def _make_output_folders():
"""
create the output folders
"""
failure = True
try_idx = 1
while failure:
try:
mkdir('generated_images' + str(try_idx))
failure = False
for i in range(len(TARGETS_EXPECTATION_PERCENTAGE)):
cond_str = '_expectancy_' + str(
TARGETS_EXPECTATION_PERCENTAGE[i]) + "_clutter_" + str(
DISTANCE_BETWEEN_IMAGES[i])
mkdir(
osp_join('generated_images' + str(try_idx),
cond_str + '_Color'))
mkdir(
osp_join('generated_images' + str(try_idx),
cond_str + '_Color_no_clutter'))
mkdir(
osp_join('generated_images' + str(try_idx),
cond_str + '_BW'))
except FileExistsError:
try_idx += 1
return try_idx
def _save_images(final_image, final_image_bw, final_image_no_clutter,
targets_im, targets_im_bw, image_num, try_idx):
cond_index = image_num // NUM_OF_IMAGES_TO_CREATE_PER_CONDITION
cond_str = '_expectancy_' + str(
TARGETS_EXPECTATION_PERCENTAGE[cond_index]) + "_clutter_" + str(
DISTANCE_BETWEEN_IMAGES[cond_index])
color_dir_path = osp_join("generated_images" + str(try_idx),
cond_str + "_Color")
color_no_clutter_dir_path = osp_join("generated_images" + str(try_idx),
cond_str + "_Color_no_clutter")
bw_dir_path = osp_join("generated_images" + str(try_idx), cond_str + "_BW")
final_image.convert('RGB').save(
osp_join(curdir, color_dir_path,
"image_" + str(image_num + 1) + ".png"), "PNG")
final_image_no_clutter.convert('RGB').save(
osp_join(curdir, color_no_clutter_dir_path,
"image_" + str(image_num + 1) + ".png"), "PNG")
final_image_bw.convert('LA').save(
osp_join(curdir, bw_dir_path,
"image_bw_" + str(image_num + 1) + ".png"))
targets_im_bw.convert('LA').save(
osp_join(curdir, bw_dir_path,
"targets_bw_" + str(image_num + 1) + ".png"))
targets_im.save(
osp_join(curdir, color_dir_path,
"targets_" + str(image_num + 1) + ".png"))
targets_im.save(
osp_join(curdir, color_no_clutter_dir_path,
"targets_" + str(image_num + 1) + ".png"))
def search(self, db, query, outputDir):
"""Run hmmsearch"""
# make the output dir and files
if self.mode != 'domtblout' and self.mode != 'tblout':
raise HMMMERModeError("Mode %s not compatible with search" % self.mode)
makeSurePathExists(outputDir)
txt_file = osp_join(outputDir, self.txtOut)
hmm_file = osp_join(outputDir, self.hmmOut)
# run hmmer!
system('hmmsearch --%s %s %s %s > %s' % (self.mode, txt_file, db, query, hmm_file))
def configuration(parent_package='', top_path=None):
from numpy.distutils.misc_util import Configuration
from numpy.distutils.system_info import get_info
from os.path import join as osp_join
config = Configuration('siesta', parent_package, top_path)
all_info = get_info('ALL')
sources = [
'free_unit.f90',
'write_hsx.f90',
'read_hsx.f90',
'read_dm.f90',
'write_dm.f90',
'read_hs.f90',
'read_tshs.f90',
'read_tsde.f90',
'write_tshs.f90',
'read_grid.f90',
'write_grid.f90',
'write_gf.f90',
]
config.add_extension('_siesta',
sources=[osp_join('src', s) for s in sources],
extra_info=all_info)
config.add_data_dir('tests')
config.make_config_py()
return config
def configuration(parent_package='', top_path=None):
from numpy.distutils.misc_util import Configuration
from numpy.distutils.system_info import get_info
import os
from os.path import join as osp_join
config = Configuration('siesta', parent_package, top_path)
all_info = get_info('ALL')
sources = [
'free_unit.f90',
'siesta_sc_off.f90',
'write_hsx.f90',
'read_hsx.f90',
'read_dm.f90',
'write_dm.f90',
'read_hs.f90',
'read_tshs.f90',
'read_tsde.f90',
'write_tshs.f90',
'read_grid.f90',
'write_grid.f90',
'write_gf.f90',
]
# Only install the extension if not on READTHEDOCS
if os.environ.get('READTHEDOCS', 'false').lower() != 'true':
config.add_extension('_siesta',
sources=[osp_join('src', s) for s in sources],
extra_info=all_info)
config.add_data_dir('tests')
