I'm trying to solve the transport problem and make the visualization using Geotools. In attached pic that is what I mean. My car is between V3 and V4. Its position can I get with a query like "*SELECT ST_Line_Interpolate_Point*( linestring1, 0.6);" Ok, I got it's position, but how can I receive nearest real vertices v3 and v4? I hope, there is a method with only one query. Thanks.
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