color area between two shapes
3 ビュー (過去 30 日間)
古いコメントを表示
I have two shapes and I want to color the area between them
The first shape is a circle of Radius R=10 for example and with center (0,0), and the second shape is a random shape but surrounds the cirle and may have communs points, but it is impossible to have points inside the circle (as in the picture).
As example for real data that I have:
load('data.mat'); % load the coordinates of the second random shape represented as 'xfs' and 'yfs'
%%%%%%%%% create the circle %%%%%%%%%%
R = 10; C = [0. 0.] ;
xcf = C(1)+R*cos(linspace(0,2*pi,length(xfs))) ;
ycf = C(2)+R*sin(linspace(0,2*pi,length(xfs))) ;
6 件のコメント
Matt J
2021 年 4 月 22 日
Let's plot it right now:
load(websave('t','https://www.mathworks.com/matlabcentral/answers/uploaded_files/592700/data.mat'))
scatter(xfs,yfs)
採用された回答
Matt J
2021 年 4 月 22 日
編集済み: Matt J
2021 年 4 月 22 日
load(websave('t','https://www.mathworks.com/matlabcentral/answers/uploaded_files/592785/data.mat'))
R = 10; C = [0. 0.] ;
xcf = C(1)+R*cos(linspace(0,2*pi,length(xfs))) ;
ycf = C(2)+R*sin(linspace(0,2*pi,length(xfs))) ;
shpOuter=polyshape(xfs,yfs);
shpInner=polyshape(xcf,ycf);
plot(shpOuter,'FaceColor','none');
hold on
plot(shpInner,'FaceColor','none');
plot(subtract(shpOuter,shpInner))
hold off
5 件のコメント
Matt J
2021 年 4 月 22 日
No. You should upgrade. There have been lots of important new features added since R2016a.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Elementary Polygons についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!