RE: #3294 - provide a sample that sets the X-axis as type "value" (#3295)

samples/Chart/33_Chart_create_scatter6_value_xaxis.php

@@ -0,0 +1,137 @@
+<?php
+
+use PhpOffice\PhpSpreadsheet\Chart\Axis as ChartAxis;
+use PhpOffice\PhpSpreadsheet\Chart\Chart;
+use PhpOffice\PhpSpreadsheet\Chart\ChartColor;
+use PhpOffice\PhpSpreadsheet\Chart\DataSeries;
+use PhpOffice\PhpSpreadsheet\Chart\DataSeriesValues;
+use PhpOffice\PhpSpreadsheet\Chart\Legend as ChartLegend;
+use PhpOffice\PhpSpreadsheet\Chart\PlotArea;
+use PhpOffice\PhpSpreadsheet\Chart\Properties;
+use PhpOffice\PhpSpreadsheet\Chart\Title;
+use PhpOffice\PhpSpreadsheet\IOFactory;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+require __DIR__ . '/../Header.php';
+
+$spreadsheet = new Spreadsheet();
+$dataSheet = $spreadsheet->getActiveSheet();
+$dataSheet->setTitle('Data');
+
+$results = [
+    ['Station 1', 'Score'],
+    [13.25, 3],
+    [16.25, 4],
+    [18.5, 4],
+    [15.5, 3],
+    [15.75, 5],
+    [17.25, 4],
+    [10.5, 2],
+];
+
+$dataSheet->fromArray($results);
+
+$spreadsheet->createSheet();
+
+$chartSheet = $spreadsheet->getSheet(1);
+$chartSheet->setTitle('Appendix');
+
+$dataSeriesLabels = [
+    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_STRING, 'Data!$A$1', null, 1),
+];
+
+$dataSeriesValues = [
+    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_NUMBER, 'Data!$A$2:$A$' . count($results), Properties::FORMAT_CODE_NUMBER, 4, null, 'diamond', null, 7),
+];
+
+$xAxisTickValues = [
+    new DataSeriesValues(DataSeriesValues::DATASERIES_TYPE_NUMBER, 'Data!$B$2:$B$' . count($results), Properties::FORMAT_CODE_NUMBER, 8),
+];
+
+$dataSeriesValues[0]->setScatterLines(false); // Points not connected
+
+$dataSeriesValues[0]->getMarkerFillColor()
+    ->setColorProperties('accent1', null, ChartColor::EXCEL_COLOR_TYPE_SCHEME);
+
+// Build the dataseries
+$series = new DataSeries(
+    DataSeries::TYPE_SCATTERCHART, // plotType
+    null, // plotGrouping (Scatter charts don't have grouping)
+    range(0, count($dataSeriesValues) - 1), // plotOrder
+    $dataSeriesLabels, // plotLabel
+    $xAxisTickValues, // plotCategory
+    $dataSeriesValues, // plotValues
+    null, // plotDirection
+    null, // smooth line
+    DataSeries::STYLE_LINEMARKER // plotStyle
+);
+
+// Set the series in the plot area
+$plotArea = new PlotArea(null, [$series]);
+// Set the chart legend
+$legend = new ChartLegend(ChartLegend::POSITION_TOPRIGHT, null, false);
+
+$title = new Title($results[0][0]);
+
+$xAxis = new ChartAxis();
+
+$xAxis->setAxisOptionsProperties(
+    Properties::AXIS_LABELS_NEXT_TO,
+    null, // horizontalCrossesValue
+    null, // horizontalCrosses
+    null, // axisOrientation
+    null, // majorTmt
+    Properties::TICK_MARK_OUTSIDE, // minorTmt
+    0, // minimum
+    6, // maximum
+    null, // majorUnit
+    1, // minorUnit
+);
+
+$xAxis->setAxisType(ChartAxis::AXIS_TYPE_VALUE);
+
+$yAxis = new ChartAxis();
+
+$yAxis->setAxisOptionsProperties(
+    Properties::AXIS_LABELS_NEXT_TO,
+    null, // horizontalCrossesValue
+    null, // horizontalCrosses
+    null, // axisOrientation
+    null, // majorTmt
+    Properties::TICK_MARK_OUTSIDE, // minorTmt
+    0, // minimum
+    25, // 30 // maximum
+    null, // majorUnit
+    5, // minorUnit
+);
+
+// Create the chart
+$chart = new Chart(
+    'chart2', // name
+    $title, // title
+    $legend, // legend
+    $plotArea, // plotArea
+    true, // plotVisibleOnly
+    DataSeries::EMPTY_AS_GAP, // displayBlanksAs
+    null, // xAxisLabel
+    null, // yAxisLabel
+    // added xAxis for correct date display
+    $xAxis, // xAxis
+    $yAxis, // yAxis
+);
+
+// Set the position of the chart in the chart sheet below the first chart
+$chart->setTopLeftPosition('B2');
+$chart->setBottomRightPosition('K22');
+
+// Add the chart to the worksheet $chartSheet
+$chartSheet->addChart($chart);
+$spreadsheet->setActiveSheetIndex(1);
+
+// Save Excel 2007 file
+$filename = $helper->getFilename(__FILE__);
+$writer = IOFactory::createWriter($spreadsheet, 'Xlsx');
+$writer->setIncludeCharts(true);
+$callStartTime = microtime(true);
+$writer->save($filename);
+$helper->logWrite($writer, $filename, $callStartTime);