MarkLogic 12 Product Documentation
cts.polygon

cts.polygon(
   vertices as (cts.point*|xs.string)
) as cts.polygon

Summary

Returns a geospatial polygon value.

Parameters
vertices	The vertices of the polygon, given in order. No edge may cover more than 180 degrees of either latitude or longitude. The polygon as a whole may not encompass both poles. These constraints are necessary to ensure an unambiguous interpretation of the polygon. There must be at least three vertices. The first vertex should be identical to the last vertex to close the polygon. Alternatively, the vertices may be provided as a string that follows the well-known text (WKT) scheme for a polygon.

Parameters

vertices

The vertices of the polygon, given in order. No edge may cover more than 180 degrees of either latitude or longitude. The polygon as a whole may not encompass both poles. These constraints are necessary to ensure an unambiguous interpretation of the polygon. There must be at least three vertices. The first vertex should be identical to the last vertex to close the polygon. Alternatively, the vertices may be provided as a string that follows the well-known text (WKT) scheme for a polygon.

Example

// this polygon approximates the 94041 zip code
const points = [cts.point(0.373899653086420E+02, -0.122078578406509E+03),
    cts.point(0.373765400000000E+02, -0.122063772000000E+03),
    cts.point(0.373781400000000E+02, -0.122067972000000E+03),
    cts.point(0.373825650000000E+02, -0.122068365000000E+03),
    cts.point(0.373797400000000E+02, -0.122072172000000E+03),
    cts.point(0.373899400000000E+02, -0.122092573000000E+03),
    cts.point(0.373941400000000E+02, -0.122095573000000E+03),
    cts.point(0.373966400000000E+02, -0.122094173000000E+03),
    cts.point(0.373958400000000E+02, -0.122092373000000E+03),
    cts.point(0.374004400000000E+02, -0.122091273000000E+03),
    cts.point(0.374004400000000E+02, -0.122091273000000E+03),
    cts.point(0.373873400000000E+02, -0.122057872000000E+03),
    cts.point(0.373873400000000E+02, -0.122057872000000E+03),
    cts.point(0.373854400000000E+02, -0.122052672000000E+03),
    cts.point(0.373833400000000E+02, -0.122053372000000E+03),
    cts.point(0.373819400000000E+02, -0.122057572000000E+03),
    cts.point(0.373775400000000E+02, -0.122060872000000E+03),
    cts.point(0.373765400000000E+02, -0.122063772000000E+03) ];
cts.polygon(points);

Example

// Note that the points are in longitude-latitude pairs
const points = `POLYGON ((
    122.078578406509 37.3899653086420,
    122.063772000000 37.3765400000000,
    122.067972000000 37.3781400000000,
    ...
    122.078578406509 37.3899653086420
  ))`
cts.polygon(points)

MarkLogic 12 Product Documentationcts.polygon

Summary

See Also

Example

Example

MarkLogic 12 Product Documentation
cts.polygon