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Modifying/Moving a Polyline

Available in: Plus, Pro, Architectural

Polylines are a series of single lines and/or arcs (segments) stored together as a single entity and are created using the Polyline command.

When a Polyline is selected the entity handles for all of its segments are displayed. The editing choices are to either Delete, modify the properties using the Properties Explorer or the Ribbon, or to move one of the entity handles.

A line segment has three entity handles, one at each end (blue) and one at its midpoint (red). Each arc segment also has three entity handles, one at each end (blue) and one at its midpoint which is also blue. Move the cursor over any of the handles and its colour changes to yellow then simply click to select it. If selected the major handle (red) attaches the whole Polyline to the cursor allowing it to be moved to a new position and clicked into place using any of the snaps and input options. (Alternatively select the move button Move  command.) If any of the minor handles are selected then they can be dragged to new positions and clicked into place using any of the snaps and input options. The attached segment(s) are updated accordingly. It is worth noting here that any tangency between segments created when the Polyline was drawn will be lost.

A Polyline also has a 'Curve Fit' property, this can be set as either 'True' or 'False'. The Properties Explorer can be used to change this setting for any Polyline regardless of whether it was created with the Polyline or Curve Fit commands.

In addition to the above when a Polyline is selected further editing options are available (below) when the middle mouse button (wheel) is pressed.

middle mouse button menu for polyline

Add Centre of gravity Point - Select this option to add a Point at the centre of gravity position (Centriod) for the Polyline. The point is drawn using the current System Point Settings. If these settings are changed at any later time the point display will update. The point created is independent of the Poyline and is created to show the current position only. If the Polyline is modified or moved then a new point would need to created in the same way to show the updated position. The point is the same as any other created with the Point command and can be moved or deleted as required.

Send to Back/Front - Use these options to move the Polyline backwards or forwards in the drawing order. This is useful when trying to position the Polyline in front of or behind other entities.

Set Hyperlink - A Hyperlink can be added to the Polyline. When selected use the dialg box that appears to set the required URL/link.

A Polyline can be Exploded into individual lines and arcs if required (only if the 'Curve Fit' property is set to 'False').

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