Hello Heinz,
Le 24/03/2019 à 16:18, Heinz Nabielek a écrit :
First polarplot problem was to put 0 on top and 90° to the right. This problem
was solved by Federico using gca().rotation_angles = [180 0]
x = (0:360)/180*%pi;
y = 0.5*(1 + cos(x));
polarplot(x, y)
gca().rotation_angles = [180 0]
Yes, this is the trick. It work since Scilab 6.0.2. Before, labels were
shifted when rotating the axes. This was recently corrected in order to
use this trick. It is now being documented
<http://bugzilla.scilab.org/show_bug.cgi?id=5693>.
______
Second problem:
plot several curves in polar mode is to use matrices as input, as for the
plot() and plot2d() functions
does not work....
x = (0:360)'/180*%pi;
z=[(0.5*(1 + cos(x))) (0.5+(1 + cos(x)))];
polarplot(x,z);
produces the ERROR MESSAGE
at line 18 of function polarplot (
/Applications/scilab-6.0.2.app/Contents/MacOS/share/scilab/modules/graphics/macros/polarplot.sci
line 31 )
Inconsistent row/column dimensions.
To be reported. This occurs since the first ages of Scilab. This clearly
deserves to be fixed.
The behavior should be the plot() and plot2d() one.
As a workaround before Scilab 6.1.0, the following code may be used:
x = (0:360)'/180*%pi;
z = [(0.5*(1 + cos(x))) (0.5+(1 + cos(x)))];
polarplot(x*ones(z(1,:)), z)
Samuel
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