source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- TODO
- This doth suck. We should have PS output, and read spacing info from TFMs
+ Jan Nieuwenhuizen <janneke@gnu.org>
- Glissando,
+ TODO
+ Glissando
+ merge rulesym and filledbox.
*/
+#include <ctype.h>
#include "lookup.hh"
#include "debug.hh"
-#include "symtable.hh"
-#include "dimen.hh"
-#include "tex.hh"
+#include "dimensions.hh"
#include "scalar.hh"
#include "paper-def.hh"
#include "string-convert.hh"
+#include "file-path.hh"
#include "main.hh"
-
-Lookup::Lookup()
+#include "lily-guile.hh"
+#include "all-fonts.hh"
+#include "afm.hh"
+#include "scope.hh"
+#include "molecule.hh"
+#include "atom.hh"
+#include "lily-guile.hh"
+
+SCM
+array_to_list (SCM *a , int l)
{
- paper_l_ = 0;
- texsetting = "\\unknowntexsetting";
- symtables_p_ = new Symtables;
+ SCM list = SCM_EOL;
+ for (int i= l; i--; )
+ {
+ list = gh_cons (a[i], list);
+ }
+ return list;
}
-Lookup::Lookup (Lookup const &s)
+
+Lookup::Lookup ()
{
- paper_l_ = s.paper_l_;
- texsetting = s.texsetting;
- symtables_p_ = new Symtables (*s.symtables_p_);
+ paper_l_ = 0;
+ afm_l_ = 0;
}
-Lookup::~Lookup()
+
+Lookup::Lookup (Lookup const& s)
{
- delete symtables_p_;
+ font_name_ = s.font_name_;
+ paper_l_ = 0;
+ afm_l_ = 0;
}
-void
-Lookup::add (String s, Symtable*p)
+
+Molecule
+Lookup::ledger_line (Interval xwid) const
{
- symtables_p_->add (s, p);
+ Molecule end (afm_find ("noteheads-ledgerending"));
+ Interval ed = end.dim_[X_AXIS];
+ xwid = Interval (xwid[LEFT] - ed[LEFT],
+ xwid[RIGHT] - ed[RIGHT]);
+ Molecule mid = filledbox (Box (xwid, end.dim_[Y_AXIS]));
+ Molecule l (mid);
+
+ Molecule e2 = end;
+ Molecule e1 = end;
+ e1.translate_axis (xwid[RIGHT], X_AXIS);
+ e2.translate_axis (xwid[LEFT], X_AXIS);
+
+ l.add_molecule (e1);
+ l.add_molecule (e2);
+ return l;
}
-void
-Lookup::print() const
+
+Molecule
+Lookup::accidental (int j, bool cautionary) const
{
-#ifndef NPRINT
- DOUT << "Lookup: " << texsetting << " {\n";
- symtables_p_->print();
- DOUT << "}\n";
-#endif
+ Molecule m(afm_find (String ("accidentals-") + to_str (j)));
+ if (cautionary)
+ {
+ Molecule open = afm_find (String ("accidentals-("));
+ Molecule close = afm_find (String ("accidentals-)"));
+ m.add_at_edge(X_AXIS, LEFT, Molecule(open), 0);
+ m.add_at_edge(X_AXIS, RIGHT, Molecule(close), 0);
+ }
+ return m;
}
-Atom
-Lookup::text (String style, String text, int dir) const
-{
- Array<String> a;
- a.push (text);
- Atom tsym = (*symtables_p_)("style")->lookup (style);
- a[0] = substitute_args (tsym.tex_,a);
- Atom s = (*symtables_p_)("align")->lookup (dir);
- s.tex_ = substitute_args (s.tex_,a);
- s.dim_ = tsym.dim_;
- return s;
+Molecule
+Lookup::afm_find (String s, bool warn) const
+{
+ if (!afm_l_)
+ {
+ Lookup * me = (Lookup*)(this);
+ me->afm_l_ = all_fonts_global_p->find_afm (font_name_);
+ if (!me->afm_l_)
+ {
+ warning (_f("Can't open `%s'\n", font_name_));
+ warning (_f("Search path %s\n", global_path.str ().ch_C()));
+ error (_f("Aborting"));
+ }
+ }
+ Adobe_font_char_metric cm = afm_l_->find_char (s, warn);
+ Molecule m;
+ if (cm.code () < 0)
+ {
+ /*
+ don't want people relying on this kind of dimension.
