Layers classes

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In addition to the list of upper level's layers there are added the layers of lower levels called classes. Layers together with classes form a tree of layers. In the Layers bookmark there is added the Classes button for editing a tree of layers.

In the object description the name of a layer of upper level and the name of the lower class is displayed. At a choice of an object class in the list all tree of classes of a current object layer is displayed.

 

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To create a new class, you must click on the Add button. The fields will be filled with data from the layer or class the cursor was on. It is necessary to correct the data and by pressing the Save button the class is written as a child to the selected class, layer.

To correct the class data, select the class, correct the data, and click the Save button. Fields with invalid data are highlighted.

You can control the visibility of objects using the Show objects checkbox.

Objects that are not included into the classes belong to the top layer. To transfer objects to a class/layer, you need to: select several objects with the mouse, select the option «Remember selected objects» in the drop-down menu, then select the desired class/layer and select the option «Transfer selected objects into class/layer» in the drop-down menu.