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annotate +draw/prompt_point.m @ 86:3c39dd714fb6

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In Curve: Added numerical FD differentiation if derivative is not supplied. Added arc length computation based on the derivative. Added arc length parameterization (but this function is very slow.). In +util: Added fzero_vec.m and integral_vec.m, which call fzero and integral but take vector arguments.
author Martin Almquist <martin.almquist@it.uu.se>
date Sun, 29 Nov 2015 14:28:53 +0100
parents 48b6fb693025
children 00eb5db89da5
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1 function [p, button] = prompt_point(s,varargin)
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2 default_arg('s',[])
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3
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4 set(gcf,'Pointer','crosshair')
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5
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6 if ~isempty(s)
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7 fprintf(s,varargin{:});
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8 end
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9
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10 a = gca;
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11
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12 function get_point(src,event)
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13 cp = a.CurrentPoint;
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14 p = cp(1,1:2)';
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15 a.ButtonDownFcn = [];
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16 end
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17
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18 a.ButtonDownFcn = @get_point;
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19 waitfor(a,'ButtonDownFcn', [])
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20
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21 set(gcf,'Pointer','arrow')
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22
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23 end