source: TI05-delivery/ows_framework/trunk/ows_server/ows_server/models/geoUtilities.py @ 2970

from Utilities import wrapGetText

def geoString2float(x):
    if x[-1:] in 'NE':
        return float(x[:-1])
    elif x[-1:] in 'SW':
        return -float(x[:-1])
    else:
        return float(x)

class Bounding:
    ''' Separated out because this is NDG specific really 
    NB needs to support multiple bounding boxes properly and doesn't ... '''
    def __init__(self,elem,entity='stubB',getter=wrapGetText):
        '''Parse a data entity and load a bounding box '''
        match={'stubB':
                 {'North':'dgDataSummary/dgDataCoverage/dgSpatialCoverage/BoundingBox/LimitNorth',
                  'South':'dgDataSummary/dgDataCoverage/dgSpatialCoverage/BoundingBox/LimitSouth',
                  'West':'dgDataSummary/dgDataCoverage/dgSpatialCoverage/BoundingBox/LimitWest',
                  'East':'dgDataSummary/dgDataCoverage/dgSpatialCoverage/BoundingBox/LimitEast'},
                'DIF':
                 {'North':'Spatial_Coverage/Northernmost_Latitude',
                  'South':'Spatial_Coverage/Southernmost_Latitude',
                  'West':'Spatial_Coverage/Westernmost_Longitude',
                  'East':'Spatial_Coverage/Easternmost_Longitude'}
                }
        #try:
        North=getter(elem,match[entity]['North'])
        South=getter(elem,match[entity]['South'])
        West=getter(elem,match[entity]['West'])
        East=getter(elem,match[entity]['East'])
        self.boxes=[]
        self.nboxes=0
        
        self.set([North,West,East,South])
        
    def set(self,box):
        try: 
            self.boxes.append([geoString2float(i) for i in box])
            self.nboxes+=1
        except:
            pass
        
    def toHTMLbox(self):
        if self.nboxes!=1:
            return '<p> Record includes %s bounding boxes </p>'%self.nboxes
        else:
            return '''<table><tbody><tr><td colspan="2" align="center">%s</td></tr>
                      <tr><td>%s,</td><td>&nbsp;%s</td></tr>
                      <tr><td colspan="2" align="center">%s</td></tr>
                    </tbody></table>'''%tuple(self.boxes[0])
                    
    def __str__(self):
        return '%s,%s'%(self.nboxes,self.boxes)

class TimeCoverage:
    def __init__(self,tc):
        ''' Takes a tuple of (start date, end date, status) '''
        copy=[]
        for i in tc:
            if i=='': 
                copy.append('Unknown')
            else: copy.append(i)
        self.data=tuple(copy)
    def __str__(self):
        if self.data==('Unknown','Unknown','Unknown'): 
            return 'Unknown'
        else:
            print self.data
            return 'Start Date:%s, End Date:%s<br/>Status:%s'%self.data
    def __getitem__(self,i):
        return self.data[i]