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view +draw/prompt_point.m @ 835:008496ca38f3 feature/burgers1d

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Compute the residual in between each runge-kutta stage. Note: It is not clear whether the correct residual is used when computing the stages. Must investigate further.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 13 Sep 2018 18:14:54 +0200
parents 00eb5db89da5
children
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function [p, button] = prompt_point(s, varargin)
    default_arg('s',[])

    set(gcf,'Pointer','crosshair')

    if ~isempty(s)
        fprintf(s, varargin{:});
    end

    fh = gcf();
    ah = gca();

    function get_point(src, event)
        cp = ah.CurrentPoint;
        p = cp(1,1:2)';
        fh.WindowButtonUpFcn = [];
    end

    fh.WindowButtonUpFcn = @get_point;
    waitfor(fh,'WindowButtonUpFcn', [])

    set(gcf,'Pointer','arrow')

end