Roundness of objects displayed in Tekla Structures
This is a quick guide to controlling the roundness of objects in Tekla Structures. Most scenarios are more complex and involve a combination of several variables. For a more in-depth understanding of how each of these variables works, see Tekla Structures product guides.
Tekla Structures 2017 and older versions
Note: As a limitation of Tekla Structures until version 2017, each object can only support up to 99 points, so if your shapes are too complex or too round, they could exceed the maximum points and break the geometry.
Tekla Structures 2017i and newer versions
In Tekla Structures 2017i onwards, this limit is increased. The new maximum number of polygon points is 1000 for parts and bolt groups, and 999 for profile cross sections.
Note: You lose performance the smoother your curves are, so find a value that will provide the best balance.
Chamfers on contour plates
XS_CHAMFER_ACCURACY_FACTOR=16 |
XS_CHAMFER_ACCURACY_FACTOR=1 |
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Round sections
If the diameter of your round section is smaller than the value set in XS_CHORD_TOLERANCE_SMALL_TUBE_SIZE_LIMIT, then XS_CHORD_TOLERANCE_FOR_SMALL_TUBE_SEGMENTS will be used instead.
XS_CHORD_TOLERANCE_FOR_TUBE_SEGMENTS
XS_CHORD_TOLERANCE_FOR_ |
XS_CHORD_TOLERANCE_FOR_ |
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Polygon cross section profiles
Polygon cross section profiles, such as hollow-core slabs, can be complex shapes and could easily reach the 99 point limit in Tekla Structures 2017 and earlier versions, so use caution.
In Tekla Structures 2017i and newer versions, the point limit is 999.
XS_CS_CHAMFER_ |
XS_CS_CHAMFER_ |
XS_CS_CHAMFER_ |
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Polybeams
XS_POLYBEAM_CHORD_ |
XS_POLYBEAM_CHORD_ |
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Variable profiles from sketch editor
Variable profiles can be created with fixed segments or with radiused curves. If your profile is created with fixed segments, there is no way to adjust the roundness. If created with radiused curves, then the following can be applied.
XS_ROUND_SEGMENTS (not documented).
XS_ROUND_SEGMENTS=8 |
XS_ROUND_SEGMENTS=24 |
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Bolt holes
The only way to adjust the roundness of bolt holes is by using "View Properties > Display > Representation". For Holes, the options are "Fast", "Exact", and "Exact slotted holes".
Adjust the display settings > Display settings
Fast |
Exact |
Exact slotted holes |
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