Some examples of the 3 techniques:

Example of a narrative line with Franz HALZ

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HALS compagnie Reael gm .png

Example of preferential angle with GIOTTO

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GIOTTO Stigmates, les angles préférentiels

Example of golden measurement with GIRODET

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GIRODET Autoportrait

Example of golden measurement with VECELLIO

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VECELLIO Annonciation 1590