File

inc/pchart/pchart/class/pDraw.class.php, line 4234

Class

pDraw

Code

function drawAreaChart($Format = NULL) 
 {
  $DisplayValues = isset($Format ["DisplayValues"]) ? $Format ["DisplayValues"] : FALSE;
  $DisplayOffset = isset($Format ["DisplayOffset"]) ? $Format ["DisplayOffset"] : 2;
  $DisplayColor = isset($Format ["DisplayColor"]) ? $Format ["DisplayColor"] : DISPLAY_MANUAL;
  $DisplayR = isset($Format ["DisplayR"]) ? $Format ["DisplayR"] : 0;
  $DisplayG = isset($Format ["DisplayG"]) ? $Format ["DisplayG"] : 0;
  $DisplayB = isset($Format ["DisplayB"]) ? $Format ["DisplayB"] : 0;
  $ForceTransparency = isset($Format ["ForceTransparency"]) ? $Format ["ForceTransparency"] : 25;
  $AroundZero = isset($Format ["AroundZero"]) ? $Format ["AroundZero"] : TRUE;
  $Threshold = isset($Format ["Threshold"]) ? $Format ["Threshold"] : NULL;

  $this->LastChartLayout = CHART_LAST_LAYOUT_REGULAR;

  $Data = $this->DataSet->getData();
  list($XMargin, $XDivs) = $this->scaleGetXSettings();

  foreach ($Data ["Series"] as $SerieName => $Serie) 
   {
    if ($Serie ["isDrawable"] == TRUE && $SerieName != $Data ["Abscissa"]) 
     {
      $R = $Serie ["Color"]["R"];
      $G = $Serie ["Color"]["G"];
      $B = $Serie ["Color"]["B"];
      $Alpha = $Serie ["Color"]["Alpha"];
      $Ticks = $Serie ["Ticks"];
      if ($DisplayColor == DISPLAY_AUTO) {
        $DisplayR = $R;
        $DisplayG = $G;
        $DisplayB = $B;
      }

      $AxisID = $Serie ["Axis"];
      $Mode = $Data ["Axis"][$AxisID]["Display"];
      $Format = $Data ["Axis"][$AxisID]["Format"];
      $Unit = $Data ["Axis"][$AxisID]["Unit"];

      $PosArray = $this->scaleComputeY($Serie ["Data"], array("AxisID" => $Serie ["Axis"]));
      $YZero = $this->scaleComputeY(0, array("AxisID" => $Serie ["Axis"]));

      if ($Threshold != NULL) 
       {
        foreach ($Threshold as $Key => $Params) 
         {
          $Threshold [$Key]["MinX"] = $this->scaleComputeY($Params ["Min"], array("AxisID" => $Serie ["Axis"]));
          $Threshold [$Key]["MaxX"] = $this->scaleComputeY($Params ["Max"], array("AxisID" => $Serie ["Axis"]));
        }
      }

      $this->DataSet->Data ["Series"][$SerieName]["XOffset"] = 0;

      if ($Data ["Orientation"] == SCALE_POS_LEFTRIGHT) 
       {
        if ($YZero > $this->GraphAreaY2 -1) {
          $YZero = $this->GraphAreaY2 -1;
        }

        $Areas = "";
        $AreaID = 0;
        $Areas [$AreaID][] = $this->GraphAreaX1 + $XMargin;
        if ($AroundZero) {
          $Areas [$AreaID][] = $YZero;
        }
        else {
          $Areas [$AreaID][] = $this->GraphAreaY2 -1;
        }

        if ($XDivs == 0) {
          $XStep = ($this->GraphAreaX2 -$this->GraphAreaX1) / 4;
        }
        else {
          $XStep = ($this->GraphAreaX2 -$this->GraphAreaX1 -$XMargin * 2) / $XDivs;
        }
        $X = $this->GraphAreaX1 + $XMargin;
        $LastX = NULL;
        $LastY = NULL;

        if (!is_array($PosArray)) {
          $Value = $PosArray;
          $PosArray = "";
          $PosArray [0] = $Value;
        }
        foreach ($PosArray as $Key => $Y) 
         {
          if ($DisplayValues && $Serie ["Data"][$Key] != VOID) 
           {
            if ($Serie ["Data"][$Key] > 0) {
              $Align = TEXT_ALIGN_BOTTOMMIDDLE;
              $Offset = $DisplayOffset;
            }
            else {
              $Align = TEXT_ALIGN_TOPMIDDLE;
              $Offset = -$DisplayOffset;
            }
            $this->drawText($X, $Y -$Offset, $this->scaleFormat($Serie ["Data"][$Key], $Mode, $Format, $Unit), array("R" => $DisplayR, "G" => $DisplayG, "B" => $DisplayB, "Align" => $Align));
          }

          if ($Y == VOID && isset($Areas [$AreaID])) 
           {
            if ($LastX == NULL) 
             {
              $Areas [$AreaID][] = $X;
            }
            else 
             {
              $Areas [$AreaID][] = $LastX;
            }

            if ($AroundZero) {
              $Areas [$AreaID][] = $YZero;
            }
            else {
              $Areas [$AreaID][] = $this->GraphAreaY2 -1;
            }
            $AreaID++;
          }
          elseif ($Y != VOID) 
           {
            if (!isset($Areas [$AreaID])) 
             {
              $Areas [$AreaID][] = $X;
              if ($AroundZero) {
                $Areas [$AreaID][] = $YZero;
              }
              else {
                $Areas [$AreaID][] = $this->GraphAreaY2 -1;
              }
            }

