Perform zoom out of diagram programmatically

[Dominique Toussaint]

How to perform zoom out of diagram programmatically using some of the methods of properties of the diagram? I would appreciate some sample of the code.

Best regards,

Jiway 

[Shyam G]

Hi Jiway, 

Please use the diagram zoomTo method to perform zoomIn and zoomOut operations programmatically. We have created a sample in which we have performed zoomIn and zoomOut operations at button click. Please refer to a code example and the sample below. 

Code example: 

function ZoomIn() { 

    let zoomOptions = { 

      type: "ZoomIn", 

      //Sets the factor by which we can zoom in or zoom out 

      zoomFactor: 0.5 

    } 

    //zoomin the diagram 

    diagramInstance.zoomTo(zoomOptions) 

} 

function ZoomOut() { 

    let zoomOptions = { 

      type: "ZoomOut", 

      //Sets the factor by which we can zoom in or zoom out 

      zoomFactor: 0.5 

    } 

    //zoomout the diagram 

    diagramInstance.zoomTo(zoomOptions) 

}  

Sample: https://stackblitz.com/edit/react-c1pwpy-5ezd6v?file=index.js 

Regards, 

Shyam G