+ */
+ m.set_empty (false);
+ return m;
+ }
+
+ Atom at (gh_list (char_scm_sym,
+ gh_int2scm (cm.code ()),
+ SCM_UNDEFINED));
+ at.font_ = ly_symbol (font_name_.ch_C());
+ m.dim_ = cm.dimensions();
+ m.add_atom (&at);
+ return m;
}
-
-
-Atom
-Lookup::ball (int j) const
+Molecule
+Lookup::notehead (int j, String type) const
{
if (j > 2)
j = 2;
- Symtable * st = (*symtables_p_)("balls");
- return st->lookup (String (j));
+ return afm_find (String ("noteheads-") + to_str (j) + type);
}
-Atom
-Lookup::rest (int j, bool o) const
+Molecule
+Lookup::simple_bar (String type, Real h) const
{
- return (*symtables_p_)("rests")->lookup (String (j) + (o ? "o" : ""));
-}
+ SCM thick = ly_symbol ("barthick_" + type);
+ Real w = 0.1 PT;
+ if (paper_l_->scope_p_->elem_b (thick))
+ {
+ w = paper_l_->get_realvar (thick);
+ }
-Atom
-Lookup::fill (Box b) const
-{
- Atom s ((*symtables_p_)("param")->lookup ("fill"));
- s.dim_ = b;
- return s;
+ return filledbox (Box (Interval(0,w), Interval(-h/2, h/2)));
}
-Atom
-Lookup::accidental (int j) const
+
+Molecule
+Lookup::bar (String str, Real h) const
{
- return (*symtables_p_)("accidentals")->lookup (String (j));
-}
-
+ if (str == "[")
+ return staff_bracket (h);
+ else if (str == "{")
+ return staff_brace (h);
+
+ Real kern = paper_l_->get_var ("bar_kern");
+ Real thinkern = paper_l_->get_var ("bar_thinkern");
+ Molecule thin = simple_bar ("thin", h);
+ Molecule thick = simple_bar ("thick", h);
+ Molecule colon = afm_find ("dots-repeatcolon");
-Atom
-Lookup::bar (String s, Real h) const
-{
- Array<String> a;
- a.push (print_dimen (h));
- Atom ret=(*symtables_p_)("bars")->lookup (s);
- ret.tex_ = substitute_args (ret.tex_, a);
- ret.dim_.y() = Interval (-h/2, h/2);
- return ret;
-}
+ Molecule m;
+
+ if (str == "")
+ {
+ return fill (Box (Interval(0, 0), Interval (-h/2, h/2)));
+ }
+ if (str == "scorepostbreak")
+ {
+ return simple_bar ("score", h);
+ }
+ else if (str == "|")
+ {
+ return thin;
+ }
+ else if (str == "|.")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, 0);
+ m.add_at_edge (X_AXIS, LEFT, thin, kern);
+ }
+ else if (str == ".|")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thick, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, kern);
+ }
+ else if (str == ":|")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, 0);
+ m.add_at_edge (X_AXIS, LEFT, thin, kern);
+ m.add_at_edge (X_AXIS, LEFT, colon, kern);
+ }
+ else if (str == "|:")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thick, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, kern);
+ m.add_at_edge (X_AXIS, RIGHT, colon, kern);
+ }
+ else if (str == ":|:")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
+ m.add_at_edge (X_AXIS, LEFT, colon, kern);
+ m.add_at_edge (X_AXIS, RIGHT, thick, kern);
+ m.add_at_edge (X_AXIS, RIGHT, colon, kern);
+ }
+ else if (str == ".|.")
