From: johanengelen <johanengelen@users.sourceforge.net>
Date: Thu, 12 Jun 2008 20:35:18 +0000 (+0000)
Subject: add commentary to some methods about 2geom replacements
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=716597db4d45baa6811521dc292d3b5670641376;p=inkscape.git

add commentary to some methods about 2geom replacements
---

diff --git a/src/libnr/nr-matrix.cpp b/src/libnr/nr-matrix.cpp
index eb1f21d47..c7948a96e 100644
--- a/src/libnr/nr-matrix.cpp
+++ b/src/libnr/nr-matrix.cpp
@@ -219,7 +219,7 @@ bool Matrix::is_rotation(Coord const eps) const {
 
 
 /**
- *
+ *  test whether the matrix is the identity matrix (true).  (2geom's Matrix::isIdentity() does the same)
  */
 bool Matrix::test_identity() const {
     return matrix_equalp(*this, NR_MATRIX_IDENTITY, NR_EPSILON);
@@ -230,7 +230,7 @@ bool Matrix::test_identity() const {
 
 
 /**
- *
+ * calculates the descriminant of the matrix. (Geom::Coord Matrix::descrim() does the same)
  */
 double expansion(Matrix const &m) {
     return sqrt(fabs(m.det()));