function pDraw::drawDerivative
Search API
| 5.x pDraw.class.php | pDraw::drawDerivative($Format = NULL) |
File
- inc/
pchart/ pchart/ class/ pDraw.class.php, line 5231
Class
Code
function drawDerivative($Format = NULL)
{
$Offset = isset($Format ["Offset"]) ? $Format ["Offset"] : 10;
$SerieSpacing = isset($Format ["SerieSpacing"]) ? $Format ["SerieSpacing"] : 3;
$DerivativeHeight = isset($Format ["DerivativeHeight"]) ? $Format ["DerivativeHeight"] : 4;
$ShadedSlopeBox = isset($Format ["ShadedSlopeBox"]) ? $Format ["ShadedSlopeBox"] : FALSE;
$DrawBackground = isset($Format ["DrawBackground"]) ? $Format ["DrawBackground"] : TRUE;
$BackgroundR = isset($Format ["BackgroundR"]) ? $Format ["BackgroundR"] : 255;
$BackgroundG = isset($Format ["BackgroundG"]) ? $Format ["BackgroundG"] : 255;
$BackgroundB = isset($Format ["BackgroundB"]) ? $Format ["BackgroundB"] : 255;
$BackgroundAlpha = isset($Format ["BackgroundAlpha"]) ? $Format ["BackgroundAlpha"] : 20;
$DrawBorder = isset($Format ["DrawBorder"]) ? $Format ["DrawBorder"] : TRUE;
$BorderR = isset($Format ["BorderR"]) ? $Format ["BorderR"] : 0;
$BorderG = isset($Format ["BorderG"]) ? $Format ["BorderG"] : 0;
$BorderB = isset($Format ["BorderB"]) ? $Format ["BorderB"] : 0;
$BorderAlpha = isset($Format ["BorderAlpha"]) ? $Format ["BorderAlpha"] : 100;
$Caption = isset($Format ["Caption"]) ? $Format ["Caption"] : TRUE;
$CaptionHeight = isset($Format ["CaptionHeight"]) ? $Format ["CaptionHeight"] : 10;
$CaptionWidth = isset($Format ["CaptionWidth"]) ? $Format ["CaptionWidth"] : 20;
$CaptionMargin = isset($Format ["CaptionMargin"]) ? $Format ["CaptionMargin"] : 4;
$CaptionLine = isset($Format ["CaptionLine"]) ? $Format ["CaptionLine"] : FALSE;
$CaptionBox = isset($Format ["CaptionBox"]) ? $Format ["CaptionBox"] : FALSE;
$CaptionBorderR = isset($Format ["CaptionBorderR"]) ? $Format ["CaptionBorderR"] : 0;
$CaptionBorderG = isset($Format ["CaptionBorderG"]) ? $Format ["CaptionBorderG"] : 0;
$CaptionBorderB = isset($Format ["CaptionBorderB"]) ? $Format ["CaptionBorderB"] : 0;
$CaptionFillR = isset($Format ["CaptionFillR"]) ? $Format ["CaptionFillR"] : 255;
$CaptionFillG = isset($Format ["CaptionFillG"]) ? $Format ["CaptionFillG"] : 255;
$CaptionFillB = isset($Format ["CaptionFillB"]) ? $Format ["CaptionFillB"] : 255;
$CaptionFillAlpha = isset($Format ["CaptionFillAlpha"]) ? $Format ["CaptionFillAlpha"] : 80;
$PositiveSlopeStartR = isset($Format ["PositiveSlopeStartR"]) ? $Format ["PositiveSlopeStartR"] : 184;
$PositiveSlopeStartG = isset($Format ["PositiveSlopeStartG"]) ? $Format ["PositiveSlopeStartG"] : 234;
$PositiveSlopeStartB = isset($Format ["PositiveSlopeStartB"]) ? $Format ["PositiveSlopeStartB"] : 88;
$PositiveSlopeEndR = isset($Format ["PositiveSlopeStartR"]) ? $Format ["PositiveSlopeStartR"] : 239;
$PositiveSlopeEndG = isset($Format ["PositiveSlopeStartG"]) ? $Format ["PositiveSlopeStartG"] : 31;
