diff --git a/sci-geosciences/dcw-gmt/dcw-gmt-1.1.4.ebuild b/sci-geosciences/dcw-gmt/dcw-gmt-1.1.4.ebuild
new file mode 100644
index 0000000..b1db095
--- /dev/null
+++ b/sci-geosciences/dcw-gmt/dcw-gmt-1.1.4.ebuild
@@ -0,0 +1,22 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+DESCRIPTION="The Digital Chart of the World for GMT 5 or later"
+HOMEPAGE="https://www.soest.hawaii.edu/wessel/dcw/"
+SRC_URI="https://www.soest.hawaii.edu/pwessel/dcw/${P}.tar.gz"
+
+LICENSE="LGPL-3+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE=""
+
+RDEPEND=""
+DEPEND="${RDEPEND}"
+
+src_install() {
+ dodoc README.TXT ChangeLog
+ insinto /usr/share/dcw-gmt
+ doins *.nc dcw-{countries,states}.txt
+}
diff --git a/sci-geosciences/dcw-gmt/metadata.xml b/sci-geosciences/dcw-gmt/metadata.xml
new file mode 100644
index 0000000..04b7581
--- /dev/null
+++ b/sci-geosciences/dcw-gmt/metadata.xml
@@ -0,0 +1,18 @@
+
+
+
+
+ uleysky@gmail.com
+ Michael Uleysky
+
+
+ The Digital Chart of the World (DCW) is a comprehensive 1:1,000,000
+ scale vector basemap of the world. The charts were designed to meet
+ the needs of pilots and air crews in medium-and low-altitude
+ en route navigation and to support military operational planning,
+ intelligence briefings, and other needs. DCW-GMT is an enhancement
+ to DCW in a few ways: (1) it contains more state boundaries,
+ and (2) the data have been reformatted to save space and are
+ distributed as a single deflated netCDF-4 file.
+
+
diff --git a/sci-geosciences/gmt/files/gmt-4.5.6-respect-ldflags.patch b/sci-geosciences/gmt/files/gmt-4.5.6-respect-ldflags.patch
new file mode 100644
index 0000000..0749438
--- /dev/null
+++ b/sci-geosciences/gmt/files/gmt-4.5.6-respect-ldflags.patch
@@ -0,0 +1,56 @@
+diff -urN GMT4.5.6/src/Makefile GMT4.5.6.new/src/Makefile
+--- GMT4.5.6/src/Makefile 2011-03-03 22:02:50.000000000 +0100
++++ GMT4.5.6.new/src/Makefile 2011-06-07 14:48:00.969500019 +0200
+@@ -195,13 +195,13 @@
+ $(RANLIB) $@
+
+ libpsl.$(SL): libpsl.a
+- $(LD) $(LD_OPT) pslib.o $(LIBS) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) pslib.o $(LIBS) -o $@
+
+ libgmt.$(SL): libgmt.a
+- $(LD) $(LD_OPT) $(LIB_O) $(TRIANGLE_O) $(ALPHA_SINCOS_O) $(NETCDF_LIB) $(GDAL_LIB) $(LIBS) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) $(LIB_O) $(TRIANGLE_O) $(ALPHA_SINCOS_O) $(NETCDF_LIB) $(GDAL_LIB) $(LIBS) -o $@
+
+ libgmtps.$(SL): libgmtps.a libgmt.$(SL) libpsl.$(SL)
