hi all;<br><br>I think 0.0 of radius means the object itself? Am i wrong?<br><br>I'm inserting a row to my route table<br><br>insert into route (the_geom) select st_transform(ST_GeomFromText('SRID=4326;multilinestring((30 20,31 21,32 22))'),900913)<br>
<br>why the result of this is false? that is a point on my route. what is defined with '0.0 of radius'? <br>the result is true for 0.1 to 0.000000001? Why for 0.0000000001 radius, result is false?<br><br>select<br>
st_intersects(st_buffer(route.the_geom,0.0), st_geomFromText('POINT(30 20)',4326)) <br>as result<br>from route<br>