Function fitCameraToNodes

dashboard/graph/src/canvasHelpers.ts:106–138

(
  size: CanvasSize,
  sim: FramedSimulation,
  camera: Camera,
  smooth = false,
)

 * target instead of snapping, for per-frame tracking while the layout settles.
 */
export function fitCameraToNodes(
  size: CanvasSize,
  sim: FramedSimulation,
  camera: Camera,
  smooth = false,
) {
  if (sim.nodes.length === 0) return;
  let minX = Infinity;
  let minY = Infinity;
  let maxX = -Infinity;
  let maxY = -Infinity;
  for (const node of sim.nodes) {
    minX = Math.min(minX, node.x - node.radius);
    minY = Math.min(minY, node.y - node.radius);
    maxX = Math.max(maxX, node.x + node.radius);
    maxY = Math.max(maxY, node.y + node.radius);
  }
  const spanX = Math.max(1, maxX - minX);
  const spanY = Math.max(1, maxY - minY);
  const fitK = Math.min(size.width / spanX, size.height / spanY) * 0.88;
  const targetX = (minX + maxX) / 2;
  const targetY = (minY + maxY) / 2;
  const targetK = Math.min(5, Math.max(0.12, fitK));
  if (smooth) {
    camera.x += (targetX - camera.x) * 0.2;
    camera.y += (targetY - camera.y) * 0.2;
    camera.k += (targetK - camera.k) * 0.2;
  } else {
    camera.x = targetX;
    camera.y = targetY;
    camera.k = targetK;
  }
}

export function toWorldPoint(
  camera: Camera,