I'm trying to construct a 3D network for building interiors (I'm absolutely new on 3D!!!), and maybe my question is so obvious, but:
do I need to draw on a separate feature class elevators and stairs??? In the example here: http://www.arcgis.com/home/item.html?id=d6bd91b2fddc483b8ccbc66942db84cb every floor is on a separate feature as floor transitions (elevators and stairs) and I would like to know if it is the only way to obtain routes inside buildings.
Thank you in advance!!!!!!!
We actually just recently released a sample workflow including tools to do just this. Check out the following link: http://www.arcgis.com/home/item.html?id=66cd6ea44302402c9eaad7ae0ad2bf72. In particular, see the pdf file inside the "Indoor Network Creation" folder. We're still actively developing the workflow and tools, so we welcome comments and questions.
Thank you, george!!!!!
it is reaaaally useful the workflow you send!!!.
What I still don't get is the prerequisite my layers should have. I only have one layer, "building", and I don't really understand the requirements it needs.
thank you in advance!!!!
Glad you're finding the workflow useful! The workflow assumes that you have:
1. a polygon feature class of floor outlines
2. a polyline feature class of internal floor plan lines (walls, doors, etc.)
3. a polygon feature class of rooms.
Each feature in the first feature class is covered with a 'lattice' of polyline features, and then unwanted features are cut out using the last two feature classes; the user selects which floor plan line and room features should not have network features crossing them. The tools we've created thus far require all three feature classes, and they need to have the attributes listed in the workflow documentation. However, for the last two feature classes, it should be possible to use an empty feature class for either or both of them if you don't have such data available.
What kind of data does your building layer include? Is it a feature class or shapefile? Is it polygon, polyline?
Please do not add true "z" data from a DEM to a building data as it will destroy the existing artificial Z's one may have to make a building with different floors offset from ground.
At a minimum, you need is a building line feature class with polylineZ for the hallway centerlines for you to route on and in addition, the stairs, elevator lines connected for the movement between the floors. You can have more as needed for restricted doors,etc. For visualization you may need other polygon feature classes to show offices, building, etc.