Hi Keunwook,
A 2D Lookup Table would be most suitable in finding the closest corresponding road sign for a particular latitude and longitude. This lookup table will have two input parameters i.e. latitude and longitude which can be configured using Breakpoints.
The lookup table can be configured as follows:
1. First set the "Number of table dimensions" to 2.
2. Then under "Table and Breakpoints", enter the data:
- Set "Breakpoints 1" to the latitude values.
- Set "Breakpoints 2" to the longitude values.
- Enter the road sign index data in the "Table data" field.
3. Now go to the "Algorithm" tab and set "Interpolation method" as "Nearest" for discrete road signs.
Therefore, using a 2D Lookup Table with nearest neighbour interpolation will provide a quick access to the closest matching data point. This approach works for latest releases as well.
To know more about “2D Lookup Table” block, refer to the following documentation link:
