Pie/Bar Chart

This interface allows the user to generate  a pie or a bar chart over some attributes. A data analysis that can be done with these charts is the comparison between two or more compatible attributes.

For example, using data from some districts,  it is possible to make a comparison of the income distribution using the attributes that indicate the salary ranges based on the minimum salary. The salaries ranges varies from 2-5, 5-10,10-15,15-20, >20 as showed below.

1. Define the visual parameters of the chart 
• Type: choose the chart type (bar or pie).
• Size: choose the pie/bar size to be drawn on the map.
• Contour Color: Sets the contour line color of the chart
• Contour Width: Sets the contour line width of the chart.
• A summary function can be chosen if the chart is being generated based on a linked dataset, otherwise this function is not visible
  
2. Define the properties used to generate the chart.
• Choose the Attributes from the list of all attributes presented.
• Click on  to add the attribute with an automatic color associated.
• Optionally, it is possible to change the color, by doing:
• click over the Color and choose a new one.
• Optionally, it is possible to change the list of attributes selected, by doing:
• Click over the Attribute name and click on (-) to remove this attribute.
3. Press OK to generate the chart or Cancel to close the dialog.