What is wrong with my code.I want to connect stars(*)by straight line,but it's printing only points,not line!
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function draw_constellations
set(gcf,'color','m');
set(gca,'color','m');
axis([0 100 0 100])
hold on;
while 1
[x,y,button]=ginput(1);
switch button
case 1
plot(x,y,'w*-');
case{'q','Q'}
break;
end
end
end
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回答(1 个)
Steven Lord
2020-5-29
You're creating one line per ginput call, plotting one point per line. They're not all the same line object so they're not connected. I would create an animatedline object before entering the while loop and addpoints to it inside.
h = animatedline('Marker', '*', 'LineStyle', '-');
while 1
[x,y,button]=ginput(1);
switch button
case 1
addpoints(h, x, y);
case{'q','Q'}
break;
end
end
2 个评论
Steven Lord
2020-5-29
Specify additional properties of the animatedline when you construct it, like I did with the Marker and LineStyle properties. The properties you can change are listed on this documentation page.
另请参阅
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