Q3DBars with grid on vertical walls, how? - c++

Question

This is the plot
And this is the code
.pro
QT += core gui widgets datavisualization
TEMPLATE = app
SOURCES += main.cpp mainwindow.cpp
HEADERS += mainwindow.h
main.cpp
#include "mainwindow.cpp"
#include <QApplication>
int main(int argc, char *argv[]) {
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
class MainWindow : public QMainWindow {
Q_OBJECT
public:
MainWindow(QWidget *parent = 0);
~MainWindow();
};
#endif // MAINWINDOW_H
mainwindow.cpp
#include "mainwindow.h"
#include <QMainWindow>
#include <QtDataVisualization/Q3DBars>
using namespace QtDataVisualization;
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
resize(800,600);
Q3DBars *graph = new Q3DBars;
setCentralWidget(QWidget::createWindowContainer(graph));
graph->scene()->activeCamera()->setCameraPosition(30,30);
graph->setBarSpacing(QSizeF(1,3));
QBar3DSeries *series = new QBar3DSeries;
graph->addSeries(series);
QStringList row_labels{"0", "", "20", "", "40"};
QStringList column_labels{"0", "", "20", "", "40"};
graph->rowAxis()->setRange(0, row_labels.count()-1);
graph->columnAxis()->setRange(0, column_labels.count()-1);
series->dataProxy()->setRowLabels(row_labels);
series->dataProxy()->setColumnLabels(column_labels);
// graph->activeTheme()->setGridEnabled(false);
}
MainWindow::~MainWindow(){}
Now to the question:
Can I have grid lines on vertical walls? I mean vertical lines in the picture, same way as in the floor.

Answer 1

Perhaps not possible with Q3DBars though with Q3DScatter maybe:
#include "mainwindow.h"
#include <Q3DScatter>
using namespace QtDataVisualization;
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
auto chart = new Q3DScatter;
setCentralWidget(QWidget::createWindowContainer(chart));
auto series = new QScatter3DSeries;
chart->addSeries(series);
chart->axisX()->setRange(0,50);
chart->axisY()->setRange(0,50);
chart->axisZ()->setRange(0,50);
chart->setShadowQuality(QAbstract3DGraph::ShadowQualityNone);
auto add_bar = [](int x, int y, int z){
auto bar = new QScatterDataArray;;
while(z-- > 0)
*bar << QVector3D(y, z, x);
return bar;
};
QList<QScatterDataArray*> row;
for(int i = 0; i < 5; i++)
row << add_bar(0, i*10, 20);
foreach (auto bar, row)
series->dataProxy()->addItems(*bar);
}
MainWindow::~MainWindow() {}