// Copyright (C) 2023 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause //! [labelformat] proxy->setItemLabelFormat(QStringLiteral("@valueTitle for (@rowLabel, @colLabel): %.1f")); //! [labelformat] //! [labelformat-scatter] proxy->setItemLabelFormat(QStringLiteral("@yTitle for (@xLabel, @zLabel): %.1f")); //! [labelformat-scatter] //! [barmodelproxy] // By defining row and column categories, you tell the mapping which row and column each item // belongs to. The categories must match the data stored in the model in the roles you define // for row and column mapping. In this example we expect "year" role to return four digit year // and "month" to return three letter designation for the month. // // An example of an item in model would be: // Requested role -> Returned data // "year" -> "2016" // Matches the first row category, so this item is added to the first row. // "month" -> "jan" // Matches the first column category, so this item is added as first item in the row. // "income" -> "12.1" // "expenses" -> "9.2" QStringList years; QStringList months; years << "2016" << "2017" << "2018" << "2019" << "2020" << "2021" << "2022"; months << "jan" << "feb" << "mar" << "apr" << "may" << "jun" << "jul" << "aug" << "sep" << "oct" << "nov" << "dec"; QItemModelBarDataProxy *proxy = new QItemModelBarDataProxy(customModel, QStringLiteral("year"), // Row role QStringLiteral("month"), // Column role QStringLiteral("income"), // Value role years, // Row categories months); // Column categories //... // To display different data later, you can simply change the mapping. proxy->setValueRole(QStringLiteral("expenses")); //! [barmodelproxy] //! [scattermodelproxy] // Map "density" value to X-axis, "hardness" to Y-axis and "conductivity" to Z-axis. QItemModelScatterDataProxy *proxy = new QItemModelScatterDataProxy(customModel, QStringLiteral("density"), QStringLiteral("hardness"), QStringLiteral("conductivity")); //! [scattermodelproxy] //! [surfacemodelproxy] QItemModelSurfaceDataProxy *proxy = new QItemModelSurfaceDataProxy(customModel, QStringLiteral("longitude"), // Row role QStringLiteral("latitude"), // Column role QStringLiteral("height")); // Y-position role //! [surfacemodelproxy] //! [proxyexample] QQuickWidget quickWidget; Q3DBarsWidgetItem graph; graph.setWidget(&quickWidget); QBar3DSeries series; for (int i = 0; i < 10; ++i) { QBarDataRow dataRow; for (int j = 0; j < 5; ++j) dataRow.append(myData->getValue(i, j)); series.dataProxy()->addRow(dataRow); } graph.addSeries(&series); //! [proxyexample] //! [seriesexample] QQuickWidget quickWidget; Q3DBarsWidgetItem graph; graph.setWidget(&quickWidget); QBar3DSeries series; QLinearGradient barGradient(0, 0, 1, 100); barGradient.setColorAt(1.0, Qt::white); barGradient.setColorAt(0.0, Qt::black); series.setBaseGradient(barGradient); series.setColorStyle(QGraphsTheme::ColorStyle::ObjectGradient); series.setMesh(QAbstract3DSeries::Mesh::Cylinder); graph.addSeries(&series); //! [seriesexample] //! [widget in a layout example] QQuickWidget *quickWidget = new QQuickWidget(); Q3DBarsWidgetItem *barGraph = new Q3DBarsWidgetItem(); barGraph->setWidget(quickWidget); auto *hLayout = new QHBoxLayout(quickWidget); //! [widget in a layout example]