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gui.py
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gui.py
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from __future__ import print_function
import sys
from matplotlib.figure import Figure
from matplotlib.backend_bases import key_press_handler
from matplotlib.backends.backend_qt4agg import (
FigureCanvasQTAgg as FigureCanvas,
NavigationToolbar2QT as NavigationToolbar)
from matplotlib.backends import qt4_compat
use_pyside = qt4_compat.QT_API == qt4_compat.QT_API_PYSIDE
import numpy
from scipy import misc
from resample import ImageObject
from matplotlib.widgets import Slider, Button, RadioButtons
from matplotlib import gridspec
if use_pyside:
from PySide.QtCore import *
from PySide.QtGui import *
else:
from PyQt4.QtCore import *
from PyQt4.QtGui import *
class AppForm(QMainWindow):
'''
Master GUI. To initialize:
app = QApplication(sys.argv)
form = AppForm()
form.show()
app.exec_()
'''
def __init__(self, parent=None):
QMainWindow.__init__(self, parent)
# Creates GUI framework
self.create_main_frame()
# Plots initial image
self.init_draw()
def create_main_frame(self):
self.main_frame = QWidget()
# Figure parameters.
# FIXME Probably change figure parameters given computer resolution
self.fig = Figure((10.0, 10.0), dpi=100)
self.canvas = FigureCanvas(self.fig)
self.canvas.setParent(self.main_frame)
self.canvas.setFocusPolicy(Qt.StrongFocus)
self.canvas.setFocus()
# Matplotlib move around
# FIXME remove zoom in button
# http://stackoverflow.com/questions/12695678/how-to-modify-the-navigation-toolbar-easily-in-a-matplotlib-figure-window
self.mpl_toolbar = NavigationToolbar(self.canvas, self.main_frame)
# Add figures to GUI
vbox = QVBoxLayout()
vbox.addWidget(self.canvas) # the matplotlib canvas
vbox.addWidget(self.mpl_toolbar)
# Image selection dropdown box
self.image_selection_menu = QComboBox()
self.image_selection_menu.addItem('Galaxy Simulation 1')
self.image_selection_menu.addItem('Galaxy Image 1')
self.image_selection_menu.addItem('Galaxy Image 2')
self.image_selection_menu.addItem('Jupiter Narrow Field Simulation')
self.image_selection_menu.addItem('Jupiter Wide Field Simulation')
self.image_selection_menu.addItem('Star Formation Simulation 1')
self.image_selection_menu.addItem('Star Formation Simulation 2')
self.image_selection_menu.addItem('Star Formation Simulation 3')
self.image_selection_menu.addItem('Star Formation Image 1')
self.image_selection_menu.addItem('Star Formation Image 2')
self.image_selection_menu.activated[str].connect(self.image_selection)
vbox.addWidget(self.image_selection_menu)
# Initialize GUI
self.main_frame.setLayout(vbox)
self.setCentralWidget(self.main_frame)
def init_draw(self):
'''
Sets up all of the matplotlib widgets
'''
self.fig.clear()
# gs = gridspec.GridSpec(3,1, height_ratios=[30,1,1])
self.image_axes = self.fig.add_subplot(111)
self.fig.subplots_adjust(bottom = .25)
# Initial image
# FIXME add null image
self.current_pixscale = .05
im = misc.imread('galaxy_images/im1.jpg')
self.obj = ImageObject(im, self.current_pixscale)
self.image_object = self.obj.current_image
# Initialize slider bars
self.imshow = self.image_axes.imshow(self.image_object, interpolation='nearest')
self.sample_axis = self.fig.add_axes([0.25, 0.1, 0.65, 0.03])
self.fov_axis = self.fig.add_axes([0.25, 0.15, 0.65, 0.03])
# self.sample_axis = self.fig.add_subplot(gs[1])
# self.fov_axis = self.fig.add_subplot(gs[2])
self.sample_slider = Slider(self.sample_axis, 'Sampling (arcsecs/pix)', self.current_pixscale, self.current_pixscale * 100., valinit = self.current_pixscale)
self.fov_slider = Slider(self.fov_axis, 'Field of View (arsecs)', .05, 3., valinit = .05)
def update(val):
self.obj.update_sampling(self.sample_slider.val)
self.imshow.set_data(self.obj.current_image)
self.canvas.draw()
self.sample_slider.on_changed(update)
self.canvas.draw()
def image_selection(self, image_name):
'''
Hacked together image selection.
Takes selection from the image_selection_menu widget
'''
if image_name == 'Galaxy Image 1':
im = misc.imread('galaxy_images/im1.jpg')
pixscale = .05
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Galaxy Image 2':
im = misc.imread('galaxy_images/im2.jpg')
pixscale = .05
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Galaxy Simulation 1':
im = misc.imread('galaxy_simulations/im1.jpg')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Jupiter Narrow Field Simulation':
im = misc.imread('jupiter_simulation/jupiter_zoomin.png')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Jupiter Wide Field Simulation':
im = misc.imread('jupiter_simulation/jupiter_zoomout.png')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Star Formation Simulation 1':
im = misc.imread('star_formation_simulation/im1.gif')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Star Formation Simulation 2':
im = misc.imread('star_formation_simulation/im2.gif')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Star Formation Simulation 3':
im = misc.imread('star_formation_simulation/im3.gif')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Star Formation Image 1':
im = misc.imread('star_formation_images/im1.jpg')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
if image_name == 'Star Formation Image 2':
im = misc.imread('star_formation_images/im2.gif')
pixscale = .1
self.obj = ImageObject(im, pixscale)
self.image_update()
def image_update(self):
'''
Helper function to image selection, resets image and sliders
'''
self.imshow.set_data(self.obj.current_image)
self.canvas.draw()
if self.obj.master_sampling != self.current_pixscale:
self.current_pixscale = self.obj.master_sampling
self.sample_axis.cla()
self.sample_slider = Slider(self.sample_axis, 'Sampling (arcsecs/pix)', self.current_pixscale, self.current_pixscale * 20., valinit = self.current_pixscale)
def update(val):
self.obj.update_sampling(self.sample_slider.val)
self.imshow.set_data(self.obj.current_image)
self.canvas.draw()
self.sample_slider.on_changed(update)
else:
self.sample_slider.reset()
def main():
app = QApplication(sys.argv)
form = AppForm()
form.show()
app.exec_()
if __name__ == "__main__":
main()