Display Y Title issue

[christophe]

Hi,

I ve changed a standard example to display X and Y title.

I see the X but not the Y.

What goes wrong ?

W7 Pro

Python 3.6

Chaco 4.8

Code :

from numpy import linspace, sin
from traits.api import HasTraits, Instance
from traitsui.api import View, Item
from chaco.api import Plot, ArrayPlotData
from enable.api import ComponentEditor

class LinePlot(HasTraits):
    plot = Instance(Plot)

    traits_view = View(
        Item('plot',editor=ComponentEditor(), show_label=False),
        width=500, height=500, resizable=True, title="Chaco Plot")

    def _plot_default(self):
        x = linspace(-14, 14, 100)
        y = sin(x) * x**3
        plotdata = ArrayPlotData(x=x, y=y)

        plot = Plot(plotdata)
        plot.plot(("x", "y"), type="line", color="blue")
        plot.title = "sin(x) * x^3"
       
        plot.x_axis.title = "X AXIS"
        plot.y_axis.title = "Y AXIS"
       
        return plot

if __name__ == "__main__":
    LinePlot().configure_traits()

[Sai Rahul Poruri]

Hey Christophe,

Thanks for reporting this buggy behavior.

This looks like a bug in chaco. I was able to reproduce the bug on Windows 10 Pro. I opened a ticket - https://github.com/enthought/chaco/issues/564 - to track this issue on the chaco GitHub repository. 

Cheers,

Rahul.

[Tim Diller]

Christophe,

I'd like to add to Rahul's comment.  The Title is there, but it's off the left side of the screen.  I ran the code on a MacBook and saw just a tiny bit of the title showing.

The short-term fix is to adjust plot.padding_left to create more space. On my system, setting the padding to 80 worked.

from numpy import linspace, sin
from traits.api import HasTraits, Instance
from traitsui.api import View, Item
from chaco.api import Plot, ArrayPlotData
from enable.api import ComponentEditor

class LinePlot(HasTraits):
    plot = Instance(Plot)

    traits_view = View(
        Item('plot',editor=ComponentEditor(), show_label=False),
        width=500, height=500, resizable=True, title="Chaco Plot")

    def _plot_default(self):
        x = linspace(-14, 14, 100)
        y = sin(x) * x**3
        plotdata = ArrayPlotData(x=x, y=y)

        plot = Plot(plotdata)
        plot.plot(("x", "y"), type="line", color="blue")
        plot.title = "sin(x) * x^3"

        plot.x_axis.title = "X AXIS"
        plot.y_axis.title = "Y AXIS"

        plot.padding_left = 80

        return plot

if __name__ == "__main__":
    LinePlot().configure_traits()

Hope this helps.

-Tim

_______________

Tim Diller, PhD

ティム　ディラ、博士

Director, Digital Transformation Services | Enthought

T  +1 512 536 1058 x126

M +1 512 545 3839

‌‌tdi...@enthought.com

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<Chaco Plot.jpg>

[christophe chappet]

Thanks for the padding trick, it also works on my W7 system with 80.

Cheers,

Christophe