Copying a nonvisible figure causes images to have weird coloring?

Question

Qingyang 2012-7-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/43964-copying-a-nonvisible-figure-causes-images-to-have-weird-coloring

So, I have this code that showed the figure resultsf (which has 'visible' set to 'off'). I copy it because I do not wish for it to be deleted when the user closes the figure window.

        global resultsf;
        f = figure('Name', 'Results');
            copyobj(allchild(resultsf), f);
        set(f, 'visible', 'on');

However, the problem is that when I display resultsf by itself (by setting 'visible' to 'on'), the images (grayscale) in the figure display perfectly. But, when I use the above code, the images will have have a coloring to them.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Qingyang 2012-7-18

I'm not sure if these links definitely work, but here:

Resultsf: http://g2f.nl/0hafwo8

Copied figure: http://g2f.nl/07496u5

Qingyang 2012-7-18

I feel that the images are being colormaped even though I did not specify for them to be.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2012-7-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/43964-copying-a-nonvisible-figure-causes-images-to-have-weird-coloring#answer_53945

在 MATLAB Online 中打开

colormap is per-figure, and is not a property of any child object of the figure. When you create the Results figure, it is given the default colormap, and unless you specifically change that, any mapped child object will use that default colormap.

You should

set(f, 'Colormap', get(resultsf, 'Colormap'))