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}}}+{{{width|.2}}}/2}},{{#expr:{{{lat|50}}}-{{{height|.1}}}/2}},-{{#expr:{{{long|123}}}-{{{width|.2}}}/2}},{{#expr:{{{lat|50}}}+{{{height|.1}}}/2}}&WIDTH={{#expr:{{{width|.2}}}*{{{scale|20000}}}*0.6427}}&HEIGHT={{#expr:{{{height|.1}}}*{{{scale|20000}}}}}&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}}}]
{{#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>


Parameters:
==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 nautical mile = 1.85200
*1 degree lattitude = 60 nautical miles = 111.12km
cos50 = 0.6427
*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*0.6427)}}
*-{{#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*0.6427)}}
*-{{#expr:{{{long|123}}}-0.5*{{{width|10}}}/(111.12*{{#cos: ({{{lat|50.1}}}*{{#const:pi}}/180)}})}}
*{{#expr:{{{width|.1}}}*{{{scale|20000}}}0.6427}}
*{{#expr:{{{width|5}}}*{{{scale|120}}}}}
*{{#expr:{{{height|.1}}}*{{{scale|20000}}}}}
*{{#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==


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.
For help with layer names, see [[online mapping#Provincial Basemap WMS]]
</noinclude>
</noinclude>

Latest revision as of 21:08, 23 July 2008

Expression error: Unrecognized punctuation character "{".&HEIGHT=1222.3199999999&FORMAT=PNG BC Basemap

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

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