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Project Description

Vizier: a python reporting library

Originally intended to be a fork of cairoplot to add new reporting functionality,
vizier has been completely re-written and re-imagined to provide a dead-easy
reporting and graphing alternative for python using cairo.

Notable features include::

* the creation and management of multi-page documents ("books"); and
* different types of plots (e.g. bar, line, scatter) on one graph

Vizier was inspired by the fine work of the contributors and maintainers of
the CairoPlot project, who sadly have not had time to continue their work. See
`CairoPlot's project page on Launchpad <>`_.

Note: libcairo >= 1.10.1 recommended, to fix a bug with multi-page PDF clipping.

Installing on Windows

Grab a recent version of GTK+, which includes Cairo. You can download an installer here:

Now, get vizier. In the root vizier directory, run::

python install

You should now be able to run one of the examples. Try::

python examples/

If abc.pdf is created and looks relatively sane, you're ready to go.

Quick Example

A multi-page PDF could be created as follows::

#!/usr/bin/env python

from import PDFBook, SimplePage, GridPage, Inch, TextSpace, LEFT, BOTTOM
from vizier.plot import BarGraph, Graph, BarPlot, LinePlot
book = PDFBook(units=Inch)

bar_graph = BarGraph([1, 2, 3, 4, 5, 6, 7])
page = SimplePage(width=11, height=8.5, margin=0.5, spacing=0.5)
page[0] = bar_graph

complex_graph = ContinuousPlot(legend=True, x_grid=(0, 0.2), y_grid=(0, 0.5))

# each tuple in the data is (x, y, y-error)
LineSeries("Raw Observations", [(0, 0.03, 0.016), (1, 0.18, 0.034), (2, 0.176, 0.016)]),

# each tuple in the data is (x[start, end], y, y-error)
AreaSeries("Other Things", [((-0.5, 0.5), 1.03, 0.016), ((0.5, 1.5), 1.21, 0.034), ((1.5, 2.5), 1.386, 0.034)]),

# show a threshold at y=4.25
Threshold("Warning", "Imminent Catastrophic Destruction", 4.25)

vlayout = VerticalLayout(0.1, 0.6) # splits a space vertically into 3.
vlayout[0] = TextSpace("This layout", halign=LEFT)
vlayout[1] = TextSpace("is split up into 3")
vlayout[2] = TextSpace("non-uniformly!", valign=BOTTOM)

page = GridPage(2, 2, width=11, height=8.5)
page[0, 0] = TextSpace("This happens to be a graph.")
page[0, 1] = complex_graph
page[1, 0] = complex_graph
page[1, 1] = vlayout

fp = open("abc.pdf", 'wb')

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