lawn_bezier: Curve a linestring

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

Description

Takes a data-LineString and returns a curved version by applying a Bezier spline algorithm.

Usage

lawn_bezier(line, resolution = 10000L, sharpness = 0.85, lint = FALSE)

Arguments

line	A data-Feature with a single data-LineString
resolution	Time in milliseconds between points
sharpness	A measure of how curvy the path should be between splines
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 data-LineString curved line.

See Also

Other transformations: lawn_buffer(), lawn_concave(), lawn_convex(), lawn_difference(), lawn_intersect(), lawn_merge(), lawn_simplify(), lawn_union()

Examples

pts <- '[
   [-21.964416, 64.148203],
   [-21.956176, 64.141316],
   [-21.93901, 64.135924],
   [-21.927337, 64.136673]
]'
lawn_bezier(lawn_linestring(pts))
lawn_bezier(lawn_linestring(pts), 9000L)
lawn_bezier(lawn_linestring(pts), 9000L, 0.65)
## Not run: 
lawn_bezier(lawn_linestring(pts)) %>% view
lawn_featurecollection(list(lawn_linestring(pts),
  lawn_bezier(lawn_linestring(pts)))) %>% view

## End(Not run)

Example output

<LineString>
  Bounding box: -22.0 64.1 -21.9 64.1
  No. points: 1000
  Properties: NULL
<LineString>
  Bounding box: -22.0 64.1 -21.9 64.1
  No. points: 900
  Properties: NULL
<LineString>
  Bounding box: -22.0 64.1 -21.9 64.1
  No. points: 900
  Properties: NULL

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