public function drawAntialiasPixel(Point $point, Color $color, ShadowProperties $shadowProperties, $alpha = 100)
{
/* Process shadows */
if ($shadowProperties->active) {
$this->drawAntialiasPixel(new Point($point->getX() + $shadowProperties->xDistance, $point->getY() + $shadowProperties->yDistance), $shadowProperties->color, ShadowProperties::NoShadow(), $shadowProperties->alpha);
if ($shadowProperties->blur != 0) {
$AlphaDecay = $shadowProperties->alpha / $shadowProperties->blur;
for ($i = 1; $i <= $shadowProperties->blur; $i++) {
$this->drawAntialiasPixel(new Point($point->getX() + $shadowProperties->xDistance - $i / 2, $point->getY() + $shadowProperties->yDistance - $i / 2), $shadowProperties->color, ShadowProperties::NoShadow(), $shadowProperties->alpha - $AlphaDecay * $i);
}
for ($i = 1; $i <= $shadowProperties->blur; $i++) {
$this->drawAntialiasPixel(new Point($point->getX() + $shadowProperties->xDistance + $i / 2, $point->getY() + $shadowProperties->yDistance + $i / 2), $shadowProperties->color, ShadowProperties::NoShadow(), $shadowProperties->alpha - $AlphaDecay * $i);
}
}
}
$Xi = floor($point->getX());
$Yi = floor($point->getY());
if ($Xi == $point->getX() && $Yi == $point->getY()) {
if ($alpha == 100) {
$C_Aliased = $this->allocateColor($color);
imagesetpixel($this->picture, $point->getX(), $point->getY(), $C_Aliased);
} else {
$this->drawAlphaPixel($point, $alpha, $color);
}
} else {
$Alpha1 = (1 - ($point->getX() - $Xi)) * (1 - ($point->getY() - $Yi)) * 100 / 100 * $alpha;
if ($Alpha1 > $this->antialiasQuality) {
$this->drawAlphaPixel(new Point($Xi, $Yi), $Alpha1, $color);
}
$Alpha2 = ($point->getX() - $Xi) * (1 - ($point->getY() - $Yi)) * 100 / 100 * $alpha;
if ($Alpha2 > $this->antialiasQuality) {
$this->drawAlphaPixel(new Point($Xi + 1, $Yi), $Alpha2, $color);
}
$Alpha3 = (1 - ($point->getX() - $Xi)) * ($point->getY() - $Yi) * 100 / 100 * $alpha;
if ($Alpha3 > $this->antialiasQuality) {
$this->drawAlphaPixel(new Point($Xi, $Yi + 1), $Alpha3, $color);
}
$Alpha4 = ($point->getX() - $Xi) * ($point->getY() - $Yi) * 100 / 100 * $alpha;
if ($Alpha4 > $this->antialiasQuality) {
$this->drawAlphaPixel(new Point($Xi + 1, $Yi + 1), $Alpha4, $color);
}
}
}
public function testDrawArea()
{
// Dataset definition
$DataSet = new pData();
$DataSet->addPoints(array(10, 9.4, 7.7, 5, 1.7, -1.7, -5, -7.7, -9.4, -10, -9.4, -7.7, -5, -1.8, 1.7), "Serie1");
$DataSet->addPoints(array(0, 3.4, 6.4, 8.699999999999999, 9.800000000000001, 9.800000000000001, 8.699999999999999, 6.4, 3.4, 0, -3.4, -6.4, -8.6, -9.800000000000001, -9.9), "Serie2");
$DataSet->addPoints(array(7.1, 9.1, 10, 9.699999999999999, 8.199999999999999, 5.7, 2.6, -0.9, -4.2, -7.1, -9.1, -10, -9.699999999999999, -8.199999999999999, -5.8), "Serie3");
$DataSet->addPoints(array("Jan", "Jan", "Jan", "Feb", "Feb", "Feb", "Mar", "Mar", "Mar", "Apr", "Apr", "Apr", "May", "May", "May"), "Serie4");
$DataSet->AddAllSeries();
$DataSet->SetAbscissaLabelSeries("Serie4");
$DataSet->SetSeriesName("Max Average", "Serie1");
$DataSet->SetSeriesName("Min Average", "Serie2");
$DataSet->SetSeriesName("Temperature", "Serie3");
$DataSet->SetYAxisName("Temperature");
$DataSet->SetXAxisName("Month of the year");
// Initialise the graph
$canvas = new TestCanvas();
$Test = new pChart(700, 230, $canvas);
