### Pie Chart and Bar Chart

This interface allows the user to generate pie/bar charts from the choice of attributes of the selected layer. These charts assist in the interpretation of data, highlighting the selected attributes.
It is accessible through:
Layer Explorer > Right Click over a Layer-name > Pie/Bar Chart...
To create a pie/bar chart is required the following steps:

1. Define the parameters of the chart.

- Type: Specifies the type of chart being used.
- Size: This parameter defines the size of the charts to be drawn on the map display.
- Contour Color: Sets the outline color of the chart.
- Contour Width: Sets the outline width of the chart.

2. Define the properties of the chart.

- The "Attribute" field have a list of attributes belonging to the selected layer.
- Using the (+) and (-) buttons the user can add or remove the desired attributes.

An example of data analysis that can be done with the help of charts is the comparison between compatible attributes. Using data from the districts of São Paulo is possible to make a comparison of the income distribution using the attributes that indicate the salary ranges based on the minimum salary.
The attributes used were:

- 2 to 5 minimum salaries.
- 5 to 10 minimum salaries.
- 10 to 15 minimum salaries.
- 15 to 20 minimum salaries.
- more than 20 minimum salaries.

The result represented by pie chart is as follows:
The result represented by bar chart is as follows: