I found an interesting pdf explaining zigbee orientation but more importantly I highlighted a couple of free software programs that the article says can be used to show your zigbee mesh.
Maybe worth trying? Looks like I can't insert a PDF so I will show the link to the page. Also the following text is a quote from the pdf about the zigbee software they mentioned.
"There are many free wireless network mapping software applications available, including “NetStumbler” and “Chanalyzer”. These tools provide a visual overview of the local wireless network, and indicate the number of wireless access points in the area as well as the amount of wireless network traffic on any given RF channel or frequency. This is the most basic information that you’ll need to optimize access point (AP) placement."