lawn_envelope: Calculate envelope around features

In lawn: Client for 'Turfjs' for 'Geospatial' Analysis

Description

Takes any number of features and returns a rectangular data-Polygon that encompasses all vertices.

Usage

lawn_envelope(fc, lint = FALSE)

Arguments

fc	A data-Feature or data-FeatureCollection
lint	(logical) Lint or not. Uses geojsonhint. Takes up increasing time as the object to get linted increases in size, so probably use by default for small objects, but not for large if you know they are good geojson objects. Default: FALSE

Value

a rectangular data-Feature<(data-Polygon)> that encompasses all vertices

See Also

Other measurements: lawn_along(), lawn_area(), lawn_bbox_polygon(), lawn_bbox(), lawn_bearing(), lawn_center_of_mass(), lawn_center(), lawn_centroid(), lawn_destination(), lawn_distance(), lawn_extent(), lawn_line_distance(), lawn_midpoint(), lawn_point_on_feature(), lawn_pt2line_distance(), lawn_square()

Examples

fc <- '{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "Location A"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.343, 39.984]
      }
    }, {
      "type": "Feature",
      "properties": {
        "name": "Location B"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.833, 39.284]
      }
    }, {
      "type": "Feature",
      "properties": {
        "name": "Location C"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-75.534, 39.123]
      }
    }
  ]
}'
lawn_envelope(fc)
## Not run: 
fc %>% view
lawn_envelope(fc) %>% view

## End(Not run)

lawn documentation built on Jan. 6, 2021, 5:07 p.m.