def save_as_sbgn(n2lo, e2lo, model, out_sbgn):
"""
Converts a model with the given node and edge layout to SBGN PD (see http://www.sbgn.org/).
:param n2lo: node layout as a dictionary {node_id: ((x, y), (w, h)) if node is not ubiquitous
else node_id : {r_ids: ((x, y), (w, h)) for r_ids of
reactions using each duplicated metabolite}}
:param e2lo: edge layout as a dictionary {edge_id: [(x_start, y_start), (x_bend_0, y_bend_0),..,(x_end, y_end)]},
where edge_id = "-".join(sorted((metabolite_id, reaction_id))).
:param model: SBML model
:param out_sbgn: path where to save the resulting SBGN file.
"""
# let's scale the map so that a minimal node has a width == 16 (so that the labels fit)
h_min, (x_shift, y_shift), (w, h) = get_layout_characteristics(n2lo)
scale_factor = MARGIN * 1.0 / h_min if h_min else 1
(w, h) = scale((w, h), scale_factor)
(x_shift, y_shift) = shift(scale((x_shift, y_shift), scale_factor), MARGIN, MARGIN)
# create empty sbgn
sbgn = libsbgn.sbgn()
# create map, set language and set in sbgn
sbgn_map = libsbgn.map()
sbgn_map.set_language(Language.PD)
sbgn.set_map(sbgn_map)
# create a bounding box for the map
box = libsbgn.bbox(0, 0, w + 2 * MARGIN, h + 2 * MARGIN)
sbgn_map.set_bbox(box)
# glyphs with labels
for comp in model.getListOfCompartments():
c_id = comp.getId()
c_name = comp.getName()
if not c_name:
c_name = c_id
if c_id in n2lo:
(x, y), (w, h) = transform(n2lo[c_id], x_shift, y_shift, scale_factor)
g = libsbgn.glyph(class_=GlyphClass.COMPARTMENT, id=c_id)
g.set_label(libsbgn.label(text=c_name, bbox=libsbgn.bbox(x, y, w, h)))
g.set_bbox(libsbgn.bbox(x, y, w, h))
sbgn_map.add_glyph(g)
for species in model.getListOfSpecies():
s_id = species.getId()
s_name = species.getName()
glyph_type = GlyphClass.UNSPECIFIED_ENTITY
sbo_term = species.getSBOTermID()
if sbo_term:
sbo_term = sbo_term.upper().strip()
if sbo_term in SBO_2_GLYPH_TYPE:
glyph_type = SBO_2_GLYPH_TYPE[sbo_term]
if not s_name:
s_name = s_id
if s_id in n2lo:
if isinstance(n2lo[s_id], dict):
elements = n2lo[s_id].items()
else:
elements = [('', n2lo[s_id])]
for r_ids, coords in elements:
if not r_ids or next((it for it in (model.getReaction(r_id) for r_id in r_ids) if it), False):
(x, y), (w, h) = transform(coords, x_shift, y_shift, scale_factor)
g = libsbgn.glyph(class_=glyph_type, id="%s_%s" % (s_id, '_'.join(r_ids)) if r_ids else s_id,
compartmentRef=species.getCompartment())
g.set_label(libsbgn.label(text=s_name,
bbox=libsbgn.bbox(x + w * 0.1, y + h * 0.1, w * 0.8, h * 0.8)))
g.set_bbox(libsbgn.bbox(x, y, w, h))
sbgn_map.add_glyph(g)
# glyph with ports (process)
for reaction in model.getListOfReactions():
r_id = reaction.getId()
if r_id in n2lo:
(x, y), (w, h) = transform(n2lo[r_id], x_shift, y_shift, scale_factor)
g = libsbgn.glyph(class_=GlyphClass.PROCESS, id=r_id)
g.set_bbox(libsbgn.bbox(x, y, w, h))
rev = reaction.getReversible()
in_port = None
for s_id in (species_ref.getSpecies() for species_ref in reaction.getListOfReactants()):
edge_id = "-".join(sorted((s_id, r_id)))
if edge_id in e2lo:
xy_list = e2lo[edge_id]
if not in_port:
port_x, port_y = shift(scale(xy_list[-2] if len(xy_list) > 2 else xy_list[-1], scale_factor),
x_shift, y_shift)
in_port = libsbgn.port(x=port_x, y=port_y, id="%s__in" % r_id)
