Vectorial maps can be made up of several different layers that represent different types of information. You can consult and modify the properties of these layers using the properties of the layers window. There are two ways to reach this window:
•In the data tree, right click on the layer you are interested in and select the Properties option. If you have activated the vectorial edition bar, click on the Layers administrator button and then double click on the layer that you want to see. The option window allows you to move about the different layers by using the small arrows that you will find in the top left hand corner.
The properties that are detailed in the window are: Type and name of the layer, colour and colour of the filling, activated (referring to whether the layer is or is not visible), zoom level (referring to the minimum scale at which the layer is visible), thickness of the pixel and real thickness, texture of the filling and transparency (double click on this one to adjust the opacity of the layer). All of these properties can be edited when you double click on them.
•Another method to edit the layers of a vectorial map is to use the layers administrator. This option is available by clicking on the button when the vectorial editor bar is activated. The layers administrator quickly gives you information about the different layers; you can also activate or deactivate a layer by double clicking on this field of the layer you want to work with. To access the properties of a layer window, double click on any other field or chose the properties option in the context menu of the layer (right click on it).