Tutorials BimCraft help Walkthroughs
Points for setting out, and as-built checks
Number the places a crew sets out from the model — column centres, wall ends, anchor bolts, sleeves, any element you pick — write them for a total station, then read the crew's as-built points back and see what is out.
Written for BimCraft 0.6.1. The same help is inside the app: press F1.
The Points tab on the right makes the points a crew sets out on site from the open model, and checks the points they measure afterwards.
Make the points
- Open an IFC model and the Points tab.
- Tick what to set out: column centres (the foot of each column's centre line), wall ends (both ends of each wall's axis, at its base), anchor bolts, sleeves (elements whose name or type says sleeve), and the picked elements (each at its placement point — pick them in the view first).
- Choose the first number and a prefix, the coordinates, the units, the columns and the file:
- Model: the file's own coordinates. Survey grid: the map grid of the model's georeference (shown only when the IFC has a map conversion), in metres or the unit you choose.
- Columns PNEZD (point, northing, easting, elevation, description), PENZD or XYZ; CSV (commas) or TXT (tabs).
- Press Make points: the list shows them and the view marks them in blue. Download the points writes the file.
Points come in a fixed order — by kind, then in rows across the plan — so making them again from the same model gives the same numbers. The file is the one CivilCraft opens and CadCraft's EXPORTPOINTS writes: one point per line, three decimals, a description in quotes when it holds a comma.
Check the as-built points
When the crew sends back what they measured, choose a tolerance in millimetres and how to pair the points — by point number (they kept your numbers) or the nearest shot — and press Read as-built points…. Read the file in the same units and coordinates you wrote.
Each design point is then within the tolerance, outside it, not measured, and any shot nobody asked for is extra. The table gives the differences in millimetres (as built minus design: east, north, height, and the distance in plan); the view marks each point green or red with a line to the shot, and grey when it was not measured. Report (CSV) writes the whole comparison.
Nothing here changes the model. Not built yet: setting out from slab edges, grid intersections or openings made for you, and sending points to an instrument directly — use the file.