Offset 3d Polyline
Stepped Offset C3d
Purpose To offset a 3D Polyline (also works with 2D Polylines) horizontally and/or vertically. Horizontal geometry works like the CAD Offset command with vertical geometry fixed by distance and/or gradient. May be used to relate a kerb from a design channel. Operation Select the 3D Polyline or enter 'Y' if a 2D Polyline is to be offset. Pick a point to indicate direction of offset. Enter values into the dialogue with the appropriate 'Keep' setting.
To set Quick Settings first select the setting in the pull down menu (e.g. 'Setting 1'), then edit the gradient values in dialog and execute the offset command. You can give a name for this setting for future reference.
Offset 3D Polyline Offset 3D Polyline This command allows you to offset a 3D polyline entity in both the horizontal and vertical directions. There are four offset methods. The Interval method applies one horizontal and one vertical offset to all the vertices of the polyline. The Constant method has a horizontal offset and sets the elevation of the polyline to one constant elevation. The Variable method allows you to specify each horizontal and vertical offset individually either by polyline segment or for each point.
Cannot Offset Polyline
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Autocad 3d Offset
The vertical offset can be specified by actual vertical distance, percent slope or slope ratio. Finally, the Surface method allows you to offset the 3D Polyline to intersect a target surface defined by a triangulation or grid file. This functions much like the Design Pad Template command on the Surface menu, but without creating side slope faces; only the intercept (or 'daylight') line is created. Prompts Enter the offset method /Constant/Variable/Surface: press Enter Vertical/: 15 Percent/Ratio/Vertical offset amount: 10 Select a polyline to offset (Enter for none): select a 3D poly Select side to offset: pick a point Select a point on the graphics screen that is in the direction of the side of line to offset. Select a polyline to offset (Enter for none): press Enter.
Posted on June 13, 2012 Author: Gaurav Bagga AutoCAD Civil 3D, AutoCAD. While working on a grading I needed to change grades along a path that had been defined as a 2D polyline. Well, it is a fact that a 2D polyline cannot hold different elevations at different vertices. If you need an offset that is between 2 polylines and the 2 polylines are not truly parallel to each other, the result of the polyline might not be the desired result.