config.make_config_py()
return config
def configuration(parent_package='', top_path=None):
from numpy.distutils.misc_util import Configuration
from numpy.distutils.system_info import get_info
from os.path import join as osp_join
config = Configuration('siesta', parent_package, top_path)
all_info = get_info('ALL')
sources = [
'free_unit.f90',
'write_hsx.f90',
'read_hsx_header.f90',
'read_hsx.f90',
'read_hs_header.f90',
'read_hs.f90',
'read_tshs_sizes.f90',
'read_tshs_geom.f90',
'read_tshs_cell.f90',
'read_tshs_es.f90',
'read_tshs_version.f90',
]
config.add_extension('_siesta',
sources=[osp_join('src', s) for s in sources],
extra_info=all_info)
config.make_config_py() # installs __config__.py
return config
def configuration(parent_package='', top_path=None):
from numpy.distutils.misc_util import Configuration
from numpy.distutils.system_info import get_info
import os
from os.path import join as osp_join
config = Configuration('siesta', parent_package, top_path)
all_info = get_info('ALL')
sources = [
'io_m.f90',
'siesta_sc_off.f90'
]
for f in ['hsx', 'dm', 'tshs', 'grid', 'gf', 'tsde']:
sources.extend([f + '_read.f90', f + '_write.f90'])
for f in ['hs', 'wfsx']:
sources.append(f + '_read.f90')
# Only install the extension if not on READTHEDOCS
if os.environ.get('READTHEDOCS', 'false').lower() != 'true':
config.add_extension('_siesta',
sources = [osp_join('_src', s) for s in sources],
extra_info = all_info)
config.add_data_dir('tests')
config.make_config_py()
return config
def _save_images_with_roi(final_images_with_roi,
final_images_no_clutter_with_roi,
final_images_bw_with_roi, image_num, try_idx):
cond_index = image_num // NUM_OF_IMAGES_TO_CREATE_PER_CONDITION
cond_str = '_expectancy_' + str(
TARGETS_EXPECTATION_PERCENTAGE[cond_index]) + "_clutter_" + str(
DISTANCE_BETWEEN_IMAGES[cond_index])
color_dir_path = osp_join("generated_images" + str(try_idx),
cond_str + "_Color")
color_no_clutter_dir_path = osp_join("generated_images" + str(try_idx),
cond_str + "_Color_no_clutter")
bw_dir_path = osp_join("generated_images" + str(try_idx), cond_str + "_BW")
for i, image in enumerate(final_images_with_roi):
image.convert('RGB').save(
osp_join(
curdir, color_dir_path, "image_" + str(image_num + 1) +
"_with_roi_" + str(i + 1) + ".png"), "PNG")
for i, image in enumerate(final_images_no_clutter_with_roi):
image.convert('RGB').save(
osp_join(
curdir, color_no_clutter_dir_path,
"image_" + str(image_num + 1) + "_no_clutter_with_roi_" +
str(i + 1) + ".png"), "PNG")
for i, image in enumerate(final_images_bw_with_roi):
image.convert('RGB').save(
osp_join(
curdir, bw_dir_path, "image_bw_" + str(image_num + 1) +
"_with_roi_" + str(i + 1) + ".png"), "PNG")
def _create_locations_xl(locations_list, images, try_idx, image_num,
categories_dict):
doc = xl.Workbook(
osp_join(curdir, "generated_images" + str(try_idx),
'target_locations' + str(image_num + 1) + '.xlsx'))
sheet = doc.add_worksheet('target locations')
sheet.write('A1', "Name")
sheet.write('B1', "Target")
sheet.write('C1', "Category")
sheet.write('D1', "X")
sheet.write('E1', "Y")
for i, location in enumerate(locations_list):
category = images[i].info[RELEVANT_CATEGORY_INFO_NAME2] + '_' + images[i].info[RELEVANT_CATEGORY_INFO_NAME1] \
if RELEVANT_CATEGORY_INFO_NAME1 in images[i].info else images[i].info[RELEVANT_CATEGORY_INFO_NAME2]
sheet.write('A' + str(i + 2), images[i].info['filename'])
sheet.write('B' + str(i + 2), 1 if images[i].info['target'] else 0)
sheet.write('C' + str(i + 2), category)
sheet.write('D' + str(i + 2), location[0])
sheet.write('E' + str(i + 2), location[1])
doc.close()
def _load_images(images_path):
"""
loads images from chosen directory, separates them into targets and distractors
