gradient of bubble colors in a bubble chart

Question

SA-W 2023-3-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1928415-gradient-of-bubble-colors-in-a-bubble-chart

评论： SA-W 2023-3-14

I want to create a bubblechart with three different bubble colors.

One group of bubbles is red, the second group is blue, and the color of the third group should be a mixture of red and blue. For instance, the left half of the bubble (circle) is red and the right half is blue. Or even better, a continuous trend from left to right.

Is there a way to do this?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Cameron 2023-3-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1928415-gradient-of-bubble-colors-in-a-bubble-chart#answer_1192790

在 MATLAB Online 中打开

I'm not sure what you mean by "continuous trend from left to right". Can you post an image of what you're looking for? This was what I thought you meant.

x = 1:30;

y = rand(1,length(x));

sz = rand(1,length(x));

%get color gradient from https://www.mathworks.com/matlabcentral/fileexchange/25536-red-blue-colormap

m = length(sz);

if (mod(m,2) == 0)

% From [0 0 1] to [1 1 1], then [1 1 1] to [1 0 0];

m1 = m*0.5;

r = (0:m1-1)'/max(m1-1,1);

g = r;

r = [r; ones(m1,1)];

g = [g; flipud(g)];

b = flipud(r);

else

% From [0 0 1] to [1 1 1] to [1 0 0];

m1 = floor(m*0.5);

r = (0:m1-1)'/max(m1,1);

g = r;

r = [r; ones(m1+1,1)];

g = [g; 1; flipud(g)];

b = flipud(r);

end

c = [r g b];

t = tiledlayout(1,1);

nexttile

b = bubblechart(x,y,sz,c,'MarkerEdgeColor','k');

colormap(c)

colorbar

blgd = bubblelegend('Population');

lgd = legend('My data');

blgd.Layout.Tile = 'east';

lgd.Layout.Tile = 'east';

2 个评论
显示无隐藏无

SA-W 2023-3-14

Conceptually, I am looking for something similar as what was asked here. Instead of a rectangle, I want to fill a circle (bubble) with a gradient color.

You plotted a bubble chart where each bubble is filled with one color. I want a gradient color for a single bubble, not a constant color.

SA-W 2023-3-14