1平>0
and <51北坡>337.5 or <=22.52缓>=5 and <152东北坡>22.5 and <=67.53斜>=15 and <253东坡>67.5 and <=112.54陡>=25 and <354东南坡>112.5 and <=157.55急>=35 and <45
5南坡>157.5 and <=202.56
险
>=45
6西南坡>202.5 and <=247.57西坡>247.5 and <=292.58西北坡>292.5 and <=337.5
9
无坡向
else 1极高山>=5000
2高山<5000 and >=35001脊部3中山<3500 and >=10002上坡4低山<1000 and >=5003中坡5丘陵<500 and >=200
4下坡6
平原
<=200
5山谷6
平地
地貌范围对照表:(米)坡度范围对照表(单位:度,0
)坡向范围对照表(单位:方位角,度)坡位