Template:BC Basemap: Difference between revisions
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[http:// | {{#if:{{{lat|}}}| | ||
<noinclude> | [http://openmaps.gov.bc.ca/mapserver/base2?service=wms&request=getmap&LAYERS=TRIM_EBM_OCEAN,TRIM_EBM_WATERBODIES,TRIM_EBM_WATERCOURSES,TRIM_EBM_WETLANDS,TWTR_LINES,TTRN_LINES,TCVR_LINES,TCVR_POINTS,TCTR_LINES,TTRN_POINTS,TSRF_POINTS,TCTR_POINTS,TTXT_ANNO,TWTR_ANNO,TTRN_ANNO,TCVR_ANNO,TCUL_LINES,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_250K_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_ROADS_LINE,DBM_7H_MIL_PARK_POLY,DBM_7H_MIL_POLITICAL_POLY_PS,DBM_7H_MIL_POLITICAL_POLY_BC,DBM_7H_MIL_BATHYMETRIC_POLY&version=1.1.1&STYLES=&SRS=EPSG:4326&BBOX=-{{ #expr:{{{long|123}}}+0.5*{{{width|5}}}/(111.12*{{#cos: ({{{lat|50}}}*{{#const:pi}}/180)}})}},{{ #expr:{{{lat|50}}}-0.5*{{{height|5}}}/111.12}},-{{ #expr:{{{long|123}}}-0.5*{{{width|5}}}/(111.12*{{#cos: ({{{lat|50}}}*{{#const:pi}}/180)}})}},{{ #expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}}&WIDTH={{ #expr:{{{width|5}}}*{{{scale|110}}}}}&HEIGHT={{ #expr:{{{height|10}}}*{{{scale|110}}}}}&FORMAT=PNG {{{link|BC Basemap}}}]| | ||
[http://openmaps.gov.bc.ca/mapserver/base2?service=wms&request=getmap&LAYERS=TRIM_EBM_OCEAN,TRIM_EBM_WATERBODIES,TRIM_EBM_WATERCOURSES,TRIM_EBM_WETLANDS,TWTR_LINES,TTRN_LINES,TCVR_LINES,TCVR_POINTS,TCTR_LINES,TTRN_POINTS,TSRF_POINTS,TCTR_POINTS,TTXT_ANNO,TWTR_ANNO,TTRN_ANNO,TCVR_ANNO,TCUL_LINES,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_250K_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_ROADS_LINE,DBM_7H_MIL_PARK_POLY,DBM_7H_MIL_POLITICAL_POLY_PS,DBM_7H_MIL_POLITICAL_POLY_BC,DBM_7H_MIL_BATHYMETRIC_POLY&version=1.1.1&STYLES=&SRS=EPSG:4326&BBOX=-{{{west|123.05}}},{{{south|49.95}}},-{{{east|122.95}}},{{{north|50.05}}}&WIDTH={{ #expr:({{{west|123.05}}}-{{{east|122.95}}})*111.12*{{#cos: ({{{north|50.05}}}*{{#const:pi}}/180)}}*{{{scale|110}}}}}&HEIGHT={{ #expr:({{{north|50.05}}}-{{{south|49.95}}})*111.12*{{{scale|110}}}}}&FORMAT=PNG {{{link|BC Basemap}}}]}}<noinclude> | |||
==Notes== | |||
lat: lattitude of the center of the map | The WMS server limits the maximum size of the image. | ||
long: longitude of the center of the map | |||
height: height of the map in km | ==Parameters== | ||
width: width of the map in km | |||
scale: map scale in pixels / km | There are 2 options to specify the bounding box. Either use lat, long, width and height or use north, south, east and west. | ||
link: text to appear in the link | |||
*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:5km) | |||
*width: width of the map in km (default:5km) | |||
*scale: map scale in pixels / km (default:110 pixels/km). In order to get the most detailed contour lines (20m intervals), a minimum scale of 110 pixels/km is required. | |||
*link: text to appear in the link | |||
*north: lattitude of top of bounding box | |||
*south: lattitude of bottom of bounding box | |||
*east: lattitude of right side of bounding box | |||
*west: lattitude of left side of bounding box | |||
calculation notes | calculation notes | ||
1 degree lattitude = 60 nautical miles = 111.12km | *1 nautical mile = 1.85200km | ||
1 | *1 degree lattitude = 60 nautical miles = 111.12km | ||
*1 degree longitude = 111.12km * cos (lattitude) | |||
test calculations: | |||
*{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}} | *{{#expr:{{{lat|50}}}+0.5*{{{height|10}}}/111.12}} | ||
*{{#expr:{{{lat|50}}}-0.5*{{{height|10}}}/111.12}} | *{{#expr:{{{lat|50}}}-0.5*{{{height|10}}}/111.12}} | ||
*-{{#expr:{{{long|123}}}+0.5*{{{width|10}}}/(111.12* | *-{{#expr:{{{long|123}}}+0.5*{{{width|10}}}/(111.12*{{#cos: ({{{lat|50.1}}}*{{#const:pi}}/180)}})}} | ||
*-{{#expr:{{{long|123}}}-0.5*{{{width|10}}}/(111.12* | *-{{#expr:{{{long|123}}}-0.5*{{{width|10}}}/(111.12*{{#cos: ({{{lat|50.1}}}*{{#const:pi}}/180)}})}} | ||
*{{#expr:{{{width| | *{{#expr:{{{width|5}}}*{{{scale|120}}}}} | ||
*{{#expr:{{{height| | *{{#expr:{{{height|5}}}*{{{scale|120}}}}} | ||
*{{#expr:({{{north|50.1}}}-{{{south|49.9}}})*111.12*{{{scale|120}}}}} | |||
*{{#expr:({{{west|123.1}}}-{{{east|122.9}}})*111.12*{{#cos: ({{{north|50.1}}}*{{#const:pi}}/180)}}*{{{scale|120}}}}} | |||
*{{#const:pi}} | |||
*{{#cos: (50*{{#const:pi}}/180)}} | |||
==Known Layers== | |||
For help with layer names, see [[online mapping#Provincial Basemap WMS]] | |||
</noinclude> | </noinclude> | ||
Latest revision as of 21:08, 23 July 2008
Notes
The WMS server limits the maximum size of the image.
Parameters
There are 2 options to specify the bounding box. Either use lat, long, width and height or use north, south, east and west.
- 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:5km)
- width: width of the map in km (default:5km)
- scale: map scale in pixels / km (default:110 pixels/km). In order to get the most detailed contour lines (20m intervals), a minimum scale of 110 pixels/km is required.
- link: text to appear in the link
- north: lattitude of top of bounding box
- south: lattitude of bottom of bounding box
- east: lattitude of right side of bounding box
- west: lattitude of left side of bounding box
calculation notes
- 1 nautical mile = 1.85200km
- 1 degree lattitude = 60 nautical miles = 111.12km
- 1 degree longitude = 111.12km * cos (lattitude)
test calculations:
- 50.044996400288
- 49.955003599712
- -Expression error: Unrecognized punctuation character "{".
- -Expression error: Unrecognized punctuation character "{".
- 600
- 600
- 2666.88
- Expression error: Unrecognized punctuation character "{".
- {{#const:pi}}
- {{#cos: (50*{{#const:pi}}/180)}}
Known Layers
For help with layer names, see online mapping#Provincial Basemap WMS