坡向的首尾相接方位编码

提示词

将已提供的坡向结果按原方位零点、角度方向和分区定义对应到首尾相接的循环色表或方位类别图例。已分类结果中跨零的同一方位类保持同色；连续角度色阶在循环接缝处平顺闭合，零点与完整一周的等价方向同色，不合并附近不同角度。图例与地图面域逐一对应；平地无定义坡向、缺测及范围外状态按原数据分别表达，不把北向两端画成数值高低的对立，也不从地形截图重算坡向。

Map the supplied aspect results to a cyclic colour scheme or compass-category legend using the source bearing origin, angular direction and class definitions. For classified results, retain the same colour for a directional class that straddles the origin. For continuous angles, close the colour ramp smoothly at the seam: equivalent zero and full-turn bearings match, without merging nearby distinct angles. Keep the legend-to-map assignment consistent. Show undefined aspect on flat ground, missing data and areas outside the source domain according to their actual definitions. Do not imply that the two ends of north are opposing low and high values, or recalculate aspect from a terrain screenshot.