+ {
+ m.add_at_edge (X_AXIS, LEFT, thick, thinkern);
+ m.add_at_edge (X_AXIS, RIGHT, thick, kern);
+ }
+ else if (str == "||")
+ {
+ m.add_at_edge (X_AXIS, RIGHT, thin, 0);
+ m.add_at_edge (X_AXIS, RIGHT, thin, thinkern);
+ }
-Atom
-Lookup::script (String s) const
-{
- return (*symtables_p_)("scripts")->lookup (s);
+ return m;
}
-Atom
-Lookup::dynamic (String s) const
+Molecule
+Lookup::beam (Real slope, Real width, Real thick) const
{
- return (*symtables_p_)("dynamics")->lookup (s);
-}
+ Real height = slope * width;
+ Real min_y = (0 <? height) - thick/2;
+ Real max_y = (0 >? height) + thick/2;
-Atom
-Lookup::clef (String s) const
-{
- return (*symtables_p_)("clefs")->lookup (s);
+
+ Molecule m;
+ Atom at
+ (gh_list (beam_scm_sym,
+ gh_double2scm (width),
+ gh_double2scm (slope),
+ gh_double2scm (thick),
+ SCM_UNDEFINED));
+
+ m.dim_[X_AXIS] = Interval (0, width);
+ m.dim_[Y_AXIS] = Interval (min_y, max_y);
+ m.add_atom (&at);
+ return m;
}
-Atom
-Lookup::dots () const
+Molecule
+Lookup::clef (String st) const
{
- return (*symtables_p_)("dots")->lookup ("dot");
+ return afm_find (String ("clefs-" + st));
}
-Atom
-Lookup::flag (int j, Direction d) const
+SCM
+offset2scm (Offset o)
{
- char c = (d == UP) ? 'u' : 'd';
- return (*symtables_p_)("flags")->lookup (c + String (j));
+ return gh_list (gh_double2scm (o[X_AXIS]), gh_double2scm(o[Y_AXIS]),
+ SCM_UNDEFINED);
}
-Atom
-Lookup::slur (Array<Offset> controls) const
+Molecule
+Lookup::dashed_slur (Array<Offset> controls, Real thick, Real dash) const
{
assert (controls.size () == 8);
-
- String ps = "\\embeddedps{\n";
+ Offset d = controls[3] - controls[0];
- Real dx = controls[3].x () - controls[0].x ();
- Real dy = controls[3].y () - controls[0].y ();
-
- for (int i = 5; i < 8; i++)
- ps += String_convert::double_str (controls[i].x ()) + " "
- + String_convert::double_str (controls[i].y ()) + " ";
+ Real dx = d[X_AXIS];
+ Real dy = d[Y_AXIS];
- ps += String_convert::double_str (controls[4].x ()) + " "
- + String_convert::double_str (controls[4].y ()) + " ";
+ Molecule m;
- for (int i = 1; i < 4; i++)
- ps += String_convert::double_str (controls[i].x ()) + " "
- + String_convert::double_str (controls[i].y ()) + " ";
- ps += String_convert::double_str (controls[0].x ()) + " "
- + String_convert::double_str (controls[0].y ()) + " ";
+ m.dim_[X_AXIS] = Interval (0, dx);
+ m.dim_[Y_AXIS] = Interval (0 <? dy, 0 >? dy);
- ps += " draw_slur}";
+ SCM sc[4];
+ for (int i=0; i< 4; i++)
+ {
+ sc[i] = offset2scm (controls[i]);
+ }
- Atom s;
- s.tex_ = ps;
+ Atom at
+ (gh_list (ly_symbol ("dashed-slur"),
+ gh_double2scm (thick),
+ gh_double2scm (dash),
+ ly_quote_scm (array_to_list (sc, 4)),
+ SCM_UNDEFINED));
+
- s.dim_[X_AXIS] = Interval (0, dx);
- s.dim_[Y_AXIS] = Interval (0 <? dy, 0 >? dy);
- return s;
+ m.add_atom (&at);
+ return m;
}
-Atom
-Lookup::streepje (int type) const
+Molecule
+Lookup::dots () const
{
- if (type > 2)
- type = 2;
+ return afm_find (String ("dots-dot"));
+}
- Symtable * st = (*symtables_p_)("balls");
-
- return st->lookup (String (type) + 'l');
+
+
+Molecule
+Lookup::fill (Box b) const
+{
+ Molecule m;
+ m.dim_ = b;
+ return m;
}
-Atom
-Lookup::hairpin (Real width, bool decresc, bool continued) const
+Molecule
+Lookup::flag (int j, Direction d) const
{
- String embed;
- Atom ret;
