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Stake Curve Offsets
To stake a curve with offsets in the horizontal and vertical directions.
To stake points along the curve formed by design points.
Click to show / hide the illustration of curve parameters used in MAGNET Field
- Define the curve. Enter these point names manually, or select from the map
or from the list
of job points:- In Point of Curve, define the starting point of the curve.
- In Point of Tangent, define the ending point of the curve.
- Select between Radius / Chord Angle / Curve Angle / Radius Point / Curve Point and define the radius of the curve as required.
- In Ht Comp, select the type of height computations for the computed points:
- Ht of Start Pt (height of the start point): The computed points will have the same height as the start point of the curve. In this case you can set the station for the start point in the horizontal plane only.
- Interpolate Ht: The height of the computed points will be computed through linear interpolation using the height of the start and end points of the curve. In this case, the Start 2D / Start 3D button is available.
Note: If reference surface is enabled, the computed points will have the same height as the reference surface height (Ref Surface Ht).
- In the field next to the Start 2D / Start 3D button, you can set stakeout start station from the start point along the curve in the horizontal plane or 3D. Also the curve length is displayed for the selected mode.
- In the Turn drop-down list, select the direction of turn, relative to the Point of Curve. (This parameter is available if Radius / Chord Angle / Curve Angle was used to define the curve radius.)
- If the Radius Point was used to define the curve radius, the Curve drop-down list is available instead of Turn. In this case, the distance between Radius Point and Point of Curve should be equal to the distance between Radius Point and Point of Tangent. The Radius Point, the Point of Curve, and Point of Tangent define two curves - one with delta less than or equal to 180 degrees (Small curve) and the other with delta greater than or equal to 180 degrees (Large curve). Select either Small or Large from the Curve drop-down list to indicate which of these two curves should be used.
- Select the Include Transition Point check box to include start and end points if they do not fall on a designated station.
- The Stake Report field shows the name of the current stake report if it is set. Click
to open the Stake Reports List dialog to select the desired report or add a new one.
- Click Next to proceed in the Station & Offsets dialog.
Click
to open the dialog menu with additional options. More...
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