g.add_port(in_port)
sref_id = s_id
if isinstance(n2lo[s_id], dict):
for r_ids in n2lo[s_id].keys():
if r_id in r_ids:
sref_id = "%s_%s" % (s_id, '_'.join(r_ids))
a = libsbgn.arc(class_=ArcClass.PRODUCTION if rev else ArcClass.CONSUMPTION,
target=sref_id if rev else in_port.get_id(),
source=in_port.get_id() if rev else sref_id, id="a_%s_%s" % (s_id, r_id))
s_x, s_y = shift(scale(xy_list[0], scale_factor), x_shift, y_shift)
a.set_start(libsbgn.startType(x=in_port.get_x() if rev else s_x, y=in_port.get_y() if rev else s_y))
a.set_end(libsbgn.endType(x=s_x if rev else in_port.get_x(), y=s_y if rev else in_port.get_y()))
sbgn_map.add_arc(a)
out_port = None
for s_id in (species_ref.getSpecies() for species_ref in reaction.getListOfProducts()):
edge_id = "-".join(sorted((s_id, r_id)))
if edge_id in e2lo:
xy_list = e2lo[edge_id]
if not out_port:
port_x, port_y = shift(scale(xy_list[1] if len(xy_list) > 2 else xy_list[0], scale_factor),
x_shift, y_shift)
out_port = libsbgn.port(x=port_x, y=port_y, id="%s__out" % r_id)
g.add_port(out_port)
sref_id = s_id
if isinstance(n2lo[s_id], dict):
for r_ids in n2lo[s_id].keys():
if r_id in r_ids:
sref_id = "%s_%s" % (s_id, '_'.join(r_ids))
a = libsbgn.arc(class_=ArcClass.PRODUCTION, target=sref_id, source=out_port.get_id(),
id="a_%s_%s" % (r_id, s_id))
s_x, s_y = shift(scale(xy_list[-1], scale_factor), x_shift, y_shift)
a.set_end(libsbgn.startType(x=s_x, y=s_y))
a.set_start(libsbgn.endType(x=out_port.get_x(), y=out_port.get_y()))
sbgn_map.add_arc(a)
sbgn_map.add_glyph(g)
# write everything to a file
sbgn.write_file(out_sbgn)
def save_as_cytoscape_json(n2lo, model, out_json, ub_sp_ids):
"""
Converts a model with the given node and edge layout to a json file readable by Cytoscape.
:param ub_sp_ids: collection of ubiquitous species ids
:param n2lo: node layout as a dictionary {node_id: ((x, y), (w, h)) if node is not ubiquitous
else node_id : {r_ids: ((x, y), (w, h)) for r_ids of
reactions using each duplicated metabolite}}
:param model: SBML model
:param out_json: path where to save the resulting json file.
"""
# let's scale the map so that a minimal node has a width == 16 (so that the labels fit)
h_min, (x_shift, y_shift), _ = get_layout_characteristics(n2lo)
scale_factor = MARGIN * 1.0 / h_min if h_min else 1
(x_shift, y_shift) = shift(scale((x_shift, y_shift), scale_factor), MARGIN, MARGIN)
nodes, edges = [], []
for comp in model.getListOfCompartments():
c_id = comp.getId()
c_name = get_name(comp)
if c_id in n2lo:
(x, y), (w, h) = transform(n2lo[c_id], x_shift, y_shift, scale_factor)
nodes.append(get_node(x=x + w / 2, y=y + h / 2, z=-1,
**{NAME: c_name, ID: c_id, WEIGHT: w, HEIGHT: h, TYPE: TYPE_COMPARTMENT}))
for species in model.getListOfSpecies():
s_id = species.getId()
s_name = get_name(species)
glyph_type = UNSPECIFIED_ENTITY
sbo_term = species.getSBOTermID()
if sbo_term:
sbo_term = sbo_term.upper().strip()
if sbo_term in SBO_2_GLYPH_TYPE:
glyph_type = SBO_2_GLYPH_TYPE[sbo_term]
if s_id in n2lo:
if isinstance(n2lo[s_id], dict):
elements = n2lo[s_id].items()
else:
elements = [('', n2lo[s_id])]
for r_ids, coords in elements:
if not r_ids or next((it for it in (model.getReaction(r_id) for r_id in r_ids) if it), False):
