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Embedd offline plots in PyQt WebView (python)

See original GitHub issue

Hi all, It seems that there are some troubles when embedding an offline plot in a QWebView. Here the code http://pastebin.com/MSKnCExp

if directly loading the plot in a QWebView then the plot is not visible at all:

browser_001

if the plot is opened in a default browser and then saved as html file from the browser, then the plot can be loaded and it is visible in the QWebView but no interactions are possible:

browser_002

Issue Analytics

State:
Created 7 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

8reactions

jonmmeasecommented, Sep 22, 2018

In case anyone here is still interested, here’s a quick proof-of-concept of how to display a plotly figure in a pyqt5 context. This uses QWebEngineView, which is a full chromium based browser and it seems to support everything plotly.js needs (including WebGL).

import plotly.offline as po
import plotly.graph_objs as go

from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5 import QtCore, QtWidgets
import sys


def show_qt(fig):
    raw_html = '<html><head><meta charset="utf-8" />'
    raw_html += '<script src="https://cdn.plot.ly/plotly-latest.min.js"></script></head>'
    raw_html += '<body>'
    raw_html += po.plot(fig, include_plotlyjs=False, output_type='div')
    raw_html += '</body></html>'

    fig_view = QWebEngineView()
    # setHtml has a 2MB size limit, need to switch to setUrl on tmp file
    # for large figures.
    fig_view.setHtml(raw_html)
    fig_view.show()
    fig_view.raise_()
    return fig_view


if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)

    fig = go.Figure(data=[{'type': 'scattergl', 'y': [2, 1, 3, 1]}])
    fig_view = show_qt(fig)
    sys.exit(app.exec_())

0reactions

jonmmeasecommented, Sep 22, 2018

Yeah, as I understand it QWebEngineView is a bear to package. I installed Qt/pyqt using conda on OS X and it was included. I believe the same would be true when using conda on Linux. Not sure about windows though.