Tag Archives: Bricscad

Presenting metric measured drawing

This gallery contains 11 photos.

Line weights make a big difference to the readability of drawings. By emphasising opening edges depth in the view is apparent and architectural form is evident as space and volume. Sections tend to reveal the value of lineweights as queues … Continue reading

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D3aBT..back from the dead!

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It’s not often obsolete devices come back from the dead but this has happened for the Disto3aBT. Leica have released a new version of their DistoTransfer software that gets it working with Windows 10. Microsoft killed my Disto. It’s been … Continue reading

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Unlearning line: what is LOD 500?

This gallery contains 15 photos.

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 to the Model Elements.” Ref AIA, … Continue reading

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CAD … touching the Surface

This gallery contains 10 photos.

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

This gallery contains 13 photos.

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: RP Elevations by TheoLt & QGIS

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A cheap tablet for TheoLt

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Tablets are becoming ubiquitous, the rise of the iPad and its Android competitors has pushed Microsoft to develop a ‘re-worked’ tablet PC by getting Windows to work like IOS or Android. Windows is now something you can drive with your … Continue reading

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Kite aerial photogrammetry: 4 infill points & break-lines

This gallery contains 6 photos.

Hunting the edges. Ideally break lines should be digitised off the surface mesh but for speed these lines are traced of the ortho-photo as polylines then matched to the required z value before reducing them to plain 2d lines and … Continue reading

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Kite aerial photogrammetry: 3 developing the contour model.

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Point density. Digitising points off the mesh reveals the structure of the earthwork, the point density is approximately at .2m post spacing increasing to 0.1m at detail areas. A test patch at 0.05m did nothing to improve the model. As … Continue reading

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The slippery slope: CAD hachures

This gallery contains 12 photos.

The depiction of slope by hachure shading is a cartographic convention that dates back to the Austrian cavalry officer Johann Georg Lehmann who, in 1799, devised a system for the rapid military mapping of terrain by field drawing. It has … Continue reading

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