Rendering issues when using pie()

[xarico10]

When using pie, the default colors doesn't match with those from MATLAB and the grid is automatically printed, when in MATLAB isn't (and doesn't really make sense to have a grid on a pie chart). Also, seems to be a deformation on the shape (not plotting a well-formed circle).

For example,

X = [1 3 0.5 2.5 2];
pie(X)

fig2plotly();

Expected and generated (https://chart-studio.plotly.com/~xarico10/467/#/) plots:

Examples on using pie() can be found on: https://www.mathworks.com/help/matlab/ref/pie.html#responsive_offcanvas

[gilbertogalvis]

PR #349 fix this issue

For this I proposed a new plot option to control axis size called AxisEqual

code to test:

close all, clc
X = [1 3 0.5 2.5 2];
pie(X)
fig2plotly(gcf, 'offline', 0, 'AxisEqual', true);

Using before code results are as bellow

If 'AxisEqual' is not set or is set to false then the result is as bellow