- Real height = paper_l_->get_var ("barsize") / 6;
- embed = "\\embeddedps{\n" ;
- embed += String (width) + " "
- + String (height) + " "
- + String (continued ? height/2 : 0) +
- + " draw_" + String(decresc ? "de" : "") + "cresc}\n";
- ret.tex_ = embed;
+ char c = (d == UP) ? 'u' : 'd';
+ return afm_find (String ("flags-") + to_str (c) + to_str (j));
+}
+Molecule
+Lookup::rest (int j, bool o, String style) const
+{
+ return afm_find (String ("rests-") + to_str (j) + (o ? "o" : "") + style);
+}
- ret.dim_.x () = Interval (0, width);
- ret.dim_.y () = Interval (-2*height, 2*height);
+Molecule
+Lookup::rule_symbol (Real height, Real width) const
+{
+ Atom at (gh_list (rulesym_scm_sym,
+ gh_double2scm (height),
+ gh_double2scm (width),
+ SCM_UNDEFINED));
+
+ Molecule m;
+ m.dim_.x () = Interval (0, width);
+ m.dim_.y () = Interval (0, height);
+
+ m.add_atom (&at);
- return ret;
+ return m;
}
-Atom
-Lookup::meter (Array<Scalar> a) const
+Molecule
+Lookup::special_time_signature (String s, int n, int d) const
{
- Atom s((*symtables_p_)("param")->lookup ("meter"));
- s.tex_ = substitute_args (s.tex_,a);
- return s;
+ // First guess: s contains only the signature style
+ String symbolname = "timesig-" + s + to_str (n) + "/" + to_str (d);
+
+ Molecule m = afm_find (symbolname, false);
+ if (!m.empty_b())
+ return m;
+
+ // Second guess: s contains the full signature name
+ m = afm_find ("timesig-"+s, false);
+ if (!m.empty_b ())
+ return m;
+
+ // Resort to default layout with numbers
+ return time_signature (n,d);
}
+Molecule
+Lookup::filledbox (Box b ) const
+{
+ Molecule m;
+
+ Atom at (gh_list (filledbox_scm_sym,
+ gh_double2scm (-b[X_AXIS][LEFT]),
+ gh_double2scm (b[X_AXIS][RIGHT]),
+ gh_double2scm (-b[Y_AXIS][DOWN]),
+ gh_double2scm (b[Y_AXIS][UP]),
+ SCM_UNDEFINED));
+
+ m.dim_ = b;
+ m.add_atom (&at);
+ return m;
+}
-Atom
-Lookup::stem (Real y1,Real y2) const
+Molecule
+Lookup::stem (Real y1, Real y2) const
{
if (y1 > y2)
{
y1 = y2;
y2 = t;
}
- Atom s;
+ Real stem_width = paper_l_->get_var ("stemthickness");
+ return filledbox (Box (Interval (-stem_width/2,stem_width/2),
+ Interval (y1, y2)));
+}
- s.dim_.x() = Interval (0,0);
- s.dim_.y() = Interval (y1,y2);
- Array<String> a;
- a.push (print_dimen (y1));
- a.push (print_dimen (y2));
- String src = (*symtables_p_)("param")->lookup ("stem").tex_;
- s.tex_ = substitute_args (src,a);
- return s;
-}
+/**
+ Magnification steps. These are powers of 1.2. The numbers are
+ taken from Knuth's plain.tex: */
+static Real mag_steps[] = {1, 1, 1.200, 1.440, 1.7280, 2.074, 2.488};
-/*
- should be handled via Tex_ code and Lookup::bar()
- */
-Atom
-Lookup::vbrace (Real &y) const
+
+
+Molecule
+Lookup::text (String style, String text) const
{
- Atom brace = (*symtables_p_)("param")->lookup ("brace");
- Interval ydims = brace.dim_[Y_AXIS];
- Real min_y = ydims[LEFT];
- Real max_y = ydims[RIGHT];
- Real step = 1.0 PT;
-
- if (y < min_y)
+ Molecule m;
+ if (style.empty_b ())
+ style = "roman";
+
+ int font_mag = 1;
+ Real font_h = paper_l_->get_var ("font_normal");
+ if (paper_l_->scope_p_->elem_b ("font_" + style))
+ {
+ font_h = paper_l_->get_var ("font_" + style);
+ }
+
+ if (paper_l_->scope_p_->elem_b ("magnification_" + style))
+ {
+ font_mag = (int)paper_l_->get_var ("magnification_" + style);
+ }
+
+ /*
+ UGH.
