Module 10 Dot Mapping.......

        This week’s module introduced us to Dot Mapping.  Dot maps are used to represent the location of one or more instances of a geographic occurrence.  The dot symbol represents a specific quantity of the occurrence and is placed in the relative location of the occurrence.  When creating a dot map, conceptual or raw-count data should always be used.  The dot map allows for a quick visualization of the quantity and location of graphic occurrences.  It is also useful for comparing distributions of related incidences.  Within this lab we also learned how to spatially join tabular data, select the appropriate dot size and unit value and use a masking layer to improve our dot placement.  We were also given the opportunity to improve upon ArcMap’s legend and create a more improved and informative dot legend.   For this task, I exported my map to pdf and then used Bluebeam Revu to create the rectangles and insert the appropriate quantity of dots.  I then exported a snapshot of those rectangles to ArcMap and added the necessary text.