Polyshape rotation without distort

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Elias Büdel
Elias Büdel on 12 Oct 2021
Commented: Elias Büdel on 12 Oct 2021
I did this, but the contour always distort.
May someone can help me.
format long
lat=GNSS_Lat_Abs
long=GNSS_Long_Abs
lat(1)=[]
long(1)=[]
PP=[lat,long]
Shape=polyshape(PP)
[a,b]=centroid(Shape)
S=[a,b]
Rot=rotate(Shape,70,S)
[x,y]=boundary(Rot)
geoplot(lat,long,'-x',x,y,'-x')
geobasemap satellite

Accepted Answer

Matt J
Matt J on 12 Oct 2021
Edited: Matt J on 12 Oct 2021
Probably because the data aspect ratio of your plot is not 1. I.e., the scales of your x and y axes are different.
  1 Comment
Elias Büdel
Elias Büdel on 12 Oct 2021
Thank you, now I know long and lat are not te same scaling

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