Author Archives: billboyheritagesurvey

About billboyheritagesurvey

Heritage worker

RP Elevations by TheoLt & QGIS

This gallery contains 14 photos.

Originally posted on Billboyheritagesurvey's Blog:
Required tools • AutoCAD /BricsCAD • TheoLt • Image processing tools: Light room/Photoshop/MS Paintshop • QGIS https://www.qgis.org/en/site/forusers/download.html# QGIS is a freeware, open source, GIS compiler for map based database work. It includes a useful…

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As built 1856

This gallery contains 11 photos.

Preliminary results of metric survey for conservation. TST traverse and wireframe plus rectified photography, measured drawing and roof details by KAP: B

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Pendulum vs Picavet FAB

This gallery contains 3 photos.

A brain damaged noob writes – what is the difference in use between a pendulum and a picavet? ie the FAB of each solution. Thanks Good question. Turns out ‘FAB’ means ‘features, advantages & benefits’ so the following might be … Continue reading

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2 & half D

This gallery contains 7 photos.

Working up drawings from wire frames and point clouds needs a way to get 3D info into 2D space. Selective modelling provides a method for edge extraction of complex or repetitive details. The projection of curved or oblique alignments onto … Continue reading

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The twin churches at Swaffham Prior

This gallery contains 13 photos.

Any visitor to Swaffham Prior will be puzzled at to why there are 2 churches in the same churchyard there. The story something of  a puzzle but there are good online sources which cover the detail. In this post find … Continue reading

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Unlearning line: what is LOD 500?

This gallery contains 10 photos.

Originally posted on Billboyheritagesurvey's Blog:
Can a survey scale relate to a BIM* LOD? “LOD 500: The Model Element is a field verified representation in terms of size, shape, location, quantity, and orientation. Non-graphic information may also be attached…

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Plot lines: CAD to PDF

This gallery contains 19 photos.

I have clients who want definitive plots from PDF, they don’t want DWG they actually want paper and, for them, PDF is paper equivalent. I quickly discovered PDF does its own thing when it comes to line weights, and to … Continue reading

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1:50 Level Of Detail

This gallery contains 11 photos.

Mapping heritage value. This recent project specified a 1:50 issue, at plot size the font (above) above appears as 20mm tall, the moulding lines are suggestive rather than ‘as cut’ but none the less depict a close facsimile of the … Continue reading

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Decorated & perp friezes

This gallery contains 5 photos.

Dealing with foliate detail is tricky, half the struggle is deciding on a system of depiction. Fortunately others have been here before us and following a template makes the job easier. The mason who cut the stone would have been … Continue reading

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Missing mild

This gallery contains 8 photos.

The bar at the Punch Bowl Old Market St Bristol has a framed copy this entry from the 1893 trade directory for the amusement of drinkers, I asked for the mild and the barmaid blanked me: mild? what’s that? Rogers’ … Continue reading

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