From c916c911ab472b83bc9d3fe85fe1fb0804635141 Mon Sep 17 00:00:00 2001 From: Yuri Astrakhan Date: Tue, 19 Mar 2019 00:46:33 -0400 Subject: [PATCH] Fix ST_ASMVT() signature for current PostGIS --- server.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/server.py b/server.py index 8122558..1a9784f 100644 --- a/server.py +++ b/server.py @@ -29,7 +29,7 @@ def GeneratePrepared(layers): layer_query = layer['Datasource']['table'].lstrip().rstrip() # Remove lead and trailing whitespace layer_query = layer_query[1:len(layer_query)-6] # Remove enough characters to remove first and last () and "AS t" layer_query = layer_query.replace("geometry", "ST_AsMVTGeom(geometry,!bbox!,4096,0,true) AS mvtgeometry") - base_query = "SELECT ST_ASMVT('"+layer['id']+"', 4096, 'mvtgeometry', tile) FROM ("+layer_query+" WHERE ST_AsMVTGeom(geometry, !bbox!,4096,0,true) IS NOT NULL) AS tile" + base_query = "SELECT ST_ASMVT(tile, '"+layer['id']+"', 4096, 'mvtgeometry') FROM ("+layer_query+" WHERE ST_AsMVTGeom(geometry, !bbox!,4096,0,true) IS NOT NULL) AS tile" queries.append(base_query.replace("!bbox!","$1").replace("!scale_denominator!","$2").replace("!pixel_width!","$3").replace("!pixel_height!","$4")) prepared = prepared + " UNION ALL ".join(queries) + ";" print(prepared) @@ -80,7 +80,7 @@ def get_mvt(zoom,x,y): layers = filter(None,list(itertools.chain.from_iterable(response))) final_tile = b'' for layer in layers: - final_tile = final_tile + io.BytesIO(layer).getvalue() + final_tile = final_tile + io.BytesIO(layer).getvalue() return final_tile class GetTile(tornado.web.RequestHandler):