From 305aa1f9c570db60a92e49020f21e70311bbed36 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 2 Sep 2014 10:47:40 +0200
Subject: Add examples for hnormalized and homogenous (fix bug #846)

---
 doc/snippets/DirectionWise_hnormalized.cpp | 7 +++++++
 doc/snippets/MatrixBase_hnormalized.cpp    | 6 ++++++
 doc/snippets/MatrixBase_homogeneous.cpp    | 6 ++++++
 doc/snippets/VectorwiseOp_homogeneous.cpp  | 7 +++++++
 4 files changed, 26 insertions(+)
 create mode 100644 doc/snippets/DirectionWise_hnormalized.cpp
 create mode 100644 doc/snippets/MatrixBase_hnormalized.cpp
 create mode 100644 doc/snippets/MatrixBase_homogeneous.cpp
 create mode 100644 doc/snippets/VectorwiseOp_homogeneous.cpp

(limited to 'doc/snippets')

diff --git a/doc/snippets/DirectionWise_hnormalized.cpp b/doc/snippets/DirectionWise_hnormalized.cpp
new file mode 100644
index 000000000..3410790a8
--- /dev/null
+++ b/doc/snippets/DirectionWise_hnormalized.cpp
@@ -0,0 +1,7 @@
+typedef Matrix<double,4,Dynamic> Matrix4Xd;
+Matrix4Xd M = Matrix4Xd::Random(4,5);
+Projective3d P(Matrix4d::Random());
+cout << "The matrix M is:" << endl << M << endl << endl;
+cout << "M.colwise().hnormalized():" << endl << M.colwise().hnormalized() << endl << endl;
+cout << "P*M:" << endl << P*M << endl << endl;
+cout << "(P*M).colwise().hnormalized():" << endl << (P*M).colwise().hnormalized() << endl << endl;
\ No newline at end of file
diff --git a/doc/snippets/MatrixBase_hnormalized.cpp b/doc/snippets/MatrixBase_hnormalized.cpp
new file mode 100644
index 000000000..652cd77c0
--- /dev/null
+++ b/doc/snippets/MatrixBase_hnormalized.cpp
@@ -0,0 +1,6 @@
+Vector4d v = Vector4d::Random();
+Projective3d P(Matrix4d::Random());
+cout << "v                   = " << v.transpose() << "]^T" << endl;
+cout << "v.hnormalized()     = " << v.hnormalized().transpose() << "]^T" << endl;
+cout << "P*v                 = " << (P*v).transpose() << "]^T" << endl;
+cout << "(P*v).hnormalized() = " << (P*v).hnormalized().transpose() << "]^T" << endl;
\ No newline at end of file
diff --git a/doc/snippets/MatrixBase_homogeneous.cpp b/doc/snippets/MatrixBase_homogeneous.cpp
new file mode 100644
index 000000000..457c28f91
--- /dev/null
+++ b/doc/snippets/MatrixBase_homogeneous.cpp
@@ -0,0 +1,6 @@
+Vector3d v = Vector3d::Random(), w;
+Projective3d P(Matrix4d::Random());
+cout << "v                                   = [" << v.transpose() << "]^T" << endl;
+cout << "h.homogeneous()                     = [" << v.homogeneous().transpose() << "]^T" << endl;
+cout << "(P * v.homogeneous())               = [" << (P * v.homogeneous()).transpose() << "]^T" << endl;
+cout << "(P * v.homogeneous()).hnormalized() = [" << (P * v.homogeneous()).eval().hnormalized().transpose() << "]^T" << endl;
\ No newline at end of file
diff --git a/doc/snippets/VectorwiseOp_homogeneous.cpp b/doc/snippets/VectorwiseOp_homogeneous.cpp
new file mode 100644
index 000000000..aba4fed0e
--- /dev/null
+++ b/doc/snippets/VectorwiseOp_homogeneous.cpp
@@ -0,0 +1,7 @@
+typedef Matrix<double,3,Dynamic> Matrix3Xd;
+Matrix3Xd M = Matrix3Xd::Random(3,5);
+Projective3d P(Matrix4d::Random());
+cout << "The matrix M is:" << endl << M << endl << endl;
+cout << "M.colwise().homogeneous():" << endl << M.colwise().homogeneous() << endl << endl;
+cout << "P * M.colwise().homogeneous():" << endl << P * M.colwise().homogeneous() << endl << endl;
+cout << "P * M.colwise().homogeneous().hnormalized(): " << endl << (P * M.colwise().homogeneous()).colwise().hnormalized() << endl << endl;
\ No newline at end of file
-- 
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