Reliable way of tracking active image in viewport

supasus · December 8, 2021, 8:29am

How can I reliably track what image is currently ACTIVE in the viewport? (as in, user has clicked on it and it has a yellow border around it, ready to receive input)

alireza · December 8, 2021, 1:52pm

Which OHIF version you are using?

supasus · December 9, 2021, 4:05pm

Hello! 4.8.5, I believe.

alireza · December 10, 2021, 4:23pm

You can take the index from here

github.com

OHIF/Viewers/blob/4110b0422cc05be44e664c56dfd258c2a02ce522/platform/core/src/redux/reducers/viewports.js#L19

    
      
            SET_VIEWPORT_ACTIVE,
            SET_VIEWPORT_LAYOUT,
            SET_VIEWPORT_LAYOUT_AND_DATA,
          } from './../constants/ActionTypes.js';
          
          
setAutoFreeze(false);
          
          
export const DEFAULT_STATE = {
            numRows: 1,
            numColumns: 1,
            activeViewportIndex: 0,
            layout: {
              viewports: [{}],
            },
            viewportSpecificData: {},
          };
          
          
/**
           *  Take the new number of Rows and Columns, delete all not used viewport data and also set
           *  active viewport as default in case current one is not available anymore.
           *

supasus · December 14, 2021, 5:52pm

Cheers! Now how do I access an image object knowing the viewport index? i haven’t seen a method for getting a viewport from id. Thank you.

supasus · December 15, 2021, 2:15am

I was able to achieve what I was looking to do by adding an event listener on Cornerstone Element Event: cornerstonetoolsmeasurementadded and accessing the image through event.detail.image

rhdwsmr · November 10, 2022, 9:17am

Hi @supasus, could you please share the snippet of your code? thanks a lot, i could really use some help!

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Reliable way of tracking active image in viewport

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