iframe has well documented api to listen and postMessage https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
Listen for post messages in the OHIF window (e.g. in an extension) (e.g. window.addEventListener("message", handleOnMessage); ). Be mindful of security… maybe have an allowed set of origins to post messages.
Post messages from the parent using the iframe (e.g. iframeElem.contentWindow.postMessage(msg, "http://localhost:3000");)
What are the sources of CORS errors when hosting from an nginx container? I encountered this when trying to use OHIF in combination with a dcm4che archive and I am unsure how to proceed.
see the orthanc nginx.conf; set headers 'Access-Control-Allow-Origin' and 'Cross-Origin-Resource-Policy'
Other References: https://developer.chrome.com/blog/coep-credentialless-origin-trial/
It is doable through service workers
Seems like the composite blend mode in vtk has a nonlinear signature for opacity
read more here Kitware/vtk-js#2093
we probably should define another blend mode so that we can have a linear behavior
With DICOM datasets, the coordinates generated by the measurementservice return as [x,y,z]. In the 2D space, sometimes the z is 0, other times the x is 0. E.g. points: [[0, 1.03, 4.06], [0, 1.05, 4.09]...] vs [[128.01, 132.01, 0], [129.37, 138.67, 0]...]. Is there a way we can programmatically detect the coordinate system the DICOM dataset is using?
worldToImageCoords utility function or VolumeViewport.getImageData - it has convert world to index
https://kitware.github.io/vtk-js/api/Common_DataModel_ImageData.html
Language question, is there a difference between “annotation” (term used in cornerstone) and “measurement” (used in OHIF)
In theory a measurement is a group of annotations. However, in OHIF it is just a one-to-one mapping currently.
How do I enable simultaneous synchronized scrolling of two viewports in a hanging protocol of the same series? Like you have in TMTV in the first column.
extensions/tmtv/src/getHangingProtocolModule.js
tool question: just trying to create a new tool that can cut a region of the dicom image and do some manipulations (drag/move/rotate/scale, just as the ohif annotations). any tool(freehandROI??) I can refer to? background: it is a request from my friend who want to use ohif viewer to do orthopedic preoperative surgery planning for pets.
use a binary mask; look into ITK wasm; or do it server side