Template:BC Basemap: Difference between revisions
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[http://libcwms.gov.bc.ca/wmsconnector/com.esri.wsit.WMSServlet/ogc_layer_service?VERSION=1.1.0&request=GetMap&SRS=EPSG:4326&BBOX=-{{#expr:{{{long|123}}}+0.5*{{{width|10}}}/(111.12*0.6427)}},{{#expr:{{{lat|50}}}-0.5*{{{height|10}}}/111.12}},-{{#expr:{{{long|123}}}-0.5*{{{width|10}}}/(111.12*0.6427)}},{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}}&WIDTH={{#expr:{{{width|10}}}*{{{scale|100}}}}}&HEIGHT={{#expr:{{{height|10}}}*{{{scale|100}}}}}&LAYERS=TRIM_EBM_OCEAN,TRIM_EBM_WATERBODIES,TRIM_EBM_WATERCOURSES,TRIM_EBM_WETLANDS,TWTR_LINES,TTRN_LINES,TCVR_POINTS,TCTR_LINES,TTRN_POINTS,TSRF_POINTS,TCTR_POINTS,WHSE_BASEMAPPING.TRIM_TEXT_ANNO,TWTR_ANNO,TTRN_ANNO,TSRF_ANNO,TMISC_ANNO,TCVR_ANNO,TCUL_ANNO,TCTR_ANNO,BCGS_GRID,BCGS_GRIDNTS_BC_COASTLINE_POLYS_125M,NTS_BC_RIV_LAKE_WET_POLYS_125M,NTS_BC_COASTLINE_LINES_125M,NTS_BC_CONTOUR_LINES_125M,NTS_BC_MANMADE_LINES_125M,NTS_BC_TRANSPORT_LINES_125M,NTS_BC_TRANSPORT_POINTS_125M,NTS_BC_WATER_POINTS_125M,NTS_BC_LANDFORM_POINTS_125M,NTS_BC_ANNO,NTS_GRID,BC_RIV_LAKE_WET_POLYS_500M,BC_WATER_LINES_500M,BC_TRANSPORT_LINES_500M,BC_PROV_BOUNDARIES_LINES_500M,BC_MANMADE_LINES_500M,BC_MAJOR_CITIES_POINTS_500M,BC_WATER_POINTS_500M,BC_TRANSPORT_POINTS_500M,BC_SPOT_ELEVATION_POINTS_500M,BC_MANMADE_POINTS_500M,BC_WATER_POLYS_5KM,BC_BASEMAP_LINES_5KM_water,BC_BASEMAP_LINES_5KM_transport,BC_BASEMAP_LINES_5KM_boundary,DBM_7H_MIL_POPULATION_POINT,DBM_7H_MIL_BOUNDARIES_LINE,DBM_7H_MIL_DRAINAGE_LINE,DBM_7H_MIL_DRAINAGE_POLY,DBM_7H_MIL_ROADS_LINE,DBM_7H_MIL_PARK_POLY,DBM_7H_MIL_POLITICAL_POLY_PS,DBM_7H_MIL_POLITICAL_POLY_BC,DBM_7H_MIL_BATHYMETRIC_POLY,&STYLES=&FORMAT=PNG {{{text|BC Basemap}}}] | [http://libcwms.gov.bc.ca/wmsconnector/com.esri.wsit.WMSServlet/ogc_layer_service?VERSION=1.1.0&request=GetMap&SRS=EPSG:4326&BBOX=-{{#expr:{{{long|123}}}+0.5*{{{width|10}}}/(111.12*0.6427)}},{{#expr:{{{lat|50}}}-0.5*{{{height|10}}}/111.12}},-{{#expr:{{{long|123}}}-0.5*{{{width|10}}}/(111.12*0.6427)}},{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}}&WIDTH={{#expr:{{{width|10}}}*{{{scale|100}}}}}&HEIGHT={{#expr:{{{height|10}}}*{{{scale|100}}}}}&LAYERS=TRIM_EBM_OCEAN,TRIM_EBM_WATERBODIES,TRIM_EBM_WATERCOURSES,TRIM_EBM_WETLANDS,TWTR_LINES,TTRN_LINES,TCVR_POINTS,TCTR_LINES,TTRN_POINTS,TSRF_POINTS,TCTR_POINTS,WHSE_BASEMAPPING.TRIM_TEXT_ANNO,TWTR_ANNO,TTRN_ANNO,TSRF_ANNO,TMISC_ANNO,TCVR_ANNO,TCUL_ANNO,TCTR_ANNO,BCGS_GRID,BCGS_GRIDNTS_BC_COASTLINE_POLYS_125M,NTS_BC_RIV_LAKE_WET_POLYS_125M,NTS_BC_COASTLINE_LINES_125M,NTS_BC_CONTOUR_LINES_125M,NTS_BC_MANMADE_LINES_125M,NTS_BC_TRANSPORT_LINES_125M,NTS_BC_TRANSPORT_POINTS_125M,NTS_BC_WATER_POINTS_125M,NTS_BC_LANDFORM_POINTS_125M,NTS_BC_ANNO,NTS_GRID,BC_RIV_LAKE_WET_POLYS_500M,BC_WATER_LINES_500M,BC_TRANSPORT_LINES_500M,BC_PROV_BOUNDARIES_LINES_500M,BC_MANMADE_LINES_500M,BC_MAJOR_CITIES_POINTS_500M,BC_WATER_POINTS_500M,BC_TRANSPORT_POINTS_500M,BC_SPOT_ELEVATION_POINTS_500M,BC_MANMADE_POINTS_500M,BC_WATER_POLYS_5KM,BC_BASEMAP_LINES_5KM_water,BC_BASEMAP_LINES_5KM_transport,BC_BASEMAP_LINES_5KM_boundary,DBM_7H_MIL_POPULATION_POINT,DBM_7H_MIL_BOUNDARIES_LINE,DBM_7H_MIL_DRAINAGE_LINE,DBM_7H_MIL_DRAINAGE_POLY,DBM_7H_MIL_ROADS_LINE,DBM_7H_MIL_PARK_POLY,DBM_7H_MIL_POLITICAL_POLY_PS,DBM_7H_MIL_POLITICAL_POLY_BC,DBM_7H_MIL_BATHYMETRIC_POLY,&STYLES=&FORMAT=PNG {{{text|BC Basemap}}}]<noinclude> | ||
<noinclude> | |||
Parameters: | Parameters: | ||
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1 nautical mile = 1.85200 | 1 nautical mile = 1.85200 | ||
cos50 = 0.6427 | cos50 = 0.6427 | ||
test calculations: | |||
*{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}} | *{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}} | ||
Revision as of 18:15, 20 February 2008
Parameters:
- lat: lattitude of the center of the map (default:50.00)
- long: longitude of the center of the map (default:123.00}
- height: height of the map in km (default:10km)
- width: width of the map in km (default:10km)
- scale: map scale in pixels / km (default:100 pixels/km)
- link: text to appear in the link
calculation notes
1 degree lattitude = 60 nautical miles = 111.12km 1 nautical mile = 1.85200 cos50 = 0.6427
test calculations:
- 50.044996400288
- 49.955003599712
- -123.07001151437
- -122.92998848563
- 1000
- 1000
Note: 0.6427 = cosine (50). This is required to adjust the longitude scale since the real world distance for one degree of longitude is proportional to the cosine of the lattitude. Ideally this would be a call to a cosine function but I don't think the wiki can do that so I've pre-programmed it to 50 degrees lattitude for now.