Get boundary object from a bar plot
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Is there a way to get a line/ patch object from a bar plot, if there even is such object in a bar plot?
I'm trying to implement "hatch" (https://se.mathworks.com/matlabcentral/fileexchange/2075-hatch-m) together with "bar" but can't extract the expected object, not even:
findobj(b(1), 'Type', 'patch')
works...
Is it simply so that bar does not contain what I search for and I have to forfit my attempts at "hatching" the bars?
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Mario Malic
2020-11-5
0 个投票
It looks like such object does not exist on bar anymore.
5 个评论
Kristoffer Clasén
2020-11-5
Mario Malic
2020-11-5
编辑：Mario Malic
2020-11-5
You can actually use patch function.
x = 1900:10:2000;
y = [75 91 105 123.5 131 150 179 203 226 249 281.5];
Bar_Obj = bar(x,y);
% Get data about bars
x_points = Bar_Obj.XEndPoints;
y_points = Bar_Obj.YEndPoints;
width = abs(x(1)-x(2))*Bar_Obj.BarWidth/2; % BarWidth is relative measure
From this, you can construct each polygon,
Poly_X = [x_points-width; x_points+width; x_points+width; x_points-width]; % x coords counter clockwise, 1st point is down-left
Poly_Y = [zeros(size(x_points)); zeros(size(x_points)); y_points; y_points]; % y coords ccw
c = repmat([0 6 4 2]', [1,length(y_points)]); % color, find example in patch
And finally,
patch (Poly_X, Poly_Y, c);
Probably, you can reuse the same idea with function imagesc if you'd provide hatch images.
Kristoffer Clasén
2020-11-6
Mario Malic
2020-11-6
It should properly work with mentioned properties and yes, errorbar comes after patching.
You're welcome.
Kristoffer Clasén
2020-11-6
编辑：Kristoffer Clasén
2020-11-6
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