North hatched ruler

摘要

(57) Abstract Objective Responding to the height of the building section rank on site drawingIt is back space distance, without calculating troublesomely and the like easily the requestAnd others it makes the re ru way. Constitution In the abscissa line 3 which crosses and axis of ordinates line 5 the eavesFuture rise to graduate and cut 7, in abscissa line 3 and axis of ordinates line 5Grit 9 is drawn in the field where it was put. Intersection a as a centerThe circular arc 11 which designates the length up to front eaves height graduation 7 as radius sideIn axial line extending 3 and axis of ordinates line 5, you draw. Front eaves height divisionCorresponds to ri 7 the back space range marker 17 which, 19 and 21 the carving/moment maThe re it is auxiliary abscissa line 13 and auxiliary axis of ordinates line 15, sideAxial line you draw parallel 3 and axis of ordinates line 5.