How to plot values from 1st column in 2-D plot?

I have a matrix Positions =

1 246 242

2 246 19

3 217 120

4 45 159

5 198 126

6 156 198

7 292 189

8 195 88

9 241 130

10 137 5

11 130 296

12 248 51

13 26 32

14 40 112

15 53 60

16 118 147

17 250 102

First column presents a node. Second X position of a node and third Y position. I know how to plot position of nodes in X-Y graph like this: <https://dl.dropboxusercontent.com/u/22357708/XXScrCap-0266.jpg>

But I don't know (yet) how to plot the first column number (1:17) instead of *

Thanks in advance for your time & help.

[Rob]

If you'd like to see the attached picture, just copy&paste the link into a newly opened browser tab.

Answer 1

[the cyclist]

You are trying to plot the node number as a label? If so, then you could use the text command

for n = 1:length(Position)
  text(Position(n,2),Position(n,3),num2str(Position(n,1)))
end

This will probably overlap the plot symbol a little, so you might want to offset a bit.

doc text

for details.

[Rob]

Thanks a lot.

Yes it did overlaped a little, so I changed to

text(Position(n,2)+3,Position(n,3),num2str(Position(n,1)))