$PositiveSlopeEndB = isset($Format ["PositiveSlopeStartB"]) ? $Format ["PositiveSlopeStartB"] : 36;
$NegativeSlopeStartR = isset($Format ["NegativeSlopeStartR"]) ? $Format ["NegativeSlopeStartR"] : 184;
$NegativeSlopeStartG = isset($Format ["NegativeSlopeStartG"]) ? $Format ["NegativeSlopeStartG"] : 234;
$NegativeSlopeStartB = isset($Format ["NegativeSlopeStartB"]) ? $Format ["NegativeSlopeStartB"] : 88;
$NegativeSlopeEndR = isset($Format ["NegativeSlopeStartR"]) ? $Format ["NegativeSlopeStartR"] : 67;
$NegativeSlopeEndG = isset($Format ["NegativeSlopeStartG"]) ? $Format ["NegativeSlopeStartG"] : 124;
$NegativeSlopeEndB = isset($Format ["NegativeSlopeStartB"]) ? $Format ["NegativeSlopeStartB"] : 227;
$Data = $this->DataSet->getData();
list($XMargin, $XDivs) = $this->scaleGetXSettings();
if ($Data ["Orientation"] == SCALE_POS_LEFTRIGHT) {
$YPos = $this->DataSet->Data ["GraphArea"]["Y2"] + $Offset;
}
else {
$XPos = $this->DataSet->Data ["GraphArea"]["X2"] + $Offset;
}
foreach ($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"];
$Weight = $Serie ["Weight"];
$AxisID = $Serie ["Axis"];
$PosArray = $this->scaleComputeY($Serie ["Data"], array("AxisID" => $Serie ["Axis"]));
if ($Data ["Orientation"] == SCALE_POS_LEFTRIGHT)
{
if ($Caption)
{
if ($CaptionLine)
{
$StartX = floor($this->GraphAreaX1 -$CaptionWidth + $XMargin -$CaptionMargin);
$EndX = floor($this->GraphAreaX1 -$CaptionMargin + $XMargin);
$CaptionSettings = array("R" => $R, "G" => $G, "B" => $B, "Alpha" => $Alpha, "Ticks" => $Ticks, "Weight" => $Weight);
if ($CaptionBox) {
$this->drawFilledRectangle($StartX, $YPos, $EndX, $YPos + $CaptionHeight, array("R" => $CaptionFillR, "G" => $CaptionFillG, "B" => $CaptionFillB, "BorderR" => $CaptionBorderR, "BorderG" => $CaptionBorderG, "BorderB" => $CaptionBorderB, "Alpha" => $CaptionFillAlpha));
}
$this->drawLine($StartX + 2, $YPos + ($CaptionHeight / 2), $EndX -2, $YPos + ($CaptionHeight / 2), $CaptionSettings);
}
else {
$this->drawFilledRectangle($this->GraphAreaX1 -$CaptionWidth + $XMargin -$CaptionMargin, $YPos, $this->GraphAreaX1 -$CaptionMargin + $XMargin, $YPos + $CaptionHeight, array("R" => $R, "G" => $G, "B" => $B, "BorderR" => $CaptionBorderR, "BorderG" => $CaptionBorderG, "BorderB" => $CaptionBorderB));
}
}
if ($XDivs == 0) {
$XStep = ($this->GraphAreaX2 -$this->GraphAreaX1) / 4;
}
else {
$XStep = ($this->GraphAreaX2 -$this->GraphAreaX1 -$XMargin * 2) / $XDivs;
}
$X = $this->GraphAreaX1 + $XMargin;
$TopY = $YPos + ($CaptionHeight / 2) - ($DerivativeHeight / 2);
$BottomY = $YPos + ($CaptionHeight / 2) + ($DerivativeHeight / 2);
$StartX = floor($this->GraphAreaX1 + $XMargin);
$EndX = floor($this->GraphAreaX2 -$XMargin);
if ($DrawBackground) {
$this->drawFilledRectangle($StartX -1, $TopY -1, $EndX + 1, $BottomY + 1, array("R" => $BackgroundR, "G" => $BackgroundG, "B" => $BackgroundB, "Alpha" => $BackgroundAlpha));
}
if ($DrawBorder) {
$this->drawRectangle($StartX -1, $TopY -1, $EndX + 1, $BottomY + 1, array("R" => $BorderR, "G" => $BorderG, "B" => $BorderB, "Alpha" => $BorderAlpha));
}
if (!is_array($PosArray)) {
$Value = $PosArray;
$PosArray = "";
$PosArray [0] = $Value;
}
$RestoreShadow = $this->Shadow;
$this->Shadow = FALSE;
/* Determine the Max slope index */
$LastX = NULL;
$LastY = NULL;
$MinSlope = 0;
$MaxSlope = 1;
foreach ($PosArray as $Key => $Y)
{
if ($Y != VOID && $LastX != NULL)
{
$Slope = ($LastY - $Y);
if ($Slope > $MaxSlope) {
$MaxSlope = $Slope;
}
if ($Slope < $MinSlope) {
$MinSlope = $Slope;
}
}
if ($Y == VOID)
{
$LastX = NULL;
$LastY = NULL;
}
else
{
$LastX = $X;
$LastY = $Y;
}
}
$LastX = NULL;
$LastY = NULL;
$LastColor = NULL;
foreach ($PosArray as $Key => $Y)
{
if ($Y != VOID && $LastY != NULL)
{
$Slope = ($LastY - $Y);
if ($Slope >= 0)
{
$SlopeIndex = (100 / $MaxSlope) * $Slope;
$R = (($PositiveSlopeEndR - $PositiveSlopeStartR) / 100) * $SlopeIndex + $PositiveSlopeStartR;
$G = (($PositiveSlopeEndG - $PositiveSlopeStartG) / 100) * $SlopeIndex + $PositiveSlopeStartG;
$B = (($PositiveSlopeEndB - $PositiveSlopeStartB) / 100) * $SlopeIndex + $PositiveSlopeStartB;
}
elseif ($Slope < 0)
{
$SlopeIndex = (100 / abs($MinSlope)) * abs($Slope);
$R = (($NegativeSlopeEndR - $NegativeSlopeStartR) / 100) * $SlopeIndex + $NegativeSlopeStartR;
$G = (($NegativeSlopeEndG - $NegativeSlopeStartG) / 100) * $SlopeIndex + $NegativeSlopeStartG;
$B = (($NegativeSlopeEndB - $NegativeSlopeStartB) / 100) * $SlopeIndex + $NegativeSlopeStartB;
}
$Color = array("R" => $R, "G" => $G, "B" => $B);
if ($ShadedSlopeBox && $LastColor != NULL) // && $Slope != 0
{
$GradientSettings = array("StartR" => $LastColor ["R"], "StartG" => $LastColor ["G"], "StartB" => $LastColor ["B"], "EndR" => $R, "EndG" => $G, "EndB" => $B);
$this->drawGradientArea($LastX, $TopY, $X, $BottomY, DIRECTION_HORIZONTAL, $GradientSettings);
}
elseif (!$ShadedSlopeBox || $LastColor == NULL) { // || $Slope == 0
$this->drawFilledRectangle(floor($LastX), $TopY, floor($X), $BottomY, $Color);
}
$LastColor = $Color;
}
if ($Y == VOID)
{
$LastY = NULL;
}
else
{
$LastX = $X;
$LastY = $Y;
}
$X = $X + $XStep;
}
$YPos = $YPos + $CaptionHeight + $SerieSpacing;
}
else
{
if ($Caption)
{
$StartY = floor($this->GraphAreaY1 -$CaptionWidth + $XMargin -$CaptionMargin);
$EndY = floor($this->GraphAreaY1 -$CaptionMargin + $XMargin);
if ($CaptionLine)
{
$CaptionSettings = array("R" => $R, "G" => $G, "B" => $B, "Alpha" => $Alpha, "Ticks" => $Ticks, "Weight" => $Weight);
if ($CaptionBox) {
$this->drawFilledRectangle($XPos, $StartY, $XPos + $CaptionHeight, $EndY, array("R" => $CaptionFillR, "G" => $CaptionFillG, "B" => $CaptionFillB, "BorderR" => $CaptionBorderR, "BorderG" => $CaptionBorderG, "BorderB" => $CaptionBorderB, "Alpha" => $CaptionFillAlpha));
}
$this->drawLine($XPos + ($CaptionHeight / 2), $StartY + 2, $XPos + ($CaptionHeight / 2), $EndY -2, $CaptionSettings);
}
else {