(x, y), (w, h) = transform(coords, x_shift, y_shift, scale_factor)
nodes.append(
get_node(x=x + w / 2, y=y + h / 2, z=1,
**{GLYPH_TYPE: glyph_type, ID: "%s_%s" % (s_id, '_'.join(r_ids)) if r_ids else s_id,
COMPARTMENT: species.getCompartment(), NAME: s_name, WEIGHT: w, HEIGHT: h,
TYPE: TYPE_SPECIES, UBIQUITOUS: s_id in ub_sp_ids,
'ChEBI': get_chebi_id(species)}))
def get_sref_id(s_id):
if isinstance(n2lo[s_id], dict):
for r_ids in n2lo[s_id].keys():
if r_id in r_ids:
return "%s_%s" % (s_id, '_'.join(r_ids))
return s_id
for reaction in model.getListOfReactions():
r_id = reaction.getId()
r_name = get_name(reaction)
ga = get_gene_association(reaction)
if r_id in n2lo:
(x, y), (w, h) = transform(n2lo[r_id], x_shift, y_shift, scale_factor)
nodes.append(get_node(x=x + w / 2, y=y + h / 2, z=1,
**{ID: r_id, NAME: ga, WEIGHT: w, HEIGHT: h, TYPE: TYPE_REACTION,
REVERSIBLE: reaction.getReversible(),
UBIQUITOUS:
next((False for s_id in chain(get_reactants(reaction), get_products(reaction))
if s_id not in ub_sp_ids), True),
'genes': ga, 'r_name': r_name}))
for s_id in get_reactants(reaction):
edges.append(get_edge(**{ID: "%s_%s" % (r_id, s_id), SOURCE: r_id, TARGET: get_sref_id(s_id),
NAME: '%s is a substrate of %s' % (get_name(model.getSpecies(s_id)), r_name),
UBIQUITOUS: s_id in ub_sp_ids, INTERACTION: SUBSTRATE}))
for s_id in get_products(reaction):
edges.append(get_edge(**{ID: "%s_%s" % (r_id, s_id), SOURCE: r_id, TARGET: get_sref_id(s_id),
NAME: '%s is a product of %s' % (get_name(model.getSpecies(s_id)), r_name),
UBIQUITOUS: s_id in ub_sp_ids, INTERACTION: PRODUCT}))
save_cyjson(nodes, edges, out_json)
def save_as_sbgn(n2lo, e2lo, model, out_sbgn):
"""
Converts a model with the given node and edge layout to SBGN PD (see http://www.sbgn.org/).
:param n2lo: node layout as a dictionary {node_id: ((x, y), (w, h)) if node is not ubiquitous
else node_id : {r_ids: ((x, y), (w, h)) for r_ids of
reactions using each duplicated metabolite}}
:param e2lo: edge layout as a dictionary {edge_id: [(x_start, y_start), (x_bend_0, y_bend_0),..,(x_end, y_end)]},
where edge_id = "-".join(sorted((metabolite_id, reaction_id))).
:param model: SBML model
:param out_sbgn: path where to save the resulting SBGN file.
"""
# let's scale the map so that a minimal node has a width == 16 (so that the labels fit)
h_min, (x_shift, y_shift), (w, h) = get_layout_characteristics(n2lo)
scale_factor = MARGIN * 1.0 / h_min if h_min else 1
(w, h) = scale((w, h), scale_factor)
(x_shift, y_shift) = shift(scale((x_shift, y_shift), scale_factor), MARGIN,
MARGIN)
# create empty sbgn
sbgn = libsbgn.sbgn()
# create map, set language and set in sbgn
sbgn_map = libsbgn.map()
sbgn_map.set_language(Language.PD)
sbgn.set_map(sbgn_map)
# create a bounding box for the map
box = libsbgn.bbox(0, 0, w + 2 * MARGIN, h + 2 * MARGIN)
sbgn_map.set_bbox(box)
# glyphs with labels
for comp in model.getListOfCompartments():
c_id = comp.getId()
c_name = comp.getName()
if not c_name:
c_name = c_id
if c_id in n2lo:
(x, y), (w, h) = transform(n2lo[c_id], x_shift, y_shift,
scale_factor)
g = libsbgn.glyph(class_=GlyphClass.COMPARTMENT, id=c_id)
g.set_label(
libsbgn.label(text=c_name, bbox=libsbgn.bbox(x, y, w, h)))
g.set_bbox(libsbgn.bbox(x, y, w, h))
