amr/spirographs
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Working version!

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Had to get the canvas object to draw_idle() in order for it
to be refreshed. Now it works great! I might tweak the step size
for the sliders, as 0.1 can end up with weird, not quite complete
plots.
This commit is contained in:
A.M. Rowsell 2021-06-27 16:44:11 -04:00
commit d34d6d1ba1
Signed by: amr
GPG key ID: 0B6E2D8375CF79A9
2 changed files with 23 additions and 8 deletions
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1
spirographs.glade
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@ -136,6 +136,7 @@
<child> <child>
<object class="GtkViewport" id="plotViewport"> <object class="GtkViewport" id="plotViewport">
<property name="visible">True</property> <property name="visible">True</property>
<property name="app-paintable">True</property>
<property name="can-focus">False</property> <property name="can-focus">False</property>
<child> <child>
<placeholder/> <placeholder/>

30
spirographs.py
View file

@ -24,9 +24,19 @@ class spirographs:
self.distance = 4 self.distance = 4
self.highestTheta = (np.lcm(self.smallRadius, self.bigRadius)/self.bigRadius) * 2 * math.pi self.highestTheta = (np.lcm(self.smallRadius, self.bigRadius)/self.bigRadius) * 2 * math.pi
self.stepSize = self.highestTheta / 4096 self.stepSize = self.highestTheta / 4096
# update initial slider positions
bigRadiusAdjustment = builder.get_object('bigRadiusAdjustment')
smallRadiusAdjustment = builder.get_object('smallRadiusAdjustment')
distanceAdjustment = builder.get_object('distanceAdjustment')
bigRadiusAdjustment.set_value(self.bigRadius)
smallRadiusAdjustment.set_value(self.smallRadius)
distanceAdjustment.set_value(self.distance)
# create initial plot
self.recalcPoints() self.recalcPoints()
self.showPlot() self.showPlot()
def calcEpiX(self, theta): def calcEpiX(self, theta):
return ((self.bigRadius + self.smallRadius) * math.cos(theta)) - (self.distance * math.cos(((self.bigRadius + self.smallRadius)/(self.smallRadius))*theta)) return ((self.bigRadius + self.smallRadius) * math.cos(theta)) - (self.distance * math.cos(((self.bigRadius + self.smallRadius)/(self.smallRadius))*theta))
@ -67,20 +77,24 @@ class spirographs:
def showPlot(self): def showPlot(self):
viewport = builder.get_object('plotViewport') viewport = builder.get_object('plotViewport')
self.plotFigure = Figure(figsize=(5, 4), dpi=100) self.plotFigure = Figure(figsize=(5, 4), dpi=100)
self.subPlot1 = self.plotFigure.add_subplot() self.epiPlot, self.hypoPlot = self.plotFigure.subplots(1, 2)
#self.subPlot1.title = f"Epichondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}" self.epiPlot.set_title(f"Epichondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}")
self.subPlot1.plot(self.epiX, self.epiY) self.epiPlot.plot(self.epiX, self.epiY)
self.subPlot2 = self.plotFigure.add_subplot() self.hypoPlot.set_title(f"Hypochondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}")
#self.subPlot2.title = f"Hypochondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}" self.hypoPlot.plot(self.hypoX, self.hypoY)
self.subPlot2.plot(self.hypoX, self.hypoY)
self.canvas = FigureCanvas(self.plotFigure) self.canvas = FigureCanvas(self.plotFigure)
self.canvas.set_size_request(800, 600) self.canvas.set_size_request(800, 600)
viewport.add(self.canvas) viewport.add(self.canvas)
def updatePlot(self): def updatePlot(self):
self.subPlot1.plot(self.epiX, self.epiY) self.epiPlot.clear()
self.subPlot2.plot(self.hypoX, self.hypoY) self.hypoPlot.clear()
self.epiPlot.set_title(f"Epichondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}")
self.hypoPlot.set_title(f"Hypochondroid of {self.bigRadius}, {self.smallRadius}, {self.distance}")
self.epiPlot.plot(self.epiX, self.epiY)
self.hypoPlot.plot(self.hypoX, self.hypoY)
self.canvas.draw_idle()
builder = Gtk.Builder() builder = Gtk.Builder()
builder.add_from_file("spirographs.glade") builder.add_from_file("spirographs.glade")