Updating a Q3DScatter by PushButton

[Timo_F]

Hello everybody,

I'm new in Qt and I want to use a Q3DScatter for visualizing points.
I embedded the Q3DScatter in a QWidget and the QWidget in a gridLayout.
The code is shown below. It's just the Scatter without data.

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

Q3DScatter *graph = new Q3DScatter();

QWidget *container = QWidget::createWindowContainer(graph);

Q3DScatter *graph2 = new Q3DScatter();

QWidget *container2 = QWidget::createWindowContainer(graph2);

ui->gridLayout->addWidget(container);
ui->gridLayout_2->addWidget(container2);
}

In the next step I want to use a PushButton for updating the points. The method looks like this:

void MainWindow::on_pushButton_4_clicked()
{
scattermodifier *modifier = new scattermodifier(graph);

scattermodifier *modifier_2 = new scattermodifier(graph2);

}

Basicly, the scattermodifier works but how can I use graph and graph2 from the MainWindow class?
I guess it's a C++ topic but maybe anybody could give me a hint how to solve this problem :-)

Thanks a lot.

Kindly regards,

Timo

[jsulm]

@Timo_F I don't understand the problem: graph and graph2 are already created in MainWindow. The only thing you need to change is: make them class member:

class MainWindow
{
private:
    Q3DScatter *graph;
    Q3DScatter *graph2;
...
};

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

graph = new Q3DScatter();

QWidget *container = QWidget::createWindowContainer(graph);

graph2 = new Q3DScatter();

QWidget *container2 = QWidget::createWindowContainer(graph2);

ui->gridLayout->addWidget(container);
ui->gridLayout_2->addWidget(container2);
}

[Timo_F]

Thanks, it works ^^.