Importing or Drawing Floor Details 1213 Type the actual distance between the two points.4 Click OK.Until you adjust or verify the scale of a floor, 3WXM reminds you to do soeach time you navigate to the Edit Content page when the floor isdisplayed. To stop the reminders, perform the procedure above, butinstead of typing the distance, just leave the distance unchanged, andclick OK.Working with Layers Most drawings contain multiple layers of information. 3WXM allows youto hide, add and delete individual layers. You also can add and removeobjects and move objects from one layer to another. For RF planning, youcan convert existing objects into RF obstacles and add new RF obstacles.Generally, only some of a drawing’s layers contain details relevant to RFplanning. You can hide layers to simplify a drawing. 3WXM performs RFcalculations only with information in visible layers. Each drawing that youimport into 3WXM has a layer 0, which contains information that 3WXMcreates. You can hide layer 0 but you cannot delete it, and 3WXMrequires layer 0 to be visible when calculating RF coverage or performingrogue detection. If you start one of these operations with layer 0 hidden,3WXM displays a message offering to make layer 0 visible again.For best performance and simpler planning, 3Com recommends that youhide or remove unnecessary layers and remove unnecessary objects. TheClean Layout option automatically deletes all objects that meet thecleanup criteria, which you can modify. (See “Cleaning Up a Drawing” onpage 123.) You also can select and delete individual objects.Hiding LayersWith the drawing displayed in the View panel of the Edit Content page(in the Building wizard), click the checkbox in the Visible column next tothe layer name to show or hide the layer.Figure 4 shows the same floor plan as Figure 3 after hiding unnecessarylayers.
