Parallel offsets at each point may be calculated using one of three methods, depending on comma codes and dimensions.
Straights - If both the feature segments on either side of the point are straight, parallels to these segments will be calculated. The intersection of these two parallel segments will give the offset point.
Curving - If the feature is curved through the point, the direction of the curve at the point is calculated and the offset calculated perpendicular to that direction.
Bearing - If the reference feature is a design string that has a bearing dimension, BRG, on each point, the perpendicular to that bearing will be used to calculate the offset position.
Offset Parallel Feature Options
The Typed All option allows you to create a feature parallel to an existing feature in its entirety. You will be asked to indicate the reference feature and then which side of the feature the new one will be created.
The Typed Between option allows you to create a feature parallel to part of an existing feature. You will be asked to indicate the start and finish points of the parallel section followed by the side on which the parallel is to be created.
The Typed Segment option allows you to create a feature parallel to part of an existing feature. You will be asked to indicate the start and finish points of the parallel section followed by the side on which the parallel is to be created.
The Typed To Points option allows you to create a feature string that is parallel to a series of indicated points. You will be asked to indicate the points and when you have finished, the Parallel Feature dialog will be displayed asking you to define the parameters used to calculate the parallel feature.
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