Jak nastavit vlastnosti osy grafu

Pokud chcete pracovat s osou grafu, měřítkem a zobrazovacími jednotkami pro hodnotovou osu, použijte třídy ChartAxis, AxisDisplayUnit a AxisScaling.

Následující příklad kódu ukazuje, jak definovat vlastnosti osy X a Y:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Area, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	System::ArrayPtr<System::DateTime> dates = System::MakeArray<System::DateTime>({System::DateTime(2002, 1, 1),
	System::DateTime(2002, 6, 1),
	System::DateTime(2002, 7, 1),
	System::DateTime(2002, 8, 1),
	System::DateTime(2002, 9, 1)});
	chart->get_Series()->Add(u"AW Series 1", dates, System::MakeArray<double>({640, 320, 280, 120, 150}));

	System::SharedPtr<ChartAxis> xAxis = chart->get_AxisX();
	System::SharedPtr<ChartAxis> yAxis = chart->get_AxisY();

	// Change the X axis to be category instead of date, so all the points will be put with equal interval on the X axis.
	xAxis->set_CategoryType(AxisCategoryType::Category);

	// Define X axis properties.
	xAxis->set_Crosses(AxisCrosses::Custom);
	xAxis->set_CrossesAt(3);
	// measured in display units of the Y axis (hundreds)
	xAxis->set_ReverseOrder(true);
	xAxis->set_MajorTickMark(AxisTickMark::Cross);
	xAxis->set_MinorTickMark(AxisTickMark::Outside);
	xAxis->set_TickLabelOffset(200);

	// Define Y axis properties.
	yAxis->set_TickLabelPosition(AxisTickLabelPosition::High);
	yAxis->set_MajorUnit(100);
	yAxis->set_MinorUnit(50);
	yAxis->get_DisplayUnit()->set_Unit(AxisBuiltInUnit::Hundreds);
	yAxis->get_Scaling()->set_Minimum(System::MakeObject<AxisBound>(100));
	yAxis->get_Scaling()->set_Maximum(System::MakeObject<AxisBound>(700));

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.DefineXYAxisProperties.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-DefineXYAxisProperties.cpp hosted with ❤ by GitHub

Jak nastavit hodnotu data a času osy

Následující příklad kódu ukazuje, jak nastavit hodnoty data/času na vlastnosti osy:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Column, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	System::ArrayPtr<System::DateTime> dates = System::MakeArray<System::DateTime>({System::DateTime(2017, 11, 6),
	System::DateTime(2017, 11, 9),
	System::DateTime(2017, 11, 15),
	System::DateTime(2017, 11, 21),
	System::DateTime(2017, 11, 25),
	System::DateTime(2017, 11, 29)});
	chart->get_Series()->Add(u"AW Series 1", dates, System::MakeArray<double>({1.2, 0.3, 2.1, 2.9, 4.2, 5.3}));

	// Set X axis bounds.
	System::SharedPtr<ChartAxis> xAxis = chart->get_AxisX();
	xAxis->get_Scaling()->set_Minimum(System::MakeObject<AxisBound>((System::DateTime(2017, 11, 5)).ToOADate()));
	xAxis->get_Scaling()->set_Maximum(System::MakeObject<AxisBound>((System::DateTime(2017, 12, 3)).ToOADate()));

	// Set major units to a week and minor units to a day.
	xAxis->set_MajorUnit(7);
	xAxis->set_MinorUnit(1);
	xAxis->set_MajorTickMark(AxisTickMark::Cross);
	xAxis->set_MinorTickMark(AxisTickMark::Outside);

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.SetDateTimeValuesToAxis.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-SetDateTimeValuesToAxis.cpp hosted with ❤ by GitHub

Jak formátovat číselnou hodnotu osy

Následující příklad kódu ukazuje, jak změnit formát čísel na ose hodnot:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Column, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	chart->get_Series()->Add(u"AW Series 1",
	System::MakeArray<System::String>({u"Item 1", u"Item 2", u"Item 3", u"Item 4", u"Item 5"}),
	System::MakeArray<double>({1900000, 850000, 2100000, 600000, 1500000}));

	// Set number format.
	chart->get_AxisY()->get_NumberFormat()->set_FormatCode(u"#,##0");

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.SetNumberFormatForAxis.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-SetNumberFormatForAxis.cpp hosted with ❤ by GitHub

Jak nastavit hranice osy

Třída AxisBound představuje minimální nebo maximální hranici hodnot osy. Vázaný může být zadán jako číselná, datum-čas nebo speciální “auto” hodnota.

