用python写fme数据转换脚本.docx

用python写fme数据转换脚本
学了几天的python和FME Objects，发现之间教程里的很多对象已经过时了，而且语法和vb相差比较大，但概念还是一样的，下面写一段python代码，将这几天学习的对象联系一下，下面的代码功能是读schema feature和data feature，并显示feature的属性和关联的坐标系，并使用FMEDialog对象来设置源和目标，并做格式转换，一下代码经过测试，运行正常。
import pyfme
FME_GEOMETRY_TYPE={
    0:"FME_GEOM_UNDEFINED",
    1:"FME_GEOM_POINT",
    2:"FME_GEOM_LINE",
    4:"FME_GEOM_POLYGON",
    8:"FME_GEOM_DONUT",
    256:"FME_GEOM_PIP",
    512:"FME_GEOM_AGGREGATE",
    }
session=pyfme.FMESession()
dialog=session.createDialog()
pr=dialog.sourcePrompt("","")
reader=pyfme.FMEReader(pr[0])
reader.open(pr[1],pr[2])
pw=dialog.destPrompt("","")
writer=pyfme.FMEWriter(pw[0])
writer.open(pw[1],pw[2])
theend=True
while theend:
    feature=pyfme.FMEFeature()
    theend=reader.readSchema(feature)
    if theend:
        print "\n------------%s----------" % "Schema Feature Infomation"
        print "Geometry Type: " + str(FME_GEOMETRY_TYPE[feature.getGeometryType()])
        print "Feature Type: " + str(feature.getFeatureType())
        print "CoordinateSystem Name: " + feature.getCoordinateSystem()
        csm=pyfme.FMECoordSysManager()
        csp=csm.getOGCCoordSys(feature.getCoordinateSystem())
        print "CoordinateSystem Information:\n%s\n" % csp
        writer.addSchema(feature)
theend=True
while theend:
    feature=pyfme.FMEFeature()
    theend=reader.read(feature)
    if theend:
        print "\n------------%s----------\n" % "Data Feature Infomation"
        print "GeometryType: " + str(FME_GEOMETRY_TYPE[feature.getGeometryType()])
        print "FeatureType: " + str(feature.getFeatureType())
        print "CoordinateSystem: " + feature.getCoordinateSystem()
        print "CoordinateSystem List:\n%s\n" % feature.getCoordinates()
        writer.write(feature)
reader.close()
writer.close()
del reader
del writer
运行环境 FME DESKTOP 2009 ,pyfme for python 2.5,python 2.5