## Vector Diagram

Do anyone have any software by which i can make a vector diagram from a group of points.you can think it like..suppose you have x & y component of a vector at a point..you can draw that easily but i will have to draw a vector diagram for 100 or more points arranged on a surface...i will give the co-ordinate(x,y) of that points and x&y component values of vectors which works at the respective points..as an example.....
x y Vx VY
0 0 2 3
1 0 5 1
2 0 3 3
......................
It is urgent
 You've really never heard of Excel?
 Thank you "Angry Citizen" for your prompt reply.It will be very helpful for me if you show me the way for 2 or 3 points in excel...Thanks

## Vector Diagram

Post your 100 or so starting and ending points and what kind of output file format you need.

Thank you Mr. Bill Simpson for your reply. I am attaching files for your consideration. i am wanting this type of figure.
Attached Thumbnails

Attached Files
 Vector diagram.xls (19.0 KB, 5 views)
 I don't think the exel file has enough information to plot what you want....you talked about x,y,Vx,Vy....and all I see is x,y,z
 I am guessing about a few things, but here is a quick and dirty Mathematica implementation. In[1]:= v=Import["Vector Diagram.xls"]; In[2]:= vv=Map[Drop[#,1]&,Drop[v,5]]; (*discard "labels"*) In[3]:= g=Show[Graphics[Reap[ For[y=5/2,y≥0,y-=1/10, For[x=0,x≤5,x+=1/2, mx=2x+1;my=10(5/2-y)+1; (*create suitable subscripts*) Sow[Line[{{x,y},{x+1/15Cos[vv[[my,mx]]Degree],y+1/15Sin[vv[[my,mx]]Degree]}}]]; Sow[Point[{x+1/15Cos[vv[[my,mx]]Degree],y+1/15Sin[vv[[my,mx]]Degree]}]] ] ] ][[2,1]]]] In[4]:= Export["vectors.gif",g,ImageResolution->300] Out[4]= vectors.gif Check this carefully before you depend on it Attached Thumbnails

Thanks gsl for your reply. I am giving you the x and y component of the vec
Attached Files
 x and y component.xls (25.5 KB, 8 views)
 According to your latest excel file where you include separate component for x,y velocity...this is what I get, using python and the pylab module Code: from pylab import * X,Y = meshgrid(arange(0,5.5,0.5), arange(0,2.6,0.1)) U = genfromtxt("vectors-U.txt", dtype=float, delimiter='\t') V = genfromtxt("vectors-V.txt", dtype=float, delimiter='\t') figure() Q = quiver(X,Y,U,V,pivot='mid',color='red',scale=300) plot(X,Y,'k.') axis([-1.0,6.0,-0.5,3.0]) title('Velocity') show() Attached Thumbnails