📄 financedemochart.php
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}
# In some finance chart presentation style, even if the data for the latest day
# is not fully available, the axis for the entire day will still be drawn, where
# no data will appear near the end of the axis.
if ($resolution < 86400) {
# Add extra points to the axis until it reaches the end of the day. The end
# of day is assumed to be 16:00 (it depends on the stock exchange).
$lastTime = $timeStamps[count($timeStamps) - 1];
$extraTrailingPoints = (int)((16 * 3600 - fmod2($lastTime, 86400)) /
$resolution);
for($i = 0; $i < $extraTrailingPoints; ++$i) {
$timeStamps[] = $lastTime + $resolution * ($i + 1);
}
}
#
# At this stage, all data is available. We can draw the chart as according to
# user input.
#
#
# Determine the chart size. In this demo, user can select 4 different chart
# sizes. Default is the large chart size.
#
$width = 780;
$mainHeight = 250;
$indicatorHeight = 80;
$chartSize = $_REQUEST["ChartSize"];
if ($chartSize == "S") {
# Small chart size
$width = 450;
$mainHeight = 160;
$indicatorHeight = 60;
} else if ($chartSize == "M") {
# Medium chart size
$width = 620;
$mainHeight = 210;
$indicatorHeight = 65;
} else if ($chartSize == "H") {
# Huge chart size
$width = 1000;
$mainHeight = 320;
$indicatorHeight = 90;
}
# Create the chart object using the selected size
$m = new FinanceChart($width);
# Set the data into the chart object
$m->setData($timeStamps, $highData, $lowData, $openData, $closeData, $volData,
$extraPoints);
#
# We configure the title of the chart. In this demo chart design, we put the
# company name as the top line of the title with left alignment.
#
$m->addPlotAreaTitle(TopLeft, "Random Data $tickerKey");
# We displays the current date as well as the data resolution on the next line.
$resolutionText = "";
if ($resolution == 30 * 86400) {
$resolutionText = "Monthly";
} else if ($resolution == 7 * 86400) {
$resolutionText = "Weekly";
} else if ($resolution == 86400) {
$resolutionText = "Daily";
} else if ($resolution == 900) {
$resolutionText = "15-min";
}
$m->addPlotAreaTitle(BottomLeft, sprintf(
"<*font=arial.ttf,size=8*>%s - %s chart", $m->formatValue(chartTime2(time()),
"mmm dd, yyyy"), $resolutionText));
# A copyright message at the bottom left corner the title area
$m->addPlotAreaTitle(BottomRight,
"<*font=arial.ttf,size=8*>(c) Advanced Software Engineering");
#
# Set the grid style according to user preference. In this simple demo user
# interface, user can enable/disable grid lines. The code achieve this by setting
# the grid color to dddddd (light grey) or Transparent. The plot area background
# color is set to fffff0 (pale yellow).
#
$vGridColor = Transparent;
if ($_REQUEST["VGrid"] == "1") {
$vGridColor = 0xdddddd;
}
$hGridColor = Transparent;
if ($_REQUEST["HGrid"] == "1") {
$hGridColor = 0xdddddd;
}
$m->setPlotAreaStyle(0xfffff0, $hGridColor, $vGridColor, $hGridColor, $vGridColor
);
#
# Set log or linear scale according to user preference
#
if ($_REQUEST["LogScale"] == "1") {
$m->setLogScale(true);
} else {
$m->setLogScale(false);
}
#
# Add the first techical indicator according. In this demo, we draw the first
# indicator on top of the main chart.
#
addIndicator($m, $_REQUEST["Indicator1"], $indicatorHeight);
#
# Add the main chart
#
$m->addMainChart($mainHeight);
#
# Draw the main chart depending on the chart type the user has selected
#
$chartType = $_REQUEST["ChartType"];
if ($chartType == "Close") {
$m->addCloseLine(0x000040);
} else if ($chartType == "TP") {
$m->addTypicalPrice(0x000040);
} else if ($chartType == "WC") {
$m->addWeightedClose(0x000040);
} else if ($chartType == "Median") {
$m->addMedianPrice(0x000040);
}
#
# Add moving average lines.
#
addMovingAvg($m, $_REQUEST["avgType1"], $avgPeriod1, 0x663300);
addMovingAvg($m, $_REQUEST["avgType2"], $avgPeriod2, 0x9900ff);
#
# Draw the main chart if the user has selected CandleStick or OHLC. We draw it
# here to make sure it is drawn behind the moving average lines (that is, the
# moving average lines stay on top.)
#
if ($chartType == "CandleStick") {
$m->addCandleStick(0x33ff33, 0xff3333);
} else if ($chartType == "OHLC") {
$m->addHLOC(0x008800, 0xcc0000);
}
#
# Add price band/channel/envelop to the chart according to user selection
#
$band = $_REQUEST["Band"];
if ($band == "BB") {
$m->addBollingerBand(20, 2, 0x9999ff, 0xc06666ff);
} else if ($band == "DC") {
$m->addDonchianChannel(20, 0x9999ff, 0xc06666ff);
} else if ($band == "Envelop") {
$m->addEnvelop(20, 0.1, 0x9999ff, 0xc06666ff);
}
#
# Add volume bars to the main chart if necessary
#
if ($_REQUEST["Volume"] == "1") {
$m->addVolBars($indicatorHeight, 0x99ff99, 0xff9999, 0xc0c0c0);
}
#
# Add additional indicators as according to user selection.
#
addIndicator($m, $_REQUEST["Indicator2"], $indicatorHeight);
addIndicator($m, $_REQUEST["Indicator3"], $indicatorHeight);
addIndicator($m, $_REQUEST["Indicator4"], $indicatorHeight);
return $m;
}
#/ <summary>
#/ Add a moving average line to the FinanceChart object.