$Test->reportWarnings("GD");
$Test->setFixedScale(-12, 12, 5);
$Test->setFontProperties("Fonts/tahoma.ttf", 8);
$Test->setGraphArea(65, 30, 570, 185);
$canvas->drawFilledRoundedRectangle(new Point(7, 7), new Point(693, 223), 5, new Color(240), 1, 0, ShadowProperties::NoShadow());
$backgroundStyle = new BackgroundStyle(new Color(255), TRUE);
$Test->drawGraphBackground($backgroundStyle);
$scaleStyle = new ScaleStyle(SCALE_NORMAL, new Color(150));
$Test->drawScale($DataSet, $scaleStyle, 0, 2, TRUE, 3);
$Test->drawGrid(new GridStyle(4, TRUE, new Color(230), 50));
// Draw the 0 line
$Test->setFontProperties("Fonts/tahoma.ttf", 6);
$Test->drawTreshold(0, new Color(143, 55, 72), TRUE, TRUE);
// Draw the area
$DataSet->RemoveSeries("Serie4");
$Test->drawArea($DataSet->GetData(), "Serie1", "Serie2", new Color(239, 238, 227), 50);
$DataSet->RemoveSeries("Serie3");
$Test->drawLineGraph($DataSet->GetData(), $DataSet->GetDataDescription());
// Draw the line graph
$Test->setLineStyle(1, 6);
$DataSet->RemoveAllSeries();
$DataSet->AddSeries("Serie3");
$Test->drawLineGraph($DataSet->GetData(), $DataSet->GetDataDescription());
$Test->drawPlotGraph($DataSet->GetData(), $DataSet->GetDataDescription(), 3, 2, new Color(255));
// Write values on Serie3
$Test->setFontProperties("Fonts/tahoma.ttf", 8);
$Test->writeValues($DataSet->GetData(), $DataSet->GetDataDescription(), "Serie3");
// Finish the graph
$Test->setFontProperties("Fonts/tahoma.ttf", 8);
$Test->drawLegend(590, 90, $DataSet->GetDataDescription(), new Color(255));
$Test->setFontProperties("Fonts/tahoma.ttf", 10);
$Test->drawTitle(60, 22, "example 15", new Color(50), 585);
// Add an image
$Test->drawFromPNG(dirname(__FILE__) . "/../Sample/logo.png", 584, 35);
$this->assertEquals('53b34d556af518230b7556e19349bd94', md5($canvas->getActionLog()));
}
/**
* This function draw a flat pie chart
* @param array Data (PieChart->getData())
* @param array Description (PieChart->getDataDescription())
* @param int X-Position of the Center
* @param int Y-Position of the Center
* @param int Radius of the cake
* @param const int Draw the Labels to the pies? PIE_LABELS, PIE_NOLABEL, PIE_PERCENTAGE, PIE_PERCENATGE_LABEL
* @param int Distance between the splices
* @param int number of decimals
* @param ShadowProperties
* @access public
*/
public function drawBasicPieGraph($Data, $DataDescription, $XPos, $YPos, $Radius = 100, $DrawLabels = PIE_NOLABEL, Color $color = null, $Decimals = 0, ShadowProperties $shadowProperties = null)
{
if ($shadowProperties == null) {
$shadowProperties = ShadowProperties::NoShadow();
}
if (empty($DataDescription->values)) {
throw new Exception("No values available in data description in drawBasicPieGraph()");
}
if ($color == null) {
$color = new Color(255, 255, 255);
}
/* Validate the Data and DataDescription array */
$this->validateDataDescription("drawBasicPieGraph", $DataDescription, FALSE);
$this->validateData("drawBasicPieGraph", $Data);
/* Determine pie sum */
$Series = 0;
$PieSum = 0;
foreach ($DataDescription->values as $Key2 => $ColName) {
if ($ColName != $DataDescription->getPosition()) {
$Series++;
foreach (array_keys($Data) as $Key) {
if (isset($Data[$Key][$ColName])) {
$PieSum = $PieSum + $Data[$Key][$ColName];
}
$iValues[] = $Data[$Key][$ColName];
