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MultiScaleImage: Overlays, Rotation & Rendering
Hi,
I want to create shapes based annotations on multiscale images.shapes can be square,circle or can be free form graphics.it would be great if anyone has already done this before.I am following basic approach based on sprite and mouse events.
other thing i want to do how to rotate multiscale image.is it already there in OpenZoom ? if not,then what would be the best approach ?
i have found in the code that on loading deep zoom images from server,it loads all the images including images at lower zoom level.is it possible to change this behavior so no need to load other lower zoom level images on initial loading.
regards,
Rakesh
I want to create shapes based annotations on multiscale images.shapes can be square,circle or can be free form graphics.it would be great if anyone has already done this before.I am following basic approach based on sprite and mouse events.
other thing i want to do how to rotate multiscale image.is it already there in OpenZoom ? if not,then what would be the best approach ?
i have found in the code that on loading deep zoom images from server,it loads all the images including images at lower zoom level.is it possible to change this behavior so no need to load other lower zoom level images on initial loading.
regards,
Rakesh
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This reply was removed on 12/05/09.
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Inappropriate?Rakesh,
You can place any object based on DisplayObject (except UIComponent in Flex) onto a MultiScaleContainer or MultiScaleImage. Have you had a look at the examples that ship with the OpenZoom SDK?
http://github.com/openzoom/sdk/tree/m...
Rotation for MultiScaleImages hasn't been implemented yet. There's some tricky maths involved but if you want to give it a shot, I'd be happy to see what you come up with.
In early versions of the OpenZoom SDK, there was a way to control the blending between levels but this functionality has not been implemented when moving to the new and vastly improved rendering pipeline. However, if you use Zoomify instead of Deep Zoom as the file format, you can typically skip about 8 levels of the image pyramid.
What's your motivation behind wanting to prevent the loading of lower levels?
–Daniel
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