+- $(LD) $(LD_OPT) $(LIBPS_O) libgmt.$(SL) libpsl.$(SL) $(LIBS) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) $(LIBPS_O) libgmt.$(SL) libpsl.$(SL) $(LIBS) -o $@
+
+ #-------------------------------------------------------------------------------
+ # program rules
+diff -urN GMT4.5.6/src/mgd77/Makefile GMT4.5.6.new/src/mgd77/Makefile
+--- GMT4.5.6/src/mgd77/Makefile 2010-11-01 23:39:16.000000000 +0100
++++ GMT4.5.6.new/src/mgd77/Makefile 2011-06-07 14:53:46.394181616 +0200
+@@ -93,7 +93,7 @@
+ $(RANLIB) $@
+
+ libmgd77.$(SL): libmgd77.a
+- $(LD) $(LD_OPT) $(LIB_O) $(GMT_LIB) $(NETCDF_LIB) $(LIBS) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) $(LIB_O) $(GMT_LIB) $(NETCDF_LIB) $(LIBS) -o $@
+
+ #-------------------------------------------------------------------------------
+ # program rules
+diff -urN GMT4.5.6/src/mgg/Makefile GMT4.5.6.new/src/mgg/Makefile
+--- GMT4.5.6/src/mgg/Makefile 2010-11-01 23:39:16.000000000 +0100
++++ GMT4.5.6.new/src/mgg/Makefile 2011-06-07 14:54:48.096410233 +0200
+@@ -95,7 +95,7 @@
+ $(RANLIB) $@
+
+ libgmt_mgg.$(SL): libgmt_mgg.a
+- $(LD) $(LD_OPT) $(LIB_O) $(GMT_LIB) $(NETCDF_LIB) $(LIBS) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) $(LIB_O) $(GMT_LIB) $(NETCDF_LIB) $(LIBS) -o $@
+
+ #-------------------------------------------------------------------------------
+ # program rules
+diff -urN GMT4.5.6/src/x2sys/Makefile GMT4.5.6.new/src/x2sys/Makefile
+--- GMT4.5.6/src/x2sys/Makefile 2010-11-01 23:39:16.000000000 +0100
++++ GMT4.5.6.new/src/x2sys/Makefile 2011-06-07 14:54:15.124822433 +0200
+@@ -83,7 +83,7 @@
+ $(RANLIB) $@
+
+ libx2sys.$(SL): libx2sys.a
+- $(LD) $(LD_OPT) x2sys.o $(ALLLIB) -o $@
++ $(LD) $(LD_OPT) $(LDFLAGS) x2sys.o $(ALLLIB) -o $@
+
+ #-------------------------------------------------------------------------------
+ # program rules
diff --git a/sci-geosciences/gmt/files/gmt-4.5.9-no-strip.patch b/sci-geosciences/gmt/files/gmt-4.5.9-no-strip.patch
new file mode 100644
index 0000000..f57f1d8
--- /dev/null
+++ b/sci-geosciences/gmt/files/gmt-4.5.9-no-strip.patch
@@ -0,0 +1,38 @@
+Drop manipulation of several flags:
+
+* stripping of -g from CFLAGS, as it interferes with deliberate
+ generation of debug symbols and breaks on flags like -ggdb.
+* Addition of -s resp. -Wl,-x to LDFLAGS, as stipping of binaries is
+ done as a separate step on Gentoo (and many other distros) in order
+ to faciliate retention or splitting of debug symbols.
+* Setting of optimization flags, as the user should be free to choose
+ them.
