Make sure the floor plan image is legible and is as accurate as possible.  A good floor plan/site map should be clear enough when viewed at a normal scale (1:1) without zooming.

 

One consideration when selecting your floor plan image/file is to minimize the amount of unnecessary white space around the outside of your floor plan because excessive white space can take up screen real estate and require zooming in just to see the applicable area. In addition, ensure that your floor plan has enough resolution to capture any key details you will need to see when conducting a survey.  Another consideration when selecting your floor plan image/file is to minimize the amount of color in the floor plan; black and white images are best as any color in the floor plan image may affect the color of the heatmap.

 

File Format	Description
.BMP	The standard Bit-Mapped Graphics format used in the Windows environment.
.DIB	Device-Independent Bitmap, a variant of a bitmap (bmp) file.
.DWF	DWF is an Autodesk Design Web Format file. This file format is highly compressed for efficient distribution. Note: Project exports are not supported with this file type.
.DWG	DWG is file format for AutoCAD drawing files in MS-DOS and Windows. DWG is now being supported by certain non-AutoCAD systems in the same manner that DXF is supported by non-AutoCAD systems. See .DXF below.
.DXF	Data Exchange Format is a format for storing vector data in ASCII or binary files used by AutoCAD and other CAD software for data interchange.
.EMF	(Enhanced MetaFile) and WMF (Windows MetaFile) are the major display formats of the Windows operating environment and the native graphics formats for MS Office applications.
.GIF	Graphics Interchange Format is a variation of the bitmap image format for pictures with up to 256 distinct colors.
.JPG	Short for .JPEG (Joint Photographics Experts Group); a file format widely used for web images.
.PNG	Portable Network Graphics is a bitmapped image format that uses less data compression.
.VSD	Microsoft Visio 2010 image file.
.WMF	Windows MetaFile. See .EMF above.
.VDX	Visio drawing.

Calibrating the Floor Plan

Once imported, the floor plan will need to be calibrated. Calibration of the dimensions of your site ensures that propagation estimations and signal loss interpolation is calculated accurately. When performing calibration, it’s best to pick a larger dimension (if known) such as the width of the building or the length of a long hallway. Small errors in a large measurement are less impactful to your results than small errors in a small measurement (such as a doorway).