Source code for toyplot.browser

# Copyright 2014, Sandia Corporation. Under the terms of Contract
# DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains certain
# rights in this software.

"""Functionality for displaying a Toyplot canvas in a web browser."""


import collections

[docs]def show(canvases, title="Toyplot Figure"): """Display one or more canvases in a web browser. Uses Toyplot's preferred HTML+SVG+Javascript backend to display one-or-more interactive canvases in a web browser window. Because the canvases are displayed in a separate web browser process, this function returns immediately. Parameters ---------- canvases: :class:`toyplot.canvas.Canvas` instance or sequence of :class:`toyplot.canvas.Canvas` instances. The canvases to be displayed. title: string, optional Optional page title to be displayed by the browser. """ import os import tempfile import toyplot.canvas import toyplot.html import xml.etree.ElementTree as xml import webbrowser if not isinstance(canvases, (toyplot.canvas.Canvas, collections.Iterable)): raise ValueError("Expected one or more instances of %s, received %s." % (toyplot.canvas.Canvas, type(canvases))) # pragma: no cover if isinstance(canvases, toyplot.canvas.Canvas): canvases = [canvases] html = xml.Element("html") head = xml.SubElement(html, "head") xml.SubElement(head, "title").text = title body = xml.SubElement(html, "body") for canvas in canvases: body.append(toyplot.html.render(canvas)) fd, path = tempfile.mkstemp(suffix=".html") with os.fdopen(fd, "wb") as stream: stream.write(xml.tostring(html, method="html")) webbrowser.open("file://" + path, new=1, autoraise=True)