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How to change the position of legend in Pygal?
Pygal is abbreviated as Python Data Visualization Library, which is designed to create the interactive charts and graphs. This is library is built with the advanced features than the SVG(Scalar Vector Graphics) format, to work with the high quality graphics that can be easily embedded into the web pages and applications.
Pygal is abbreviated as Python Data Visualization Library, which is designed to create the interactive charts and graphs. This is library is built with the advanced features than the SVG(Scalar Vector Graphics) format, to work with the high quality graphics that can be easily embedded into the web pages and applications.
Installing Pygal
You can install pygal using the following command –
>pip install pygal Defaulting to user installation because normal site-packages is not writeable Collecting pygal Downloading pygal-3.0.0-py2.py3-none-any.whl (129 kB) ------------------------------------- 129.4/129.4 kB 80.3 kB/s eta 0:00:00 Installing collected packages: pygal Successfully installed pygal-3.0.0
Changing the position of legend
The legend is used to add the context and clarity to the data, which displays the names of each data series in our chart and the corresponding colors too. By default, the legend in the pygal graphs is at the top of the graph. You can change its position using the property legend_at_bottom.
Syntax
Following is the syntax for changing the position of the legend in the pygal –
pygal.chart_name.legend_at_bottom = True
Where,
pygal is the library of the python language.
chart_name is the chart that we want to use.
legend_at_bottom is the legend.
Example
In the following example, we will set the value of the property legend_at_bottom as False.
import pygal line_chart = pygal.Bar(width=690, height=300, explicit_size=True) line_chart.title = 'Scores' line_chart.x_labels = ['1-10 Overs', '11-20 Overs', '21-30 Overs', '31-40 Overs', '41-50 Overs'] line_chart.add('Temperature', [35,40,25,50,90]) line_chart.legend_at_bottom = False line_chart.render_in_browser()
Output
When we run the above code, the output of the legend will be shown as below. When we use render() to display the chart, the chart will not be display but the data will be returned in the xml format.
Example
Let’s see another example to display the legend at the bottom by assigning the legend_at_bottom as True and then the output will be an image with the legend at the bottom left which is displayed in the web browser as we used render_in_browser().
import pygal line_chart = pygal.Line() line_chart.title = 'Temperature' line_chart.x_labels = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] line_chart.add('Temperature', [23,34,25,37,32,40,24]) line_chart.legend_at_bottom = True line_chart.legend_at_bottom_columns = 2 line_chart.render_in_browser()
Output
When we execute the above code, following output will be displayed -