:param images_path: path to image directory
:return: list of: resized distractors list, target images list, original size targets lists
"""
distractor_images_dict = dict()
not_resized_targets = []
targets = []
categories_index = 1
categories_dict = dict()
image_names_list = [
str(x) for x in listdir(images_path) if x[-3:] == "png"
]
for image_name in image_names_list:
im = Image.open(osp_join(images_path, image_name)).convert('RGBA')
_add_info_to_image(im, image_name)
key = im.info[RELEVANT_CATEGORY_INFO_NAME2] + '_' + im.info[
RELEVANT_CATEGORY_INFO_NAME1] \
if RELEVANT_CATEGORY_INFO_NAME1 in im.info else im.info[
RELEVANT_CATEGORY_INFO_NAME2]
if key not in categories_dict:
categories_dict[key] = categories_index
categories_index += 1
im.info["cat_num"] = categories_dict[key]
if image_name in TARGET_CATEGORIES:
targets.append(im)
not_resized_targets.append(im)
else:
if key in distractor_images_dict:
distractor_images_dict[key].append(im)
else:
distractor_images_dict[key] = [im]
# print("equalizing images...")
# distractor_images_dict, targets = _equalize_images(distractor_images_dict, targets)
print("resizing images...")
_resize_images(distractor_images_dict, targets)
print("Categoriy mapping: ", categories_dict)
return distractor_images_dict, targets, not_resized_targets, categories_dict
def configuration(parent_package="", top_path=None):
from numpy.distutils.misc_util import Configuration
from numpy.distutils.system_info import get_info
from os.path import join as osp_join
config = Configuration("siesta", parent_package, top_path)
all_info = get_info("ALL")
sources = [
"free_unit.f90",
"write_hsx.f90",
"read_hsx_header.f90",
"read_hsx.f90",
"read_hs_header.f90",
"read_hs.f90",
"read_tshs_sizes.f90",
"read_tshs_geom.f90",
"read_tshs_cell.f90",
"read_tshs_es.f90",
"read_tshs_version.f90",
]
config.add_extension("_siesta", sources=[osp_join("src", s) for s in sources], extra_info=all_info)
config.make_config_py() # installs __config__.py
return config
def __init__(self, c, title='Z-editor'):
# pylint: disable=too-many-locals
global TAB2SPACES
super().__init__()
QWidget().__init__()
self.c = c
self.p = c.p
self.v = c.p.v
self.host_id = c.p.gnx
w = c.frame.body.wrapper
self.host_editor = w.widget
self.switching = False
self.closing = False
self.reloadSettings()
# The rendering pane can be either a QWebView or a QTextEdit
# depending on the features desired
if not QWebView: # Until Qt6 has a QWebEngineView, force QTextEdit
self.render_pane_type = NAV_VIEW
if self.render_pane_type == NAV_VIEW:
self.render_widget = QTextEdit
else:
self.render_widget = QWebView
self.render_pane_type = BROWSER_VIEW
self.editor = QTextEdit()
browser = self.browser = self.render_widget()
wrapper = qt_text.QTextEditWrapper(self.editor, name='zwin', c=c)
c.k.completeAllBindingsForWidget(wrapper)
#@+<<set stylesheet paths>>
#@+node:tom.20210604170628.1: *4* <<set stylesheet paths>>
self.editor_csspath = ''
self.rst_csspath = ''
home = g.app.loadManager.computeHomeDir()
cssdir = osp_join(home, '.leo', 'css')
#dict_ = g.app.loadManager.globalSettingsDict
#is_dark = dict_.get_setting('color-theme-is-dark')
is_dark = is_body_dark(self.c)
if is_dark:
self.editor_csspath = osp_join(cssdir, EDITOR_STYLESHEET_DARK_FILE)
self.rst_csspath = osp_join(cssdir,
RST_CUSTOM_STYLESHEET_DARK_FILE)
else:
self.editor_csspath = osp_join(cssdir,
EDITOR_STYLESHEET_LIGHT_FILE)
self.rst_csspath = osp_join(cssdir,
RST_CUSTOM_STYLESHEET_LIGHT_FILE)
if g.isWindows:
self.editor_csspath = self.editor_csspath.replace('/', '\\')
self.rst_csspath = self.rst_csspath.replace('/', '\\')
else:
self.editor_csspath = self.editor_csspath.replace('\\', '/')
self.rst_csspath = self.rst_csspath.replace('\\', '/')
