Raphael.path2curve does not honor original shape. By @timo22345

raphael.core.js

@@ -1997,13 +1997,25 @@
                             path = ["C"][concat](a2c[apply](0, [d.x, d.y][concat](path.slice(1))));
                             break;
                         case "S":
-                            nx = d.x + (d.x - (d.bx || d.x));
-                            ny = d.y + (d.y - (d.by || d.y));
+                            if (pcom == "C" || pcom == "S") { // In "S" case we have to take into account, if the previous command is C/S.
+                                nx = d.x * 2 - d.bx;          // And reflect the previous
+                                ny = d.y * 2 - d.by;          // command's control point relative to the current point.
+                            }
+                            else {                            // or some else or nothing
+                                nx = d.x;
+                                ny = d.y;
+                            }
                             path = ["C", nx, ny][concat](path.slice(1));
                             break;
                         case "T":
-                            d.qx = d.x + (d.x - (d.qx || d.x));
-                            d.qy = d.y + (d.y - (d.qy || d.y));
+                            if (pcom == "Q" || pcom == "T") { // In "T" case we have to take into account, if the previous command is Q/T.
+                                d.qx = d.x * 2 - d.qx;        // And make a reflection similar
+                                d.qy = d.y * 2 - d.qy;        // to case "S".
+                            }
+                            else {                            // or something else or nothing
+                                d.qx = d.x;
+                                d.qy = d.y;
+                            }
                             path = ["C"][concat](q2c(d.x, d.y, d.qx, d.qy, path[1], path[2]));
                             break;
                         case "Q":

raphael.js

@@ -2376,13 +2376,25 @@
                             path = ["C"][concat](a2c[apply](0, [d.x, d.y][concat](path.slice(1))));
                             break;
                         case "S":
-                            nx = d.x + (d.x - (d.bx || d.x));
-                            ny = d.y + (d.y - (d.by || d.y));
+                            if (pcom == "C" || pcom == "S") { // In "S" case we have to take into account, if the previous command is C/S.
+                                nx = d.x * 2 - d.bx;          // And reflect the previous
+                                ny = d.y * 2 - d.by;          // command's control point relative to the current point.
+                            }
+                            else {                            // or some else or nothing
+                                nx = d.x;
+                                ny = d.y;
+                            }
                             path = ["C", nx, ny][concat](path.slice(1));
                             break;
                         case "T":
-                            d.qx = d.x + (d.x - (d.qx || d.x));
-                            d.qy = d.y + (d.y - (d.qy || d.y));
+                            if (pcom == "Q" || pcom == "T") { // In "T" case we have to take into account, if the previous command is Q/T.
+                                d.qx = d.x * 2 - d.qx;        // And make a reflection similar
+                                d.qy = d.y * 2 - d.qy;        // to case "S".
+                            }
+                            else {                            // or something else or nothing
+                                d.qx = d.x;
+                                d.qy = d.y;
+                            }
                             path = ["C"][concat](q2c(d.x, d.y, d.qx, d.qy, path[1], path[2]));
                             break;
                         case "Q":