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Geographic Information Systems

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    Perhaps it is as simple as inserting a line in your input data??? It is anybody's guess where the missing street should be, but you could always plot it at the mid-point between "13" and "15". Who is to say you will be wrong? Frankly, this doesn't look like a question with merit. Commented Feb 1 at 9:57
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    Whaaat? This is one super fun question! But I see no easy way with just GDAL commandline tools. Are using QGIS or Python code options? Commented Feb 1 at 12:18
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    Create a polygon between 13 and 15 and generate a skeleton with some tool like postgis.net/docs/ST_StraightSkeleton.html. Doing all that with GDAL command line tools feels complicated. Commented Feb 1 at 15:21
  • @LeighBettenay yes I want the computer to plot it at the midpoint, and maybe 14.25, 14.50... 16.25 supplementary contour lines too someday (with -i .25). Commented Feb 2 at 1:38
  • @bugmenot123 thanks but I don't want to use any GUIs (Qgis) and well, learned too much Perl so too late to use Python. Commented Feb 2 at 1:40