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8.12.2.9 IfcHatchLineDistanceSelect

8.12.2.9.1 Semantic definition

The IfcHatchLineDistanceSelect is a selection between different ways to determine the distance and optionally the start point of hatch lines, either by an offset distance measure or by a vector.

The vector, if selected, acts as a one time repeat factor in the fill area style hatching for determining the origin of the repeated hatch line relative to the origin of the previous hatch line, Given the initial position of any hatch line, the one direction repeat factor determines two new positions according to the equation:

{ .extDef}

I + k * R k ∈{-1,1}

Figure A shows the use of a vector for hatch line distances

IfcHatchLineDistanceSelect_Fig1.gif 3,8 KB
Figure A — vector as one direction repeat factor

8.12.2.9.2 Type values

Type
IfcPositiveLengthMeasure
IfcVector
Table B

8.12.2.9.3 Formal representation

TYPE IfcHatchLineDistanceSelect = SELECT
(IfcPositiveLengthMeasure
,IfcVector);
END_TYPE;

8.12.2.9.4 References

Edit on Github

3 contributor(s): ArturTomczakbSI-BotDion Moult
Last change: Improve definition split (#876) * bring back headers headers were previously removed by mistake, now bringing them back * add new lines and rename the tag add the word 'short' in it * unify newlines make exactly one newline before and two after the tag * resolving typos Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 2024-07-16T16:07:28+02:00

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8.12.2.9.5 Changelog

8.12.2.9.5.1 IFC4

  • item, IfcVector
  • item, IfcOneDirectionRepeatFactor