def clear_func(widget):
global eqns
try:
if widget == clearf:
del graphcmd.graphs['f']
graphcmd.main('s', graphcmd.opt)
for widget in [fxinttext, fyinttext, fslopetext, fvalueoutput]:
widget.value(0)
else:
del graphcmd.graphs['g']
graphcmd.main('s', graphcmd.opt)
for widget in [gxinttext, gyinttext, gslopetext, gvalueoutput]:
widget.value(0)
except KeyError:
pass
graph.image(Fl_PNG_Image('graph.png'))
window.redraw()
def update_setting():
global flinecolor, glinecolor
optdict = {7: 'xmin', 8: 'xmax', 9: 'ymin', 10: 'ymax',
11: 'xscl', 12: 'yscl', 13: 'point', 14: 'tick',
15: 'drawaxes', 16: 'axes', 17: 'axescolor',
18: 'grid', 19: 'backg'}
newopt = {}
with open('config.txt') as config:
lcount = 0
for configline in config:
if lcount == 5:
colortup = configline.split(' : ')[1]
exec('flinecolor = ' + colortup, globals())
elif lcount == 6:
colortup = configline.split(' : ')[1]
exec('glinecolor = ' + colortup, globals())
elif lcount >= 7:
exec('change = ' + configline.split(' : ')[1])
newopt[optdict[lcount]] = change
lcount = lcount + 1
graphcmd.main('s', newopt)
def update_eqn(widget):
global eqn
try:
if widget in [finterbutton, fpointbutton, fgenbutton]:
if widget == finterbutton:
slope, inter = fintslope.value(), fintinter.value()
eqn = line.Linear('', [slope, inter])
elif widget == fpointbutton:
y1, x1 = fpointy1.value(), fpointx1.value()
eqn = line.Linear('p', [y1, fpointslope.value(), x1])
else:
a, b, c = fgena.value(), fgenb.value(), fgenc.value()
eqn = line.Linear('g', [a, b, c])
else:
if widget == ginterbutton:
slope, inter = gintslope.value(), gintinter.value()
eqn = line.Linear('', [slope, inter])
elif widget == gpointbutton:
y1, x1 = gpointy1.value(), gpointx1.value()
eqn = line.Linear('p', [y1, gpointslope.value(), x1])
else:
a, b, c = ggena.value(), ggenb.value(), ggenc.value()
eqn = line.Linear('g', [a, b, c])
except:
graph.label('Error: Check that coefficients are properly entered.')
graph.image(None)
graph.redraw()
return
if widget in [finterbutton, fpointbutton, fgenbutton]:
fxinttext.value(eqn.xint())
fyinttext.value(eqn.yint())
fslopetext.value(eqn.slope())
if widget != finterbutton:
fintslope.value(str(eqn.slope()))
fintinter.value(str(eqn.yint()))
if widget != fpointbutton:
coefs = [str(n) for n in eqn.pointform()]
fpointy1.value(coefs[0])
fpointslope.value(coefs[1])
fpointx1.value(coefs[2])
if widget != fgenbutton:
coefs = [str(n) for n in eqn.generalform()]
fgena.value(coefs[0])
fgenb.value(coefs[1])
fgenc.value(coefs[2])
else:
gxinttext.value(eqn.xint())
gyinttext.value(eqn.yint())
gslopetext.value(eqn.slope())
if widget != ginterbutton:
gintslope.value(str(eqn.slope()))
gintinter.value(str(eqn.yint()))
if widget != gpointbutton:
coefs = [str(n) for n in eqn.pointform()]
gpointy1.value(coefs[0])
gpointslope.value(coefs[1])
gpointx1.value(coefs[2])
if widget != ggenbutton:
coefs = [str(n) for n in eqn.generalform()]
ggena.value(coefs[0])
ggenb.value(coefs[1])
ggenc.value(coefs[2])
update_setting()
if widget in [finterbutton, fpointbutton, fgenbutton]:
graphcmd.graphs['f'] = (eqn, flinecolor)
else:
graphcmd.graphs['g'] = (eqn, glinecolor)
graphcmd.main('s', graphcmd.opt)
graph.label(None)
graph.image(Fl_PNG_Image('graph.png'))
if len(graphcmd.graphs) == 2:
eqna, eqnb = graphcmd.graphs['f'][0], graphcmd.graphs['g'][0]
solution.value(str(line.LinearSystem(eqna, eqnb).xint()))
window.redraw()
exec('glinecolor = ' + colortup, globals())
elif lcount >= 7:
exec('change = ' + configline.split(' : ')[1])
newopt[optdict[lcount]] = change
lcount = lcount + 1
graphcmd.main('s', newopt)
def setopt(widget, align, value, font=None):
widget.align(align)
widget.value(value)
if font is not None:
widget.labelfont(font)
graphcmd.main('i', 'graph.png')
update_setting()
window = Fl_Window(50, 50, 1250, 671, 'Linear Equation Analysis')
window.color(fl_rgb_color(247, 247, 247))
window.begin()
setbutton = Fl_Button(1160, 635, 80, 25, 'Settings')
setbutton.color(fl_rgb_color(230, 230, 230))
setbutton.callback(settings_window)
fxtext = Fl_Box(589, 20, 0, 0, 'f(x)')
fxtext.labelfont(FL_BOLD)
finttext = Fl_Box(637, 40, 50, 20, 'Slope-intercept form:\ty = ')
