Tag Archives: training notes

Metric drawings from point clouds : the basics

In Recap point clouds are impressive. To get to something you can draw from they need slicing. Remember line of sight from the scanner will result in lost data in occluded areas, the ‘dark’ shadows are holes in the data. … Continue reading

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CAD … touching the Surface

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New year, new tablet, new CAD. CAD by touch on the Surface Pro 4 is interesting. On the face of it the Surface is an ideal ‘CAD on the go’ platform: plenty of processing grunt and good battery life. Sure … Continue reading

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Drawing for… understanding

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New guidance. In providing a client with a specification for historic building survey I had a reminder that Historic England has published new guidance on drawing so I took the time to read it through. It is a guide to … Continue reading

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Protected: KAP to Map: TheoContour r10 walk-through

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Topcon GPT 3000N settings for TheoLt

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  I have never been a fan of these, preferring the Heerbrugg stable but there is no denying Topcon GPT instruments are a popular choice in archaeology, especially the N versions which have a reflectorless capability. I had the good … Continue reading

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OWLP KAP workshop No1

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The Ouse and Holt Island. A canoe party paddle past St Ives Hemmingford Meadow and Holt Island: pasture and osier beds on the Ouse floodplain. Only the brave turned out, it was cold (4c) windy and early. Sunlight was sparse … Continue reading

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What makes a good KAP spot?

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This question has been troubling me since the Easter break. Folks want to know where to KAP. They see the pictures,  they ask me. What should I say? This struck me as an odd question: surely if you are a … Continue reading

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Kite aerial photogrammetry: 2 the DSM

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1st effort. The surface generated from the Sept 2014 block produced a very irregular model, I had hoped contouring would improve the interpretation of the earthwork but it did not. The contour model was horrible, even after taking out the … Continue reading

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A rig for Tim

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Tim Carter, an archaeologist working in Suffolk, got in touch and asked about KAP for site recording. After a couple of flights he has arrived at the conclusion this is an aerial platform with potential. After just 2 flights, flying … Continue reading

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LiPo battery fire

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I have  been using a set of 3 3s LiPo packs for the last 4 years or so. They have been a boon enabling extended duration of video relay from sky to ground. I recharge them slowly, never at more … Continue reading

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