use 'magma' colormap
scatter3d.setSymbol('d') # Use diamond markers
scatter3d.setSymbolSize(11) # Set the size of the markers
# Add scatter3d to the group (and thus to the scene)
group.addItem(scatter3d)
# 3D scalar volume ###
# Create dummy 3D array data
x, y, z = numpy.meshgrid(numpy.linspace(-10, 10, 64),
numpy.linspace(-10, 10, 64),
numpy.linspace(-10, 10, 64))
data = numpy.sin(x * y * z) / (x * y * z)
# Create a 3D scalar field item and set its data
volume = items.ScalarField3D() # Create a new 3D volume item
volume.setData(data) # Set its data
group.addItem(volume) # Add it to the group (and thus to the scene)
# Set volume tranform
volume.setTranslation(0., SIZE, 0.)
volume.setScale(SIZE/data.shape[2], SIZE/data.shape[1], SIZE/data.shape[0])
# Add isosurfaces to the volume item given isolevel and color
volume.addIsosurface(0.2, '#FF000080')
volume.addIsosurface(0.5, '#0000FFFF')
# Set the volume cut plane
cutPlane = volume.getCutPlanes()[0] # Get the volume's cut plane
cutPlane.setVisible(True) # Set it to be visible
cutPlane.getColormap().setName('jet') # Set cut plane's colormap
cutPlane.setNormal((0., 0., 1.)) # Set cut plane's normal
cutPlane.moveToCenter() # Place the cut plane at the center of the volume
sceneWidget.addItem(group) # Add the group as an item of the scene
# Show the SceneWidget widget
window.show()
# Display exception in a pop-up message box
sys.excepthook = qt.exceptionHandler
# Run Qt event loop
qapp.exec_()
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