Move Points on a Polygon

If the selected item is a polygon and this button is pressed, the bounding-box and its points will be deleted and coordinate points for the shape will be displayed. An example of what you see is given below :

Now a point can be picked up and relocated in the following way :

< Press Mouse Button-1 >
In one of the coordinate points selects that point to be moved.This point is picked up and is now ready to be moved to a new position.

< Drag Mouse With Button-1 Pressed >
Creates a visual aid for the user in the form of a line connecting the point being moved to the points on either side of it.

< Release Mouse Button-1 >
Identifies the new location for the point, redraws the altered shape, and reselects it.


Adding Points onto a Polygon

If the selected item is a polygon and this button is pressed the bounding-box and its points will be deleted and coordinate points for the shape will be shown as follows :

In a similar method to the Move-point option, a point can be added in the following way :

< Press Mouse Button-1 >
In one of the coordinate points selects that point and arranges for a point to be added after that one.

< Drag Mouse With Button-1 Pressed >
Creates a visual aid for the user in the form of a joining line between the point originally selected, the current cursor location and the point after it.

< Release Mouse Button-1 >
Identifies the location for the new point to be drawn, and redraws the shape with the additional point. It is then reselected.

For example, if from the above diagram point 3 is selected, a point will be inserted between point 3 and point 4 therefore renumbering the points as shown below :

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Gudge.