function pDraw::drawArrow in Visitors 7

Same name and namespace in other branches

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

3 calls to pDraw::drawArrow()

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

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

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

File

pChart/class/pDraw.class.php, line 1282

Class

pDraw

Code

function drawArrow($X1, $Y1, $X2, $Y2, $Format = "") {
  $FillR = isset($Format["FillR"]) ? $Format["FillR"] : 0;
  $FillG = isset($Format["FillG"]) ? $Format["FillG"] : 0;
  $FillB = isset($Format["FillB"]) ? $Format["FillB"] : 0;
  $BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : $FillR;
  $BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : $FillG;
  $BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : $FillB;
  $Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
  $Size = isset($Format["Size"]) ? $Format["Size"] : 10;
  $Ratio = isset($Format["Ratio"]) ? $Format["Ratio"] : 0.5;
  $TwoHeads = isset($Format["TwoHeads"]) ? $Format["TwoHeads"] : FALSE;
  $Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : FALSE;

  /* Calculate the line angle */
  $Angle = $this
    ->getAngle($X1, $Y1, $X2, $Y2);

  /* Override Shadow support, this will be managed internally */
  $RestoreShadow = $this->Shadow;
  if ($this->Shadow && $this->ShadowX != 0 && $this->ShadowY != 0) {
    $this->Shadow = FALSE;
    $this
      ->drawArrow($X1 + $this->ShadowX, $Y1 + $this->ShadowY, $X2 + $this->ShadowX, $Y2 + $this->ShadowY, array(
      "FillR" => $this->ShadowR,
      "FillG" => $this->ShadowG,
      "FillB" => $this->ShadowB,
      "Alpha" => $this->Shadowa,
      "Size" => $Size,
      "Ratio" => $Ratio,
      "TwoHeads" => $TwoHeads,
      "Ticks" => $Ticks,
    ));
  }

  /* Draw the 1st Head */
  $TailX = cos(($Angle - 180) * PI / 180) * $Size + $X2;
  $TailY = sin(($Angle - 180) * PI / 180) * $Size + $Y2;
  $Points = "";
  $Points[] = $X2;
  $Points[] = $Y2;
  $Points[] = cos(($Angle - 90) * PI / 180) * $Size * $Ratio + $TailX;
  $Points[] = sin(($Angle - 90) * PI / 180) * $Size * $Ratio + $TailY;
  $Points[] = cos(($Angle - 270) * PI / 180) * $Size * $Ratio + $TailX;
  $Points[] = sin(($Angle - 270) * PI / 180) * $Size * $Ratio + $TailY;
  $Points[] = $X2;
  $Points[] = $Y2;

  /* Visual correction */
  if ($Angle == 180 || $Angle == 360) {
    $Points[4] = $Points[2];
  }
  if ($Angle == 90 || $Angle == 270) {
    $Points[5] = $Points[3];
  }
  $ArrowColor = $this
    ->allocateColor($this->Picture, $FillR, $FillG, $FillB, $Alpha);
  ImageFilledPolygon($this->Picture, $Points, 4, $ArrowColor);
  $this
    ->drawLine($Points[0], $Points[1], $Points[2], $Points[3], array(
    "R" => $BorderR,
    "G" => $BorderG,
    "B" => $BorderB,
    "Alpha" => $Alpha,
  ));
  $this
    ->drawLine($Points[2], $Points[3], $Points[4], $Points[5], array(
    "R" => $BorderR,
    "G" => $BorderG,
    "B" => $BorderB,
    "Alpha" => $Alpha,
  ));
  $this
    ->drawLine($Points[0], $Points[1], $Points[4], $Points[5], array(
    "R" => $BorderR,
    "G" => $BorderG,
    "B" => $BorderB,
    "Alpha" => $Alpha,
  ));

  /* Draw the second head */
  if ($TwoHeads) {
    $Angle = $this
      ->getAngle($X2, $Y2, $X1, $Y1);
    $TailX2 = cos(($Angle - 180) * PI / 180) * $Size + $X1;
    $TailY2 = sin(($Angle - 180) * PI / 180) * $Size + $Y1;
    $Points = "";
    $Points[] = $X1;
    $Points[] = $Y1;
    $Points[] = cos(($Angle - 90) * PI / 180) * $Size * $Ratio + $TailX2;
    $Points[] = sin(($Angle - 90) * PI / 180) * $Size * $Ratio + $TailY2;
    $Points[] = cos(($Angle - 270) * PI / 180) * $Size * $Ratio + $TailX2;
    $Points[] = sin(($Angle - 270) * PI / 180) * $Size * $Ratio + $TailY2;
    $Points[] = $X1;
    $Points[] = $Y1;

    /* Visual correction */
    if ($Angle == 180 || $Angle == 360) {
      $Points[4] = $Points[2];
    }
    if ($Angle == 90 || $Angle == 270) {
      $Points[5] = $Points[3];
    }
    $ArrowColor = $this
      ->allocateColor($this->Picture, $FillR, $FillG, $FillB, $Alpha);
    ImageFilledPolygon($this->Picture, $Points, 4, $ArrowColor);
    $this
      ->drawLine($Points[0], $Points[1], $Points[2], $Points[3], array(
      "R" => $BorderR,
      "G" => $BorderG,
      "B" => $BorderB,
      "Alpha" => $Alpha,
    ));
    $this
      ->drawLine($Points[2], $Points[3], $Points[4], $Points[5], array(
      "R" => $BorderR,
      "G" => $BorderG,
      "B" => $BorderB,
      "Alpha" => $Alpha,
    ));
    $this
      ->drawLine($Points[0], $Points[1], $Points[4], $Points[5], array(
      "R" => $BorderR,
      "G" => $BorderG,
      "B" => $BorderB,
      "Alpha" => $Alpha,
    ));
    $this
      ->drawLine($TailX, $TailY, $TailX2, $TailY2, array(
      "R" => $BorderR,
      "G" => $BorderG,
      "B" => $BorderB,
      "Alpha" => $Alpha,
      "Ticks" => $Ticks,
    ));
  }
  else {
    $this
      ->drawLine($X1, $Y1, $TailX, $TailY, array(
      "R" => $BorderR,
      "G" => $BorderG,
      "B" => $BorderB,
      "Alpha" => $Alpha,
      "Ticks" => $Ticks,
    ));
  }

  /* Re-enable shadows */
  $this->Shadow = $RestoreShadow;
}