Hy,
I want to make a new line from a given line -->both geometry types are
MULTININESTRING
Every step the new line should be "x meters" shorter than the original.
I get the length of the line, f.e. 5000 meters (length(the_geom)) and
after the step the new Line should be only 4000 meters.
I have a idea but it isn't ready:
UPDATE table
SET the_geom = (SELECT MakeLine(StartPoint(line.the_geom),
EndPoint(line_merge(line.the_geom)))
FROM public.table line
ORDER BY line.gid);
But in if I do so I have no chance to say that the new line has to be
100meters shorter than the original line.
Are there any ideas how I can solve this problem?
Thanks,
--Daniel
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