Následující příklad kódu ukazuje, jak nastavit hranice osy:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Column, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	chart->get_Series()->Add(u"AW Series 1",
	System::MakeArray<System::String>({u"Item 1", u"Item 2", u"Item 3", u"Item 4", u"Item 5"}),
	System::MakeArray<double>({1.2, 0.3, 2.1, 2.9, 4.2}));

	chart->get_AxisY()->get_Scaling()->set_Minimum(System::MakeObject<AxisBound>(0));
	chart->get_AxisY()->get_Scaling()->set_Maximum(System::MakeObject<AxisBound>(6));

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.SetBoundsOfAxis.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-SetboundsOfAxis.cpp hosted with ❤ by GitHub

Jak nastavit intervalovou jednotku mezi štítky

Následující příklad kódu ukazuje, jak nastavit intervalovou jednotku mezi štítky na ose:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Column, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	chart->get_Series()->Add(u"AW Series 1",
	System::MakeArray<System::String>({u"Item 1", u"Item 2", u"Item 3", u"Item 4", u"Item 5"}),
	System::MakeArray<double>({1.2, 0.3, 2.1, 2.9, 4.2}));

	chart->get_AxisX()->set_TickLabelSpacing(2);

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.SetIntervalUnitBetweenLabelsOnAxis.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-SetIntervalUnitBetweenLabelsOnAxis.cpp hosted with ❤ by GitHub

Jak skrýt osu grafu

Pokud chcete zobrazit nebo skrýt osu grafu, můžete toho jednoduše dosáhnout nastavením hodnoty vlastnosti set_Hidden.

Následující příklad kódu ukazuje, jak skrýt osu Y grafu:

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>();
	System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

	// Insert chart.
	System::SharedPtr<Shape> shape = builder->InsertChart(ChartType::Column, 432, 252);
	System::SharedPtr<Chart> chart = shape->get_Chart();

	// Clear demo data.
	chart->get_Series()->Clear();

	// Fill data.
	chart->get_Series()->Add(u"AW Series 1",
	System::MakeArray<System::String>({u"Item 1", u"Item 2", u"Item 3", u"Item 4", u"Item 5"}),
	System::MakeArray<double>({1.2, 0.3, 2.1, 2.9, 4.2}));

	// Hide the Y axis.
	chart->get_AxisY()->set_Hidden(true);

	System::String outputPath = outputDataDir + u"WorkingWithChartAxis.HideChartAxis.docx";
	doc->Save(outputPath);

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-HideChartAxis.cpp hosted with ❤ by GitHub

Jak zarovnat štítek grafu

Pokud chcete nastavit zarovnání textu pro víceřádkové štítky, můžete toho jednoduše dosáhnout nastavením hodnoty vlastnosti TickLabelAlignment. Následující příklad kódu ukazuje, jak zaškrtnout zarovnání štítků.

	For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
	System::SharedPtr<Document> doc = System::MakeObject<Document>(inputDataDir + u"Document.docx");
	System::SharedPtr<Shape> shape = System::DynamicCast<Shape>(doc->GetChild(NodeType::Shape, 0, true));
	System::SharedPtr<ChartAxis> axis = shape->get_Chart()->get_AxisX();

	//This property has effect only for multi-line labels.
	axis->set_TickLabelAlignment(ParagraphAlignment::Right);

	doc->Save(outputDataDir + u"WorkingWithChartAxis.TickMultiLineLabelAlignment.docx");

view raw cpp-Programming-Documents-Charts-WorkingWithChartAxis-TickMultiLineLabelAlignment.cpp hosted with ❤ by GitHub

Vytváření OOXML grafů od nuly Práce se štítkem dat grafu v C++