Exposes a function to interpolate any number of points along a multi-segment line (LineString).
npm install line-interpolate-points
ST_LineInterpolatePoint() and Python Shapely's shapely.geometry.LineString.interpolate(). Here's an example!A range of points interpolated along a multi-segment line.
interpolateLineRange( ctrlPoints, number, offsetDist ).ctrlPoints is an array of 2D point arrays, like [ [ 5, 10 ], [ 7, 10 ], [ 14, 13 ] ]number is the number of points to interpolate (the endpoints included)offsetDist is an optional distance to move each interpolated point from its container line segment.minGap is an optional minimum distance to maintain between subsequent interpolated points (offsetDist is notnumber ifminGap.``javascript`
> var interpolateLineRange = require( 'line-interpolate-points' )
> interpolateLineRange( [ [ 3, 10 ], [ 4, 10 ] ], 2 )
[ [ 3, 10 ], [ 4, 10 ] ]
> interpolateLineRange( [ [ 3, 10 ], [ 4, 10 ] ], 4 )
[ [ 3, 10 ],
[ 3.3333333333333335, 10 ],
[ 3.666666666666667, 10 ],
[ 4, 10 ] ]
> interpolateLineRange( [ [ 4, 4 ], [ 4, 10 ], [ 7, 17 ] ], 6, 1 )
[ [ 3, 4 ],
[ 3, 6.723154621172782 ],
[ 3, 9.446309242345563 ],
[ 3.9354486533919397, 12.387971226535829 ],
[ 5.008151811686941, 14.890945262557498 ],
[ 6.080854969981942, 17.393919298579167 ] ]
`bash`
$ npm install
Please fork and pull request against upstream master on a feature branch. Please provide unit tests and script fixtures
in the test directory.
`bash`
$ npm test
Travis tests every release against node version 0.10`
