function pSpring::center in Visitors 7.2

Same name and namespace in other branches

1. 7 pChart/class/pSpring.class.php \pSpring::center()

1 call to pSpring::center()

pSpring::drawSpring in pChart/class/pSpring.class.php

File

pChart/class/pSpring.class.php, line 602

Class

pSpring

Code

function center() {

  /* Determine the real center */
  $TargetCenterX = ($this->X2 - $this->X1) / 2 + $this->X1;
  $TargetCenterY = ($this->Y2 - $this->Y1) / 2 + $this->Y1;

  /* Get current boundaries */
  $XMin = $this->X2;
  $XMax = $this->X1;
  $YMin = $this->Y2;
  $YMax = $this->Y1;
  foreach ($this->Data as $Key => $Settings) {
    $X = $Settings["X"];
    $Y = $Settings["Y"];
    if ($X < $XMin) {
      $XMin = $X;
    }
    if ($X > $XMax) {
      $XMax = $X;
    }
    if ($Y < $YMin) {
      $YMin = $Y;
    }
    if ($Y > $YMax) {
      $YMax = $Y;
    }
  }
  $CurrentCenterX = ($XMax - $XMin) / 2 + $XMin;
  $CurrentCenterY = ($YMax - $YMin) / 2 + $YMin;

  /* Compute the offset to apply */
  $XOffset = $TargetCenterX - $CurrentCenterX;
  $YOffset = $TargetCenterY - $CurrentCenterY;

  /* Correct the points position */
  foreach ($this->Data as $Key => $Settings) {
    $this->Data[$Key]["X"] = $Settings["X"] + $XOffset;
    $this->Data[$Key]["Y"] = $Settings["Y"] + $YOffset;
  }
}