r.in.wms: wmts epsg:4326 with urn fix, srs.py parameter fix (backported https://trac.osgeo.org/grass/changeset/63039)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@63257 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/r.in.wms/srs.py

@@ -33,7 +33,7 @@ class Srs:
         :param string axisorder: Force / override axisorder ('xy' or 'yx')
     """
     def __init__(self, srs):
-        self.id = crs
+        self.id = srs
         self.naming_authority = None
         self.category = None
         self.type = None
@@ -86,7 +86,25 @@ class Srs:
         if self.code in axisorder_yx:
                 self.axisorder = 'yx'
 
+    def getcode(self):
+        """Create for example "EPSG:4326" string and return back
+        :returns: String code formated in "authority:code"
+        """
 
+        if self.authority is not None and self.code is not None:
+            return '%s:%s' % (self.authority, self.code)
+        return None
+
+    def getcodeurn(self):
+        """Create for example "urn:ogc:def:crs:EPSG::4326" string and return back
+        :returns: String code formated in "urn:ogc:def:authority:code"
+        """
+
+        return 'urn:%s:def:crs:%s:%s:%s' % (
+                    (self.naming_authority and self.naming_authority or "ogc"),
+                                    (self.authority or ""),
+                                    (self.version or ""),
+                                    (self.code or ""))
 
 axisorder_yx = frozenset([
     4326,

scripts/r.in.wms/wms_drv.py

@@ -290,6 +290,9 @@ class BaseRequestMgr:
         if self.t_num_bbox['max_row'] > (mat_num_bbox['max_row']):
             self.t_num_bbox['max_row'] = int(mat_num_bbox['max_row']) 
 
+
+        grass.debug('t_num_bbox: min_col:%d max_col:%d min_row:%d max_row:%d' % (self.t_num_bbox['min_col'], self.t_num_bbox['max_col'], self.t_num_bbox['min_row'], self.t_num_bbox['max_row']), 3)
+
         num_tiles = (self.t_num_bbox['max_col'] - self.t_num_bbox['min_col'] + 1) * (self.t_num_bbox['max_row'] - self.t_num_bbox['min_row'] + 1) 
         grass.message(_('Fetching %d tiles with %d x %d pixel size per tile...') % (num_tiles, tile_size['x'], tile_size['y']))
 
@@ -444,7 +447,7 @@ class WMSRequestMgr(BaseRequestMgr):
         # CRS:84 and CRS:83 are exception (CRS:83 and CRS:27 need to be tested)
         if srs_param in [84, 83] or version != '1.3.0':
             return bbox
-        elif Srs('epsg:' + str(srs_param)).axisorder == 'yx':
+        elif Srs(GetSRSParamVal(srs_param)).axisorder == 'yx':
             return self._flipBbox(bbox)
 
         return bbox
@@ -505,7 +508,7 @@ class WMTSRequestMgr(BaseRequestMgr):
         mat_num_bbox = self._getMatSize(tile_mat, mat_set_link)
 
         # initialize data needed for iteration through tiles
-        self._computeRequestData(tile_mat, params, bbox, mat_num_bbox)
+        self._computeRequestData(tile_mat, params, bbox, mat_num_bbox, self._getMatSetSrs(mat_set))
 
     def GetMapRegion(self):
         """!Get size in pixels and bounding box of raster where all tiles will be merged.
@@ -540,8 +543,8 @@ class WMTSRequestMgr(BaseRequestMgr):
                 mat_set_id = mat_set.find(self.xml_ns.NsOws('Identifier')).text 
                 if mat_set_id != mat_set_link_id:
                     continue
-                mat_set_srs = mat_set.find(self.xml_ns.NsOws('SupportedCRS')).text
-                if mat_set_srs.lower() == ("EPSG:"+ str(srs)).lower():
+                mat_set_srs = self._getMatSetSrs(mat_set)
+                if Srs(mat_set_srs).getcode() == (GetSRSParamVal(srs)).upper():
                     suitable_mat_sets.append([mat_set, link])
 
         if not suitable_mat_sets:
@@ -549,6 +552,10 @@ class WMTSRequestMgr(BaseRequestMgr):
 
         return suitable_mat_sets # [[TileMatrixSet, TileMatrixSetLink], ....]
 
+    def _getMatSetSrs(self, mat_set):
+
+        return mat_set.find(self.xml_ns.NsOws('SupportedCRS')).text
+
     def _findTileMats(self, tile_mats, region, bbox):
         """!Find best tile matrix set for requested resolution.
         """        
@@ -638,7 +645,7 @@ class WMTSRequestMgr(BaseRequestMgr):
                 break
         return mat_num_bbox
 
-    def _computeRequestData(self, tile_mat, params, bbox, mat_num_bbox):
+    def _computeRequestData(self, tile_mat, params, bbox, mat_num_bbox, mat_set_srs):
         """!Initialize data needed for iteration through tiles.
         """  
         scale_den = float(tile_mat.find(self.xml_ns.NsWmts('ScaleDenominator')).text)
@@ -651,6 +658,15 @@ class WMTSRequestMgr(BaseRequestMgr):
         tl_corner['minx'] = float(tl_str[0])
         tl_corner['maxy'] = float(tl_str[1])
 
+        #TODO do it more generally WMS cap parser may use it in future(not needed now)???
+        s = Srs(mat_set_srs) #NOTE not used params['srs'], it is just number, encoding needed
+        # TODO needs to be tested, tried only on http://www.landesvermessung.sachsen.de/geoserver/gwc/service/wmts?:
+        if s.getcode() == 'EPSG:4326' and s.encoding in ('uri', 'urn'):
+            grass.warning('switch')
+            (tl_corner['minx'], tl_corner['maxy']) = (tl_corner['maxy'], tl_corner['minx'])
+        else:
+            grass.warning('no switch')
+
         tile_span = {}
         self.tile_size = {}