Andreas Gehrmann AG4GitHub

This example pulls together various examples of work with trees in D3.js.

The panning functionality can certainly be improved in my opinion and I would be thrilled to see better solutions contributed.

One can do all manner of housekeeping or server related calls on the drop event to manage a remote tree dataset for example.

Dragging can be performed on any node other than root (flare). Dropping can be done on any node.

Panning can either be done by dragging an empty part of the SVG around or dragging a node towards an edge.

	rows = export_order_csv(request.POST)

	# nested method used only in this method to return a yield encoded data first the yield csv code later
	def response_generator():
	yield u'\ufeff'.encode('utf8')
	for row in rows:
	yield writer.writerow(row)

	pseudo_buffer = Echo()
	writer = csv.writer(pseudo_buffer)

	import sys
	from PyQt5 import QtWidgets


	def window():
	app = QtWidgets.QApplication(sys.argv)
	w = QtWidgets.QWidget()
	w.setWindowTitle('PYQt5 lesson 1')
	w.show()
	sys.exit(app.exec_())

	def multireplace(string, replacements, ignore_case=False):
	"""
	Given a string and a replacement map, it returns the replaced string.

	:param str string: string to execute replacements on
	:param dict replacements: replacement dictionary {value to find: value to replace}
	:param bool ignore_case: whether the match should be case insensitive
	:rtype: str

	"""

	/*
	This is an incredibly rudimentary PhantomJS script to walk a DOM and emit a graphviz `dot` document.
	It is neither clever nor good.
	Proceed with caution.

	Usage: phantomjs viz.js http://2015.empirejs.org/ \| tee >(dot -Tpng > test.png)
	*/
	var page = require('webpage').create();
	var args = require('system').args;