added polygon selection!!
This commit is contained in:
Marcel Paffrath
parent
07395802b7
commit
d78b0f1cff
@ -1,4 +1,6 @@
|
||||
import matplotlib.pyplot as plt
|
||||
import math
|
||||
import numpy as np
|
||||
plt.interactive(True)
|
||||
|
||||
class regions(object):
|
||||
@ -31,12 +33,14 @@ class regions(object):
|
||||
self._y0 = []
|
||||
self._x1 = []
|
||||
self._y1 = []
|
||||
self._polyx = []
|
||||
self._polyy = []
|
||||
self._allpicks = None
|
||||
self.shots_found = {}
|
||||
self.shots_for_deletion = {}
|
||||
self._generateList()
|
||||
|
||||
def _onselect(self, eclick, erelease):
|
||||
def _onselect_clicks(self, eclick, erelease):
|
||||
'eclick and erelease are matplotlib events at press and release'
|
||||
#print ' startposition : (%f, %f)' % (eclick.xdata, eclick.ydata)
|
||||
#print ' endposition : (%f, %f)' % (erelease.xdata, erelease.ydata)
|
||||
@ -46,16 +50,84 @@ class regions(object):
|
||||
y0 = min(eclick.ydata, erelease.ydata)
|
||||
y1 = max(eclick.ydata, erelease.ydata)
|
||||
|
||||
shots = self.findTracesInShotDict((x0, x1), (y0, y1))
|
||||
shots, numtraces = self.findTracesInShotDict((x0, x1), (y0, y1))
|
||||
print('Found %d traces in rectangle: %s' %(numtraces, shots))
|
||||
|
||||
key = self.getKey()
|
||||
self.shots_found[key] = {'shots': shots,
|
||||
'selection': 'rect',
|
||||
'xvalues': (x0, x1),
|
||||
'yvalues': (y0, y1)}
|
||||
self.markRectangle((x0, x1), (y0, y1), key)
|
||||
|
||||
def _onselect_verts(self, verts):
|
||||
x = verts[0][0]
|
||||
y = verts[0][1]
|
||||
self._polyx.append(x)
|
||||
self._polyy.append(y)
|
||||
|
||||
self.drawPolyLine()
|
||||
|
||||
def _onpress(self, event):
|
||||
if event.button == 3:
|
||||
self.disconnectPoly()
|
||||
|
||||
def getKey(self):
|
||||
if self.shots_found.keys() == []:
|
||||
key = 1
|
||||
else:
|
||||
key = max(self.shots_found.keys()) + 1
|
||||
return key
|
||||
|
||||
def drawPolyLine(self):
|
||||
x = self._polyx
|
||||
y = self._polyy
|
||||
if len(x) >= 2 and len(y) >= 2:
|
||||
plt.plot(x[-2:], y[-2:], 'k')
|
||||
|
||||
def drawLastPolyLine(self):
|
||||
x = self._polyx
|
||||
y = self._polyy
|
||||
if len(x) >= 2 and len(y) >= 2:
|
||||
plt.plot((x[-1], x[0]), (y[-1], y[0]), 'k')
|
||||
|
||||
def finishPolygon(self):
|
||||
self.drawLastPolyLine()
|
||||
x = self._polyx
|
||||
y = self._polyy
|
||||
self._polyx = []; self._polyy = []
|
||||
|
||||
key = self.getKey()
|
||||
self.markPolygon(x, y, key = key)
|
||||
|
||||
shots, numtraces = self.findTracesInPoly(x, y)
|
||||
self.shots_found[key] = {'shots': shots,
|
||||
'distbin': (x0, x1),
|
||||
'pickbin': (y0, y1)}
|
||||
self.markRegion((x0, x1), (y0, y1), key)
|
||||
'selection': 'poly',
|
||||
'xvalues': x,
|
||||
'yvalues': y}
|
||||
|
||||
print('Found %d traces in polygon: %s' %(numtraces, shots))
|
||||
|
||||
def markPolygon(self, x, y, key = None, color = 'grey', alpha = 0.1, linewidth = 1):
|
||||
from matplotlib.patches import Polygon
|
||||
poly = Polygon(np.array(zip(x, y)), color = color, alpha = alpha, lw = linewidth)
|
||||
self.ax.add_patch(poly)
|
||||
if key is not None:
|
||||
self.ax.text((min(x) + (max(x) - min(x)) / 2), (min(y) + (max(y) - min(y)) / 2), str(key))
|
||||
self.drawFigure()
|
||||
|
||||
def disconnectPoly(self):
|
||||
self.ax.figure.canvas.mpl_disconnect(self._cid)
|
||||
del self._cid
|
||||
self.finishPolygon()
|
||||
self._lasso.disconnect_events()
|
