It is just my 2c, but I really dislike the Tioga approach. It feels like typesetting a book in TeX by writing a single-shot pascal program. ;-)
Specifically, I find code like this (Tioga):
move_to_point(x0, y0) append_curve_to_path(x1, y1, x2, y2, x3, y3)
far uglier than this (Asymptote/MetaPost):
z0.. controls z1 and z2 .. z3
Very true, but you forgot that in Tioga everything is done inside Ruby interpreter. Tioga is a Ruby extension so you could use the power of Ruby, its standard library and all the other extensions made for it inside Tioga. However, I don't like Asymptote, just seeing things like this: ---------------------- struct parent { real x=1; public void virtual(int) {write (0);} void f() {virtual(1);} } parent operator init() {return new parent;} void write(parent p) {write(p.x);} struct child { parent parent; real y=2; void virtual(int x) {write (x);} parent.virtual=virtual; void f()=parent.f; } parent operator cast(child child) {return child.parent;} child operator init() {return new child;} parent p; child c; write(c); // Outputs 1; p.f(); // Outputs 0; c.f(); // Outputs 1; write(c.parent.x); // Outputs 1; write(c.y); --------------- But, do we really need a baroque language like this to just draw some primitive graphics? jk -- Jilani KHALDI http://jkhaldi.oltrelinux.com