Added para datasource to database, modified calling method of database

cz.py

@@ -44,13 +44,20 @@ def main():
         from pyat.czcore import call_cz
         import numpy as np
 
+        # 定义时间段
+        timeIndex = timeType
+        # 创建类
+        database = DataBase(ETOPO1Path, STPath,datasource="")
+        # 设置时间段
+        database.set_timePeriod(timeIndex)
+
         # call_cz函数返回汇聚区计算的中间值CzData的列表
         # CzData保存了方位角、距离、深度、损失、地形、会聚区等数据
         # 其中czdata.azi是方位角、czdata.ranges是距离列表、czdata.depths是深度列表、
         # czdata.TL是损失、czdata.bathym是地形数据
         # czdata.Rays是声线数据
         # czdata.CzDetail是会聚区数据，包括会聚区宽度和距离
-        res = call_cz(ETOPO1Path, STPath, freq, lat, lon, azi, sourceDepth, receiveDepth, timeType=timeType)
+        res = call_cz(database, freq, lat, lon, azi, sourceDepth, receiveDepth)
         # call_cz(25, 18.0, 114.0, 10, 3500)
 
         # write data to file