<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_dost2d89ia86v3rerh7vbgljj0, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
// returns best point
static Pt bwSpiralSearch(BWImage proto, IBWImage img, double instantWinThreshold default 1) {
  float best = -1;
  long bestPt = -1;
  int leewayX = img.getWidth()-proto.getWidth();
  int leewayY = img.getHeight()-proto.getHeight();
  LongIterator it = pixelSpiral_longIterator(leewayX, leewayY);
  while (it.hasNext()) {
    long xy = it.next();
    int x = firstIntFromLong(xy), y = secondIntFromLong(xy);
    float sim = bwImageSectionsSimilarity2(img, proto, x, y, best);
    print(x + "/" + y + ": " + sim);
    if (sim >= instantWinThreshold)
      ret longToPt(xy);
    if (sim >= best) {
      bestPt = xy;
      best = sim;
    }
  }
  ret longToPtUnlessMinus1(bestPt);
}