1 files changed, 37 insertions, 0 deletions
diff --git a/src/libnr/nr-matrix-scale-ops.cpp b/src/libnr/nr-matrix-scale-ops.cpp
new file mode 100644
index 000000000..90cbaf585
--- /dev/null
+++ b/src/libnr/nr-matrix-scale-ops.cpp
@@ -0,0 +1,37 @@
+#include "libnr/nr-matrix-ops.h"
+
+NR::Matrix
+operator/(NR::Matrix const &m, NR::scale const &s)
+{
+    using NR::X; using NR::Y;
+    NR::Matrix ret(m);
+    ret[0] /= s[X]; ret[1] /= s[Y];
+    ret[2] /= s[X]; ret[3] /= s[Y];
+    ret[4] /= s[X]; ret[5] /= s[Y];
+    assert_close( ret, m * NR::Matrix(s.inverse()) );
+    return ret;
+}
+
+NR::Matrix
+operator*(NR::Matrix const &m, NR::scale const &s)
+{
+    using NR::X; using NR::Y;
+    NR::Matrix ret(m);
+    ret[0] *= s[X]; ret[1] *= s[Y];
+    ret[2] *= s[X]; ret[3] *= s[Y];
+    ret[4] *= s[X]; ret[5] *= s[Y];
+    assert_close( ret, m * NR::Matrix(s) );
+    return ret;
+}
+
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :