If you need to move a vertex but keep the general shape of a feature, you can proportionally stretch a feature's geometry. When you drag a vertex to a new location with proportional stretching on, the proportions of the feature's segments are maintained, thereby maintaining the general shape of the feature.
Below are some examples of how polygon and line features will react to dragging a vertex with and without proportional stretching.
With proportional stretching: When it is on, other vertices are moved too. The sketch of the feature rubber sheets to maintain its shape.
No proportional stretching: When there is not proportional stretching, a vertex moves independently when it is dragged. This is the default setting.
- Click the Edit tool on the Editor toolbar and double-click the feature you want to edit.
- Click Stretch Proportionately on the Edit Vertices toolbar.
- Select and move vertices as desired. Other vertices in the feature also move to maintain the shape.
- To turn off proportional stretching, click Stretch Proportionately again.
You can also click the Editor menu, click Options, then check Stretch geometry proportionately when moving a vertex on the General tab. (The button on the Edit Vertices toolbar is simply a shortcut to this editing option.)