pgr_createTopology does not create vertices at every end of the lines of a street network

Question

I am using pgRouting with a street network. I added lines to the network that represent straight lines from destination points I am interested to the nearest street using ST_ShortestLine(). Now I ran pgr_nodeNetwork() to split the street network accordingly, so that it is ready for basic routing. However, when I run pgr_createTopology() the vertices are not all included to have efficient routing:

select pgr_createTopology('my_table_wgs84', 0.0001, 'geom', 'street_id');

Here is a screenshot, which shows that for the highlighted red line, there are actually no vertices (red rectangles) created at all (plus you see that the connection line I created from the green destination point is actually splitted into several sublines by pgr_nodeNetwork):

For the red line, for instance, the source and target is both the red rectangle you see in the bottom left. What might be the issue that pgr_createTopology don't create vertices everywhere a line ends?

Answer 1

Try to use tolerance 0.000001 instead of 0.0001.