+
+2009-07-27 Martin von Gagern
+
+Reference: http://bugs.gentoo.org/279268
+
+Index: GMT4.5.0/configure.ac
+===================================================================
+--- GMT4.5.0.orig/configure.ac
++++ GMT4.5.0/configure.ac
+@@ -527,19 +527,6 @@ if test "X$enable_debug" = "Xyes" ; then
+ AC_MSG_RESULT(yes)
+ CFLAGS="$CFLAGS -g"
+ else
+- CFLAGS=`echo $CFLAGS | sed 's/-g//'`
+- if test "$os" = "Darwin" ; then
+- LDFLAGS="$LDFLAGS -Wl,-x"
+- else
+- LDFLAGS="$LDFLAGS -s"
+- fi
+- if test "$GCC" = "yes" || test "$os" = "Linux" || test "$os" = "AIX"; then
+- CFLAGS="$CFLAGS -O2"
+- elif test "$chip" = "alpha" || test "$os" = "AUX" || test "$os" = "HP-UX"; then
+- CFLAGS="$CFLAGS"
+- else
+- CFLAGS="$CFLAGS -O"
+- fi
+ AC_MSG_RESULT(no)
+ fi
+ dnl -----------------------------------------------------------------
diff --git a/sci-geosciences/gmt/gmt-4.5.18-r1.ebuild b/sci-geosciences/gmt/gmt-4.5.18-r1.ebuild
new file mode 100644
index 0000000..086f864
--- /dev/null
+++ b/sci-geosciences/gmt/gmt-4.5.18-r1.ebuild
@@ -0,0 +1,89 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit autotools
+
+DESCRIPTION="Powerful map generator"
+HOMEPAGE="https://gmt.soest.hawaii.edu/"
+SRC_URI="
+ mirror://gmt/${P}-src.tar.bz2
+ gmttria? ( mirror://gmt/${P}-non-gpl-src.tar.bz2 )"
+
+LICENSE="GPL-2+ gmttria? ( Artistic )"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="doc examples debug +gdal gmttria +gshhg htmldoc +metric mex +netcdf octave postscript tutorial"
+
+RDEPEND="
+ !sci-biology/probcons
+ gdal? ( sci-libs/gdal )
+ gshhg? ( sci-geosciences/gshhg-gmt )
+ netcdf? ( >=sci-libs/netcdf-4.1 )
+ octave? ( sci-mathematics/octave )"
+DEPEND="${RDEPEND}"
+
+# mex can use matlab too which i can't test
+REQUIRED_USE="
+ mex? ( octave )
+"
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-4.5.9-no-strip.patch
+ "${FILESDIR}"/${PN}-4.5.6-respect-ldflags.patch
+ )
+
+src_configure() {
+ local myconf=(
+ --datadir=/usr/share/${P}
+ --includedir=/usr/include/${P}
+ --disable-update
+ --disable-matlab
+ --disable-xgrid
+ --disable-debug
+ $(use_enable gdal)
+ $(use_enable netcdf)
+ $(use_enable octave)
+ $(use_enable debug devdebug)
+ $(use_enable !metric US)
+ $(use_enable postscript eps)
+ $(use_enable mex)
+ $(use_enable gmttria triangle)
+ $(use_with gshhg gshhg-dir /usr/share/gshhg)
+ )
+ econf "${myconf[@]}"
+}
+
+src_compile() {
+ emake -j1
+}
+
+src_install() {
+ emake DESTDIR="${D}" -j1 install-all
+ einstalldocs
+
+ # Remove various documentation
+ if ! use doc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/pdf" || die
+ fi
+
+ if use examples; then
+ docompress -x /usr/share/doc/${PF}/examples
+ else
+ rm -rf "${ED}/usr/share/doc/${PF}/examples" || die
+ fi
+
+ if ! use htmldoc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/html" || die
+ fi
+
+ if use tutorial; then
+ docompress -x /usr/share/doc/${PF}/tutorial
+ else
+ rm -rf "${ED}/usr/share/doc/${PF}/tutorial" || die
+ fi
+
+ # remove static libs
