geojson from points

[chris3522]

Hello, is there a command line way to draw a single geojson that surrounds the lat lon points. Lines can join the outermost points for example but there may be cases (red zone) where this is difficult. The lat lon points are contained in a csv (cf file). Many thanks

BV_GRAND-PARIS1FRANXL1S100.csv

[chris3522]

I try an intermediate solution by creating a bounding rectangle but I get an error with this command:

csvPoints = `./BV_GRAND-PARIS__1__FRANXL1S100.csv`
mapshaper.runCommandsXL(`-i ${csvPoints} -calc 'xmin=min(lon)' -calc 'ymin=min(lat)' -calc 'xmax=max(lon)' -calc 'ymax=max(lat)' -rectangle 'bbox=xmin,ymin,xmax,ymax'`)

because maphaper cannot find the variables xmin,ymin,xmax and ymax

[chris3522]

Here the error:

Error: Command failed:/mapshaper/bin/mapshaper -i ./BV_GRAND-PARIS__1__FRANXL1S100.csv  -calc 'xmin=min(LON),ymin=min(LAT),xmax=max(LON),ymax=max(LAT)' -rectangle 'bbox=xmin,ymin,xmax,ymax'
Allocating 8 GB of heap memory
[i] Auto-detected number fields: INDEX, LON, LAT
[calc] xmin=min(LON),ymin=min(LAT),xmax=max(LON),ymax=max(LAT):  2.23
Error: [rectangle] Missing rectangle extent
Run mapshaper -h to view help

    at ChildProcess.exithandler (node:child_process:422:12)
    at ChildProcess.emit (node:events:514:28)
    at maybeClose (node:internal/child_process:1105:16)
    at Socket.<anonymous> (node:internal/child_process:457:11)
    at Socket.emit (node:events:514:28)
    at Pipe.<anonymous> (node:net:337:12) {
  code: 1,
  killed: false,
  signal: null,
  cmd: "/nodejs/bin/node --max-old-space-size=8000 /mapshaper/bin/mapshaper -i ./BV_GRAND-PARIS__1__FRANXL1S100.csv  -calc 'xmin=min(LON),ymin=min(LAT),xmax=max(LON),ymax=max(LAT)' -rectangle 'bbox=xmin,ymin,xmax,ymax'"
}