Function snapRound

stackgl_modules/index.js:9188–9213

(points, edges, useColor)

// Repeat until convergence
function snapRound (points, edges, useColor) {
  // 1. find edge crossings
  var edgeBounds = boundEdges(points, edges)
  var crossings = getCrossings(points, edges, edgeBounds)

  // 2. find t-junctions
  var vertBounds = boundPoints(points)
  var tjunctions = getTJunctions(points, edges, edgeBounds, vertBounds)

  // 3. cut edges, construct rational points
  var ratPoints = cutEdges(points, edges, crossings, tjunctions, useColor)

  // 4. dedupe verts
  var labels = dedupPoints(points, ratPoints, vertBounds)

  // 5. dedupe edges
  dedupEdges(edges, labels, useColor)

  // 6. check termination
  if (!labels) {
    return (crossings.length > 0 || tjunctions.length > 0)
  }

  // More iterations necessary
  return true
}

// Main loop, runs PSLG clean up until completion
function cleanPSLG (points, edges, colors) {