+ find "${ED}/usr/$(get_libdir)" -name '*.a' -delete || die
+}
diff --git a/sci-geosciences/gmt/gmt-5.4.4.ebuild b/sci-geosciences/gmt/gmt-5.4.4.ebuild
new file mode 100644
index 0000000..310cf05
--- /dev/null
+++ b/sci-geosciences/gmt/gmt-5.4.4.ebuild
@@ -0,0 +1,125 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit bash-completion-r1 cmake-utils
+
+DESCRIPTION="Powerful map generator"
+HOMEPAGE="https://gmt.soest.hawaii.edu/"
+SRC_URI="mirror://gmt/${P}-src.tar.xz"
+
+LICENSE="GPL-3+ gmttria? ( Artistic )"
+SLOT="5"
+KEYWORDS="~amd64 ~x86"
+IUSE="+dcw doc examples +fftw +gdal gmttria +gshhg htmldoc lapack multislot openmp pcre pcre2 threads tutorial"
+
+RDEPEND="
+ !sci-biology/probcons
+ app-text/ghostscript-gpl
+ dcw? ( sci-geosciences/dcw-gmt )
+ fftw? ( sci-libs/fftw:3.0/3 )
+ gdal? ( sci-libs/gdal )
+ gshhg? ( sci-geosciences/gshhg-gmt )
+ >=sci-libs/netcdf-4.1[hdf5]
+ lapack? ( virtual/lapack )
+ !multislot? ( !sci-geosciences/gmt:0 )
+ pcre? ( dev-libs/libpcre )
+ pcre2? ( dev-libs/libpcre2 )
+ net-misc/curl
+ sys-libs/zlib"
+
+DEPEND="${RDEPEND}"
+
+REQUIRED_USE="?? ( pcre pcre2 )"
+
+src_prepare() {
+ cmake-utils_src_prepare
+ # Rename man pages to avoid a name conflict with gmt4
+ if use multislot; then
+ pushd man_release || die
+ local m c suffix newc
+ for m in *.gz; do
+ c=${m%%.*}
+ suffix=${m#*.}
+ newc=gmt_${c}
+ # This man pages does'nt conflict
+ case "${c}" in
+ "gmt" | "gmt.conf" | "postscriptlight")
+ continue ;;
+ "gmt_shell_functions")
+ newc=gmt5_shell_functions ;;
+ "gmtcolors")
+ newc=gmt5colors ;;
+ esac
+ mv "${c}.${suffix}" "${newc}.${suffix}" || die
+ done
+ popd || die
+ fi
+}
+
+src_configure() {
+ local mycmakeargs=(
+ -DLICENSE_RESTRICTED="$(usex gmttria no yes)"
+ -DGMT_OPENMP="$(usex openmp)"
+ -DGMT_USE_THREADS="$(usex threads)"
+ -DGMT_INSTALL_TRADITIONAL_FOLDERNAMES=OFF # Install bash completions properly
+ -DGMT_INSTALL_MODULE_LINKS=OFF # Don't install symlinks on gmt binary, they are conflicted with gmt4
+ -DBASH_COMPLETION_DIR="$(get_bashcompdir)"
+ -DGMT_DATADIR="share/${P}"
+ -DGMT_DOCDIR="share/doc/${PF}"
+ -DGMT_MANDIR="share/man"
+ )
+ use fftw || mycmakeargs+=( -DGMT_EXCLUDE_FFTW3=yes )
+ use gdal || mycmakeargs+=( -DGMT_EXCLUDE_GDAL=yes )
+ use lapack || mycmakeargs+=( -DGMT_EXCLUDE_LAPACK=yes )
+ use pcre || mycmakeargs+=( -DGMT_EXCLUDE_PCRE=yes )
+ use pcre2 || mycmakeargs+=( -DGMT_EXCLUDE_PCRE2=yes )
+ cmake-utils_src_configure
+}
+
+src_install() {
+ cmake-utils_src_install
+ # Remove various documentation
+ if ! use doc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/pdf" || die
+ fi
+
+ if use examples; then
+ docompress -x /usr/share/doc/${PF}/examples
+ else
+ rm -rf "${ED}/usr/share/doc/${PF}/examples" || die
+ fi
+
+ if ! use htmldoc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/html" || die
+ fi
+
+ if use tutorial; then
+ docompress -x /usr/share/doc/${PF}/tutorial
+ else
+ rm -rf "${ED}/usr/share/doc/${PF}/tutorial" || die
+ fi
+
+ # Decompress manuals
+ pushd "${ED}/usr/share/man" || die
+ local d f
+ for d in man*; do
+ pushd $d || die
+ for f in *.gz; do
+ gunzip $f || die
+ done
+ popd || die
+ done
+ popd || die
+
+ if use multislot; then
+ # Rename some files to avoid a name conflict with gmt4
+ mv "${ED}/usr/bin/gmt_shell_functions.sh" "${ED}/usr/bin/gmt5_shell_functions.sh" || die
+ mv "${ED}/usr/bin/isogmt" "${ED}/usr/bin/isogmt5" || die
+ fi
+
+ rm "${ED}/usr/bin/gmtswitch" || die
+ # Rename bash completion file
+ mv "$ED/$(get_bashcompdir)/gmt_completion.bash" "$ED/$(get_bashcompdir)/gmt" || die
+}
diff --git a/sci-geosciences/gmt/gmt-9999.ebuild b/sci-geosciences/gmt/gmt-9999.ebuild
new file mode 100644
index 0000000..5ed3e5f
--- /dev/null
+++ b/sci-geosciences/gmt/gmt-9999.ebuild
@@ -0,0 +1,138 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit bash-completion-r1 cmake-utils git-r3
+
+DESCRIPTION="Powerful map generator"
+HOMEPAGE="https://gmt.soest.hawaii.edu/"
+EGIT_REPO_URI="https://github.com/GenericMappingTools/gmt.git"
+SRC_URI=""
+
+LICENSE="GPL-2 gmttria? ( Artistic )"
+SLOT="5"
+IUSE="+dcw doc examples +fftw +gdal gmttria +gshhg htmldoc lapack multislot openmp pcre pcre2 threads"
+
+RDEPEND="
+ !sci-biology/probcons
+ app-text/ghostscript-gpl
+ dcw? ( sci-geosciences/dcw-gmt )
+ doc? ( dev-python/sphinx )
+ doc? ( dev-tex/latexmk )
+ fftw? ( sci-libs/fftw:3.0/3 )
+ gdal? ( sci-libs/gdal )
+ gshhg? ( sci-geosciences/gshhg-gmt )
+ htmldoc? ( dev-python/sphinx )
+ >=sci-libs/netcdf-4.1[hdf5]
+ lapack? ( virtual/lapack )
+ !multislot? ( !sci-geosciences/gmt:0 )
+ pcre? ( dev-libs/libpcre )
+ pcre2? ( dev-libs/libpcre2 )
+ net-misc/curl
+ sys-libs/zlib"
+
+DEPEND="${RDEPEND}"
+
+REQUIRED_USE="?? ( pcre pcre2 )"
+
+src_configure() {
+ local mycmakeargs=(
+ -DLICENSE_RESTRICTED="$(usex gmttria no yes)"
+ -DGMT_OPENMP="$(usex openmp)"
+ -DGMT_USE_THREADS="$(usex threads)"
+ -DGMT_INSTALL_TRADITIONAL_FOLDERNAMES=OFF # Install bash completions properly
+ -DGMT_INSTALL_MODULE_LINKS=OFF # Don't install symlinks on gmt binary, they are conflicted with gmt4
+ -DBASH_COMPLETION_DIR="$(get_bashcompdir)"
+ -DGMT_DATADIR="share/${P}"
+ -DGMT_DOCDIR="share/doc/${PF}"
+ -DGMT_MANDIR="share/man"
+ )
+ use fftw || mycmakeargs+=( -DGMT_EXCLUDE_FFTW3=yes )
+ use gdal || mycmakeargs+=( -DGMT_EXCLUDE_GDAL=yes )
+ use lapack || mycmakeargs+=( -DGMT_EXCLUDE_LAPACK=yes )
+ use pcre || mycmakeargs+=( -DGMT_EXCLUDE_PCRE=yes )
+ use pcre2 || mycmakeargs+=( -DGMT_EXCLUDE_PCRE2=yes )
+ cmake-utils_src_configure
+}
+
+src_compile() {
+ cmake-utils_src_compile
+ pushd "${BUILD_DIR}" || die
+ local havedoc="n"
+ if use doc; then
+ make -j1 docs_pdf || die
+ havedoc="y"
+ fi
+ if use htmldoc; then
+ make -j1 docs_html || die
+ havedoc="y"
+ fi
+ if [ "$havedoc" == "y" ]; then
+ make -j1 docs_man || die
+ if use multislot; then
+ # Rename man pages to avoid a name conflict with gmt4
+ pushd doc_modern/rst/man || die
+ local m c suffix newc
+ for m in *.gz; do
+ c=${m%%.*}
+ suffix=${m#*.}
+ newc=gmt_${c}
