def getFileData(filename):
if not os.path.isfile(filename):
parser.error("the file '%s' does not exist" % (filename))
dataSource = ogr.Open(filename, 0) # 0 means read-only
if dataSource is None:
l.error('OGR failed to open ' + filename + ', format may be unsuported')
sys.exit(1)
myS57 = s57(None, dataSource)
global zoom
zoom = myS57.getZoom()
global lat
lat = myS57.getCenterPoint()[0]
return dataSource
def getFileData(filename):
if not os.path.isfile(filename):
parser.error("the file '%s' does not exist" % (filename))
dataSource = ogr.Open(filename, 0) # 0 means read-only
if dataSource is None:
l.error('OGR failed to open ' + filename +
', format may be unsuported')
sys.exit(1)
myS57 = s57(None, dataSource)
global zoom
zoom = myS57.getZoom()
global lat
lat = myS57.getCenterPoint()[0]
return dataSource
def __init__(self, directory):
fps = FilePathSearch(directory)
self.scalemap = {} #scale: path
self.scales = [] #list of unique scales
self.layermap = {} #path: layers
self.layers = [] #list of unique layers
self.zoommap = {} #zoom: path
self.zooms = [] #list of unique zooms
skiplayers = ["M_QUAL", "M_NSYS", "M_NPUB", "M_COVR", "DSID", "C_ASSO"]
self.geommap = {} #layer: geomtype
for s57path in fps.getfilePaths():
s57 = ogrS57info.s57(s57path)
scale = s57.getScale()
self.scalemap[scale] = self.scalemap.get(scale, [])
self.scalemap[scale].append(s57path)
zoom = s57.getZoom()
self.zoommap[zoom] = self.zoommap.get(zoom, [])
self.zoommap[zoom].append(s57path)
layers = s57.getLayerList()
for lyr in layers:
if skiplayers.count(lyr) > 0:
layers.remove(lyr)
self.layermap[s57path] = layers
for lyr in s57.getLayerList():
if self.layers.count(lyr) == 0 and skiplayers.count(lyr) == 0:
self.layers.append(lyr)
self.geommap[lyr] = s57.getLayerGeometryType(lyr)
for key in self.scalemap.keys():
self.scales.append(key)
for key in self.zoommap.keys():
self.zooms.append(key)
self.layers.sort()
self.scales.sort()
self.zooms.sort()
