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Another Python SVG Chart Generator that uses CSS smartly

Project Description

Charty is a python library that generates SVG charts that use cascading stylesheets to alter their style and appearance. The file included in the project includes some example usage for creating bar, line and pie charts. In general, you want to pass in height, width, data, css file name and other option parameters to the constructor and then call the output method to write the svg to a file. Every SVG node is classed explicitly and these can be styled as necessary. There are example css files in the css folder of the project, but below is an explicit description of the classes.

CSS Class Names


.x-axis-path - the path node for the x-axis
.y-axis-path - the path node for the left y-axis
.y-axis-path2 - the path node for the right y-axis
.x-notch - notches that show up along the x-axis in between data points
.x-notch-left - the left most notch that appears at the beginning of the x-axis
.x-notch-right - the right most notch that appears at the end of the x-axis
.x-axis-label - the text label node for x-axis labels
.y-axis-label - the text label node for y-axis labels
.y-gridline - path node class for each y-axis gridline

Grid Charts Only (Line, Bar)

.value-as-label - for values that are strings instead of numerical values, this is the class of the text label node that will appear in the chart body
.data-point-label - the text label node for labels appearing above each data point

Line Chart Only

.series-#-line - For line charts, these represent the path node for that numbered data series. Data series’ are automatically numbered (1-indexed), ex./ .series-2-line

Pie Chart Only

.slice-# - the path node for a slice of a pie. These are automatically numbered (1-indexed)
.pie-label-left - a pie slice label is given this class if it appears on the left side of the chart (allows for text-anchor styling)
.pie-label-right - a pie slice label is given this class if it appears on the right side of the chart (allows for text-anchor styling)

Keyword Argument Options

padding - the padding to add on all 4 sides of the chart
x_padding - padding to add in x direction only (will be added to padding)
y_padding - padding to add in y direction only (will be added to padding)
currency - If True, will display $ in labels
units - If True, will display numerical unit abbreviation (B: billions, M: millions, etc) in labels

Grid Charts Only

gridline_percent - percentage of chart area to be in between each gridline
x_label_height - height (in pixels) of x labels
x_label_padding - padding (in pixels) on x-axis labels
y_label_height - height (in pixels) of y labels
y_label_padding - padding (in pixels) on y-axis labels
label_intervals - interval at which to display x axis label. Every other label would be 2, every third would be 3, etc.

Bar Chart Only

label_rotate - the degree to rotate x-axis labels
Release History

Release History

This version
History Node


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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
Charty-0.1.0.tar.gz (16.4 kB) Copy SHA256 Checksum SHA256 Source Nov 29, 2010

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