智能化地图注记

INTELLIGENT GARTOGRAPHIC NAME PLACEMENT

详细讨论了候选注记位置的确定、候选注记位置的质量评定以及最佳注记位置的选择方法。在全面考虑注记配置顾及因素的基础上， 对注记位置的质量进行了量化评定， 提出候选注记位压盖要素情况质量评定函数、位置优先性评定函数、位置松驰度评定函数， 从而使对注记位置质量好坏的评价有一个统一的、合理的量化标准， 这对优化注记配置， 减少智能注记过程中超常规配置出现的数量具有重要意义。在选择最佳注记位置策略方面， 提出逐次选取的方法， 使智能注记软件能灵活适应不同复杂程度的地图， 减少计算及判断工作量， 提高工作效率， 快速达到最佳的注记配置效果。

In this paper, the generation, qualitative measurement of candidate name position and the method of selecting the best name position are discussed carefully Based on almost all considerations of the factor which have impacts on the name placement,the author made some quantitative judgement on the quality of a candidate name position Especially, the three kinds of functions are proposed The first one evaluates the quality of a candidate position from overlay The second one dose from the priority of a candidate name position and the third one dose from the loose degree of a candidate name position, as a result, there is an united and reasonable criterion with regard to a candidate name position All these will play an important role in optimizing name placement and lessening the number of unusual name placements As far as the strategy of selecting the best name position, it is proposed that a method called as gradually searching methody, which is more flexible and efficient