Pie Plot

Here you will find the guide to every parameter of the pie plot. If you need more generic information please see DataPlotly Basic Usage.

Plot Properties

Layer: the combobox will display all the vector layers loaded in QGIS

Grouping: features with the same value in the Grouping field are assigned to the same pie segment

Y Field: the Y field determines the size of the pie segment. If features are assigned to the same pie segment because they have the same value in the Grouping field the corresponding values in the Y field are summed up to determine the size of the pie segment. To create a pie chart displaying the number of features belonging to each pie segment enter a 1 instead of a field name

Marker color: the color used for filling the first pie segment. Subsequent pie segments are filled using the default Plotly color scale.

To control the color of the individual pie segments use an expression yielding color strings depending on the value in the Grouping field.

For example, to create a pie chart showing the population in each continent using the Natural Earth ne_110m_admin_0_countries layer, choose CONTINENT as the Grouping field and POP_EST as the Y field. Then, to set the colors for the pie segments use the following expression in the Marker color field:

map_get(
  map(
    'Asia', '#8dd3c7',
    'Europe', '#ffffb3',
    'North America', '#bebada',
    'South America', '#fb8072',
    'Africa', '#80b1d3',
    'Oceania', '#fdb462',
    'Antarctica', '#b3de69',
    'Seven seas (open ocean)','#fccde5'
  ), "CONTINENT"
)

Plot Customizations

Show Legend: show the legend of the current plot

Legend Title: the title of the legend

Horizontal Legend: check if you want to have an horizontal legend