From 187f3eeee18a5aba1da2c2cb49a0ad09f2f59c0e Mon Sep 17 00:00:00 2001
From: David Hirvonen <dhirvonen@elucideye.com>
Date: Sat, 27 Jan 2018 18:51:00 -0500
Subject: [PATCH] add mini cvsteer package

A concise implementation of separable steerable filters via Freeman and Adelson, including second derivative of Gaussian and its Hilbert transform, implemented with the OpenCV C++ API
---
 cmake/configs/default.cmake         |  1 +
 cmake/projects/cvsteer/hunter.cmake | 26 ++++++++++++++++++++++++++
 docs/packages/pkg/cvsteer.rst       | 18 ++++++++++++++++++
 examples/cvsteer/CMakeLists.txt     | 17 +++++++++++++++++
 examples/cvsteer/foo.cpp            |  6 ++++++
 5 files changed, 68 insertions(+)
 create mode 100644 cmake/projects/cvsteer/hunter.cmake
 create mode 100644 docs/packages/pkg/cvsteer.rst
 create mode 100644 examples/cvsteer/CMakeLists.txt
 create mode 100644 examples/cvsteer/foo.cpp

diff --git a/cmake/configs/default.cmake b/cmake/configs/default.cmake
index 3897af958f..9532a6d407 100644
--- a/cmake/configs/default.cmake
+++ b/cmake/configs/default.cmake
@@ -170,6 +170,7 @@ hunter_config(crashup VERSION 0.0.2)
 hunter_config(cryptopp VERSION 5.6.5-p0)
 hunter_config(cub VERSION 1.7.4-p0)
 hunter_config(cvmatio VERSION 1.0.28)
+hunter_config(cvsteer VERSION 0.1.1)
 hunter_config(cxxopts VERSION 1.0.0-p0)
 hunter_config(czmq VERSION 4.0.2-p1)
 hunter_config(damageproto VERSION 1.2.1)
diff --git a/cmake/projects/cvsteer/hunter.cmake b/cmake/projects/cvsteer/hunter.cmake
new file mode 100644
index 0000000000..f10009d563
--- /dev/null
+++ b/cmake/projects/cvsteer/hunter.cmake
@@ -0,0 +1,26 @@
+# Copyright (c) 2016-2018, Ruslan Baratov
+# Copyright (c) 2018, David Hirvonen
+# All rights reserved.
+
+# !!! DO NOT PLACE HEADER GUARDS HERE !!!
+
+include(hunter_add_version)
+include(hunter_cacheable)
+include(hunter_cmake_args)
+include(hunter_download)
+include(hunter_pick_scheme)
+
+hunter_add_version(
+    PACKAGE_NAME
+    cvsteer
+    VERSION
+    0.1.1
+    URL
+    "https://github.com/headupinclouds/cvsteer/archive/v0.1.1.tar.gz"
+    SHA1
+    b54b096910c0947e1af125e134b2511b25dc847d
+    )
+  
+hunter_pick_scheme(DEFAULT url_sha1_cmake)
+hunter_cacheable(cvsteer)
+hunter_download(PACKAGE_NAME cvsteer)
diff --git a/docs/packages/pkg/cvsteer.rst b/docs/packages/pkg/cvsteer.rst
new file mode 100644
index 0000000000..71c7eaa117
--- /dev/null
+++ b/docs/packages/pkg/cvsteer.rst
@@ -0,0 +1,18 @@
+.. spelling::
+
+    cvsteer
+
+.. index:: computer-vision ; cvsteer
+
+.. _pkg.cvsteer:
+
+cvsteer
+=======
+
+-  `Official <http://github.com/headupinclouds/cvsteer>`__
+-  `Example <https://github.com/ruslo/hunter/blob/master/examples/cvsteer/CMakeLists.txt>`__
+
+.. literalinclude:: /../examples/cvsteer/CMakeLists.txt
+  :language: cmake
+  :start-after: # DOCUMENTATION_START {
+  :end-before: # DOCUMENTATION_END }
diff --git a/examples/cvsteer/CMakeLists.txt b/examples/cvsteer/CMakeLists.txt
new file mode 100644
index 0000000000..8b518ba128
--- /dev/null
+++ b/examples/cvsteer/CMakeLists.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2016-2018, Ruslan Baratov
+# Copyright (c) 2018, David Hirvonen
+# All rights reserved.
+
+cmake_minimum_required(VERSION 3.0)
+
+# Emulate HunterGate:
+# * https://github.com/hunter-packages/gate
+include("../common.cmake")
+
+project(download-cvsteer)
+
+hunter_add_package(cvsteer)
+find_package(cvsteer CONFIG REQUIRED)
+
+add_executable(foo foo.cpp)
+target_link_libraries(foo cvsteer::cvsteer)
diff --git a/examples/cvsteer/foo.cpp b/examples/cvsteer/foo.cpp
new file mode 100644
index 0000000000..ca34cb6680
--- /dev/null
+++ b/examples/cvsteer/foo.cpp
@@ -0,0 +1,6 @@
+#include <cvsteer/SteerableFiltersG2.h>
+
+int main() {
+    cv::Mat1f image = cv::Mat1f::zeros(128, 128);
+    fa::SteerableFiltersG2 filters(image, 4, 0.67f);
+}