Users Guide

296 | Using VisualRF Dell PowerConnect W-AirWave 7.5 | User Guide
 If the floor plan does require cropping, sizing, or layer control, then proceed to the next procedure.
Editing a Floor Plan Image
There are many ways to edit a floor plan that you have uploaded, as explained in the following topics:
 “Cropping the Floor Plan Image” on page296
 “Sizing a Non-CAD Floor Plan” on page296
 “Removing Color from a Floor Plan Image” on page297
 “Assigning Campus, Building and Floor Numbers” on page297
 “Assigning Optional Planner, Owner, or Installer Information for the Floor Plan” on page298
 “Controlling the Layers in the Uploaded Floor Plan (CAD only)” on page298
 “Error Checking of CAD Images” on page298
 “Last Steps in Editing an Uploaded Image” on page298
Cropping the Floor Plan Image
Cropping is available from within the Upload Wizard. Use the cropping handles (red circles) to remove extra
white space around the floor plan. VisualRF will calculate an attenuation grid for the entire map including white
space. Reducing the white space on a floor plan will increase location accuracy and decrease the load an on the
server. A good rule of thumb would be about ½ inch white space, if possible, on all sides.
VisualRF dissects each floor plan into a grid consisting of cells specified in this setting. The Core Thread service
calculates the path loss for every radio to every cell on the floor plan.
By default the importation wizard allocates 2,500 grid cells to each site based on dimensions. If you have a site
that is 250 ft. by 100 ft, the Floor Plan importation wizard would calculate the grid cell size at 10 feet. 250 ft. x
100 ft. = 25,000 ft. 25,000 ft. / 2,500 ft. = 10 ft.
Other items worth noting:
 If this is a CAD file, then the Floor Plan creation wizard will automatically inherit height and width from the
drawing.
 If this is a non-CAD file, then the height and width is zero.
 CAD files are converted to a JPG with a resolution of 4096 horizontal pixels at 100% quality prior to cropping.
If you crop, then you will lose clarity.
 CAD files must be generated from AutoCAD and may not exceed 10 MB.
 Metric CAD files are supported.
 Importing GIF files for floor plans can result in blank QuickView thumbnails.
Sizing a Non-CAD Floor Plan
You should not have to resize a CAD drawing unless you see nonsensical dimensions. To resize a non-CAD image
if you already know the dimensions, follow these steps:
1. Select the Manually Measure Floor button in the Dimensions section. The pointer changes to a cross-hair
icon.
NOTE: Floor plans can be added (imported), edited, and deleted. Currently, functionality does not exist to replace a floor plan. If
you want to import a newer floor plan to replace a current one, you must first delete the original plan and then add the new plan.
NOTE: Decreasing the grid cell size will increase accuracy, but it also increase CPU consumption by the floor caching threads and
the location caching threads. Check the System > Performance page to ensure your server is functioning properly when you make
a change to this setting.