Přidání ID Začátku a Konce do třídy prvků čáry z třídy prvků bodu

Question

<\/HEAD>Mám čáry představující odvodňovací struktury digitalizované od horního toku k dolnímu toku a body na každém konci těchto struktur. Bod je přichyceny na konec každé polylinie. Existuje způsob, jak přidat ID začátku a konce bodů (každému bodu jsem přiřadil jedinečné ID) z třídy prvků bodu do třídy prvků čáry, ke které je přichycena? Používám ArcGIS Desktop 10.3.<\/P> <\/P> Děkuji!<\/P><\/BODY><\/HTML>

DanPatterson_Retired · Answer

it depends on which way you do the join, point to polylines  or polylines to point with a spatial join.  There are also several options to control how is is done, which geometries are replicated and what attributes are kept. Spatial Join—Help | ArcGIS for Desktop

sometimes you need to combine spatial joins with attribute joins to get the data in the format you want....barring that, it is code time, but invest in the tools that are available, since your situation is not unique I am sure of that.

PS  I didn't look at linear referencing tools and I can't remember offhand whether there may be something useful there.

AnnMarie_Bergmann · Answer

That would work except I have one point connected to multiple pipes. So one point could represent both upstream and downstream depending on the pipe it's connected to.

DanPatterson_Retired · Answer

Well you could at least add the attributes of the start and end points of the lines using

Add Geometry Attributes—Help | ArcGIS for Desktop

then a spatial join, might be good methods to co-locate the data