+ */
+ SCM l = gh_eval_str (("(style-to-cmr \"" + style + "\")").ch_C());
+ if (l != SCM_BOOL_F)
{
- warning (_("piano brace too small (") + print_dimen (y)+ ")");
- y = min_y;
+ style = ly_scm2string (SCM_CDR(l)) +to_str ((int)font_h);
}
- if (y > max_y)
+
+ Real w = 0;
+ Interval ydims (0,0);
+
+ Font_metric* afm_l = all_fonts_global_p->find_font (style);
+ DOUT << "\nChars: ";
+
+ for (int i = 0; i < text.length_i (); i++)
{
- warning (_("piano brace too big (") + print_dimen (y)+ ")");
- y = max_y;
+ if (text[i]=='\\')
+ for (i++; (i < text.length_i ()) && isalpha(text[i]); i++)
+ ;
+ else
+ {
+ Character_metric *c = afm_l->get_char ((unsigned char)text[i],false);
+
+ w += c->dimensions()[X_AXIS].length ();
+ ydims.unite (c->dimensions()[Y_AXIS]);
+ }
}
+ if (font_mag > 1 && font_mag < 7 )
+ {
+ /* UGH */
+ style = style + String(" scaled \\magstep ") + to_str (font_mag);
+ w *= mag_steps[font_mag];
+ ydims *= mag_steps[font_mag];
+ }
+
+ DOUT << "\n" << to_str (w) << "\n";
+ m.dim_.x () = Interval (0, w);
+ m.dim_.y () = ydims;
+
- int idx = int (rint ((y- min_y)/step)) + 1;
+ Atom at (gh_list (text_scm_sym,
+ gh_str02scm (text.ch_C()),
+ SCM_UNDEFINED));
+ at.font_ = ly_symbol (style);
- {
- Array<String> a;
- a.push (idx);
- brace.tex_ = substitute_args (brace.tex_,a);
- brace.dim_[Y_AXIS] = Interval (-y/2,y/2);
- }
-
- return brace;
+ m.add_atom (&at);
+ return m;
}
+
-Atom
-Lookup::vbracket (Real &y) const
+Molecule
+Lookup::time_signature (int num, int den) const
{
- Atom psbracket;
- psbracket.tex_ = String ("\\embeddedps{ ") + y + " draw_bracket}";
- psbracket.dim_[Y_AXIS] = Interval (-y/2,y/2);
- psbracket.dim_[X_AXIS] = Interval (0,4 PT);
- return psbracket;
- Atom bracket = (*symtables_p_)("param")->lookup ("bracket");
- Interval ydims = bracket.dim_[Y_AXIS];
-
- Real min_y = ydims[LEFT];
- Real max_y = ydims[RIGHT];
- Real step = 1.0 PT;
-
- if (y < min_y)
+ String sty = "number";
+ Molecule n (text (sty, to_str (num)));
+ Molecule d (text (sty, to_str (den)));
+ n.align_to (X_AXIS, CENTER);
+ d.align_to (X_AXIS, CENTER);
+ Molecule m;
+ if (den)
{
- warning (_("bracket too small (") + print_dimen (y)+ ")");
- y = min_y;
+ m.add_at_edge (Y_AXIS, UP, n, 0.0);
+ m.add_at_edge (Y_AXIS, DOWN, d, 0.0);
}
- if (y > max_y)
+ else
{
- warning (_("bracket too big (") + print_dimen (y)+ ")");
- y = max_y;
+ m = n;
+ m.align_to (Y_AXIS, CENTER);
}
+ return m;
+}
+Molecule
+Lookup::staff_brace (Real y) const
+{
+ Molecule m;
- int idx = int (rint ((y- min_y)/step)) + 1;
+ Atom at (gh_list (pianobrace_scm_sym,
+ gh_double2scm (y),
+ SCM_UNDEFINED
+ ));
- {
- Array<String> a;
- a.push (idx);
