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// 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]
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