+ # This man pages does'nt conflict
+ case "${c}" in
+ "gmt" | "gmt.conf" | "postscriptlight")
+ continue ;;
+ "gmt_shell_functions")
+ newc=gmt5_shell_functions ;;
+ "gmtcolors")
+ newc=gmt5colors ;;
+ esac
+ mv "${c}.${suffix}" "${newc}.${suffix}" || die
+ done
+ popd || die
+ fi
+ fi
+ popd || die
+}
+
+src_install() {
+ cmake-utils_src_install
+ # Remove various documentation
+ if ! use doc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/pdf" || die
+ fi
+
+ if use examples; then
+ docompress -x /usr/share/doc/${PF}/examples
+ else
+ rm -rf "${ED}/usr/share/doc/${PF}/examples" || die
+ fi
+
+ if ! use htmldoc; then
+ rm -rf "${ED}/usr/share/doc/${PF}/html" || die
+ fi
+
+ # Decompress manuals
+ if use doc || use htmldoc; then
+ pushd "${ED}/usr/share/man" || die
+ local d f
+ for d in man*; do
+ pushd $d || die
+ for f in *.gz; do
+ gunzip $f || die
+ done
+ popd || die
+ done
+ popd || die
+ fi
+
+ if use multislot; then
+ # Rename some files to avoid a name conflict with gmt4
+ mv "${ED}/usr/bin/gmt_shell_functions.sh" "${ED}/usr/bin/gmt5_shell_functions.sh" || die
+ mv "${ED}/usr/bin/isogmt" "${ED}/usr/bin/isogmt5" || die
+ fi
+
+ rm "${ED}/usr/bin/gmtswitch" || die
+ # Rename bash completion file
+ mv "$ED/$(get_bashcompdir)/gmt_completion.bash" "$ED/$(get_bashcompdir)/gmt" || die
+}
diff --git a/sci-geosciences/gmt/metadata.xml b/sci-geosciences/gmt/metadata.xml
new file mode 100644
index 0000000..356bbc8
--- /dev/null
+++ b/sci-geosciences/gmt/metadata.xml
@@ -0,0 +1,23 @@
+
+
+
+
+ >uleysky@gmail.com
+ Michael Uleysky
+
+
+
diff --git a/sci-geosciences/gshhg-gmt/gshhg-gmt-2.3.7.ebuild b/sci-geosciences/gshhg-gmt/gshhg-gmt-2.3.7.ebuild
new file mode 100644
index 0000000..fa8f56a
--- /dev/null
+++ b/sci-geosciences/gshhg-gmt/gshhg-gmt-2.3.7.ebuild
@@ -0,0 +1,22 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+DESCRIPTION="A Global Self-consistent, Hierarchical, High-resolution Geography Database"
+HOMEPAGE="https://www.soest.hawaii.edu/pwessel/gshhg/"
+SRC_URI="https://www.soest.hawaii.edu/pwessel/gshhg/${P}.tar.gz"
+
+LICENSE="LGPL-3+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE=""
+
+RDEPEND=""
+DEPEND="${RDEPEND}"
+
+src_install() {
+ dodoc README.TXT
+ insinto /usr/share/gshhg
+ doins *.nc
+}
diff --git a/sci-geosciences/gshhg-gmt/metadata.xml b/sci-geosciences/gshhg-gmt/metadata.xml
new file mode 100644
index 0000000..f248c65
--- /dev/null
+++ b/sci-geosciences/gshhg-gmt/metadata.xml
@@ -0,0 +1,17 @@
+
+
+
+
+ >uleysky@gmail.com
+ Michael Uleysky
+
+
+ GSHHS is a high-resolution shoreline data set amalgamated from two
+ databases in the public domain. The data have undergone extensive
+ processing and are free of internal inconsistencies such as erratic
+ points and crossing segments. The shorelines are constructed
+ entirely from hierarchically arranged closed polygons. The data can
+ be used to simplify data searches and data selections, or to study
+ the statistical characteristics of shorelines and land-masses.
+
+