Adding Drawing Objects / Symbols
In any decent software package, drawing objects such as polygons, rectangles, rounded rectangles, and ellipses should have line and fill attributes. These properties should be able to be edited by double clicking on the object. Very importantly, you should also be able to set the default line and fill properties, as this saves an enormous amount of time in putting together a presentation quality map.
You should also be able to include custom symbols in the symbol set. Some software
packages allow internal editing of symbols, while others, such as Surfer,
which have more comprehensive symbol
libraries allow for access via a third-party font-editing program - These can be
used to customize the default symbols or create additional custom symbols of your own.
There are several TrueType font editors, however we have researched the following packages
and would recommend them: