示例#1
0
def shaperead(fn, encoding=None):   
    '''
    Returns a layer readed from a shape file.
    
    :param fn: (*string*) The shape file name (.shp).
    :param encoding: (*string*) Encoding
    
    :returns: (*MILayer*) The created layer.
    '''
    if not fn.endswith('.shp'):
        fn = fn + '.shp'
    if not os.path.exists(fn):
        fn = os.path.join(migl.mapfolder, fn)
        
    if os.path.exists(fn):        
        try:
            if encoding is None:
                layer = MILayer(MapDataManage.readMapFile_ShapeFile(fn))
            else:
                layer = MILayer(MapDataManage.readMapFile_ShapeFile(fn, encoding))
            if not layer.legend() is None:
                lb = layer.legend().getLegendBreaks()[0]
                if lb.getBreakType() == BreakTypes.PolygonBreak:
                    lb.setDrawFill(False)
            return layer
        except:
            raise
    else:
        print 'File not exists: ' + fn
        raise
示例#2
0
文件: migeo.py 项目: Yaqiang/plotjy
def georead(fn):
    '''
    Returns a layer readed from a supported geo-data file.
    
    :param fn: (*string*) The supported geo-data file name (shape file, wmp, geotiff, image, bil...).
    
    :returns: (*MILayer*) The created layer.
    '''
    if not os.path.exists(fn):
        mapfolder = os.path.join(os.path.dirname(os.path.abspath(__file__)), '../map')
        fn = os.path.join(mapfolder, fn)
        
    if os.path.exists(fn):        
        try:
            layer = MILayer(MapDataManage.loadLayer(fn))
            if not layer.legend() is None:
                lb = layer.legend().getLegendBreaks()[0]
                if lb.getBreakType() == BreakTypes.PolygonBreak:
                    lb.setDrawFill(False)
            return layer
        except:
            raise
    else:
        print 'File not exists: ' + fn
        raise IOError
示例#3
0
def shaperead(fn):   
    '''
    Returns a layer readed from a shape file.
    
    :param fn: (*string*) The shape file name (.shp).
    
    :returns: (*MILayer*) The created layer.
    '''
    if os.path.exists(fn):        
        try:
            layer = MILayer(MapDataManage.loadLayer(fn))
            if not layer.legend() is None:
                lb = layer.legend().getLegendBreaks()[0]
                if lb.getBreakType() == BreakTypes.PolygonBreak:
                    lb.setDrawFill(False)
            return layer
        except:
            raise
    else:
        print 'File not exists: ' + fn
        raise