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Prepare the Floor Drawings

6-2 Using RF Planning

Prepare the Floor Drawings

IfyouplantoimportAutoCADDXF™orAutoCADDWGfilesintoRASM,youshouldperform

some“cleanup”workbeforeimportingthefiles.Doingthisworkbeforeyouimportthefilesinto

RASMcreatesamorecompactfile,requiringlessstoragespace.Typically ,themoreCADdiagram

cleanupthatis

donewithintheCADsoftware,themoresmoothlythedrawingwillimportinto

RASM.

PerformthefollowingstepstocleanuptheAutoCADfile:

1. Performanaudit

2. Turnon,unlock,andunfreezealllayers

3. Removeunnecessarynotations

4. Purgeunusedblocks,linetypes,andlayers

Typically,basedonthedrawingtechniquechosenwhenthe

drawingfilewascreatedinAutoCAD

orTurboCAD,asingleobjectmightbedrawnwithmorethanoneline;forexample,walls.When

suchanobjectisimported,itresultsinmorethanoneobjectinRASM.Toavoidtheactualobject

beingdefinedasmorethanoneobstacle,delete

parallellineswithinacertaindistance.

Anothermethodyoucanusetoachievethesameresultistogroupallthelinesintooneobject.For

example,youmightgroupfourlinesthatformanofficeorconferenceroomtocreateone

attenuationfactorforthatentirearea.Or,groupmultiple

linesthatweredrawninthefloorplanto

createabiggerline.

Groupinglinesisnotalwaysrecommended.Forexample,groupinglinesintooneobjectdoesnot

workwellwithpolylines.GroupedpolylinesarerecognizedbytheplanningtoolinRASMasa

single,monolithicobstacle.Thiscausesincorrectresults

whenviewingRFcoverage.

AfteryouimportthefileintoRASM,youhavetheopportunitytoremoveanyunnecessaryobjects

overlookedduringyourinitialpreparationofthefloordrawings.Todothis,youcanusetheClean

LayoutfeatureandothereditingtoolsintheBuildingwizard.

Formoreinformationabouthow

topreparetheAutoCADfilesforRASM,refertotheRoamAbout

SwitchManagerInterfaceReferenceGuide.

Note: If your floor drawings are contained in JPEG or GIF files, this step does not apply. Go directly

to “Define Site Information” on page 6-3.

Note: Objects must not be RF Obstacles or Groups before Clean Layout is performed.

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