Replace same start & end points in many routes?

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Peobody
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Replace same start & end points in many routes?

Post by Peobody »

I have moved into a new house. Most of my routes use one of two Waypoints as the start and/or end points of most of my saved routes. I would like to replace those Waypoints with ones close to my new house. I am thinking that I could just change the description and coordinates of those two Waypoints. Thoughts? Suggestions?
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Les
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Re: Replace same start & end points in many routes?

Post by Les »

I would just right click on the waypoint and select 'Move Waypoint'.
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Re: Replace same start & end points in many routes?

Post by jfheath »

What @Les said is correct. If there is just one location that you have used over and over again, find any one of them and move it. Job done. All of the routes that have the same point (with the identical name) in them will now have that point in its new location.

What follows is an answer with a lot more detail:

The BC database is a properly structured, 'fully normalised' database. Which basically means it has no unnecessary data duplication. So you don't store information about each point lots of times if you are going to use it more than once. You store it once and then refer to it by the name that you give - which must be unique. So the same waypoint can appear in lots of routes, but its data is stored only once.

So suppose you have used HOME as the name of a Waypoint and you use the name HOME in 100 of your routes. Although the Waypoint Home will appear in 100 routes - the information that is associated with it is stored only once. Change the coordinates that are assoicated with HOME and every single route will have HOME shown in the new location. You MAY have to recalcuate your routes - I am not sure.

There is only one HOME. You may have created a number of them though - if so, you will have noticed that you cannot use the word HOME more than once. So you may have used the name HOME1, HOME2, HOME3 etc. Thse may have exactly the same coordinates, but they are not the same point. It is the name of the point that is the identifier and HOME, HOME1, HOME2, HOME3 are all different names referring to different points - Even if they are placed at the same location.

Note that it does not matter whereabouts you change the location of HOME - eg if you have used the Waypoint HOME in ROUTE1, ROUTE2,... all the way to ROUTE100. You coud load say ROUTE57, find the reference to HOME and change its data. Every other reference to HOME will show the new data. That is because the data is only stored in one location. When you change it, it is altered in that single location. When you look at HOME in ROUTE66, that is referring to the same location and it finds the changed data.



You will see a similar sort of thing with route 'Activity Profiles'. You can set up a Profile which contains all of the information about how the route should be calculated - type of vehicle, type of routing, feature avoidances, road type avoidances, area avoidances, average speeds on each road type.
You can name this whatever you want and apply it to any route that you want. Typically people use the profile called 'motorcycle'. When they do - every route that uses the information in the profile called 'Motorcycle' will be calculated using the same set of options. The preferences are saved just once in the Activity Profile called Motorcycle, but lots of routes use the same setting.

That means that if you change the data that is stored with the Motorcycle profile name, then that affects every route that has used that Motorcycle profile for its route calculation. BC goes away for a couple of hours while it has to recalculate every route using the new information.

Of course - you don't have to use an 'Activity Profile'. You can instead save a one-off set of preferences that are stored individually with each such route. For this you select 'Custom Route Options' - rather than specifying a profile name.
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Re: Replace same start & end points in many routes?

Post by Peobody »

jfheath wrote: 30 Jan 2025 17:23 What @Les said is correct. If there is just one location that you have used over and over again, find any one of them and move it. Job done. All of the routes that have the same point (with the identical name) in them will now have that point in its new location.
Moving and then renaming accomplishes the same as changing the coordinates and then renaming but saves the step of finding and copying coordinates. Thanks guys.

Unfortunately I have discovered that many of my routes have route points located between my new house and my old house so my vision of correcting the routes by just changing the location of my routinely-used start and end waypoints was just a fantasy. It's a start though.
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Re: Replace same start & end points in many routes?

Post by jfheath »

Closest Entry Point may work for a good many of the routes. Some would produce 'interesting' results though.
Have owned Zumo 550, 660 == Now have Zumo XT2, XT, 595, 590, Headache
Use Basecamp (mainly), MyRouteApp (sometimes), Competent with Tread for XT2, Can use Explore for XT - but it offers nothing that I want !

Links: Zumo 590/5 & BC . . . Zumo XT & BC