Make a line of same magnitude move in opposite direction at endpoint

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Aarav Shah 2019-11-29

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/493944-make-a-line-of-same-magnitude-move-in-opposite-direction-at-endpoint

评论： darova 2019-11-29

xyValues = dlmread('Batman.txt');

xsLogo = xyValues(:,1);

ysLogo = xyValues(:,2);

%BatBeam

launchBeam = plot(xClic + xsLogo,yClic + ysLogo,'k');

hText = text(xClic,yClic,'BatBeam');

title('Alright, your laser is gonna fire now');

% Plot that point

plot(xClic, yClic)

xlim([0,100])

ylim([0,100])

hold on

% Compute y intercept for slope of 1

b = yClic+1*xClic;

% Plot the line between the click point and the y intercept

batBeam = plot([xClic,0],[yClic,b],'b--');

This code plots a dashed line depending where the user clicks and the line always ends when x=0. I want to start a new line of the same magnitude move in an opposite direction starting at the current endpoint. Any pointers? I need urgent help for a project and appreciate legitimate answers with a tangible conclusion.