From 9c07198a3826dcb92efce6bc4e216e73684ce5fa Mon Sep 17 00:00:00 2001
From: Yuri Victorovich <yuri@FreeBSD.org>
Date: Mon, 18 Feb 2019 18:46:34 +0000
Subject: [PATCH] New port: math/py-grandalf: Graph experimentation and drawing
 algorithms framework

---
 math/Makefile              |  1 +
 math/py-grandalf/Makefile  | 23 +++++++++++++++++++++++
 math/py-grandalf/distinfo  |  3 +++
 math/py-grandalf/pkg-descr | 17 +++++++++++++++++
 4 files changed, 44 insertions(+)
 create mode 100644 math/py-grandalf/Makefile
 create mode 100644 math/py-grandalf/distinfo
 create mode 100644 math/py-grandalf/pkg-descr

diff --git a/math/Makefile b/math/Makefile
index 8045d9bc9ad9..815b23289681 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -717,6 +717,7 @@
     SUBDIR += py-gmpy
     SUBDIR += py-gmpy2
     SUBDIR += py-gnuplot
+    SUBDIR += py-grandalf
     SUBDIR += py-graphillion
     SUBDIR += py-igakit
     SUBDIR += py-igraph
diff --git a/math/py-grandalf/Makefile b/math/py-grandalf/Makefile
new file mode 100644
index 000000000000..bab230856812
--- /dev/null
+++ b/math/py-grandalf/Makefile
@@ -0,0 +1,23 @@
+# $FreeBSD$
+
+PORTNAME=	grandalf
+PORTVERSION=	0.6
+CATEGORIES=	math graphics python
+MASTER_SITES=	CHEESESHOP
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	yuri@FreeBSD.org
+COMMENT=	Graph experimentation and drawing algorithms framework
+
+LICENSE=	MIT
+
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest-runner>0:devel/py-pytest-runner@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}pyparsing>0:devel/py-pyparsing@${PY_FLAVOR}
+
+USES=		python
+USE_PYTHON=	distutils autoplist
+
+NO_ARCH=	yes
+
+.include <bsd.port.mk>
diff --git a/math/py-grandalf/distinfo b/math/py-grandalf/distinfo
new file mode 100644
index 000000000000..8034904e83c5
--- /dev/null
+++ b/math/py-grandalf/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1550515145
+SHA256 (grandalf-0.6.tar.gz) = 7471db231bd7338bc0035b16edf0dc0c900c82d23060f4b4d0c4304caedda6e4
+SIZE (grandalf-0.6.tar.gz) = 36699
diff --git a/math/py-grandalf/pkg-descr b/math/py-grandalf/pkg-descr
new file mode 100644
index 000000000000..0c0e04ac268c
--- /dev/null
+++ b/math/py-grandalf/pkg-descr
@@ -0,0 +1,17 @@
+Grandalf is a python package made for experimentations with graphs and drawing
+algorithms. It is written in pure python, and implements two layouts: the
+Sugiyama hierarchical layout and the force-driven or energy minimization
+approach. While not as fast or featured as _graphviz_ or other libraries like
+_OGDF_ (C++), _GDToolkit_ (C), _tulip_ (Java), it provides a way to draw and
+navigate graphs no larger than thousands of nodes, while keeping the source code
+simple enough to make it possible to easily tweak and hack any part of it for
+experimental purpose. With a total of about 1500 lines of python, the code
+involved in drawing the Sugiyama (dot) layout fits in less than 600 lines.
+The energy minimization approach is comprised of only 250 lines!
+
+Grandalf does only two not-so-simple things:
+* computing the nodes (x,y) coordinates (based on provided nodes dimensions, and
+  a chosen layout)
+* routing the edges with lines or nurbs
+
+WWW: https://github.com/bdcht/grandalf