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Arc Between Arcs and offset ?

Gündüz Karaahmet
Offline

Hi,

I cannot draw the line between R=5000 and R=460 with R=400 and backward L=100 forward double spiral R=90 L=90 and back offset 15

I am attaching the dgn file and the jpg file.

Arc Betweens Arc Offset.dgn

if i use "Complex transition between and any element arc" command it doesn't do offset

I am attaching the dgn file and the jpg file.

Regarsds,

Arc Betweens Arc Offset_Complex.dgn

 

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  • 0 Offline

    It did seem to work as you defined using OpenRoads CE2022 R2

    Mike Longstreet
    Vermont Agency of Transportation
    Civil Engineering Technical Support
    VTCAD Help

  • 0 Offline in reply to Gündüz Karaahmet

    Sure, See attached.  I did not trim the ahead geometry but other than that I used the same settings you showed in the first post.

    3034.Arc Betweens Arc Offset.dgn

    Mike Longstreet
    Vermont Agency of Transportation
    Civil Engineering Technical Support
    VTCAD Help

  • 0 Offline in reply to Mike Longstreet

    Hi mike,

    this is not working right

    I have shown what should be in the attached dgn. I fixed it in the Inroads V8i (SelectSeries 2).

    Regards,

    0028.Arc Betweens Arc Offset_Complex2.dgn

  • 0 Offline in reply to Gündüz Karaahmet

    OK, I did used a 400m Radius. That is what was on the first post.  I do see that the 100m back Transition did not get constructed.  I did it with a 460 radius and it did solve but again no 100m back transition.  Strangely the back transition does not show graphically but does show in the Geometry Builder dialog.  It does not appear to be correct in the Geometry Builder i.e. the start and end Radius show as 0.0m, as well as the Arch Length even though some of the other data on the spiral are included an appear to be known criteria. Also the Begin Point coordinates in the Geometry Builder data are not correct they are (-2631.59, -1042.68) meters off. 

    All very strange and appears to be a defect.  May even be several defects here.  Arc between arch issue and a geometry builder issue but it could be a related issue.

    Fullscreen ArcBetweenArchGeometry.xml Download 
    <?xml version="1.0" encoding="UTF-16"?>
<GeometryBuilderDefinitions>
  <GeometryBuilderDefinition name="Mainline">
    <GeometryBuilderInfo featureName="Alignment\Align 1" begX="399862.11601443" begY="4460841.36139962" endX="402007.715562353" endY="4461417.54518905" endType="None" closureType="None" isForceTangent="False">
      <GeometryBuilderLegs>
        <GeometryBuilderLeg direction="6.27984328743127" distance="99.9995532361403" legType="Spiral" isClockwise="False" isChordDefinition="False" arcParam1="Radius" arcParam2="Length" arcRadius="0" arcLength="0" arcLengthChorded="0" arcDelta="0" arcTangent="0" arcExternal="0" arcMiddleOrdinate="0" arcChord="0" spiType="Clothoid" spiParam="Length" spiLength="100" spiTheta="0.0100260677762182" spiConst="706.186944087754" spiStartIsInfinite="False" spiStartRadius="4987" spiEndIsInfinite="True" spiEndRadius="∞" />
        <GeometryBuilderLeg direction="3.98548912371843" distance="611.391783714332" legType="Arc" isClockwise="True" isChordDefinition="False" arcParam1="Radius" arcParam2="Length" arcRadius="460" arcLength="668.747868133133" arcLengthChorded="667.42658543312" arcDelta="1.4537997133329" arcTangent="409.100990730532" arcExternal="155.600211676948" arcMiddleOrdinate="116.27042358614" arcChord="611.391783714332" spiType="Clothoid" spiParam="Length" spiLength="0" spiTheta="0" spiConst="0" spiStartIsInfinite="False" spiStartRadius="∞" spiEndIsInfinite="False" spiEndRadius="∞" />
        <GeometryBuilderLeg direction="3.19336923333537" distance="89.9617260415293" legType="Spiral" isClockwise="True" isChordDefinition="False" arcParam1="Radius" arcParam2="Length" arcRadius="0" arcLength="0" arcLengthChorded="0" arcDelta="0" arcTangent="0" arcExternal="0" arcMiddleOrdinate="0" arcChord="0" spiType="Clothoid" spiParam="Length" spiLength="90" spiTheta="0.0978260869565218" spiConst="203.469899493758" spiStartIsInfinite="False" spiStartRadius="460" spiEndIsInfinite="True" spiEndRadius="∞" />
        <GeometryBuilderLeg direction="3.1933692333354" distance="89.9617260414817" legType="Spiral" isClockwise="False" isChordDefinition="False" arcParam1="Radius" arcParam2="Length" arcRadius="0" arcLength="0" arcLengthChorded="0" arcDelta="0" arcTangent="0" arcExternal="0" arcMiddleOrdinate="0" arcChord="0" spiType="Clothoid" spiParam="Length" spiLength="90" spiTheta="0.0978260869565218" spiConst="203.469899493758" spiStartIsInfinite="True" spiStartRadius="∞" spiEndIsInfinite="False" spiEndRadius="460" />
      </GeometryBuilderLegs>
    </GeometryBuilderInfo>
  </GeometryBuilderDefinition>
</GeometryBuilderDefinitions>

    Mike Longstreet
    Vermont Agency of Transportation
    Civil Engineering Technical Support
    VTCAD Help

  • 0 Offline in reply to Mike Longstreet

    Hi Mike,

    The error should be reported to Bentley, can you do it

    Regards.

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