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Adjusting video size over reference image

Joshua Sangmeister Feb 06, 2018

I'm trying to display a video over a marker/reference image. In the documentation for json contents and specifically video contents (, it says for the "translation" as well as the "scale" attribute "reference image width = 1". But when i provide a translation matrix like "[0.5, 0.0, 0.0]" its not translated by half the image width as expected, but instead by a minimal amount. I experimented a little in the editor and found the magical number 600 which is used as the width of the reference image and to which the video is scaled down if its larger. Is this correct and can anyone provide additional or more exact information for this?

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