测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2014年
11期
80-81,84
,共3页
DEM%插值%断裂线%矢量叉积%三维显示
DEM%插值%斷裂線%矢量扠積%三維顯示
DEM%삽치%단렬선%시량차적%삼유현시
DEM%interpolation%ruptured line%fork product of vector%three-dimensional present
网格DEM建模时应考虑地形断裂线等特殊地形。基于杨赤中插值法，提出了判断及处理地形断裂线之上和两侧的网格点、离散点位置关系的算法以及断裂地形三维显示的方法，通过实例验证了该方案的正确性和可行性。
網格DEM建模時應攷慮地形斷裂線等特殊地形。基于楊赤中插值法，提齣瞭判斷及處理地形斷裂線之上和兩側的網格點、離散點位置關繫的算法以及斷裂地形三維顯示的方法，通過實例驗證瞭該方案的正確性和可行性。
망격DEM건모시응고필지형단렬선등특수지형。기우양적중삽치법，제출료판단급처리지형단렬선지상화량측적망격점、리산점위치관계적산법이급단렬지형삼유현시적방법，통과실례험증료해방안적정학성화가행성。
The ruptured line of terrain must be considered for structuring gridding DEM .Based on Yangchizhong′s method, the arith-metic of judging and dealing with grid point and known point which lie over ruptured line of terrain and it ′s side is brought forward , and the method of the three-dimensional present of ruptured terrain is brought forward .The correctness and feasibility of the method is validated by example .
