function pDraw::drawCircle in Visitors 7

Same name and namespace in other branches

1. 7.2 pChart/class/pDraw.class.php \pDraw::drawCircle()

2 calls to pDraw::drawCircle()

pDraw::drawFilledCircle in pChart/class/pDraw.class.php

pDraw::drawShape in pChart/class/pDraw.class.php

File

pChart/class/pDraw.class.php, line 846

Class

pDraw

Code

function drawCircle($Xc, $Yc, $Height, $Width, $Format = "") {
  $R = isset($Format["R"]) ? $Format["R"] : 0;
  $G = isset($Format["G"]) ? $Format["G"] : 0;
  $B = isset($Format["B"]) ? $Format["B"] : 0;
  $Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
  $Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
  $Height = abs($Height);
  $Width = abs($Width);
  if ($Height == 0) {
    $Height = 1;
  }
  if ($Width == 0) {
    $Width = 1;
  }
  $Xc = floor($Xc);
  $Yc = floor($Yc);
  $RestoreShadow = $this->Shadow;
  if ($this->Shadow && $this->ShadowX != 0 && $this->ShadowY != 0) {
    $this->Shadow = FALSE;
    $this
      ->drawCircle($Xc + $this->ShadowX, $Yc + $this->ShadowY, $Height, $Width, array(
      "R" => $this->ShadowR,
      "G" => $this->ShadowG,
      "B" => $this->ShadowB,
      "Alpha" => $this->Shadowa,
      "Ticks" => $Ticks,
    ));
  }
  if ($Width == 0) {
    $Width = $Height;
  }
  if ($R < 0) {
    $R = 0;
  }
  if ($R > 255) {
    $R = 255;
  }
  if ($G < 0) {
    $G = 0;
  }
  if ($G > 255) {
    $G = 255;
  }
  if ($B < 0) {
    $B = 0;
  }
  if ($B > 255) {
    $B = 255;
  }
  $Step = 360 / (2 * PI * max($Width, $Height));
  $Mode = 1;
  $Cpt = 1;
  for ($i = 0; $i <= 360; $i = $i + $Step) {
    $X = cos($i * PI / 180) * $Height + $Xc;
    $Y = sin($i * PI / 180) * $Width + $Yc;
    if ($Ticks != NULL) {
      if ($Cpt % $Ticks == 0) {
        $Cpt = 0;
        if ($Mode == 1) {
          $Mode = 0;
        }
        else {
          $Mode = 1;
        }
      }
      if ($Mode == 1) {
        $this
          ->drawAntialiasPixel($X, $Y, array(
          "R" => $R,
          "G" => $G,
          "B" => $B,
          "Alpha" => $Alpha,
        ));
      }
      $Cpt++;
    }
    else {
      $this
        ->drawAntialiasPixel($X, $Y, array(
        "R" => $R,
        "G" => $G,
        "B" => $B,
        "Alpha" => $Alpha,
      ));
    }
  }
  $this->Shadow = $RestoreShadow;
}