sbgn_map.add_glyph(g)
for species in model.getListOfSpecies():
s_id = species.getId()
s_name = species.getName()
glyph_type = GlyphClass.UNSPECIFIED_ENTITY
sbo_term = species.getSBOTermID()
if sbo_term:
sbo_term = sbo_term.upper().strip()
if sbo_term in SBO_2_GLYPH_TYPE:
glyph_type = SBO_2_GLYPH_TYPE[sbo_term]
if not s_name:
s_name = s_id
if s_id in n2lo:
if isinstance(n2lo[s_id], dict):
elements = n2lo[s_id].items()
else:
elements = [('', n2lo[s_id])]
for r_ids, coords in elements:
if not r_ids or next(
(it for it in (model.getReaction(r_id)
for r_id in r_ids) if it), False):
(x, y), (w, h) = transform(coords, x_shift, y_shift,
scale_factor)
g = libsbgn.glyph(
class_=glyph_type,
id="%s_%s" %
(s_id, '_'.join(r_ids)) if r_ids else s_id,
compartmentRef=species.getCompartment())
g.set_label(
libsbgn.label(text=s_name,
bbox=libsbgn.bbox(
x + w * 0.1, y + h * 0.1, w * 0.8,
h * 0.8)))
g.set_bbox(libsbgn.bbox(x, y, w, h))
sbgn_map.add_glyph(g)
# glyph with ports (process)
for reaction in model.getListOfReactions():
r_id = reaction.getId()
if r_id in n2lo:
(x, y), (w, h) = transform(n2lo[r_id], x_shift, y_shift,
scale_factor)
g = libsbgn.glyph(class_=GlyphClass.PROCESS, id=r_id)
g.set_bbox(libsbgn.bbox(x, y, w, h))
rev = reaction.getReversible()
in_port = None
for s_id in (species_ref.getSpecies()
for species_ref in reaction.getListOfReactants()):
edge_id = "-".join(sorted((s_id, r_id)))
if edge_id in e2lo:
xy_list = e2lo[edge_id]
if not in_port:
port_x, port_y = shift(
scale(
xy_list[-2] if len(xy_list) > 2 else
xy_list[-1], scale_factor), x_shift, y_shift)
in_port = libsbgn.port(x=port_x,
y=port_y,
id="%s__in" % r_id)
g.add_port(in_port)
sref_id = s_id
if isinstance(n2lo[s_id], dict):
for r_ids in n2lo[s_id].keys():
if r_id in r_ids:
sref_id = "%s_%s" % (s_id, '_'.join(r_ids))
a = libsbgn.arc(
class_=ArcClass.PRODUCTION
if rev else ArcClass.CONSUMPTION,
target=sref_id if rev else in_port.get_id(),
source=in_port.get_id() if rev else sref_id,
id="a_%s_%s" % (s_id, r_id))
s_x, s_y = shift(scale(xy_list[0], scale_factor), x_shift,
y_shift)
a.set_start(
libsbgn.startType(x=in_port.get_x() if rev else s_x,
y=in_port.get_y() if rev else s_y))
a.set_end(
libsbgn.endType(x=s_x if rev else in_port.get_x(),
y=s_y if rev else in_port.get_y()))
sbgn_map.add_arc(a)
out_port = None
for s_id in (species_ref.getSpecies()
for species_ref in reaction.getListOfProducts()):
edge_id = "-".join(sorted((s_id, r_id)))
if edge_id in e2lo:
xy_list = e2lo[edge_id]
if not out_port:
port_x, port_y = shift(
scale(
xy_list[1] if len(xy_list) > 2 else xy_list[0],
scale_factor), x_shift, y_shift)
out_port = libsbgn.port(x=port_x,
y=port_y,
id="%s__out" % r_id)
g.add_port(out_port)
sref_id = s_id
if isinstance(n2lo[s_id], dict):
for r_ids in n2lo[s_id].keys():
if r_id in r_ids:
sref_id = "%s_%s" % (s_id, '_'.join(r_ids))
a = libsbgn.arc(class_=ArcClass.PRODUCTION,
target=sref_id,
source=out_port.get_id(),
id="a_%s_%s" % (r_id, s_id))
s_x, s_y = shift(scale(xy_list[-1], scale_factor), x_shift,
y_shift)
a.set_end(libsbgn.startType(x=s_x, y=s_y))
a.set_start(
libsbgn.endType(x=out_port.get_x(),
y=out_port.get_y()))
sbgn_map.add_arc(a)
sbgn_map.add_glyph(g)
# write everything to a file
sbgn.write_file(out_sbgn)