Make cylindrical grids

To add a cylindrical grid, the following data are required:

• the coordinates (vertex) of the cylinder base center: pt
• the vectors defining the axe and the direction of the cylinder: vex, vez
• the radial, angular and axial sizes: dr, da, dl
• the radial, angular and axial elements number: nr, na, nl
• to fill or not the central part of hexahedra: fill

Make a cylindrical grid:

elts = doc.makeCylindrical(pt, vex, vez, dr, da, dl, nr, na, nl, fill)

Fill of the central part of the cylinder in the case the number of angular elements is odd na = 5.

Fill of the central part of the cylinder in the case the number of angular elements is even na = 4.

Example

Filling rule is illustrated by differents case-tests:

import hexablock
doc = hexablock.addDocument()

orig1 = doc.addVertex(0, 0, 0);
orig2 = doc.addVertex(10, 0, 0);
orig3 = doc.addVertex(0, 10, 0);
orig4 = doc.addVertex(10, 10, 0);
orig5 = doc.addVertex(0, 20, 0);
orig6 = doc.addVertex(10, 20, 0);

vz = doc.addVector(0, 0, 1);
vx = doc.addVector(1, 0, 0);

dr = 1
dl = 1
nr = 2
nl = 3

c1 = doc.makeCylindrical(orig1, vx, vz, dr, 360, dl, nr, 4, nl, True);
c2 = doc.makeCylindrical(orig2, vx, vz, dr, 360, dl, nr, 8, nl, True);
c3 = doc.makeCylindrical(orig3, vx, vz, dr, 270, dl, nr, 8, nl, True);
c4 = doc.makeCylindrical(orig4, vx, vz, dr, 270, dl, nr, 7, nl, True);
c5 = doc.makeCylindrical(orig5, vx, vz, dr, 360, dl, nr, 5, nl, True);
c6 = doc.makeCylindrical(orig6, vx, vz, dr, 360, dl, nr, 6, nl, True);

Cylindrical Grids

GUI command: Cylindrical grid