Polar coordinates mixed with cartesian coordinates

I want to combine two plots. One of them is a
grid given in cartesian coordinates. The other one
is an arc, written in polar coordinates.

==============================================================
restart: with(plots):
pgrid := pointplot({seq(seq([i,j],j=-1..3),i=-1..3)},
axes=BOXED, symbol=CIRCLE,symbolsize=10,color=black):
parc := plot([1/2,t,t=15*Pi/180..130*Pi/180],
numpoints=100,coords=polar):
display({pgrid,parc});
==============================================================

This "overlay" of the two graphs is not exactly what I am
aiming at. I would like to have the center of my arc
somewhere else, at point [1,1] for example.

Is there some "shift" possibility for that purpose? Here is
a rough idea, which shows my intention:

display({pgrid,parc+[1,1]});
^^^^^^
"Translation" of the arc

Maybe this question is as uninteresting for readers of this
Maple-Newsgroup as my last question regarding the funny disc.
Where should I pose my questions then, please?

Best regards,
Rainer Rosenthal

 

parc2 := plottools[translate](parc, 1,1):
display(pgrid,parc2);

You can also pose these questions at MaplePrimes: www.MaplePrimes.com

 

Joe Riel wrote:

[Wanted:]

Many thanks for the two helpful answers. Nice that my translation
idea was already there. So this was a "late anticipation" on my side

Best regards,
Rainer