[GRASS-dev] [GRASS GIS] #2185: Painfully Slow 'v.in.ogr' Vector Import

[GRASS GIS]

#2185: Painfully Slow 'v.in.ogr' Vector Import
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  Reporter:  justinzane  |      Owner:  grass-dev@…
      Type:  defect      |     Status:  new
  Priority:  normal      |  Milestone:  7.0.6
 Component:  Vector      |    Version:  svn-trunk
Resolution:              |   Keywords:  import, OGR, performance, v.in.ogr
       CPU:  x86-64      |   Platform:  Linux
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Comment (by hcho):

 Yes, that's what I found too. Vect_line_intersection2 doesn't have this
 issue, but it still creates a single point intersection at the first
 vertex of the second new line (line ID 3) in the geojson example.

 Line ID 1: original unbroken line

 1st iteration
 Line ID 2-4: new broken lines

 2nd iteration
 Line ID 5: identical to line 3
 Line ID 6: start node of line 3

 Lines 5 & 6 shouldn't be returned at all from the intersection routine, I
 think. The patch fixes this.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2185#comment:37>
GRASS GIS <https://grass.osgeo.org>