ich habe ein Problem bei Zeichnen einer Grafik und finde den Fehler einfach nicht...
Ich möchte Pfeile under einem Stringabschnitt zeichnen. Überlappen mehrere Pfeile, so soll der nächste um 50 Positionen nach unten verschoben werden. Dies finde ich über die Farbe des Pixel der Start und Endpunkte der Pfeile heraus.
Leider funktioniert das ganze nur bedingt. Die Farbe werden korrekt gescheckt aber wenn der zweite Pfeil mit dem Ende in einen schon vorhandenen Pfeil gerät, wird die Position nicht verschoben...
Hier mal der Code (einfachhalber in das ScrolledWindow Example vom wxPython gepackt) und die nötigen Text Files:
Code: Alles auswählen
import wx
from itertools import izip
BUFFERED = 1
class MyCanvas(wx.ScrolledWindow):
def __init__(self, parent, id = -1, size = wx.DefaultSize):
wx.ScrolledWindow.__init__(self, parent, id, (0, 0), size=size,
style=wx.SUNKEN_BORDER)
self.lines = []
self.maxWidth = 50000
self.maxHeight = 1000
self.x = self.y = 0
self.curLine = []
self.drawing = False
self.SetBackgroundColour("WHITE")
self.SetVirtualSize((self.maxWidth, self.maxHeight))
self.SetScrollRate(20,20)
if BUFFERED:
self.buffer = wx.EmptyBitmap(self.maxWidth, self.maxHeight)
dc = wx.BufferedDC(None, self.buffer)
dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
dc.Clear()
self.DoDrawing(dc)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def getWidth(self):
return self.maxWidth
def getHeight(self):
return self.maxHeight
def OnPaint(self, event):
if BUFFERED:
dc = wx.BufferedPaintDC(self, self.buffer, wx.BUFFER_VIRTUAL_AREA)
else:
dc = wx.PaintDC(self)
self.PrepareDC(dc)
self.DoDrawing(dc)
def dict_laden(self, pfad):
d ={}
datei = file(pfad)
liste = datei.readlines()
for eintrag in liste:
l_eintrag = eintrag.split()
d[l_eintrag[0]] = l_eintrag[1]
datei.close()
return d
def rev_compl(self, primer):
nucl = {'A': 'T', 'C': 'G', 'T': 'A', 'G': 'C'}
liste = primer.split()
letters = list(primer)
letters.reverse()
letters = [nucl[base] for base in letters]
i = ''.join(letters)
return i
def DoDrawing(self, dc, printing=False):
dc.BeginDrawing()
dc.SetBackground(wx.Brush(self.GetBackgroundColour()))
dc.Clear()
dc.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, "Courier New"))
# Get data and arrows
d = self.dict_laden('arrow.txt')
seq = open('query_seq.txt', 'r')
seq = seq.readlines()
seq = str(seq)
seq = seq.replace('[', '')
seq = seq.replace(']', '')
seq = seq.replace("'", '')
seq = seq.upper()
# draw sequence
dc.DrawText(str(seq), 10, 10)
# get size of character
text = '-'
tw, th, space, z = dc.GetFullTextExtent(text)
# set starting positions
hight = 50
arrow = 30
zahl = 0
# for arrows in dict
for i in d.keys():
zahl = zahl + 1
# find arrow on sequence
pos = seq.find(i)
# if not found reverse complement the arrow
if pos == -1:
i = self.rev_compl(i)
pos = seq.find(i)
print len(i)
# calc length of the arrow
length = (len(i) * tw) - space
# calc start position of the arrow
pos_rec = (pos * tw) + tw
# calc end position of the arrow
end_pos = pos_rec + length
# Get colour before draw an arrow
# start position
pixel = dc.GetPixel(pos_rec, (hight+1))
# end position
pixel2 = dc.GetPixel(end_pos, (hight+10))
