导线测量计算ppt课件

.,三.导线测量的内业计算,三、导线测量的内业计算,目的：计算各导线点的坐标,要求：评定导线测量的精度、并合理地分配测量误差,.,1.附合导线的计算,1、附合导线的计算,A、绘制计算草图，并在表内填写已知数据和观测数据,.,附合导线计算步骤,(3)各边方向角的推算,(5)推算各点坐标,.,附合导线坐标计算表,附合导线坐标计算,11190024,11190112,41600,738.33,1845.69,1039.98,.,附合导线计算练习,.,2053648,2904054,2024708,1672156,1753125,2140933,12560744,-13,-13,-13,-13,-13,-12,-77,2053635,2904042,2024655,1672143,1753112,2140920,12560625,2364428,2110753,1002711,774016,901833,944721,603801,125.36,98.76,144.63,116.44,156.25,641.44,+0.04-107.31,+0.03-17.92,+0.04+30.88,+0.03-0.63,+0.05-13.05,-108.03,-0.02-64.81,-0.02+97.12,-0.02+141.29,-0.02+116.44,-0.03+155.70,+445.74,-107.27,-17.89,+30.92,-0.60,-13.00,-64.83,+97.10,+141.27,+116.42,+155.67,+445.63,1536.86,837.54,1429.59,772.71,1411.70,869.81,1442.62,1011.08,1442.02,1127.50,1429.02,1283.17,-107.84,.,2.闭合导线的计算,2、闭合导线的计算,A、计算步骤与附合导线相同B、由于图形不同，计算理论值的公式与附合导线不同,C、与附合导线计算的不同之处,图形条件不同理=(n-2)180f=测-理,.,闭合导线的计算步骤,闭合导线的计算步骤,(1)绘制计算草图，在表内填写已知数据和观测数据,(2)角度闭合差的计算与调整,(3)各边方向角的推算(4)计算坐标增量,(5)坐标增量闭合差的计算与调整(6)推算各点坐标,.,闭合导线坐标计算表,闭合导线坐标计算,5395900,5400000,484318,00,536.27,328.74,485.47,.,闭合导线的计算练习,北,1,A,3,2,78.16m,105.22m,129.34m,80.18m,.,闭合导线的计算练习答案,辅助计算,点号,观测角（右角）,改正数,改正角,1,2,3,坐标方位角,距离D(m),点号,A,1,2,3,增量计算值,改正后增量,坐标值,x(m),y(m),x(m),y(m),x(m),y(m),A,1,A,1,1074830,893630,893350,531842,1253000,730020,+12,+13,+13,+12,+50,3595910,1074842,730032,893403,893643,3600000,1253000,3061914,2155317,105.22,80.18,129.34,78.16,392.90,-0.02-61.10,-0.02+47.90,-0.03+76.61,-0.02-63.32,+0.02+85.66,+0.02+64.30,+0.02-104.21,+0.01-45.82,+0.09,-0.07,+64.32,+47.88,+76.58,-104.19,-45.81,-63.34,-61.12,+85.68,0.00,0.00,585.68,545.81,563.34,438.88,650.00,486.76,500.00,500.00,500.00,500.00,A,.,3、支导线计算,A