RDMS4.5与CASS2008等高线绘制方法比较与实际应用

在不影响地形图精度的前提下,为使绘制等高线的方法更简捷、图形更加美观,利用RDMS4.5和CASS2008都具有根据高程点自动构网内插绘制等高线的功能,以绘制大马庄山区地形图等高线为例,进行比较.分析发现,RDMS4.5在绘制等高线时建立的DTM方法、修改数字地面模型、等高线拟合、注记等方面更有优势,而CASS2008在修饰等高线时具有比RDMS4.5更强的功能.因此,利用RDMS4.5绘制等高线线形好的优点,再结合CASS2008强大的CAD功能,使等高线的绘制更加简捷,节省了成图时间,大大提高了效率,从而为水利工程规划、设计和施工提供更好的服务.

Comparison and practical application of contour drawing method with RDMS4.5 and CASS2008

Under the condition of keeping topographic map precision,drawing simply and looking fine,contour drawing function was compared with RDMS4.5 and CASS2008 which construct nets,interpolate and draw contour automatically based on elevation point example of mountain village named Damazhuang.The analysis shows that the advantages of RDMS4.5 are DTM method,digital terrain model modifying,contour fitting and marking when the contour map is drawn;and CASS2008 have more advantages in decorating contour function than RDMS4.5.Therefore,using advantages of RDMS4.5 contour drawing functions,and combining advantages of CASS2008 powerful CAD function,it is simpler,more time saving and more efficiency in contour drawing.It can provide better service for hydraulic engineering planning,designing and constructing.