MapProxy案例：图层合并

01 caches:
02   maplet_WorldCountry:
03     grids:
04     - webmercator
05     sources:
06     - maplet_WorldCountry
07   maplet_WorldRailway:
08     grids:
09     - webmercator
10     sources:
11     - maplet_WorldRailway
12   maplet_WorldRiver:
13     grids:
14     - webmercator
15     sources:
16     - maplet_WorldRiver
17   maplet_WorldRoad:
18     grids:
19     - webmercator
20     sources:
21     - maplet_WorldRoad
22   maplet_mulwold:
23     grids:
24     - webmercator
25     sources:
26     - maplet_WorldCountry
27     - maplet_WorldRailway
28     - maplet_WorldRiver
29     - maplet_WorldRoad
30   osm_cache:
31     grids:
32     - webmercator
33     sources:
34     - osm_wms
35 globals: null
36 grids:
37   webmercator:
38     base: GLOBAL_WEBMERCATOR
39 layers:
40 - name: osm
41   sources:
42   - osm_cache
43   title: Omniscale OSM WMS - osm.omniscale.net
44 - name: maplet_WorldRailway
45   sources:
46   - maplet_WorldRailway
47   title: maplet_WorldRailway
48 - name: maplet_WorldRoad
49   sources:
50   - maplet_WorldRoad
51   title: maplet_WorldRoad
52 - name: maplet_WorldCountry
53   sources:
54   - maplet_WorldCountry
55   title: maplet_WorldCountry
56 - name: maplet_mulwold
57   sources:
58   - maplet_mulwold
59   title: maplet_mulwold
60 - name: maplet_WorldRiver
61   sources:
62   - maplet_WorldRiver
63   title: maplet_WorldRiver
64 services:
65   demo: null
66   kml:
67     use_grid_names: true
68   tms:
69     origin: nw
70     use_grid_names: true
71   wms:
72     md:
73       abstract: This is a minimal MapProxy example.
74       title: MapProxy WMS Proxy
75   wmts: null
76 sources:
77   maplet_WorldCountry:
78     image:
79       transparent_color: '#ffffff'
80       transparent_color_tolerance: 0
81     req:
82       layers: lyr_WorldCountry
83       url: http://127.0.0.1/cgi-bin/mapserv?map=/gdata/mfile_world.map
84     type: wms
85   maplet_WorldRailway:
86     image:
87       transparent_color: '#ffffff'
88       transparent_color_tolerance: 0
89     req:
90       layers: lyr_WorldRailway
91       url: http://127.0.0.1/cgi-bin/mapserv?map=/gdata/mfile_world.map
92     type: wms
93   maplet_WorldRiver:
94     image:
95       transparent_color: '#ffffff'
96       transparent_color_tolerance: 0
97     req:
98       layers: lyr_WorldRiver
99       url: http://127.0.0.1/cgi-bin/mapserv?map=/gdata/mfile_world.map
100     type: wms
101   maplet_WorldRoad:
102     image:
103       transparent_color: '#ffffff'
104       transparent_color_tolerance: 0
105     req:
106       layers: lyr_WorldRoad
107       url: http://127.0.0.1/cgi-bin/mapserv?map=/gdata/mfile_world.map
108     type: wms
109   osm_wms:
110     req:
111       layers: osm
112       url: http://osm.omniscale.net/proxy/service?
113     type: wms