pyzebra/pyzebra/app.py

148 lines
3.3 KiB
Python

import numpy as np
from bokeh.io import curdoc
from bokeh.layouts import column, row
from bokeh.models import (
BasicTicker,
Button,
ColumnDataSource,
Range1d,
Grid,
HoverTool,
Image,
LinearAxis,
PanTool,
Plot,
ResetTool,
SaveTool,
WheelZoomTool,
Dropdown,
TextInput,
Toggle,
Spinner,
)
import pyzebra
IMAGE_W = 256
IMAGE_H = 128
doc = curdoc()
global curent_h5_data, current_index
def update_image():
image_source.data.update(image=[curent_h5_data[current_index]])
index_spinner.value = current_index
def filelist_callback(_attr, _old, new):
global curent_h5_data, current_index
data = pyzebra.read_detector_data(new)
curent_h5_data = data
current_index = 0
update_image()
filelist = Dropdown()
filelist.on_change("value", filelist_callback)
def fileinput_callback(_attr, _old, new):
cami_list = pyzebra.read_cami(new)
file_list = cami_list["filelist"]
filelist.menu = file_list
fileinput = TextInput()
fileinput.on_change("value", fileinput_callback)
#fileinput.value = "/home/usov_i/psi-projects/sinq/data/1.cami"
def index_spinner_callback(_attr, _old, new):
global current_index
if 0 <= new < curent_h5_data.shape[0]:
current_index = new
update_image()
index_spinner = Spinner(value=0)
index_spinner.on_change("value", index_spinner_callback)
plot = Plot(
x_range=Range1d(0, IMAGE_W, bounds=(0, IMAGE_W)),
y_range=Range1d(0, IMAGE_H, bounds=(0, IMAGE_H)),
plot_height=IMAGE_H * 3,
plot_width=IMAGE_W * 3,
toolbar_location="left",
)
# ---- tools
plot.toolbar.logo = None
hovertool = HoverTool(tooltips=[("intensity", "@image")], names=["image_glyph"])
plot.add_tools(PanTool(), WheelZoomTool(maintain_focus=False), SaveTool(), ResetTool(), hovertool)
plot.toolbar.active_scroll = plot.tools[1]
# ---- axes
plot.add_layout(LinearAxis(), place="above")
plot.add_layout(LinearAxis(major_label_orientation="vertical"), place="right")
# ---- grid lines
plot.add_layout(Grid(dimension=0, ticker=BasicTicker()))
plot.add_layout(Grid(dimension=1, ticker=BasicTicker()))
# ---- rgba image glyph
image_source = ColumnDataSource(
dict(image=[np.zeros((1, 1), dtype="float32")], x=[0], y=[0], dw=[IMAGE_W], dh=[IMAGE_H],)
)
image_glyph = Image(image="image", x="x", y="y", dw="dw", dh="dh")
image_renderer = plot.add_glyph(image_source, image_glyph, name="image_glyph")
def prev_button_callback():
global current_index
if current_index > 0:
current_index -= 1
update_image()
prev_button = Button(label="Previous")
prev_button.on_click(prev_button_callback)
def next_button_callback():
global current_index
if current_index < curent_h5_data.shape[0] - 1:
current_index += 1
update_image()
next_button = Button(label="Next")
next_button.on_click(next_button_callback)
def animate():
next_button_callback()
def animate_toggle_callback(active):
global cb
if active:
cb = doc.add_periodic_callback(animate, 300)
else:
doc.remove_periodic_callback(cb)
animate_toggle = Toggle(label="Animate")
animate_toggle.on_click(animate_toggle_callback)
doc.add_root(
column(
fileinput, filelist, plot, row(prev_button, next_button), row(index_spinner, animate_toggle)
)
)