#/ </summary>
#/ <param name="m">The FinanceChart object to add the line to.</param>
#/ <param name="avgType">The moving average type (SMA/EMA/TMA/WMA).</param>
#/ <param name="avgPeriod">The moving average period.</param>
#/ <param name="color">The color of the line.</param>
function addMovingAvg(&$m, $avgType, $avgPeriod, $color) {
if ($avgPeriod > 1) {
if ($avgType == "SMA") {
$m->addSimpleMovingAvg($avgPeriod, $color);
} else if ($avgType == "EMA") {
$m->addExpMovingAvg($avgPeriod, $color);
} else if ($avgType == "TMA") {
$m->addTriMovingAvg($avgPeriod, $color);
} else if ($avgType == "WMA") {
$m->addWeightedMovingAvg($avgPeriod, $color);
}
}
}
#/ <summary>
#/ Add an indicator chart to the FinanceChart object. In this demo example, the
#/ indicator parameters (such as the period used to compute RSI, colors of the lines,
#/ etc.) are hard coded to commonly used values. You are welcome to design a more
#/ complex user interface to allow users to set the parameters.
#/ </summary>
#/ <param name="m">The FinanceChart object to add the line to.</param>
#/ <param name="indicator">The selected indicator.</param>
#/ <param name="height">Height of the chart in pixels</param>
function addIndicator(&$m, $indicator, $height) {
if ($indicator == "RSI") {
$m->addRSI($height, 14, 0x800080, 20, 0xff6666, 0x6666ff);
} else if ($indicator == "StochRSI") {
$m->addStochRSI($height, 14, 0x800080, 30, 0xff6666, 0x6666ff);
} else if ($indicator == "MACD") {
$m->addMACD($height, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
} else if ($indicator == "FStoch") {
$m->addFastStochastic($height, 14, 3, 0x006060, 0x606000);
} else if ($indicator == "SStoch") {
$m->addSlowStochastic($height, 14, 3, 0x006060, 0x606000);
} else if ($indicator == "ATR") {
$m->addATR($height, 14, 0x808080, 0x0000ff);
} else if ($indicator == "ADX") {
$m->addADX($height, 14, 0x008000, 0x800000, 0x000080);
} else if ($indicator == "DCW") {
$m->addDonchianWidth($height, 20, 0x0000ff);
} else if ($indicator == "BBW") {
$m->addBollingerWidth($height, 20, 2, 0x0000ff);
} else if ($indicator == "DPO") {
$m->addDPO($height, 20, 0x0000ff);
} else if ($indicator == "PVT") {
$m->addPVT($height, 0x0000ff);
} else if ($indicator == "Momentum") {
$m->addMomentum($height, 12, 0x0000ff);
} else if ($indicator == "Performance") {
$m->addPerformance($height, 0x0000ff);
} else if ($indicator == "ROC") {
$m->addROC($height, 12, 0x0000ff);
} else if ($indicator == "OBV") {
$m->addOBV($height, 0x0000ff);
} else if ($indicator == "AccDist") {
$m->addAccDist($height, 0x0000ff);
} else if ($indicator == "CLV") {
$m->addCLV($height, 0x0000ff);
} else if ($indicator == "WilliamR") {
$m->addWilliamR($height, 14, 0x800080, 30, 0xff6666, 0x6666ff);
} else if ($indicator == "Aroon") {
$m->addAroon($height, 14, 0x339933, 0x333399);
} else if ($indicator == "AroonOsc") {
$m->addAroonOsc($height, 14, 0x0000ff);
} else if ($indicator == "CCI") {
$m->addCCI($height, 20, 0x800080, 100, 0xff6666, 0x6666ff);
} else if ($indicator == "EMV") {
$m->addEaseOfMovement($height, 9, 0x006060, 0x606000);
} else if ($indicator == "MDX") {
$m->addMassIndex($height, 0x800080, 0xff6666, 0x6666ff);
} else if ($indicator == "CVolatility") {
$m->addChaikinVolatility($height, 10, 10, 0x0000ff);
} else if ($indicator == "COscillator") {
$m->addChaikinOscillator($height, 0x0000ff);
} else if ($indicator == "CMF") {
$m->addChaikinMoneyFlow($height, 21, 0x008000);
} else if ($indicator == "NVI") {
$m->addNVI($height, 255, 0x0000ff, 0x883333);
} else if ($indicator == "PVI") {
$m->addPVI($height, 255, 0x0000ff, 0x883333);
} else if ($indicator == "MFI") {
$m->addMFI($height, 14, 0x800080, 30, 0xff6666, 0x6666ff);
} else if ($indicator == "PVO") {
$m->addPVO($height, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
} else if ($indicator == "PPO") {
$m->addPPO($height, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
} else if ($indicator == "UO") {
$m->addUltimateOscillator($height, 7, 14, 28, 0x800080, 20, 0xff6666,
0x6666ff);
} else if ($indicator == "Vol") {
$m->addVolIndicator($height, 0x99ff99, 0xff9999, 0xc0c0c0);
} else if ($indicator == "TRIX") {
$m->addTRIX($height, 12, 0x0000ff);
}
}
# create the finance chart
$c = drawChart();
# output the chart
header("Content-type: image/png");
print($c->makeChart2(PNG));
?>
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