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the UK Vertical Offshore Reference Frame - EuroSDR

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Point in Polygon (PiP) Test<br />

Requirements<br />

• Transformation process requires PiP<br />

validation of allowable transforms<br />

• Hydrographic data => huge data<br />

volumes (multi Gb)<br />

• Conventional approach could make<br />

VORF unusable<br />

• UCL has developed new concept in<br />

high performance PiP tests<br />

• Technique based on quadtree<br />

subdivision of analysis space

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