# if colour is red...
if pixel == (255, 0, 0, 255):
# ...increase hight >>> decrease arrow position
hight = hight + 50
# for the tip of the arrow
arrow = arrow + 50
# same for the end pixel
if pixel2 == (255, 0, 0, 255):
hight = hight + 50
arrow = arrow + 50
else:
#...keep hight if colour is white
hight = 50
arrow = 30
dc.SetBrush(wx.RED_BRUSH)
dc.SetPen(wx.RED_PEN)
# rectangle
dc.DrawRectangle(pos_rec, hight, (length-40), 20)
poly = [(10,10), (10,50), (10,50), (50,30), (50,30), (10,10)]
# arrow tip
dc.DrawPolygon(poly, (end_pos-50), arrow)
#dc.DrawText(str(zahl), (end_pos-((length/2)+30)), (arrow+20))
dc.DrawText(str(zahl), pos_rec, (hight+1))
dc.EndDrawing()
def runTest(frame, nb, log):
win = MyCanvas(nb)
return win
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])query_seq.txt
ggcccctccaccccaccccacccagtcgctgcggatacttgattctgctactcggccagcgatcgatctcgcctccgccatgagcgccaccagg
ccctccttcttcccctccaacaacaacaggaacaagcccgccacccggaaccccttcgactccgactcggacgacgacggcggcatggcccggc
gcggcccggcgcgggcctcgtccgtcccgacccccgccgcggggccggccagggcctcctcggccccgatccccgccgacgaggcggaccagcg
gggcgccctgttcggcgcgggccccgcgccgtccggcttcgcgtcctcctcctccgcggccgccaggggccggtacaggaacgacttccgcgac
tcgggcggcgtggaggcgcagtccgtgcaggagctcgagggctacgcggcctacaaggccgaggagaccacgcgccgggtcgacggctgcctcc
gggtcgccgaggagatgcgggacaccgcgtcaaagaccctgctccaggtgcaccagcagggccagcagatcaggcgcacccacgccatggccgt
cgacatcgaccaggatctctccaggggggaaaagctactaggtgatcttggtggtttgttttccaagaagtggaagccaaagaagaacggcgca
atcaggggccctatgctgaccagagacgattccttcatacgcaagggcagccatatggagcagaggcataaactggggctgtcagatcgtccgc
atcgatccaatgcacgccagttcctatctgaacccacatcaggccttgagaaagtcgaggtggagaaggcaaagcaggatgatggcctgtctga
ccttagcgacatactgacagagttgaaaggaatggccattgacatgggaactgagattgaggggcaaacaaaggatcttggtcatgcggagaag
gactttgacgaacttaactacagggtcaagggggcaaacgctcgaacacgtcgcctgcttggcagataggcaagaagcatatgttgttcaccag
aggattctgtgacactccttatcttctgcatttgctttcgtgggctgttaattcagatcattttgtgcataaaactctggttaggaaggtctgt
tggggagttgtatcagggtttattgtgtatatacgctagacgggcggttcgttttctatgttgcagttgtactacatttgctatggacagtaga
tacgtttgtattcggttttcttgttttgcaatcgctatgctgcaggaaagcac
arrow.txt
GGATACTTGATTCTGCTACTCGGCCAG SNAP34-WF33
CAACTCTGTCAGTATGTCGCTAAGGTC SNAP34-PW-1R
TGAACAACATATGCTTCTTGCCTATC SNAP32-OE-R2
GTCGCTGCGGATACTTGATTCTGC SNAP34-WF25
AATGGCCATTCCTTTCAACTCTG SNAP34-PW-2R
CCACCCAGTCGCTGCGGATAC SNAP34-WF18
ATGAGCGCCACCAGGCCCTC SNAP34-WF80
CCAGCGATCGATCTCGCCTC SNAP34-WF56
CACGAAAGCAAATGCAGAAG SNAP34-OE-R
AGTCGCTGCGGATACTTGAT SNAP34-OE-F
TTGCCCCTCAATCTCAGTTC SNAP34-DET-R
GGAGCAGAGGCATAAACTGG SNAP34-DET-F
GCAGCATAGCGATTGCAAAA HO12F09_3UTR-R
TATACGCTAGACGGGCGGTT HO12F09_3UTR-F
CAAGATCCTTTGTTTGCCCC HW07G11
TAACAGCCCACGAAAGCAAA HO12F09
CCACCCCACCCCACCCAG SNAP34-WF8
CTCCGCCATGAGCGCCAC SNAP34-WF73
GGCCCCTCCACCCCACC SNAP34-WF1
GCCATGAGCGCCACCAG SNAP34-OE-F2
Wäre nett, wenn mal jemand draufschauen könnte...
Wahrscheinlich hab ich wieder Tomaten auf den Augen