||||
print('disconnected poly selection\n')
|
||||
|
||||
def disconnectRect(self):
|
||||
self.ax.figure.canvas.mpl_disconnect(self._cid)
|
||||
del self._cid
|
||||
self._rectangle.disconnect_events()
|
||||
print('disconnected rectangle selection\n')
|
||||
|
||||
def chooseRectangles(self):
|
||||
'''
|
||||
@ -63,8 +135,21 @@ class regions(object):
|
||||
'''
|
||||
from matplotlib.widgets import RectangleSelector
|
||||
|
||||
print 'Select rectangle is active'
|
||||
return RectangleSelector(self.ax, self._onselect)
|
||||
print('Select rectangle is active')
|
||||
self._cid = self.ax.figure.canvas.mpl_connect('button_press_event', self._onpress)
|
||||
self._rectangle = RectangleSelector(self.ax, self._onselect_clicks)
|
||||
return self._rectangle
|
||||
|
||||
def choosePolygon(self):
|
||||
'''
|
||||
Activates matplotlib widget LassoSelector.
|
||||
'''
|
||||
from matplotlib.widgets import LassoSelector
|
||||
|
||||
print('Select polygon is active')
|
||||
self._cid = self.ax.figure.canvas.mpl_connect('button_press_event', self._onpress)
|
||||
self._lasso = LassoSelector(self.ax, self._onselect_verts)
|
||||
return self._lasso
|
||||
|
||||
def deselectLastSelection(self):
|
||||
if self.shots_found.keys() == []:
|
||||
@ -74,17 +159,23 @@ class regions(object):
|
||||
self.deselectSelection(key)
|
||||
|
||||
def deselectSelection(self, key, color = 'green', alpha = 0.1):
|
||||
try:
|
||||
if color is not None:
|
||||
self.markRegion(self.shots_found[key]['distbin'],
|
||||
self.shots_found[key]['pickbin'],
|
||||
key = key, color = color, alpha = alpha, linewidth = 0)
|
||||
value = self.shots_found.pop(key)
|
||||
print('Deselected selection number %d'% key)
|
||||
return
|
||||
except:
|
||||
if not key in self.shots_found.keys():
|
||||
print('No selection found.')
|
||||
return
|
||||
if color is not None:
|
||||
if self.shots_found[key]['selection'] == 'rect':
|
||||
self.markRectangle(self.shots_found[key]['xvalues'],
|
||||
self.shots_found[key]['yvalues'],
|
||||
key = key, color = color, alpha = alpha,
|
||||
linewidth = 1)
|
||||
elif self.shots_found[key]['selection'] == 'poly':
|
||||
self.markPolygon(self.shots_found[key]['xvalues'],
|
||||
self.shots_found[key]['yvalues'],
|
||||
key = key, color = color, alpha = alpha,
|
||||
linewidth = 1)
|
||||
value = self.shots_found.pop(key)
|
||||
print('Deselected selection number %d'% key)
|
||||
return
|
||||
|
||||
def _generateList(self):
|
||||
allpicks = []
|
||||
@ -101,7 +192,53 @@ class regions(object):
|
||||
def getShotsForDeletion(self):
|
||||
return self.shots_for_deletion
|
||||
|
||||
def findTracesInShotDict(self, (x0, x1), (y0, y1), picks = 'normal'):
|
||||
def findTracesInPoly(self, x, y, picks = 'normal', highlight = True):
|
||||
def dotproduct(v1, v2):
|
||||
return sum((a*b) for a, b in zip(v1, v2))
|
||||
|
||||
def getlength(v):
|
||||
return math.sqrt(dotproduct(v, v))
|
||||
|
||||
def getangle(v1, v2):
|
||||
return np.rad2deg(math.acos(dotproduct(v1, v2) / (getlength(v1) * getlength(v2))))
|
||||
|
||||
def insidePoly(x, y, pickX, pickY):
|
||||
angle = 0
|
||||
epsilon = 10e-8
|
||||
for index in range(len(x)):
|
||||
xval1 = x[index - 1]; yval1 = y[index - 1]
|
||||
xval2 = x[index]; yval2 = y[index]
|
||||
angle += getangle([xval1 - pickX, yval1 - pickY], [xval2 - pickX, yval2 - pickY])
|
||||
if 360 - epsilon <= angle <= 360 + epsilon: ### IMPROVE THAT??
