Before Jan Langdon weaves her wall rugs on a floor loom, she sketches designs in black and white to establish what form or geometric pattern she wants to manifest in colorful wools, cottons, linens and silks. “Patterns of energy is part of what I’m going for,” said Ms. Langdon, who has lived in Point Reyes Station since 1975.
The designs themselves convey that verve, but technique is also key. In one piece—featuring a central bright…