Elk: How to obtain a particular river network with the name of the river?

Grasshopper
1

Hi, I am still pretty new to grasshopper. I am using Elk and trying to isolate a particular river network, in this case, Kallang River. I have tried to use the Match Text Function, but how do I associate the true value to the curves representing the river? Would appreciate if someone could point me to the right direction. Thank you! The osm file can be downloaded at: https://ufile.io/18sim

GH ELK
GH ELK.PNG1875×466 90.5 KB
GH ELK.gh (13.3 KB)

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mapkallang.osm file is missing

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Thank you for highlighting, I have uploaded the osm file!

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GH ELK_001.gh (11.7 KB)

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11406×710 74.5 KB

Is this what you need?

5

in case, just add crv on that dispatch

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21409×709 104 KB
GH ELK_002.gh (14.4 KB)

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Yes it is! Thank you so much!