ampCAD, a computer aided dispatch (CAD) solution aimed towards smaller entities that need to dispatch and keep track of resources. It was built with public safety in mind, but could be used for other applications as well. Google Maps provides a visual overview.
PHP Cad and Drawing Program, a CAD/painting program written in PHP. The user requires no detailed drawing skill.All objects are functions placed on the screen by defining one or two points with parameters for the object. Produces .png-.jpg-.gif(animated)-.mpg-.pov pictures.