def pix2xy(pad):
px=gPad.GetEventX()
py=gPad.GetEventY()
tl=[74,44]
tr=[1346,44]
br=[1346,401]
bl=[74,401]
x=int(float(px-tl[0])/(tr[0]-tl[0])*46)-23+1
y=int(float(py-tl[1])/(bl[1]-tl[1])*11)-5
if x<=0: x-=1
return [x,-y]
def __call__(self):
h = gPad.GetSelected()
if not h:
return
if not isinstance(h, TH2):
return
gPad.GetCanvas().FeedbackMode(kTRUE)
# erase old position and draw a line at current position
px = gPad.GetEventX()
py = gPad.GetEventY()
uxmin, uxmax = gPad.GetUxmin(), gPad.GetUxmax()
uymin, uymax = gPad.GetUymin(), gPad.GetUymax()
pxmin, pxmax = gPad.XtoAbsPixel(uxmin), gPad.XtoAbsPixel(uxmax)
pymin, pymax = gPad.YtoAbsPixel(uymin), gPad.YtoAbsPixel(uymax)
if self._old != None:
gVirtualX.DrawLine(pxmin, self._old[1], pxmax, self._old[1])
gVirtualX.DrawLine(self._old[0], pymin, self._old[0], pymax)
gVirtualX.DrawLine(pxmin, py, pxmax, py)
gVirtualX.DrawLine(px, pymin, px, pymax)
self._old = px, py
upx = gPad.AbsPixeltoX(px)
x = gPad.PadtoX(upx)
upy = gPad.AbsPixeltoY(py)
y = gPad.PadtoY(upy)
padsav = gPad
# create or set the display canvases
if not self._cX:
self._cX = TCanvas('c2', 'Projection Canvas in X', 730, 10, 700,
500)
else:
self._DestroyPrimitive('X')
if not self._cY:
self._cY = TCanvas('c3', 'Projection Canvas in Y', 10, 550, 700,
500)
else:
self._DestroyPrimitive('Y')
self.DrawSlice(h, y, 'Y')
self.DrawSlice(h, x, 'X')
padsav.cd()
def pix2xy(pad): px=gPad.GetEventX() py=gPad.GetEventY() # determined empirically (by clicking on canvas): tl=[71,79] tr=[709,44] br=[709,716] bl=[71,716] x=int(float(px-tl[0])/(tr[0]-tl[0])*22)-11 y=int(float(py-tl[1])/(bl[1]-tl[1])*22)-11 if x>=0: x+=1 if y>=0: y+=1 # swap y because pixel-coordinate inverted: y=-y # swap x to make it downstream view: x=-x return [x,y]
def __call__( self ):
h = self.hname
if not h:
return
if not isinstance( h, TH2 ):
return
gPad.GetCanvas().FeedbackMode( kTRUE )
event = gPad.GetEvent()
if (event==1): # left mouse click
self.projection = not self.projection
elif (event==12): # middle mouse click
self.logy = not self.logy
# erase old position and draw a line at current position
#(gPad coordinate system)
px = gPad.GetEventX()
py = gPad.GetEventY()
# min/max x values visible on the pad (xmin and xmax of the x-axis)
uxmin, uxmax = gPad.GetUxmin(), gPad.GetUxmax()
uymin, uymax = gPad.GetUymin(), gPad.GetUymax()
# same in pixels
pxmin, pxmax = gPad.XtoAbsPixel( uxmin ), gPad.XtoAbsPixel( uxmax )
pymin, pymax = gPad.YtoAbsPixel( uymin ), gPad.YtoAbsPixel( uymax )
# if self.projection:
# axis = h.GetYaxis()
# else:
# axis = h.GetXaxis()
scaleY = abs((pymax-pymin) / (uymax-uymin))
scaleX = abs((pxmax-pxmin) / (uxmax-uxmin))
width = 0.0 # arbitrary default value [cm]
if self._old:
width = self.range[1] - self.range[0]
ywidth = int(width * scaleY)
xwidth = int(width * scaleX)
if self._old != None:
if self.projection:
# gVirtualX.DrawBox( pxmin, self._old[1]-ywidth, pxmax, self._old[1], kSolid)
gVirtualX.DrawLine( pxmin, self._old[1], pxmax, self._old[1])
gVirtualX.DrawLine( pxmin, self._old[1]-ywidth, pxmax, self._old[1]-ywidth)
else:
# gVirtualX.DrawBox( self._old[0], pymin, self._old[0]+ywidth, pymax, kSolid )
gVirtualX.DrawLine( self._old[0], pymin, self._old[0], pymax)
gVirtualX.DrawLine( self._old[0]+xwidth, pymin, self._old[0]+xwidth, pymax)
# Normally these calls remove old lines, but we do not need them since we update the pad in the end of DrawSlice
# BUG: the lines disappear when the mouse does not move. This happens if this gPad.Update() is called. TODO: How to fix it?
