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http://www.itl.nist.gov/div898/handbook/eda/section3/gif/starplot.gif
Bilateral Graphs show two different variables. this graph shows the difference in giving humanitarian aid in both percentage amounts and in actual dollar amounts. As you can see, Luxembourg's increase was small in actual dollar amounts but huge in terms of increase, and the United States decrease was large in terms of dollar amounts, but small percentage wise.
This is a Topographic Map of Australia. These maps show the vertical elevation differences between two places, either through differences in color shade or with same elevation lines. Topographic maps are vital when when hiking and biking as it is important to know the grade of the trail people are following. http://www.icsm.gov.au/icsm/images/map-index.jpg
Planimetric Map show only the horizontal locations of places on the map, avoiding the vertical differences. Planimetric maps show accurate horizontal differences between places. Does not show vertical (topographical) information.https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqV6e964zBldHdgB4Kb37vJWzrzrM0edtugephPyu4PFk5Z4n_0KbtmQSPAJcg9-xgueMljuXGuQ0JoF0zbt93dvVaoB-KiuBq-bipHW3WwW8Bxd5fPVM7y8b3-ijxy3ozPZdhJbn4eQ/s1600-h/planimetric+map.jpg