Conversion from set of points to Curve (Not Nurb curve) and point for Grasshopper definition

Grasshopper
1 
const crvPoints = new rhino.Point3dList()

  let len = cpoints.length

  let zero = 0

  for(let i = 0; i< len - 2; i+=2){

    crvPoints.add(cpoints[i],cpoints[i+1],0)

  }

  crvPoints.add(cpoints[0],cpoints[1],0)

  let epoint1 = (cpoints[len-2],cpoints[len-1],0)

  let epoint = [];

  let pt = "{\"X\":"+cpoints[len-2]+",\"Y\":"+cpoints[len-1]+"}";

  epoint.push(pt);

  const nCrv = rhino.Curve.create( false, 1, crvPoints)

  const crvData = JSON.stringify( nCrv.encode() )

  param1.append([0],[ crvData ])

  param2.append([0],[ epoint1 ])

  let trees = []

    trees.push(param1)

    //trees.push(param2)

    console.log(trees)

    RhinoCompute.Grasshopper.evaluateDefinition(definition, trees).then(result => {

        console.log(result)

    })

}

rhino3dm().then( async m => {

  console.log('Loaded rhino3dm.')

  rhino = m // global

  RhinoCompute.url = "http://localhost:8081/" // Rhino.Compute server url

  RhinoCompute.apiKey = "" // your Rhino.Compute server api key

  // source a .ghx file in the same directory

  let url = 'curve as input.gh'

  let res = await fetch(url)

  let buffer = await res.arrayBuffer()

  definition = new Uint8Array(buffer)

})
2

I am not able to create a normal curve from a set of points in Javascript. Please suggest a solution for this.

3

Javascript?

4

What is a normal curve?

If you are just trying to make a polyline curve, then just Polyline, instead of a Point3dList, can then use Polyline.toPolylineCurve() to create your curve.

– Dale