view +draw/prompt_bezier.m @ 1198:2924b3a9b921 feature/d2_compatible

Add OpSet for fully compatible D2Variable, created from regular D2Variable by replacing d1 by first row of D1. Formal reduction by one order of accuracy at the boundary point.
author Martin Almquist <malmquist@stanford.edu>
date Fri, 16 Aug 2019 14:30:28 -0700
parents 875386d0b2ff
children
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line source

function [C,h] = prompt_bezier(s,varargin)
    default_arg('s',[])
    if ~isempty(s)
        fprintf(s,varargin{:});
    end

    fprintf('# Draw bezier curve\n')
    a = draw.prompt_point('Enter starting point\n');
    p = draw.point(a);
    p.Color = Color.green;
    p.MarkerSize = 24;
    b = draw.prompt_point('Enter stopping point\n');
    p = draw.point(b);
    p.Color = Color.red;
    p.MarkerSize = 24;
    c1 = draw.prompt_point('Enter control point 1\n');
    p = draw.point(c1);
    p.Color = Color.yellow;
    p.MarkerSize = 16;
    c2 = draw.prompt_point('Enter control point 2\n');
    p = draw.point(c2);
    p.Color = Color.yellow;
    p.MarkerSize = 16;

    C = parametrization.Curve.bezier(a,c1,c2,b);
    fprintf('C = parametrization.Curve.bezier([%.3g; %.3g],[%.3g; %.3g],[%.3g; %.3g],[%.3g; %.3g]);\n',a,c1,c2,b)
    h = C.plot();
    uistack(h,'bottom');

end