#@-<<set stylesheet paths>>
#@+<<set stylesheets>>
#@+node:tom.20210615101103.1: *4* <<set stylesheets>>
# Check if editor stylesheet file exists. If so,
# we cache its contents.
if exists(self.editor_csspath):
with open(self.editor_csspath, encoding=ENCODING) as f:
self.editor_style = f.read()
else:
self.editor_style = EDITOR_STYLESHEET_DARK if is_dark \
else EDITOR_STYLESHEET_LIGHT
# If a stylesheet exists for RsT, we cache its contents.
self.rst_stylesheet = None
if exists(self.rst_csspath):
with open(self.rst_csspath, encoding=ENCODING) as f:
self.rst_stylesheet = f.read()
else:
self.rst_stylesheet = RST_STYLESHEET_DARK if is_dark \
else RST_STYLESHEET_LIGHT
#@-<<set stylesheets>>
#@+<<set up editor>>
#@+node:tom.20210602172856.1: *4* <<set up editor>>
self.doc = self.editor.document()
self.editor.setWordWrapMode(WrapMode.WrapAtWordBoundaryOrAnywhere) # pylint: disable=no-member
# Adjust editor stylesheet color to match body fg, bg
fg, bg = get_body_colors(self.c)
css = change_css_prop(self.editor_style, 'color', fg)
css = change_css_prop(css, 'background', bg)
self.editor_style = css
self.editor.setStyleSheet(css)
colorizer = leoColorizer.make_colorizer(c, self.editor)
colorizer.highlighter.setDocument(self.doc)
# Try to get tab width from the host's body
# Used when writing edits back to host
# "tabwidth" directive ought to be in first six lines
lines = self.p.v.b.split('\n', 6)
for line in lines:
if line.startswith('@tabwidth') and line.find(' ') > 0:
tabfield = line.split()[1]
TAB2SPACES = abs(int(tabfield))
break
# Make tabs line up with 4 spaces (at least approximately)
self.editor.setTabStopDistance(TABWIDTH)
if self.render_pane_type == NAV_VIEW:
# Different stylesheet mechanism if we are a QTextEdit
stylesheet = RST_STYLESHEET_DARK if is_dark else RST_STYLESHEET_LIGHT
browser.setReadOnly(True)
browser_doc = browser.document()
browser_doc.setDefaultStyleSheet(stylesheet)
#@-<<set up editor>>
#@+<<set up render button>>
#@+node:tom.20210602173354.1: *4* <<set up render button>>
self.render_button = QPushButton("Rendered <--> Plain")
self.render_button.clicked.connect(self.switch_and_render)
b_style = RENDER_BTN_STYLESHEET_DARK if is_dark \
else RENDER_BTN_STYLESHEET_LIGHT
self.render_button.setStyleSheet(b_style)
#@-<<set up render button>>
#@+<<build central widget>>
#@+node:tom.20210528235126.1: *4* <<build central widget>>
self.stacked_widget = QStackedWidget()
self.stacked_widget.insertWidget(EDITOR, self.editor)
self.stacked_widget.insertWidget(BROWSER, self.browser)
layout = QVBoxLayout()
layout.addWidget(self.render_button)
layout.addWidget(self.stacked_widget)
layout.setContentsMargins(0, 0, 0, 0)
self.central_widget = central_widget = QWidget()
central_widget.setLayout(layout)
self.setCentralWidget(central_widget)
#@-<<build central widget>>
#@+<<set geometry>>
#@+node:tom.20210528235451.1: *4* <<set geometry>>
Y_ = Y + (len(instances) % 10) * DELTA_Y
self.setGeometry(QtCore.QRect(X, Y_, W, H))
#@-<<set geometry>>
#@+<<set window title>>
#@+node:tom.20210531235412.1: *4* <<set window title>>
# Show parent's title-->our title, our gnx
ph = ''
parents_ = list(c.p.parents())
if parents_:
ph = parents_[0].h + '-->'
self.setWindowTitle(f'{ph}{c.p.h} {c.p.gnx}')
#@-<<set window title>>
self.render_kind = EDITOR
self.handlers = [('idle', self.update)]
self._register_handlers()
self.current_text = c.p.b
self.editor.setPlainText(self.current_text)
