pascal/lazarus-ccr
1
0
Fork 0
Code Issues Releases Activity

fpspreadsheet: Add example project for writing ods with regression chart.

Browse Source 
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@9007 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
2023-11-03 18:58:20 +00:00
parent 0fe9411ff3
commit c4d733bd08
2 changed files with 146 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

73
components/fpspreadsheet/examples/other/chart/regressionchart_write_demo.lpi Normal file
View File

@@ -0,0 +1,73 @@
<?xml version="1.0" encoding="UTF-8"?>
<CONFIG>
<ProjectOptions>
<Version Value="12"/>
<PathDelim Value="\"/>
<General>
<Flags>
<MainUnitHasCreateFormStatements Value="False"/>
<MainUnitHasTitleStatement Value="False"/>
<MainUnitHasScaledStatement Value="False"/>
</Flags>
<SessionStorage Value="InProjectDir"/>
<Title Value="regressionchart_write_demo"/>
<UseAppBundle Value="False"/>
<ResourceType Value="res"/>
</General>
<BuildModes>
<Item Name="Default" Default="True"/>
</BuildModes>
<PublishOptions>
<Version Value="2"/>
<UseFileFilters Value="True"/>
</PublishOptions>
<RunParams>
<FormatVersion Value="2"/>
</RunParams>
<RequiredPackages>
<Item>
<PackageName Value="laz_fpspreadsheet"/>
</Item>
</RequiredPackages>
<Units>
<Unit>
<Filename Value="regressionchart_write_demo.lpr"/>
<IsPartOfProject Value="True"/>
</Unit>
</Units>
</ProjectOptions>
<CompilerOptions>
<Version Value="11"/>
<PathDelim Value="\"/>
<Target>
<Filename Value="regressionchart_write_demo"/>
</Target>
<SearchPaths>
<IncludeFiles Value="$(ProjOutDir)"/>
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
</SearchPaths>
<Linking>
<Debugging>
<DebugInfoType Value="dsDwarf3"/>
</Debugging>
</Linking>
<Other>
<ConfigFile>
<WriteConfigFilePath Value=""/>
</ConfigFile>
</Other>
</CompilerOptions>
<Debugging>
<Exceptions>
<Item>
<Name Value="EAbort"/>
</Item>
<Item>
<Name Value="ECodetoolError"/>
</Item>
<Item>
<Name Value="EFOpenError"/>
</Item>
</Exceptions>
</Debugging>
</CONFIG>

73
components/fpspreadsheet/examples/other/chart/regressionchart_write_demo.lpr Normal file
View File

@@ -0,0 +1,73 @@
program regressionchart_write_demo;
{.$DEFINE DARK_MODE}
uses
SysUtils,
fpspreadsheet, fpstypes, fpsUtils, fpschart, xlsxooxml, fpsopendocument;
var
b: TsWorkbook;
sheet: TsWorksheet;
ch: TsChart;
ser: TsScatterSeries;
begin
b := TsWorkbook.Create;
try
// worksheet
sheet := b.AddWorksheet('regression_test');
// Enter data
sheet.WriteText(0, 0, 'Data');
sheet.WriteFont(0, 0, '', 12, [fssBold], scBlack);
sheet.WriteText (2, 0, 'x'); sheet.Writetext (2, 1, 'y');
sheet.WriteNumber(3, 0, 1.1); sheet.WriteNumber(3, 1, 0.9);
sheet.WriteNumber(4, 0, 1.9); sheet.WriteNumber(4, 1, 2.05);
sheet.WriteNumber(5, 0, 2.5); sheet.WriteNumber(5, 1, 2.45);
sheet.WriteNumber(6, 0, 3.1); sheet.WriteNumber(6, 1, 3.3);
sheet.WriteNumber(7, 0, 5.2); sheet.WriteNumber(7, 1, 4.9);
sheet.WriteNumber(8, 0, 6.8); sheet.WriteNumber(8, 1, 7.1); // sheet.WriteChartColor(8, 2, $FF8080);
// Create chart: left/top in cell D4, 120 mm x 100 mm
ch := b.AddChart(sheet, 2, 3, 120, 100);
// Chart properties
ch.Border.Style := clsNoLine;
ch.Legend.Border.Style := clsNoLine;
// Add scatter series
ser := TsScatterSeries.Create(ch);
// Series properties
ser.SetTitleAddr(0, 0);
ser.SetXRange(3, 0, 8, 0);
ser.SetYRange(3, 1, 8, 1);
ser.ShowLines := false;
ser.ShowSymbols := true;
ser.Symbol := cssCircle;
ser.Regression.Title := 'Fit curve';
ser.Regression.RegressionType := rtPolynomial; //rtLinear;
ser.Regression.ExtrapolateForwardBy := 10;
ser.Regression.ExtrapolateBackwardBy := 10;
ser.Regression.Line.Color := scRed;
ser.Regression.Line.Style := clsDash;
ser.Regression.ForceYIntercept := true; // not used by logarithmic, power
ser.Regression.YInterceptValue := 1.0;
ser.Regression.PolynomialDegree := 2;
ser.Regression.DisplayEquation := true;
ser.Regression.DisplayRSquare := true;
ser.Regression.Equation.XName := 'X';
ser.Regression.Equation.YName := 'Y';
ser.Regression.Equation.Border.Style := clsSolid;
ser.Regression.Equation.Border.Color := scRed;
ser.Regression.Equation.Fill.Style := fsSolidFill;
ser.Regression.Equation.Fill.FgColor := scSilver;
//ser.Regression.Equation.Top := 5;
//ser.Regression.Equation.Left := 5;
b.WriteToFile('regression.xlsx', true); // Excel fails to open the file
b.WriteToFile('regression.ods', true);
finally
b.Free;
end;
end.