# if self.projection:
# gVirtualX.DrawLine( pxmin, py, pxmax, py )
# gVirtualX.DrawLine( pxmin, py-ywidth, pxmax, py-ywidth )
# else:
# gVirtualX.DrawLine( px, pymin, px, pymax)
# gVirtualX.DrawLine( px+xwidth, pymin, px+xwidth, pymax)
if self.projection:
gPad.SetUniqueID(py)
else:
gPad.SetUniqueID(px)
self._old = px, py
upx = gPad.AbsPixeltoX( px )
x = gPad.PadtoX( upx )
upy = gPad.AbsPixeltoY( py )
y = gPad.PadtoY( upy )
padsav = gPad
# create or set the display canvases
if not self._cX:
self._cX = gPad.GetCanvas().GetPad(2)
else:
self._DestroyPrimitive( 'X' )
if not self._cY:
self._cY = gPad.GetCanvas().GetPad(2)
else:
self._DestroyPrimitive( 'Y' )
if self.projection:
self.range = self.DrawSlice( h, y, 'Y' )
else:
self.range = self.DrawSlice( h, x, 'X' )
padsav.cd()
def __call__(self):
h = self.hname
if not h:
return
if not isinstance(h, TH2):
return
gPad.GetCanvas().FeedbackMode(kTRUE)
event = gPad.GetEvent()
if (event == 1): # left mouse click
self.projection = not self.projection
elif (event == 12): # middle mouse click
self.logy = not self.logy
# erase old position and draw a line at current position
#(gPad coordinate system)
px = gPad.GetEventX()
py = gPad.GetEventY()
uxmin, uxmax = gPad.GetUxmin(), gPad.GetUxmax()
uymin, uymax = gPad.GetUymin(), gPad.GetUymax()
pxmin, pxmax = gPad.XtoAbsPixel(uxmin), gPad.XtoAbsPixel(uxmax)
pymin, pymax = gPad.YtoAbsPixel(uymin), gPad.YtoAbsPixel(uymax)
# if self.projection:
# axis = h.GetYaxis()
# else:
# axis = h.GetXaxis()
width = 1
if self._old != None:
if self.projection:
gVirtualX.DrawBox(pxmin, self._old[1] - width, pxmax,
self._old[1], kSolid)
else:
gVirtualX.DrawBox(self._old[0], pymin, self._old[0] + width,
pymax, kSolid)
if self.projection:
gVirtualX.DrawBox(pxmin, py, pxmax, py + width, kSolid)
else:
gVirtualX.DrawBox(px, pymin, px, pymax + width, kSolid)
self._old = px, py
upx = gPad.AbsPixeltoX(px)
x = gPad.PadtoX(upx)
upy = gPad.AbsPixeltoY(py)
y = gPad.PadtoY(upy)
padsav = gPad
# create or set the display canvases
if not self._cX:
self._cX = gPad.GetCanvas().GetPad(2)
else:
self._DestroyPrimitive('X')
if not self._cY:
self._cY = gPad.GetCanvas().GetPad(2)
else:
self._DestroyPrimitive('Y')
if self.projection:
self.DrawSlice(h, y, 'Y')
else:
self.DrawSlice(h, x, 'X')
padsav.cd()