- bracket.tex_ = substitute_args (bracket.tex_,a);
- bracket.dim_[Y_AXIS] = Interval (-y/2,y/2);
- }
-
- return bracket;
+ m.dim_[Y_AXIS] = Interval (-y/2,y/2);
+ m.dim_[X_AXIS] = Interval (0,0);
+ m.add_atom (&at);
+ return m;
+}
+
+Molecule
+Lookup::hairpin (Real width, bool decresc, bool continued) const
+{
+ Molecule m;
+ Real height = paper_l_->staffheight_f () / 6;
+
+ String hairpin = String (decresc ? "de" : "") + "crescendo";
+ Atom at (gh_list (ly_symbol (hairpin),
+ gh_double2scm (width),
+ gh_double2scm (height),
+ gh_double2scm (continued ? height/2 : 0.0),
+ SCM_UNDEFINED));
+ m.dim_.x () = Interval (0, width);
+ m.dim_.y () = Interval (-2*height, 2*height);
+
+ m.add_atom (&at);
+ return m;
+}
+
+Molecule
+Lookup::plet (Real dy , Real dx, Direction dir) const
+{
+ Molecule m;
+ SCM thick = tuplet_thick_scm_sym;
+ Real t = 0.1 PT;
+ if (paper_l_->scope_p_->elem_b (thick))
+ {
+ t = paper_l_->get_realvar (thick);
+ }
+
+ Real interline_f = paper_l_->get_realvar (interline_scm_sym);
+ Atom at (gh_list(tuplet_scm_sym,
+ gh_double2scm (interline_f),
+ gh_double2scm (dx),
+ gh_double2scm (dy),
+ gh_double2scm (t),
+ gh_int2scm (dir),
+ SCM_UNDEFINED));
+ m.add_atom (&at);
+
+ return m;
+}
+
+/*
+ Make a smooth curve along the points
+ */
+Molecule
+Lookup::slur (Array<Offset> controls) const
+{
+ Offset delta_off = controls[3]- controls[0];
+ Molecule m;
+
+ SCM scontrols [8];
+ int indices[] = {5,6,7,4,1,2,3,0};
+
+ for (int i= 0; i < 8; i++)
+ scontrols[i] = offset2scm (controls[indices[i]]);
+
+
+ Atom at (gh_list (ly_symbol ("bezier-sandwich"),
+ ly_quote_scm (array_to_list (scontrols, 8)),
+ SCM_UNDEFINED));
+
+ m.dim_[X_AXIS] = Interval (0, delta_off[X_AXIS]);
+ m.dim_[Y_AXIS] = Interval (0 <? delta_off[Y_AXIS], 0 >? delta_off[Y_AXIS]);
+ m.add_atom (&at);
+ return m;
+}
+
+Molecule
+Lookup::staff_bracket (Real y) const
+{
+ Molecule m;
+ Atom at ( gh_list (bracket_scm_sym,
+ gh_double2scm (y),
+ SCM_UNDEFINED));
+ m.add_atom (&at);
+ m.dim_[Y_AXIS] = Interval (-y/2,y/2);
+ m.dim_[X_AXIS] = Interval (0,4 PT);
+
+ m.translate_axis (- 4. / 3. * m.dim_[X_AXIS].length (), X_AXIS);
+ return m;
}
+Molecule
+Lookup::volta (Real w, bool last_b) const
+{
+ Molecule m;
+ SCM thick = volta_thick_scm_sym;
+ Real t = 0.1 PT;
+ if (paper_l_->scope_p_->elem_b (thick))
+ {
+ t = paper_l_->get_realvar (thick);
+ }
+ Atom at (gh_list (volta_scm_sym,
+ gh_double2scm (w),
+ gh_double2scm (t),
+ gh_int2scm (last_b),
+ SCM_UNDEFINED));
+
+ Real interline_f = paper_l_->get_realvar (interline_scm_sym);
+
+ m.dim_[Y_AXIS] = Interval (-interline_f, interline_f);
+ m.dim_[X_AXIS] = Interval (0, w);
+
+ m.add_atom (&at);
+ return m;
+}
+
+