Litton, Tom - CEPM wrote:
What is the most efficient way of retrieving the image height from the DOM object?
SVG is a scalable format so you need to define 'height'? If your content is 'well behaved' you should be able to just ask for the width/height attributes on the root element.
The transcoder allows one to override these with hints which you could also query.
I've implemented my own transcoder which delegates to one of several other transcoders. However, before the delegation takes place I need to do some calculations based on the height of the image.
Currently i'm calling transcode(document, s, transcoderoutput) on the super class (SVGAbstractTranscoder), but that seems like a very inefficient thing to do just to get the height.
Well this depends, most of the transcoders need to do that before they can output the image. So what might be best would be to subclass the transcoders you are delegating to so you can insert your computations between when they call the parent transcode method and when they actually create their output.
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