Autoadjust in multichart plot

[DAVID ALEJANDRO PINEDA]

Hi!

I'm working in a multichart graph in real time, the only problem that i have now is the autoadjust for the widths in some casos didn't happend and I can't found some parameter to set this manually.

The idea is to adjust at same width every chart for every row. Any idea?

Thanks for the help :)

Attach a image and the code.

https://gitlab.com/centro-sismologico/plotstation-pyqtgraph/-/blob/master/main_window_n_joinrb.py

[Martin Chase]

Hola David,

Have you tried `setXLink`? Probably somewhere in your `StationLayoutWidget` class, I'm guessing, but it'll work anywhere you have access to all the plots you want linked together. Here's an example: https://github.com/pyqtgraph/pyqtgraph/blob/master/pyqtgraph/examples/MultiplePlotAxes.py#L23

Buena suerte,

 - Martin (he/him)

[DAVID ALEJANDRO PINEDA]

Hi Martin.

I tried the setXlink and viewbox linkedViewChanged, as is showed at the example link that you shared to me.

Didn't work, mi method to update data and 'view size' is in plot_station.py and is this:

```
    def setData(self, data):
        for name, axis in self.map_axis.items():
            data_axis = data[name]
            curve = getattr(self, axis)
            if curve:
                timelist = [a for a,b  in data_axis]
                valuelist = [b for a,b  in data_axis]
                curve.setData(
                    x=timelist,
                    y=valuelist)
        self.p1.setAutoVisible()
        self.p2.setAutoVisible()
        self.p3.setAutoVisible()
        # self.p2.setGeometry(self.p1.vb.sceneBoundingRect())
        # self.p3.setGeometry(self.p2.vb.sceneBoundingRect())
        self.p2.vb.linkedViewChanged(self.p1.vb, self.p2.vb.XAxis)
        self.p3.vb.linkedViewChanged(self.p2.vb, self.p3.vb.XAxis)

```

The las two lines are, if I understand correctly, the linked to the chart on the left and positionen acordly it.

But the problem can'y be resolved in that way.

This happend when I put more than 10 rows, so ...

There some more mannually form to assign a % for every item in  a row?

Best regards!

David Pineda Osorio

Ingeniero Civil Electricista

Ingeniero en área Geodesia del Centro Sismológico
f: +56 9 82142267

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[DAVID ALEJANDRO PINEDA]

Well, I think solved for the moment with this method.

```

    def updateViewBox(self):
        """
        TODO: More control to adjust charts
        """
        rect = self.parent.viewRect()
        label_rect = self.label.boundingRect()
        w_available = int(.9*((rect.width() - label_rect.width())/3))
        self.plot_station.p1\
            .getAxis("bottom")\
            .setWidth(w_available)
        self.plot_station.p2\
            .getAxis("bottom")\
            .setWidth(w_available)
        self.plot_station.p3\
            .getAxis("bottom")\
            .setWidth(w_available)

```

At the StationLayoutWidget class.

David Pineda Osorio

Ingeniero Civil Electricista

Ingeniero en área Geodesia del Centro Sismológico
f: +56 9 82142267