Sketch Tool

 

 

"Sketch Tool" can be used to add point, polyline, and polygon features. When you need to add point features, choose the point layer in "Edit Target", and click the location you would like to add the point feature in the map window. Then, the point feature is added.

 

           

 

To add a polyline feature, you need to choose the polyline layer you would like to edit in "Edit Target." Then, click the map window to create the first vertex, drag a line segment, and click again to create the second vertex. You can repeat the actions until a polyline feature is completed. To finish the sketch, you can double-click or right-click and click "Finish Sketch."

 

           

 

 

To add polygon features, you need to choose the polygon layer in "Edit Target" and select "Sketch Tool." Then, in the Map Window, you can click to create the first vertex, drag to the location for the second vertex and click. You can repeat the actions until the polygon feature is completed. To finish the sketch, you can double-click or right-click and click "Finish Sketch."

 

                             

   

       

During the process of sketching a polyline or polygon feature, the right-click menu might be different; it depends on whether the mouse cursor is on a vertex or not. If your mouse cursor is not on a vertex, the right-click menu will be Graph 1; if the mouse cursor is on a vertex, the right-click menu will be Graph 2.

 

        　　　

                            Graph 1                                                    Graph 2

 

                     

These functions on the two menus are advanced, so the functions will be introduced in detail in "Editing Vertices."

 

 

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