labelTools.py 文件源码

def createTruthPixelPolyPickle(truthPoly, pickleLocation=''):
    # returns dictionary with list of minX, maxX, minY, maxY

    if pickleLocation=='':
        extension = os.path.splitext(truthPoly)[1]
        pickleLocation = truthPoly.replace(extension, 'PixPoly.p')
    if truthPoly != '':
        # get Source Line File Information
        shapef = ogr.Open(truthPoly, 0)
        truthLayer = shapef.GetLayer()
        envList = []

        for tmpFeature in truthLayer:
            tmpGeom = tmpFeature.GetGeometryRef()
            env = tmpGeom.GetEvnelope()
            envList.append(env)

        envArray = np.asarray(envList)
        envelopeData = {'minX': envArray[:,0],
                        'maxX': envArray[:,1],
                        'minY': envArray[:,2],
                        'maxY': envArray[:,3]
                        }


        with open(pickleLocation, 'wb') as f:
            pickle.dump(envelopeData, f)
            # get Source Line File Information