The image above shows a property boundary; the one below shows a social trail network.
We've "extruded" a circular cross-section along each trail path to create a thin "tube." This tube is a 3d object that is subject to the lighting model and can be assigned a variety of reflective characteristics. It has the additional advantage of diminishing in size with distance, so it provides depth cueing into the scene. We started using this some years back to overcome difficulties with drawing simple 2d lines over varying background colors.
In previous posts we've discussed emphasizing ridgelines, linework, and
Tracked: Feb 18, 12:36
Here's a fun image map of the Glacier Gorge area in Rocky Mountain National Park (Glacier Gorge is the steep valley in the center of the image): (Click image to get to image map site.) Once on the image map site, mouseover a trail (you'll have to cl
Tracked: Sep 18, 15:04