Ploting point according to a matrix

Hi data:

x=[1; 1; 3; 3; 2];
y=[1; 3; 3; 1; 2];
A=[0 1 0 1 0;1 0 1 0 1;0 1 0 1 1;1 0 1 0 0; 0 1 1 0 0];

I got some trouble plotting this. I got my XY point and need to plot it according to the matrix A. Cant seem to find any help on google and it's should be simpel but im not that good at mathlab

[Jan]

You have defined x and y, but how did you get "your XY point"? What is this? What does "plotting accoding to the matrix" mean?

[Jens Christian Lassen]

i have uploaded the question

[Jens Christian Lassen]

All the text

[Jan]

Oh, I see, a homework question. My questions remain:

How did you get "your XY point"? What is this? What does "plotting accoding to the matrix" mean?

[Jens Christian Lassen]

Just forget that. and see the homework question

[Jan]

@Jens: I assume, that your teacher gave you some lessons about Automotive Design, homogenous coordinates and adjecency matrices are used. Can you apply anything from what he has told you?

[Joshua]

@Jens: Since this is homework I don't want to display a complete answer, but from what I read on Wikipedia, you want to draw a line between point i and point j if A(i,j)==1. If you input the x and y coordinates of c into vectors x and y respectively, you can plot the points using plot(x,y,'*'). From there you just need to use the line command. For example, line([x1 x2],[y1 y2]) would draw a line from point (x1,y1) to (x2,y2).

The drawing of lines can be done using an "if" statement in a "for" loop, inside another "for" loop. Try looking at Matlab documentation for the "if" command and for nested "for" loops. Good luck!