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r"""
Installation requirements:
pip install trame trame-vuetify trame-components trame-matplotlib
"""
import matplotlib.pyplot as plt
import numpy as np
from trame.app import get_server
from trame.ui.vuetify import SinglePageLayout
from trame.widgets import matplotlib, trame, vuetify
# -----------------------------------------------------------------------------
# Trame setup
# -----------------------------------------------------------------------------
server = get_server(client_type="vue2")
state, ctrl = server.state, server.controller
# -----------------------------------------------------------------------------
# Chart examples from:
# - http://jakevdp.github.io/blog/2013/12/19/a-d3-viewer-for-matplotlib/
# -----------------------------------------------------------------------------
def figure_size():
if state.figure_size is None:
return {}
dpi = state.figure_size.get("dpi")
rect = state.figure_size.get("size")
w_inch = rect.get("width") / dpi
h_inch = rect.get("height") / dpi
return {
"figsize": (w_inch, h_inch),
"dpi": dpi,
}
def FirstDemo():
plt.close("all")
fig, ax = plt.subplots(**figure_size())
np.random.seed(0)
ax.plot(
np.random.normal(size=100), np.random.normal(size=100), "or", ms=10, alpha=0.3
)
ax.plot(
np.random.normal(size=100), np.random.normal(size=100), "ob", ms=20, alpha=0.1
)
ax.set_xlabel("this is x")
ax.set_ylabel("this is y")
ax.set_title("Matplotlib Plot Rendered in D3!", size=14)
ax.grid(color="lightgray", alpha=0.7)
return fig
# -----------------------------------------------------------------------------
def MultiLines():
plt.close("all")
fig, ax = plt.subplots(**figure_size())
x = np.linspace(0, 10, 1000)
for offset in np.linspace(0, 3, 7):
ax.plot(x, 0.9 * np.sin(x - offset), lw=5, alpha=0.4)
ax.set_ylim(-1.2, 1.0)
ax.text(5, -1.1, "Here are some curves", size=18)
ax.grid(color="lightgray", alpha=0.7)
return fig
# -----------------------------------------------------------------------------
def DotsandPoints():
plt.close("all")
fig, ax = plt.subplots(**figure_size())
ax.plot(
np.random.rand(20),
"-o",
alpha=0.5,
color="black",
linewidth=5,
markerfacecolor="green",
markeredgecolor="lightgreen",
markersize=20,
markeredgewidth=10,
)
ax.grid(True, color="#EEEEEE", linestyle="solid")
ax.set_xlim(-2, 22)
ax.set_ylim(-0.1, 1.1)
return fig
# -----------------------------------------------------------------------------
def MovingWindowAverage():
np.random.seed(0)
t = np.linspace(0, 10, 300)
x = np.sin(t)
dx = np.random.normal(0, 0.3, 300)
kernel = np.ones(25) / 25.0
x_smooth = np.convolve(x + dx, kernel, mode="same")
plt.close("all")
fig, ax = plt.subplots(**figure_size())
ax.plot(t, x + dx, linestyle="", marker="o", color="black", markersize=3, alpha=0.3)
ax.plot(t, x_smooth, "-k", lw=3)
ax.plot(t, x, "--", lw=3, color="blue")
return fig
# -----------------------------------------------------------------------------
def Subplots():
plt.close("all")
fig = plt.figure(**figure_size())
fig.subplots_adjust(hspace=0.3)
np.random.seed(0)
for i in range(1, 5):
ax = fig.add_subplot(2, 2, i)
color = np.random.random(3)
ax.plot(np.random.random(30), lw=2, c=color)
ax.set_title("RGB = ({0:.2f}, {1:.2f}, {2:.2f})".format(*color), size=14)
ax.grid(color="lightgray", alpha=0.7)
return fig
# -----------------------------------------------------------------------------
# Callbacks
# -----------------------------------------------------------------------------
@state.change("active_figure", "figure_size")
def update_chart(active_figure, **kwargs):
ctrl.update_figure(globals()[active_figure]())
# -----------------------------------------------------------------------------
# UI
# -----------------------------------------------------------------------------
state.trame__title = "Matplotly"
with SinglePageLayout(server) as layout:
layout.title.set_text("trame ❤️ matplotlib")
with layout.toolbar:
vuetify.VSpacer()
vuetify.VSelect(
v_model=("active_figure", "FirstDemo"),
items=(
"figures",
[
{"text": "First Demo", "value": "FirstDemo"},
{"text": "Multi Lines", "value": "MultiLines"},
{"text": "Dots and Points", "value": "DotsandPoints"},
{"text": "Moving Window Average", "value": "MovingWindowAverage"},
{"text": "Subplots", "value": "Subplots"},
],
),
hide_details=True,
dense=True,
)
with layout.content:
with vuetify.VContainer(fluid=True, classes="fill-height pa-0 ma-0"):
with trame.SizeObserver("figure_size"):
html_figure = matplotlib.Figure(style="position: absolute")
ctrl.update_figure = html_figure.update
# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------
if __name__ == "__main__":
server.start()
|
