OK.
It 's really simple though. So this is the idea. Um. We could pursue , um , if we thought it 's  it 's worth it but , uh , I think we  we will agree on that , um , to come up with a  with a sort of very , very first crude prototype , and do some implementation work , and do some  some research , and some modeling. So the idea is if you want to go somewhere , um , and focus on that object down  Oh , I can actually walk with this. This is nice. down here. That 's the Powder - Tower. Now , um ,  we found in our , uh , data and from experiments , that there 's three things you can do. Um , you can walk this way , and come really , really close to it. And touch it. But you cannot enter or do anything else. Unless you 're interested in rock climbing , it won't do you no good standing there. It 's just a dark alley. But you can touch it. If you want to actually go up or into the tower , you have to go this way , and then through some buildings and up some stairs and so forth. If you actually want to see the tower , and that 's what actually most people want to do , is just have a good look of it , take a picture for the family ,  you have to go this way , and go up here. And there you have a vre really view  It exploded , the  during the Thirty years - war. Really uh , interesting sight. And um , these uh  these lines are , um , paths ,
Mmm.
or so That 's ab er , i the street network of our geographic information system. And you can tell that we deliberately cut out this part. Because otherwise we couldn't get our GIS system to take  to lead people this way. It would always use the closest point to the object , and then the tourists would be faced , you know , in front of a wall , but it would do them absolutely no good. So ,  what we found interesting is , first of all , intentions differ. Maybe you want to enter a building. Maybe you want to see it , take a picture of it. Or maybe you actually want to come as close as possible to the building. For whatever reason that may be.