            $Areas [$AreaID][] = $X;
            $Areas [$AreaID][] = $Y;
          }

          $LastX = $X;
          $X = $X + $XStep;
        }
        $Areas [$AreaID][] = $LastX;
        if ($AroundZero) {
          $Areas [$AreaID][] = $YZero;
        }
        else {
          $Areas [$AreaID][] = $this->GraphAreaY2 -1;
        }

        /* Handle shadows in the areas */
        if ($this->Shadow) 
         {
          $ShadowArea = "";
          foreach ($Areas as $Key => $Points) 
           {
            $ShadowArea [$Key] = "";
            foreach ($Points as $Key2 => $Value) 
             {
              if ($Key2 % 2 == 0) 
               {
                $ShadowArea [$Key][] = $Value + $this->ShadowX;
              }
              else 
               {
                $ShadowArea [$Key][] = $Value + $this->ShadowY;
              }
            }
          }

          foreach ($ShadowArea as $Key => $Points) {
            $this->drawPolygonChart($Points, array("R" => $this->ShadowR, "G" => $this->ShadowG, "B" => $this->ShadowB, "Alpha" => $this->Shadowa));
          };
        }

        $Alpha = $ForceTransparency != NULL ? $ForceTransparency : $Alpha;
        $Color = array("R" => $R, "G" => $G, "B" => $B, "Alpha" => $Alpha, "Threshold" => $Threshold);

        foreach ($Areas as $Key => $Points) {
          $this->drawPolygonChart($Points, $Color);
        };
      }
      else 
       {
        if ($YZero < $this->GraphAreaX1 + 1) {
          $YZero = $this->GraphAreaX1 + 1;
        }
        if ($YZero > $this->GraphAreaX2 -1) {
          $YZero = $this->GraphAreaX2 -1;
        }

        $Areas = "";
        $AreaID = 0;
        if ($AroundZero) {
          $Areas [$AreaID][] = $YZero;
        }
        else {
          $Areas [$AreaID][] = $this->GraphAreaX1 + 1;
        }
        $Areas [$AreaID][] = $this->GraphAreaY1 + $XMargin;

        if ($XDivs == 0) {
          $YStep = ($this->GraphAreaY2 -$this->GraphAreaY1) / 4;
        }
        else {
          $YStep = ($this->GraphAreaY2 -$this->GraphAreaY1 -$XMargin * 2) / $XDivs;
        }
        $Y = $this->GraphAreaY1 + $XMargin;
        $LastX = NULL;
        $LastY = NULL;

        if (!is_array($PosArray)) {
          $Value = $PosArray;
          $PosArray = "";
          $PosArray [0] = $Value;
        }
        foreach ($PosArray as $Key => $X) 
         {
          if ($DisplayValues && $Serie ["Data"][$Key] != VOID) 
           {
            if ($Serie ["Data"][$Key] > 0) {
              $Align = TEXT_ALIGN_BOTTOMMIDDLE;
              $Offset = $DisplayOffset;
            }
            else {
              $Align = TEXT_ALIGN_TOPMIDDLE;
              $Offset = -$DisplayOffset;
            }
            $this->drawText($X + $Offset, $Y, $this->scaleFormat($Serie ["Data"][$Key], $Mode, $Format, $Unit), array("Angle" => 270, "R" => $DisplayR, "G" => $DisplayG, "B" => $DisplayB, "Align" => $Align));
          }

          if ($X == VOID && isset($Areas [$AreaID])) 
           {
            if ($AroundZero) {
              $Areas [$AreaID][] = $YZero;
            }
            else {
              $Areas [$AreaID][] = $this->GraphAreaX1 + 1;
            }

            if ($LastY == NULL) 
             {
              $Areas [$AreaID][] = $Y;
            }
            else 
             {
              $Areas [$AreaID][] = $LastY;
            }

            $AreaID++;
          }
          elseif ($X != VOID) 
           {
            if (!isset($Areas [$AreaID])) 
             {
              if ($AroundZero) {
                $Areas [$AreaID][] = $YZero;
              }
              else {
                $Areas [$AreaID][] = $this->GraphAreaX1 + 1;
              }
              $Areas [$AreaID][] = $Y;
            }

            $Areas [$AreaID][] = $X;
            $Areas [$AreaID][] = $Y;
          }

          $LastX = $X;
          $LastY = $Y;
          $Y = $Y + $YStep;
        }
        if ($AroundZero) {
          $Areas [$AreaID][] = $YZero;
        }
        else {
          $Areas [$AreaID][] = $this->GraphAreaX1 + 1;
        }
        $Areas [$AreaID][] = $LastY;

        /* Handle shadows in the areas */
        if ($this->Shadow) 
         {
          $ShadowArea = "";
          foreach ($Areas as $Key => $Points) 
           {
            $ShadowArea [$Key] = "";
            foreach ($Points as $Key2 => $Value) 
             {
              if ($Key2 % 2 == 0) 
               {
                $ShadowArea [$Key][] = $Value + $this->ShadowX;
              }
              else 
               {
                $ShadowArea [$Key][] = $Value + $this->ShadowY;
              }
            }
          }

          foreach ($ShadowArea as $Key => $Points) {
            $this->drawPolygonChart($Points, array("R" => $this->ShadowR, "G" => $this->ShadowG, "B" => $this->ShadowB, "Alpha" => $this->Shadowa));
          };
        }

        $Alpha = $ForceTransparency != NULL ? $ForceTransparency : $Alpha;
        $Color = array("R" => $R, "G" => $G, "B" => $B, "Alpha" => $Alpha, "Threshold" => $Threshold);

        foreach ($Areas as $Key => $Points) {
          $this->drawPolygonChart($Points, $Color);
        };
      }
    }
  }
}