Rotate and Move an half-circle Matlab - matlab

Question

I plot an half-circle and I rotate it with :
t=linspace(0,pi,1000);
x=r*cos(t);
y=r*sin(t);
h=plot(-2+x,y);
rotate(h,[0 0 -1],1,[0.5 3.71 0]);
now, I would like to move/shif the half-circle from the center , such that the half-circle changes position but I want that it maintains also the rotation done.
Who can help me?

Answer 1

To shift for example 10 units in the x direction and 5 in the y direction:
set(h,'XData',get(h,'XData')+10)
set(h,'YData',get(h,'YData')+5)
As you see, it's done by modifying the properties of the h object

Answer 2

Disregard my above comments, you can actually shift data around after it has been plotted. You can modify the XData and YData values as long as you have a handle to the plot that you created
Do something like this
clc; close all; clear all;
t=linspace(0,pi,1000);
r = 5
x=r*cos(t);
y=r*sin(t);
h=plot(-2+x,y);
rotate(h,[0 0 -1],1,[0.5 3.71 0]);
xShift = 5;
yShift = 5;
set(h,'XData',get(h,'XData')+xShift)
set(h,'YData',get(h,'YData')+yShift)

Answer 3

Just an additional answer to demonstrate hgtransform, the others will work well too.
t=linspace(0,pi,1000);
x=r*cos(t);
y=r*sin(t);
h=plot(-2+x,y);
rotate(h,[0 0 -1],1,[0.5 3.71 0]);
hgt=hgtransform('parent',gca);
set(h,'parent',hgt);
Tx = makehgtform('translate',[10 -5 0]); % translate +10 x, -5 y, 0 z
set(hgt,'Matrix',Tx);
drawnow;
You could also potentially use the hgtranform to do the rotation at the same time, but it might take a bit of fiddling around to get the axis origin to work as you have above:
RxTx = makehgtform(xrotate',0.5,'yrotate',3.71,'translate',[10 -5 0]);
set(hgt,'Matrix',RxTx);
drawnow;