}
}
}
/* Validate serie */
if ($Series != 1) {
throw new Exception("Pie chart can only accept one serie of data.");
}
/** @todo Proper exception type needed here */
$SpliceRatio = 360 / $PieSum;
$SplicePercent = 100 / $PieSum;
/* Calculate all polygons */
$Angle = 0;
$TopPlots = "";
foreach ($iValues as $Key => $Value) {
$TopPlots[$Key][] = $XPos;
$TopPlots[$Key][] = $YPos;
/* Process labels position & size */
$this->processLabelsPositionAndSize($DrawLabels, $Angle, $Value, $SpliceRatio, $SplicePercent, 0, $Decimals, $Radius, $XPos, $YPos, $shadowProperties);
/* Process pie slices */
for ($iAngle = $Angle; $iAngle <= $Angle + $Value * $SpliceRatio; $iAngle = $iAngle + 0.5) {
$TopX = cos($iAngle * M_PI / 180) * $Radius + $XPos;
$TopY = sin($iAngle * M_PI / 180) * $Radius + $YPos;
$TopPlots[$Key][] = $TopX;
$TopPlots[$Key][] = $TopY;
}
$TopPlots[$Key][] = $XPos;
$TopPlots[$Key][] = $YPos;
$Angle = $iAngle;
}
$PolyPlots = $TopPlots;
/* Set array values type to float --- PHP Bug with
* imagefilledpolygon casting to integer */
foreach ($TopPlots as $Key => $Value) {
foreach (array_keys($TopPlots[$Key]) as $Key2) {
settype($TopPlots[$Key][$Key2], "float");
}
}
/* Draw Top polygons */
foreach ($PolyPlots as $Key => $Value) {
$this->canvas->drawFilledPolygon($PolyPlots[$Key], (count($PolyPlots[$Key]) + 1) / 2, $this->palette->colors[$Key]);
}
$this->canvas->drawCircle(new Point($XPos - 0.5, $YPos - 0.5), $Radius, $color, $shadowProperties);
$this->canvas->drawCircle(new Point($XPos - 0.5, $YPos - 0.5), $Radius + 0.5, $color, $shadowProperties);
/* Draw Top polygons */
foreach ($TopPlots as $Key => $Value) {
for ($j = 0; $j <= count($TopPlots[$Key]) - 4; $j = $j + 2) {
$this->canvas->drawLine(new Point($TopPlots[$Key][$j], $TopPlots[$Key][$j + 1]), new Point($TopPlots[$Key][$j + 2], $TopPlots[$Key][$j + 3]), $color, $this->LineWidth, $this->LineDotSize, $shadowProperties);
}
}
}
require_once "../lib/CSVImporter.php";
require_once '../lib/GDCanvas.php';
require_once '../lib/BackgroundStyle.php';
// Definitions
$DataSet = new pData();
$canvas = new GDCanvas(700, 230);
$Chart = new pChart(700, 230, $canvas);
// Dataset definition
CSVImporter::ImportFromCSV($DataSet, "../sample/datawithtitle.csv", ",", array(1, 2, 3), TRUE, 0);
$DataSet->AddAllSeries();
$DataSet->setAbscissaLabelSeries();
// Initialise the graph
$Chart->setFontProperties("../Fonts/tahoma.ttf", 8);
$Chart->setGraphArea(60, 30, 680, 200);
$canvas->drawFilledRoundedRectangle(new Point(7, 7), new Point(693, 223), 5, new Color(240), 1, 0, ShadowProperties::NoShadow());
$canvas->drawRoundedRectangle(new Point(5, 5), new Point(695, 225), 5, new Color(230), 1, 0, ShadowProperties::NoShadow());
$Chart->drawGraphBackground(new BackgroundStyle(new Color(255), TRUE));
$Chart->drawScale($DataSet, ScaleStyle::DefaultStyle(), 0, 2);
$Chart->drawGrid(new GridStyle(4, TRUE, new Color(230, 230, 230), TRUE));
// Draw the 0 line
$Chart->setFontProperties("../Fonts/tahoma.ttf", 6);
$Chart->drawTreshold(0, new Color(143, 55, 72), TRUE, TRUE);
// Draw the area
$Chart->drawArea($DataSet, "Serie 1", "Serie 3", new Color(239, 238, 227));
// Draw the line graph
$Chart->drawLineGraph($DataSet->GetData(), $DataSet->GetDataDescription());
