[HaKu]

hey

may be my question will confuse evrybody but i wil try to put the issue in words..

i need to make a grid around the circle... there are different grids like O, C or H type.
the generation of O grids is easy but what i want is that on the boundaries the grid boxes should be square (means the intersecting lines should be at 90 degrees)... for this requirement i cant use O grid and neither C or H... C grid will have the same problem as O grid on the top and lower boundaries and H grid cant be applied as it is circle and surafce is curved..

I am thinking to make mesh in two steps.. around the circle O grid and then all around try to make a border of rectangle in which the grids would be at right angles..

any other suggestions...

[ztdep]

Dear freinds:
Do you mean the cartesian grid system.

[HaKu]

yes exactly.. this is the kind of grid i want ?? any ideas how to make it in fortran.. would like to know the procedure to do it..

thanks

[ztdep]

dear friends.
this kind of grid can be generated base on the quadra tree data structure in fortran.
i have study this problem for 2 years. according to my experience, there are no free code in the web. tried to find some paper for reference.

[HaKu]

thanks for info; any paid codes on web in fortran for this problem??
regards