(57) [summary] In the north shaded determination of the [purpose] buildings, and easily the value of the setback distance from the north neighboring land boundary line of the lower portion of the building, You get north hatched auxiliary ruler that is quickly determined. [Configuration] this north shaded auxiliary ruler 1, in one of the axis with respect to two orthogonal axes Chart 3 that was printed on the seat surface 2 increments the eaves height dimension memory 31 of the building, the north side of the site of the building to the other axis retreat from the neighboring land boundary line distance dimension memory 32 the Noki-daka size scale 3 1 and minced in the same ratio, the starting point portion 3 to the intersection of the two orthogonal axes 3 radially on the two orthogonal axes Figure 3 as the center was 0~90 ° To configure it carved the angle memory 34.
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