Zoom to fit after changing layout

@g.bartoli wrote:

Hi Walter,
I managed to produce a graph with a behavior similar to the Fishbone example where buttons are used to dynamically change the layout (I'm switching between TreeLayout and ForceDirectedLayout).

However, I would like the zoom to be adjusted to fit both graphs when changing them, because at the moment the zoom remains fixed to the initial level I set with initialAutoScale: go.Diagram.Uniform in the Diagram. For the first view it's fine, but it should changed to fit also the second view.

These are my simple switching functions connected to the button callbacks:

function setTreeLayout() {
    myDiagram.startTransaction("tree_layout");
    myDiagram.layout = $(go.TreeLayout,
    {
        nodeSpacing: 40,
        layerSpacing: 180
    });
    myDiagram.commitTransaction("tree_layout");
}

function setDynamicLayout() {
    myDiagram.startTransaction("dynamic_layout");
    myDiagram.layout = $(go.ForceDirectedLayout,
    {
        defaultSpringLength: 30,
        defaultElectricalCharge: 200
    });
    myDiagram.commitTransaction("dynamic_layout");
}

Do you know which is the fastest way to update the zoom level?

Thanks,
Guido

Posts: 4

Participants: 2

Read full topic