parabolic1 generates a straight line in Euclidean

2018-12-04 23:06:24 +01:00 · 2018-12-04 23:06:24 +01:00 · e244e3cff8
parent 285211bcf3
commit e244e3cff8
1 changed files with 4 additions and 1 deletions
--- a/hyperpoint.cpp
+++ b/hyperpoint.cpp
@ -320,7 +320,10 @@ transmatrix ypush(ld alpha) {
  }

 transmatrix parabolic1(ld u) {
-  return transmatrix {{{-u*u/2+1, u, u*u/2}, {-u, 1, u}, {-u*u/2, u, u*u/2+1}}};
+  if(euclid)
+    return ypush(u);
+  else
+    return transmatrix {{{-u*u/2+1, u, u*u/2}, {-u, 1, u}, {-u*u/2, u, u*u/2+1}}};
  }

 // rotate the hyperbolic plane around C0 such that H[1] == 0 and H[0] >= 0