$Chart->drawPlotGraph($DataSet->GetData(), $DataSet->GetDataDescription(), 3, 2, new Color(255));
// Finish the graph
$Chart->setFontProperties("../Fonts/tahoma.ttf", 8);
$Chart->drawLegend(65, 35, $DataSet->GetDataDescription(), new Color(250));
$Chart->setFontProperties("../Fonts/tahoma.ttf", 10);
$DataSet = new pData();
$Canvas = new GDCanvas(700, 230);
$Chart = new pChart(700, 230, $Canvas);
// Dataset
$DataSet->AddPoints(array(1, 4, -3, 2, -3, 3, 2, 1, 0, 7, 4), "Serie1");
$DataSet->AddPoints(array(3, 3, -4, 1, -2, 2, 1, 0, -1, 6, 3), "Serie2");
$DataSet->AddPoints(array(4, 1, 2, -1, -4, -2, 3, 2, 1, 2, 2), "Serie3");
$DataSet->AddAllSeries();
$DataSet->SetAbscissaLabelSeries();
$DataSet->SetSeriesName("January", "Serie1");
$DataSet->SetSeriesName("February", "Serie2");
$DataSet->SetSeriesName("March", "Serie3");
// Initialise the graph
$Chart->setFontProperties("../Fonts/tahoma.ttf", 8);
$Chart->setGraphArea(50, 30, 680, 200);
$Canvas->drawFilledRoundedRectangle(new Point(7, 7), new Point(693, 223), 5, new Color(240), 1, 0, ShadowProperties::NoShadow());
$Chart->drawGraphBackground(new BackgroundStyle(new Color(255), TRUE));
$Chart->drawScale($DataSet, ScaleStyle::DefaultStyle(), 0, 2, TRUE);
$Chart->drawGrid(new GridStyle(4, TRUE, new Color(230), 80));
// Draw the 0 line
$Chart->setFontProperties("../Fonts/tahoma.ttf", 6);
$Chart->drawTreshold(0, new Color(143, 55, 72), TRUE, TRUE);
// Draw the bar graph
$Chart->drawBarGraph($DataSet->GetData(), $DataSet->GetDataDescription(), 80);
// Finish the graph
$Chart->setFontProperties("../Fonts/tahoma.ttf", 8);
$Chart->drawLegend(596, 150, $DataSet->GetDataDescription(), new Color(255));
$Chart->setFontProperties("../Fonts/tahoma.ttf", 10);
$Chart->drawTitle(50, 22, "Example 12", new Color(50), 585);
$Chart->Render("Example12.png");
header("Content-Type:image/png");
/**
* Print all error messages on the CLI or graphically
*/
function printErrors($Mode = "CLI")
{
if (count($this->Errors) == 0) {
return 0;
}
if ($Mode == "CLI") {
foreach ($this->Errors as $key => $Value) {
echo $Value . "\r\n";
}
} elseif ($Mode == "GD") {
$MaxWidth = 0;
foreach ($this->Errors as $key => $Value) {
$Position = imageftbbox($this->ErrorFontSize, 0, $this->ErrorFontName, $Value);
$TextWidth = $Position[2] - $Position[0];
if ($TextWidth > $MaxWidth) {
$MaxWidth = $TextWidth;
}
}
$this->canvas->drawFilledRoundedRectangle(new Point($this->XSize - ($MaxWidth + 20), $this->YSize - (20 + ($this->ErrorFontSize + 4) * count($this->Errors))), new Point($this->XSize - 10, $this->YSize - 10), 6, new Color(233, 185, 185), $this->lineWidth, $this->lineDotSize, $this->shadowProperties);
$this->canvas->drawRoundedRectangle(new Point($this->XSize - ($MaxWidth + 20), $this->YSize - (20 + ($this->ErrorFontSize + 4) * count($this->Errors))), new Point($this->XSize - 10, $this->YSize - 10), 6, new Color(193, 145, 145), $this->LineWidth, $this->LineDotSize, $this->shadowProperties);
$YPos = $this->YSize - (18 + (count($this->Errors) - 1) * ($this->ErrorFontSize + 4));
foreach ($this->Errors as $key => $Value) {
$this->canvas->drawText($this->ErrorFontSize, 0, new Point($this->XSize - ($MaxWidth + 15), $YPos), new Color(133, 85, 85), $this->ErrorFontName, $Value, ShadowProperties::NoShadow());
$YPos = $YPos + ($this->ErrorFontSize + 4);
}
}
}