|
||||
return True
|
||||
|
||||
if len(x) == 0 or len(y) == 0:
|
||||
print('No polygon defined.')
|
||||
return
|
||||
|
||||
shots_found = {}; numtraces = 0
|
||||
x0 = min(x); x1 = max(x)
|
||||
y0 = min(y); y1 = max(y)
|
||||
|
||||
shots, numtracesrect = self.findTracesInShotDict((x0, x1), (y0, y1), highlight = False)
|
||||
for shotnumber in shots.keys():
|
||||
shot = self.shot_dict[shotnumber]
|
||||
for traceID in shots[shotnumber]:
|
||||
if shot.getFlag(traceID) is not 0:
|
||||
pickX = shot.getDistance(traceID)
|
||||
pickY = shot.getPick(traceID)
|
||||
if insidePoly(x, y, pickX, pickY):
|
||||
if not shotnumber in shots_found.keys():
|
||||
shots_found[shotnumber] = []
|
||||
shots_found[shotnumber].append(traceID)
|
||||
if highlight == True:
|
||||
self.highlightPick(shot, traceID)
|
||||
numtraces += 1
|
||||
|
||||
self.drawFigure()
|
||||
return shots_found, numtraces
|
||||
|
||||
def findTracesInShotDict(self, (x0, x1), (y0, y1), picks = 'normal', highlight = True):
|
||||
'''
|
||||
Returns traces corresponding to a certain area in the plot with all picks over the distances.
|
||||
'''
|
||||
@ -116,10 +253,12 @@ class regions(object):
|
||||
if not shotnumber in shots_found.keys():
|
||||
shots_found[shotnumber] = []
|
||||
shots_found[shotnumber].append(traceID)
|
||||
if highlight == True:
|
||||
self.highlightPick(self.shot_dict[shotnumber], traceID)
|
||||
numtraces += 1
|
||||
|
||||
print('Found %d traces: %s' %(numtraces, shots_found))
|
||||
return shots_found
|
||||
self.drawFigure()
|
||||
return shots_found, numtraces
|
||||
|
||||
def highlightPick(self, shot, traceID, annotations = True):
|
||||
'''
|
||||
@ -197,11 +336,15 @@ class regions(object):
|
||||
|
||||
def markAllActiveRegions(self):
|
||||
for key in self.shots_found.keys():
|
||||
self.markRegion(self.shots_found[key]['distbin'],
|
||||
self.shots_found[key]['pickbin'], key = key)
|
||||
if self.shots_found[key]['selection'] == 'rect':
|
||||
self.markRectangle(self.shots_found[key]['xvalues'],
|
||||
self.shots_found[key]['yvalues'], key = key)
|
||||
if self.shots_found[key]['selection'] == 'poly':
|
||||
self.markPolygon(self.shots_found[key]['xvalues'],
|
||||
self.shots_found[key]['yvalues'], key = key)
|
||||
|
||||
|
||||
def markRegion(self, (x0, x1), (y0, y1), key = None, color = 'grey', alpha = 0.1, linewidth = 0.1):
|
||||
def markRectangle(self, (x0, x1), (y0, y1), key = None, color = 'grey', alpha = 0.1, linewidth = 1):
|
||||
'''
|
||||
Mark a rectangular region on the axes.
|
||||
'''
|
||||
|
||||
Loading…
Reference in New Issue
Block a user