Hello, I have a table with items from a total station, where they relieved the dimensions of an oil storage tank. I need to spend those points in CAD and generate a surface from them. The table is divided into coordinates X, Y & Z. Is there a simple way to do this?
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Total Station
- Thread starter Makun
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cherrypicker
Civil/Environmental
A simple spreadsheet can be produced to calculate the following data:
Each coordinate (X & Y) will produce a polar disatnce from a defined centre coordinate and a WCB from that centre.
The new X ordinate is produced by the arc distance from grid north around the circle given a theoretical radius (or mean radius if not known).
The Y ordinate uses the old Z value.
The Z ordinate uses the difference in polar distance to the theoretical (mean) radius.
Replotting these new coordinates will produce a flat "map" of the cylinder looking from the centre point in a clockwise direction. Z values will allow the surface to be contoured at a suitable interval to highlight whatever issues the survey is required to show. I use LSS to map the surveys and graphically illustrate anomolies with "height bands" and export to AutoCAD format as the company standard for presentation.
good luck..
Each coordinate (X & Y) will produce a polar disatnce from a defined centre coordinate and a WCB from that centre.
The new X ordinate is produced by the arc distance from grid north around the circle given a theoretical radius (or mean radius if not known).
The Y ordinate uses the old Z value.
The Z ordinate uses the difference in polar distance to the theoretical (mean) radius.
Replotting these new coordinates will produce a flat "map" of the cylinder looking from the centre point in a clockwise direction. Z values will allow the surface to be contoured at a suitable interval to highlight whatever issues the survey is required to show. I use LSS to map the surveys and graphically illustrate anomolies with "height bands" and export to AutoCAD format as the company standard for presentation.
good luck..
cherrypicker
Civil/Environmental
"What flavor of CAD?"...
I forgot to mention the cylinder is assumed to be vertical (or data exported from AutoCAD when the UCS is aligned to indicate it as such).
This is broadly the technique I use to illustrate surveyed deviations from a true cylinder using the most suitable features from software available to me.
For your information, software used:-
Spreadsheet - Microsoft Excel 2003 SP3 - CAD - AutoCAD Architecture 2008 SP1 - Modelling software - LSS version 9.70.15 -
This is recognised as a work around to find a solution to a peculiar problem and being flexible enough to solve it.
best regards..
I forgot to mention the cylinder is assumed to be vertical (or data exported from AutoCAD when the UCS is aligned to indicate it as such).
This is broadly the technique I use to illustrate surveyed deviations from a true cylinder using the most suitable features from software available to me.
For your information, software used:-
Spreadsheet - Microsoft Excel 2003 SP3 - CAD - AutoCAD Architecture 2008 SP1 - Modelling software - LSS version 9.70.15 -
This is recognised as a work around to find a solution to a peculiar problem and being flexible enough to solve it.
best regards..
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