The core idea to develop this tool is to provide a light weight tool to interact with the map data and represent it in a Vertical Bar Chart. This tool is a light weight application, using MOJO, and can be compared to bulky APIs currently available in the market for chart presentations. This tool provides a means of comparative study of map data associated with a map layer. The tool is accessible by an additional menu, provided with 'any' educational GIS application, to interact with a map and map data provided by MOJO. In the current era of high data volume, it is hard to make sense out of large loads of data. At times it is very important to present the data in a form which makes sense to the observer. A bar chart is one form of data comparison where it is easy to compare high, low and percentage differences. The tool uses map data and provides an interface for the user to select, e.g. U.S. states from a list, and the attributes associated with that layer. After selection the data can be viewed as a vertical bar chart. Bar height represents the attribute value. The X-axis represents the states, and the Y-axis represents the percentile values of the attribute. Users can select a color from a multiple choice list, and various states appropriate to the needs of the comparative study.
