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.TH "KML2GMT" "1gmt" "Sep 07, 2019" "6.0.0rc4" "GMT"
.SH NAME
kml2gmt \- Extract GMT table data from Google Earth KML files
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.SH SYNOPSIS
.sp
\fBgmt kml2gmt\fP [ \fIkmlfiles\fP ]
[  \fB\-E\fP ]
[  \fB\-F\fP\fBs\fP|\fBl\fP|\fBp\fP ]
[  \fB\-V\fP[\fIlevel\fP] ]
[  \fB\-Z\fP ]
[ \fB\-bo\fPbinary ]
[ \fB\-do\fPnodata ]
[ \fB\-:\fP[\fBi\fP|\fBo\fP] ]
[ \fB\-\-PAR\fP=\fIvalue\fP ]
.sp
\fBNote:\fP No space is allowed between the option flag and the associated arguments.
.SH DESCRIPTION
.sp
\fBkml2gmt\fP reads a Google Earth KML file and outputs a GMT table file.
Only KML files that contain points, lines, or polygons can be processed.
This is a bare\-bones operation that aims to extract coordinates and
possibly the name and description tags of each feature. The main use
intended is to capture coordinates modified in Google Earth and then
reinsert the modified data into the original GMT data file. For a more
complete reformatting, consider using \fBogr2ogr \-f\fP "GMT" somefile.gmt
somefile.kml.
.SH REQUIRED ARGUMENTS
.sp
None.
.SH OPTIONAL ARGUMENTS
.INDENT 0.0
.TP
.B \fIkmlfiles\fP
Name of one or more KML files to work on. If not are given, then
standard input is read.
.UNINDENT
.INDENT 0.0
.TP
\fB\-E\fP
Get the altitude from the \fIExtendData\fP property; \fIz\fP coordinates are then ignored. KML provides
more than one mechanism to store information via \fIExtendData\fP but here we only implemented the
\fI<SimpleData name="string">\fP variation. Implicitly sets \fB\-Z\fP
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.INDENT 0.0
.TP
\fB\-F\fP\fBs\fP|\fBl\fP|\fBp\fP
Specify a particular feature type to output. Choose from points (\fBs\fP),
\fBl\fPine, or \fBp\fPolygon.  By default we output all geometries.
.UNINDENT
.INDENT 0.0
.TP
\fB\-Z\fP
Output the altitude coordinates as GMT z coordinates [Default will
output just longitude and latitude].
.UNINDENT
.INDENT 0.0
.TP
\fB\-V\fP[\fIlevel\fP] (more ...)
Select verbosity level [c].  
.UNINDENT
.INDENT 0.0
.TP
\fB\-bo\fP[\fIncols\fP][\fItype\fP] (more ...)
Select native binary output.  
.UNINDENT
.INDENT 0.0
.TP
\fB\-do\fP\fInodata\fP (more ...)
Replace output columns that equal NaN with \fInodata\fP\&.  
.UNINDENT
.INDENT 0.0
.TP
\fB\-:\fP[\fBi\fP|\fBo\fP] (more ...)
Swap 1st and 2nd column on input and/or output.
.UNINDENT
.INDENT 0.0
.TP
\fB\-^\fP or just \fB\-\fP
Print a short message about the syntax of the command, then exits (NOTE: on Windows just use \fB\-\fP).
.TP
\fB\-+\fP or just \fB+\fP
Print an extensive usage (help) message, including the explanation of
any module\-specific option (but not the GMT common options), then exits.
.TP
\fB\-?\fP or no arguments
Print a complete usage (help) message, including the explanation of all options, then exits.
.TP
\fB\-\-PAR\fP=\fIvalue\fP
Temporarily override a GMT default setting; repeatable. See /gmt.conf for parameters.
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.SH NOTES
.sp
If polygons are digitized you can enter them in any order. If you have both perimeters
and holes we suggest you run the output through \fBgmt spatial \-Sh\fP which will
determine which polygons are perimeters and holes and organize them so that
any holes immediately will follow their perimeters and that their segment headers will
contain the \fB\-Ph\fP flag and have the reverse handedness.  This output may be
plotted by plot and the holes will be honored.
.SH EXAMPLES
.sp
To extract the lon,lat values from the KML file google.kml, try
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.sp
.nf
.ft C
gmt kml2gmt google.kml \-V > google.txt
.ft P
.fi
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.sp
To separate the point and polygon geometries from the KML file google.kml, try
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
gmt kml2gmt google.kml \-Fp \-V > polygons.txt

gmt kml2gmt google.kml \-Fs \-V > points.txt
.ft P
.fi
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.SH SEE ALSO
.sp
gmt, gmt.conf,
img2google,
psconvert, gmt2kml, gmtspatial
.SH COPYRIGHT
2019, The GMT Team
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