# Load docutils without rendering anything real
# Avoids initial delay when switching to RsT the first time.
if got_docutils:
dummy = publish_string('dummy',
writer_name='html').decode(ENCODING)
self.browser.setHtml(dummy)
central_widget.keyPressEvent = self.keyPressEvent
self.show()
def extractReads(self, bamFiles,
prefix,
targets,
combineBams=False,
pairsOnly=False,
combine=False,
shuffle=False,
largeFiles=False,
headersOnly = False,
dontTrustSamFlags=True,
folder='',
verbose=True):
"""Extract reads from BAM files
targets is a hash of type:
{ reference_name : bid }
If bid == -1 then there is only one bin. This option is used by the command line
caller so you can extract using a normal list
"""
# work out which files have been opened before so we don't nuke stuff!
opened_files = {}
if prefix != '':
prefix = "_"+prefix
# get a collection of storage points
read_storage = {}
bam_count = 0
num_bams = len(bamFiles)
for bf in bamFiles:
seen_reads = {}
read_storage[bam_count] = {}
for bid in targets.values():
read_storage[bam_count][bid] = [[],[],[]] # paired1, paired2, singles
try:
bam_file = pysam.Samfile(bf, 'rb')
if verbose:
print " Parsing BAM '%s' (%d of %d)" % (getBamDescriptor(bf), (bam_count+1), num_bams)
# use these to work out if we need quality scores or not
w_qual = 0
wo_qual = 0
# now get the reads associated with each target
for reference, length in zip(bam_file.references, bam_file.lengths):
rl = ReadLoader()
bam_file.fetch(reference, 0, length, callback = rl )
for alignedRead in rl.alignedReads:
(query, end) = self.splitReadheader(alignedRead, dontTrustSamFlags=dontTrustSamFlags)
# we have basically thrown out all pairing information here
# so we make some assumptions:
#
# The first read we see in a pair is the first read
# We trust the reversed flag
# We don't mess with the relative orientation that follows
#
if query in seen_reads:
# get the raw reads
if headersOnly:
# no need to store all the information as we'll just be nuking it anyway
read1 = alignedRead.qname
read2 = seen_reads[query][0].qname
else:
if seen_reads[query][0].is_reverse:
seen_read = (seen_reads[query][0].qname, self.revComp(seen_reads[query][0].seq), seen_reads[query][0].qual)
else:
seen_read = (seen_reads[query][0].qname, seen_reads[query][0].seq, seen_reads[query][0].qual)
if alignedRead.is_reverse:
align_read = (alignedRead.qname, self.revComp(alignedRead.seq), alignedRead.qual)
else:
align_read = (alignedRead.qname, alignedRead.seq, alignedRead.qual)
# work out which is the first in the pair and which is the second
if end == 1:
read1 = align_read
read2 = seen_read
else:
read1 = seen_read
read2 = align_read
# check for quality info
if read1[2] is None:
wo_qual += 1
else:
w_qual += 1
# put them in the storage
try:
bid1 = targets[bam_file.getrname(alignedRead.tid)]
read_storage[bam_count][bid1][0].append(read1)
read_storage[bam_count][bid1][1].append(read2)
except KeyError:
pass
try:
bid2 = targets[bam_file.getrname(seen_reads[query][0].tid)]
if bid2 != bid1:
read_storage[bam_count][bid2][0].append(read1)
read_storage[bam_count][bid2][1].append(read2)
except KeyError:
pass
# delete this guy so we can determine who the pairs are at the end
del seen_reads[query]
else:
seen_reads[query] = (alignedRead, end)
for ar in seen_reads:
alignedRead = seen_reads[ar][0]
if headersOnly:
read = alignedRead.qname
else:
if alignedRead.is_reverse:
read = (alignedRead.qname, self.revComp(alignedRead.seq), alignedRead.qual)
else:
read = (alignedRead.qname, alignedRead.seq, alignedRead.qual)
try:
bid = targets[bam_file.getrname(alignedRead.tid)]
read_storage[bam_count][bid][2].append(read)
except KeyError:
pass
bam_file.close()
# now we can write to file
# work out file extension
has_qual = w_qual > wo_qual
if headersOnly:
extension = 'headers'
shuffle = True # force everything into one file
pairsOnly = True
else:
if has_qual:
extension = "fq"
else:
extension = "fa"
# work out compression
if largeFiles:
fopen = open
else:
fopen = gzip.open
extension += '.gz'
# get a basename
if combineBams:
# always use the same file
base_name = "extracted"
else:
# need a different base name for each bam
base_name = getBamDescriptor(bf)
if folder == '':
# use the bam file's folder
base_name = getBamStem(bf)
else:
makeSurePathExists(folder)
base_name = osp_join(folder, base_name)
unique_bids = {}
for bid in targets.values():
try:
unique_bids[bid] += 1
except KeyError:
unique_bids[bid] = 1
pretty_counter = 0
print " ",
for bid in unique_bids:
print ".",
sys.stdout.flush()
pretty_counter += 1
if pretty_counter > 79:
pretty_counter = 0
print "\n ",
if bid == -1:
# single bin, no need to be fancy
if shuffle:
# if we are going to shuffle reads then we don't need
# to open a second file handle
read1_fh = self.openFileCorrectly("%s%s.%s" % (base_name, prefix, extension), fopen, opened_files)
read2_fh = read1_fh
else:
read1_fh = self.openFileCorrectly("%s%s_1.%s" % (base_name, prefix, extension), fopen, opened_files)
read2_fh = self.openFileCorrectly("%s%s_2.%s" % (base_name, prefix, extension), fopen, opened_files)
else:
if shuffle:
read1_fh = self.openFileCorrectly("%s%s_BIN_%d.%s" % (base_name, prefix, bid, extension), fopen, opened_files)
read2_fh = read1_fh
else:
read1_fh = self.openFileCorrectly("%s%s_BIN_%d_1.%s" % (base_name, prefix, bid, extension), fopen, opened_files)
read2_fh = self.openFileCorrectly("%s%s_BIN_%d_2.%s" % (base_name, prefix, bid, extension), fopen, opened_files)
close_unpaired_file = False
if not pairsOnly:
# we need to write the unpaired guys somewhere
if combine and shuffle:
# we can just add them to the end of read1_fh
unpaired_fh = read1_fh
else:
# either the user wanted things separate or they chose
# not to shuffle, either way a new fh is needed
close_unpaired_file = True
if bid == -1:
unpaired_fh = self.openFileCorrectly("%s%s_unpaired.%s" % (base_name, prefix, extension), fopen, opened_files)
else:
unpaired_fh = self.openFileCorrectly("%s%s_BIN_%d_unpaired.%s" % (base_name, prefix, bid, extension), fopen, opened_files)
# now we print
if headersOnly:
headers = {} # pipe into a hash first so we don't get dupes
for i in range(len(read_storage[bam_count][bid][0])):
headers[read_storage[bam_count][bid][0][i]] = True
headers[read_storage[bam_count][bid][1][i]] = True
for i in range(len(read_storage[bam_count][bid][2])):
headers[read_storage[bam_count][bid][2][i]] = True
for header in headers:
read1_fh.write(header+"\n")
else:
for i in range(len(read_storage[bam_count][bid][0])):
read1_fh.write(self.formatRead(read_storage[bam_count][bid][0][i], has_qual))
read2_fh.write(self.formatRead(read_storage[bam_count][bid][1][i], has_qual))
if not pairsOnly:
for i in range(len(read_storage[bam_count][bid][2])):
unpaired_fh.write(self.formatRead(read_storage[bam_count][bid][2][i], has_qual))
read1_fh.close()
if not shuffle:
read2_fh.close()
if close_unpaired_file:
unpaired_fh.close()
print "\n",
except:
print "Unable to open BAM file",bf,"-- did you supply a SAM file instead?"