$this->drawFilledRectangle($XPos, $StartY, $XPos + $CaptionHeight, $EndY, array("R" => $R, "G" => $G, "B" => $B, "BorderR" => $CaptionBorderR, "BorderG" => $CaptionBorderG, "BorderB" => $CaptionBorderB));
}
}
if ($XDivs == 0) {
$XStep = ($this->GraphAreaY2 -$this->GraphAreaY1) / 4;
}
else {
$XStep = ($this->GraphAreaY2 -$this->GraphAreaY1 -$XMargin * 2) / $XDivs;
}
$Y = $this->GraphAreaY1 + $XMargin;
$TopX = $XPos + ($CaptionHeight / 2) - ($DerivativeHeight / 2);
$BottomX = $XPos + ($CaptionHeight / 2) + ($DerivativeHeight / 2);
$StartY = floor($this->GraphAreaY1 + $XMargin);
$EndY = floor($this->GraphAreaY2 -$XMargin);
if ($DrawBackground) {
$this->drawFilledRectangle($TopX -1, $StartY -1, $BottomX + 1, $EndY + 1, array("R" => $BackgroundR, "G" => $BackgroundG, "B" => $BackgroundB, "Alpha" => $BackgroundAlpha));
}
if ($DrawBorder) {
$this->drawRectangle($TopX -1, $StartY -1, $BottomX + 1, $EndY + 1, array("R" => $BorderR, "G" => $BorderG, "B" => $BorderB, "Alpha" => $BorderAlpha));
}
if (!is_array($PosArray)) {
$Value = $PosArray;
$PosArray = "";
$PosArray [0] = $Value;
}
$RestoreShadow = $this->Shadow;
$this->Shadow = FALSE;
/* Determine the Max slope index */
$LastX = NULL;
$LastY = NULL;
$MinSlope = 0;
$MaxSlope = 1;
foreach ($PosArray as $Key => $X)
{
if ($X != VOID && $LastX != NULL)
{
$Slope = ($X - $LastX);
if ($Slope > $MaxSlope) {
$MaxSlope = $Slope;
}
if ($Slope < $MinSlope) {
$MinSlope = $Slope;
}
}
if ($X == VOID)
{
$LastX = NULL;
}
else
{
$LastX = $X;
}
}
$LastX = NULL;
$LastY = NULL;
$LastColor = NULL;
foreach ($PosArray as $Key => $X)
{
if ($X != VOID && $LastX != NULL)
{
$Slope = ($X - $LastX);
if ($Slope >= 0)
{
$SlopeIndex = (100 / $MaxSlope) * $Slope;
$R = (($PositiveSlopeEndR - $PositiveSlopeStartR) / 100) * $SlopeIndex + $PositiveSlopeStartR;
$G = (($PositiveSlopeEndG - $PositiveSlopeStartG) / 100) * $SlopeIndex + $PositiveSlopeStartG;
$B = (($PositiveSlopeEndB - $PositiveSlopeStartB) / 100) * $SlopeIndex + $PositiveSlopeStartB;
}
elseif ($Slope < 0)
{
$SlopeIndex = (100 / abs($MinSlope)) * abs($Slope);
$R = (($NegativeSlopeEndR - $NegativeSlopeStartR) / 100) * $SlopeIndex + $NegativeSlopeStartR;
$G = (($NegativeSlopeEndG - $NegativeSlopeStartG) / 100) * $SlopeIndex + $NegativeSlopeStartG;
$B = (($NegativeSlopeEndB - $NegativeSlopeStartB) / 100) * $SlopeIndex + $NegativeSlopeStartB;
}
$Color = array("R" => $R, "G" => $G, "B" => $B);
if ($ShadedSlopeBox && $LastColor != NULL)
{
$GradientSettings = array("StartR" => $LastColor ["R"], "StartG" => $LastColor ["G"], "StartB" => $LastColor ["B"], "EndR" => $R, "EndG" => $G, "EndB" => $B);
$this->drawGradientArea($TopX, $LastY, $BottomX, $Y, DIRECTION_VERTICAL, $GradientSettings);
}
elseif (!$ShadedSlopeBox || $LastColor == NULL) {
$this->drawFilledRectangle($TopX, floor($LastY), $BottomX, floor($Y), $Color);
}
$LastColor = $Color;
}
if ($X == VOID)
{
$LastX = NULL;
}
else
{
$LastX = $X;
$LastY = $Y;
}
$Y = $Y + $XStep;
}
$XPos = $XPos + $CaptionHeight + $SerieSpacing;
}
$this->Shadow = $RestoreShadow;
}
}
}