pyqtgraph/examples/optics_demos.py

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# -*- coding: utf-8 -*-
"""
Optical system design demo
"""
import initExample ## Add path to library (just for examples; you do not need this)
from optics import *
import pyqtgraph as pg
import numpy as np
from pyqtgraph import Point
app = pg.QtGui.QApplication([])
w = pg.GraphicsWindow(border=0.5)
w.resize(1000, 900)
w.show()
### Curved mirror demo
view = w.addViewBox()
view.setAspectLocked()
#grid = pg.GridItem()
#view.addItem(grid)
view.setRange(pg.QtCore.QRectF(-50, -30, 100, 100))
optics = []
rays = []
m1 = Mirror(r1=-100, pos=(5,0), d=5, angle=-15)
optics.append(m1)
m2 = Mirror(r1=-70, pos=(-40, 30), d=6, angle=180-15)
optics.append(m2)
allRays = []
for y in np.linspace(-10, 10, 21):
r = Ray(start=Point(-100, y))
view.addItem(r)
allRays.append(r)
for o in optics:
view.addItem(o)
t1 = Tracer(allRays, optics)
### Dispersion demo
optics = []
view = w.addViewBox()
view.setAspectLocked()
#grid = pg.GridItem()
#view.addItem(grid)
view.setRange(pg.QtCore.QRectF(-10, -50, 90, 60))
optics = []
rays = []
l1 = Lens(r1=20, r2=20, d=10, angle=8, glass='Corning7980')
optics.append(l1)
allRays = []
for wl in np.linspace(355,1040, 25):
for y in [10]:
r = Ray(start=Point(-100, y), wl=wl)
view.addItem(r)
allRays.append(r)
for o in optics:
view.addItem(o)
t2 = Tracer(allRays, optics)
### Scanning laser microscopy demo
w.nextRow()
view = w.addViewBox(colspan=2)
optics = []
#view.setAspectLocked()
view.setRange(QtCore.QRectF(200, -50, 500, 200))
## Scan mirrors
scanx = 250
scany = 20
m1 = Mirror(dia=4.2, d=0.001, pos=(scanx, 0), angle=315)
m2 = Mirror(dia=8.4, d=0.001, pos=(scanx, scany), angle=135)
## Scan lenses
l3 = Lens(r1=23.0, r2=0, d=5.8, pos=(scanx+50, scany), glass='Corning7980') ## 50mm UVFS (LA4148)
l4 = Lens(r1=0, r2=69.0, d=3.2, pos=(scanx+250, scany), glass='Corning7980') ## 150mm UVFS (LA4874)
## Objective
obj = Lens(r1=15, r2=15, d=10, dia=8, pos=(scanx+400, scany), glass='Corning7980')
IROptics = [m1, m2, l3, l4, obj]
## Scan mirrors
scanx = 250
scany = 30
m1a = Mirror(dia=4.2, d=0.001, pos=(scanx, 2*scany), angle=315)
m2a = Mirror(dia=8.4, d=0.001, pos=(scanx, 3*scany), angle=135)
## Scan lenses
l3a = Lens(r1=46, r2=0, d=3.8, pos=(scanx+50, 3*scany), glass='Corning7980') ## 100mm UVFS (LA4380)
l4a = Lens(r1=0, r2=46, d=3.8, pos=(scanx+250, 3*scany), glass='Corning7980') ## 100mm UVFS (LA4380)
## Objective
obja = Lens(r1=15, r2=15, d=10, dia=8, pos=(scanx+400, 3*scany), glass='Corning7980')
IROptics2 = [m1a, m2a, l3a, l4a, obja]
for o in set(IROptics+IROptics2):
view.addItem(o)
IRRays = []
IRRays2 = []
for dy in [-0.4, -0.15, 0, 0.15, 0.4]:
IRRays.append(Ray(start=Point(-50, dy), dir=(1, 0), wl=780))
IRRays2.append(Ray(start=Point(-50, dy+2*scany), dir=(1, 0), wl=780))
for r in set(IRRays+IRRays2):
view.addItem(r)
IRTracer = Tracer(IRRays, IROptics)
IRTracer2 = Tracer(IRRays2, IROptics2)
phase = 0.0
def update():
global phase
if phase % (8*np.pi) > 4*np.pi:
m1['angle'] = 315 + 1.5*np.sin(phase)
m1a['angle'] = 315 + 1.5*np.sin(phase)
else:
m2['angle'] = 135 + 1.5*np.sin(phase)
m2a['angle'] = 135 + 1.5*np.sin(phase)
phase += 0.2
timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(40)
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()