How can I make contour lines smoother?

17 ビュー (過去 30 日間)
Sandy
Sandy 2013 年 6 月 14 日
コメント済み: Konstantin 2017 年 4 月 3 日
How can I make contour lines smoother?

回答 (3 件)

Kelly Kearney
Kelly Kearney 2013 年 6 月 20 日
The easiest way to do this is to interpolate your data to a higher resolution using an interpolation scheme that will result in smoother transitions between points, such as a spline.
[x,y,z] = peaks(10);
[xnew, ynew] = meshgrid(linspace(-3,3,100));
znew = interp2(x,y,z,xnew,ynew, 'spline');
subplot(2,1,1);
hold on;
scatter(x(:), y(:), [], z(:), 'filled');
contour(x,y,z, -6:7);
subplot(2,1,2);
hold on;
scatter(x(:), y(:), [], z(:), 'filled');
contour(xnew, ynew, znew, -6:7);
Be careful with this, though, since it might introduce some artifacts. Even though it may not be as visually pleasing, the low-res, less-smooth version is a more accurate depiction of the underlying data.
  1 件のコメント
Konstantin
Konstantin 2017 年 4 月 3 日
Thanks. Very useful example.

サインインしてコメントする。


Andrew Reibold
Andrew Reibold 2013 年 6 月 14 日
Is it something you can try "binning"?
  1 件のコメント
Sandy
Sandy 2013 年 6 月 17 日
編集済み: Sandy 2013 年 6 月 17 日
Well the data has already been binned (hist3()).

サインインしてコメントする。


Image Analyst
Image Analyst 2013 年 6 月 20 日
Please post an image or screenshot. For example, one way could be to blur your image with conv2() or imfilter() before you call contour().

カテゴリ

Help Center および File ExchangeContour Plots 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!

Translated by