I am new at using GMT (Generic Mapping Tools) and I am wondering if it can use a shapefile of a hydrographical network.
Can I perhaps change my .shp to .gmt format and combine it with a GMT map? If so, how?
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possible duplicate of GMT grid to ESRI readable format– FezterCommented Jul 16, 2014 at 0:59
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I think this is the exact opposite– Fotini_MCommented Jul 16, 2014 at 1:13
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1Can you edit your question to explain the GMT abbreviation, please?– PolyGeo ♦Commented Jul 16, 2014 at 3:29
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I agree with PolyGeo. Also network shapefile? You mean a group of shape files to load into something? I have never heard of a network shapefile in esri.– Brad NesomCommented Jul 16, 2014 at 3:40
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2@BradNesom I think "hydrographical network shapefile" will be a line shapefile of a hydrographic network. GMT could be en.wikipedia.org/wiki/Generic_Mapping_Tools. In any event I think this question should be focussed on the conversion and the extra parts researched/asked separately.– PolyGeo ♦Commented Jul 16, 2014 at 4:03
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3 Answers
Convert from shape to gmt use this
example code :
ogr2ogr -f "GMT" Hudson_bounds.gmt Hudson_bounds.shp
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how can i use this? at my command prompt? please can you help me i can understand it– Fotini_MCommented Jul 17, 2014 at 0:06
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Type it from youre command prompt window, link was provided by Luke. Commented Jul 17, 2014 at 7:07
In GDAL 2.2.1 the call is:
ogr2ogr -f "OGR_GMT" Hudson_bounds.gmt Hudson_bounds.shp
Shapefiles can be converted to xy segment files using QGIS. Just right click on the shapefile in QGIS and then Save As -> Format "Generic Mapping Tools [GMT]". Use WGS84 as the CRS, give a file name and click OK.
This is highly userfriendly when dealing with multi segment shapefiles.
