Thingiverse
tactile map symbol_open circle
door bmoles
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open circle point symbol from R. Rener (1993) Tactile cartography: another view of tactile cartographic symbols, The Cartographic Journal, 30:2, 195-198
One of the five point symbols Rener found listed in at least three studies as well readable for people with visual impairments. This shape has a rounded top surface.
Originally designed to be .5 cm in diameter.
One of the five point symbols Rener found listed in at least three studies as well readable for people with visual impairments. This shape has a rounded top surface.
Originally designed to be .5 cm in diameter.
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