测绘学报
測繪學報
측회학보
ACTA GEODAETICA ET CARTOGRAPHICA SINICA
2014年
12期
1280-1284,1292
,共6页
遆鹏%贾洪果%徐柱%唐建%肖亮亮
遆鵬%賈洪果%徐柱%唐建%肖亮亮
제붕%가홍과%서주%당건%초량량
道路网络地图%自动示意化%线形简化
道路網絡地圖%自動示意化%線形簡化
도로망락지도%자동시의화%선형간화
road network map%automated schematization%line shape simplification
针对当前示意网络地图线形状简化方法中存在需要人工干预或地图认知度低的问题,本文提出自动化程度高并能保证良好地图认知的线形状简化方法。该方法通过合理设定线形状简化中所需的阈值以避免人工干预,提高了线形状简化过程的自动化程度,并通过在简化过程中应用平滑算法,以减少示意结果中线对象在方向上的转折数,从而提高了简化度和清晰度。试验表明该方法不仅可以生成清晰的示意结果,并且能够保证良好的地图认知度。
針對噹前示意網絡地圖線形狀簡化方法中存在需要人工榦預或地圖認知度低的問題,本文提齣自動化程度高併能保證良好地圖認知的線形狀簡化方法。該方法通過閤理設定線形狀簡化中所需的閾值以避免人工榦預,提高瞭線形狀簡化過程的自動化程度,併通過在簡化過程中應用平滑算法,以減少示意結果中線對象在方嚮上的轉摺數,從而提高瞭簡化度和清晰度。試驗錶明該方法不僅可以生成清晰的示意結果,併且能夠保證良好的地圖認知度。
침대당전시의망락지도선형상간화방법중존재수요인공간예혹지도인지도저적문제,본문제출자동화정도고병능보증량호지도인지적선형상간화방법。해방법통과합리설정선형상간화중소수적역치이피면인공간예,제고료선형상간화과정적자동화정도,병통과재간화과정중응용평활산법,이감소시의결과중선대상재방향상적전절수,종이제고료간화도화청석도。시험표명해방법불부가이생성청석적시의결과,병차능구보증량호적지도인지도。
The line shape simplification plays an important role in the production of schematic network maps .However ,in current automated schematization methods ,the simplification of line shapes either needs a threshold determined in manual manner so as to decrease the automated degree ,or ignore the original line shape so as to reduce the map recognition .This study aims to tracke these problems and an automated method for the line shape simplification is proposed .In this method ,a threshold for the simplica‐tion of line shapes was given and the line smoothing was applied to network map in this simplification process in order to improve the simplification degree of the line shapes .The experimental results indicated that the new method is able to automatically generate schematic maps with great clarity and well‐preserved map recognition compared with their original shapes .