raise
bam_count += 1
def extractReads(self,
bamFiles,
prefix,
targets,
combineBams=False,
pairsOnly=False,
combine=False,
shuffle=False,
largeFiles=False,
headersOnly=False,
dontTrustSamFlags=True,
folder='',
verbose=True):
"""Extract reads from BAM files
targets is a hash of type:
{ reference_name : bid }
If bid == -1 then there is only one bin. This option is used by the command line
caller so you can extract using a normal list
"""
# work out which files have been opened before so we don't nuke stuff!
opened_files = {}
if prefix != '':
prefix = "_" + prefix
# get a collection of storage points
read_storage = {}
bam_count = 0
num_bams = len(bamFiles)
for bf in bamFiles:
seen_reads = {}
read_storage[bam_count] = {}
for bid in targets.values():
read_storage[bam_count][bid] = [[], [], []
] # paired1, paired2, singles
try:
bam_file = pysam.Samfile(bf, 'rb')
if verbose:
print " Parsing BAM '%s' (%d of %d)" % (
getBamDescriptor(bf), (bam_count + 1), num_bams)
# use these to work out if we need quality scores or not
w_qual = 0
wo_qual = 0
# now get the reads associated with each target
for reference, length in zip(bam_file.references,
bam_file.lengths):
rl = ReadLoader()
bam_file.fetch(reference, 0, length, callback=rl)
for alignedRead in rl.alignedReads:
(query, end) = self.splitReadheader(
alignedRead, dontTrustSamFlags=dontTrustSamFlags)
# we have basically thrown out all pairing information here
# so we make some assumptions:
#
# The first read we see in a pair is the first read
# We trust the reversed flag
# We don't mess with the relative orientation that follows
#
if query in seen_reads:
# get the raw reads
if headersOnly:
# no need to store all the information as we'll just be nuking it anyway
read1 = alignedRead.qname
read2 = seen_reads[query][0].qname
else:
if seen_reads[query][0].is_reverse:
seen_read = (seen_reads[query][0].qname,
self.revComp(
seen_reads[query][0].seq),
seen_reads[query][0].qual)
else:
seen_read = (seen_reads[query][0].qname,
seen_reads[query][0].seq,
seen_reads[query][0].qual)
if alignedRead.is_reverse:
align_read = (alignedRead.qname,
self.revComp(
alignedRead.seq),
alignedRead.qual)
else:
align_read = (alignedRead.qname,
alignedRead.seq,
alignedRead.qual)
# work out which is the first in the pair and which is the second
if end == 1:
read1 = align_read
read2 = seen_read
else:
read1 = seen_read
read2 = align_read
# check for quality info
if read1[2] is None:
wo_qual += 1
else:
w_qual += 1
# put them in the storage
try:
bid1 = targets[bam_file.getrname(
alignedRead.tid)]
read_storage[bam_count][bid1][0].append(read1)
read_storage[bam_count][bid1][1].append(read2)
except KeyError:
pass
try:
bid2 = targets[bam_file.getrname(
seen_reads[query][0].tid)]
if bid2 != bid1:
read_storage[bam_count][bid2][0].append(
read1)
read_storage[bam_count][bid2][1].append(
read2)
except KeyError:
pass
# delete this guy so we can determine who the pairs are at the end
del seen_reads[query]
else:
seen_reads[query] = (alignedRead, end)
for ar in seen_reads:
alignedRead = seen_reads[ar][0]
if headersOnly:
read = alignedRead.qname
else:
if alignedRead.is_reverse:
read = (alignedRead.qname,
self.revComp(alignedRead.seq),
alignedRead.qual)
else:
read = (alignedRead.qname, alignedRead.seq,
alignedRead.qual)
try:
bid = targets[bam_file.getrname(alignedRead.tid)]
read_storage[bam_count][bid][2].append(read)
except KeyError:
pass
bam_file.close()
# now we can write to file
# work out file extension
has_qual = w_qual > wo_qual
if headersOnly:
extension = 'headers'
shuffle = True # force everything into one file
pairsOnly = True
else:
if has_qual:
extension = "fq"
else:
extension = "fa"
# work out compression
if largeFiles:
fopen = open
else:
fopen = gzip.open
extension += '.gz'
# get a basename
if combineBams:
# always use the same file
base_name = "extracted"
else:
# need a different base name for each bam
base_name = getBamDescriptor(bf)
if folder == '':
# use the bam file's folder
base_name = getBamStem(bf)
else:
makeSurePathExists(folder)
base_name = osp_join(folder, base_name)
unique_bids = {}
for bid in targets.values():
try:
unique_bids[bid] += 1
except KeyError:
unique_bids[bid] = 1
pretty_counter = 0
print " ",
for bid in unique_bids:
print ".",
sys.stdout.flush()
pretty_counter += 1
if pretty_counter > 79:
pretty_counter = 0
print "\n ",
if bid == -1:
# single bin, no need to be fancy
if shuffle:
# if we are going to shuffle reads then we don't need
# to open a second file handle
read1_fh = self.openFileCorrectly(
"%s%s.%s" % (base_name, prefix, extension),
fopen, opened_files)
read2_fh = read1_fh
else:
read1_fh = self.openFileCorrectly(
"%s%s_1.%s" % (base_name, prefix, extension),
fopen, opened_files)
read2_fh = self.openFileCorrectly(
"%s%s_2.%s" % (base_name, prefix, extension),
fopen, opened_files)
else:
if shuffle:
read1_fh = self.openFileCorrectly(
"%s%s_BIN_%d.%s" %
(base_name, prefix, bid, extension), fopen,
opened_files)
read2_fh = read1_fh
else:
read1_fh = self.openFileCorrectly(
"%s%s_BIN_%d_1.%s" %
(base_name, prefix, bid, extension), fopen,
opened_files)
read2_fh = self.openFileCorrectly(
"%s%s_BIN_%d_2.%s" %
(base_name, prefix, bid, extension), fopen,
opened_files)
close_unpaired_file = False
if not pairsOnly:
# we need to write the unpaired guys somewhere
if combine and shuffle:
# we can just add them to the end of read1_fh
unpaired_fh = read1_fh
else:
# either the user wanted things separate or they chose
# not to shuffle, either way a new fh is needed
close_unpaired_file = True
if bid == -1:
unpaired_fh = self.openFileCorrectly(
"%s%s_unpaired.%s" %
(base_name, prefix, extension), fopen,
opened_files)
else:
unpaired_fh = self.openFileCorrectly(
"%s%s_BIN_%d_unpaired.%s" %
(base_name, prefix, bid, extension), fopen,
opened_files)
# now we print
if headersOnly:
headers = {
} # pipe into a hash first so we don't get dupes
for i in range(len(read_storage[bam_count][bid][0])):
headers[read_storage[bam_count][bid][0][i]] = True
headers[read_storage[bam_count][bid][1][i]] = True
for i in range(len(read_storage[bam_count][bid][2])):
headers[read_storage[bam_count][bid][2][i]] = True
for header in headers:
read1_fh.write(header + "\n")
else:
for i in range(len(read_storage[bam_count][bid][0])):
read1_fh.write(
self.formatRead(
read_storage[bam_count][bid][0][i],
has_qual))
read2_fh.write(
self.formatRead(
read_storage[bam_count][bid][1][i],
has_qual))
if not pairsOnly:
for i in range(len(
read_storage[bam_count][bid][2])):
unpaired_fh.write(
self.formatRead(
read_storage[bam_count][bid][2][i],
has_qual))
read1_fh.close()
if not shuffle:
read2_fh.close()
if close_unpaired_file:
unpaired_fh.close()
print "\n",
except:
print "Unable to open BAM file", bf, "-- did you supply a SAM file instead?"
raise
bam_count += 1