[gdal-dev] GNM Usage

[Mikhail Gusev]

No, it will not break the line into segments. All point features that are
geometrically on the line feature except endings will be ignored.
For Y intersection the connections will be created only for 3 lines with
the common end point.

2015-03-11 14:28 GMT+04:00 ChiefDan <ChiefDan at gmail.com>:

> Thanks for the response. The source data is in EPSG 900913, the network
> data
> according to ogrinfo:
> PROJCS["WGS_84_Pseudo_Mercator",
>     GEOGCS["GCS_WGS_1984",
>         DATUM["WGS_1984",
>             SPHEROID["WGS_84",6378137,298.257223563]],
>         PRIMEM["Greenwich",0],
>         UNIT["Degree",0.017453292519943295]],
>     PROJECTION["Mercator_1SP"],
>     PARAMETER["central_meridian",0],
>     PARAMETER["false_easting",0],
>     PARAMETER["false_northing",0],
>     UNIT["Meter",1],
>     PARAMETER["latitude_of_origin",0.0]]
>
> Looking at the individual point values, they seem to be EPSG 4326:
> OGRFeature(gnm_Frog_Branches_point):1
>   name (String) = 78B-S-0
>   gfid (Integer) = 68
>   POINT (12.305749698885625 45.450093091932679)
>
> For a line with multiple point objects on it, will the GNM processing break
> the line up into multiple segments creating the line segments between the
> points?
> Also, if there are overlapping lines that form a Y intersection, can the
> GNM
> processing recognize that as a potential path?
>
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/GNM-Usage-tp5192401p5192757.html
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
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