LineThroughVector

Contents

LineThroughVector(Point,Vector)
Plot Basics
Plot the point x0
Plot the vector for which the line will be parallel to
Plot the line in green

function LineThroughVector(p,v)

LineThroughVector(Point,Vector)

Plot the line throuh a given point, parallel to a given vector

Plot Basics

	close all
	hold on;
	m = max(v) + 2;
	axis([-m,m,-m,m])

Plot the point x0

	disp('The point x0 is in blue, the origin is a red cross.');
	plot(p(1),p(2),'*b','MarkerSize',10);
	plot(0,0,'r+',0,0,'ro','MarkerSize',20); % Plot the same point in different symbols
	pause;

Plot the vector for which the line will be parallel to

	disp('The vector x which defines the direction is in red.');
	PlotVector(v,'.r');
	pause;

Plot the line in green

	disp('The line through the blue point x0, parallel to the red vector x is in green.');
	for t = -3:.05:3;
		    u = t*v + p ;
			plot(u(1),u(2),'g.','MarkerSize',10)
			drawnow;
			pause(.01);
	end