Surfer provides two different ways to reshape polylines, polygons, ellipses, rectangles, and rounded rectangles:

1. by editing the x,y coordinates of the vertices
2. by reshaping to move, add, or delete vertices

The first method can also be used to change the position of a point. 

To edit the coordinates of a polyline, polygon, ellipse, rectangle, rounded rectangle, or point:

1. Select the object in the Contents or plot document.
2. In the Properties window, click the Coordinates tab.
3. Click in one of the X or Y cells to edit the value in that cell. The vertex for that particular x,y pair will be shown with a blue diamond symbol in the plot document:
   
   
   
   
3. Press ENTER on your keyboard or click out of the cell to apply the change. 

To reshape by moving, adding, or deleting vertices:

1. Select the object in the Contents or plot document.
2. Click Features | Edit Features | Reshape. The object is outlined with a red line, and the object vertices are displayed with white square symbols.
   
2. To add a vertex to the object, hold the CTRL key down, and then click where you want to add the vertex. 
   
3. To delete a point, select one of the existing vertices (it will turn into a green square) and press the DELETE key on the keyboard.
   
4. To change the shape, select an existing vertex and click-and-drag it to a new location.
5. Press ESC on the keyboard to exit reshape mode.

 Additional information about the reshape command can be found on the Reshape page in Surfer's help.

Updated April 7, 2020