Region

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region(regTag[, '-ele', e1, e2, ...][, '-eleRange', e1, e2, ...][, '-node', nd1, nd2, ...][, '-nodeRange', nd1, nd2][, '-rayleigh', alphaM, betaK, betaKinit, betaKcomm][, 'getNodeTags'][, 'getConnectedEleTags'][, 'getEleTags'][, '-mass', m1, m2, ...]) ¶

an enhanced region command

Parameters:	* regTag (int) - a predefined or new region tag.
	* "-ele", e1, e2, ... (int) – the region is defined by elements e1, e2, .... If no tag is given, then all elements are added.
	* "-node", nd1, nd2, ... (int) – the region is defined by nodes nd1, nd2, .... If no tag is given, then all nodes are added.
	* "-nodeRange", nd1, nd2, ... (int) – the region is defined by nodes in the range [nd1 nd2].
	* '-rayleigh', alphaM, betaK, betaKinit, betaKcomm (float) – arguments as in rayleigh command.
	* eletype... (str) – the name of the element followed by element parameters.
	Returns:
	Return Type:

Example:

alpha = 1.4
freeregs = [1,2]
fixedregs = [3,4]
eleargs = ['PFEMElement2DBubble',rho,mu,b1,b2,thk,kappa]

remesh('tri', alpha, len(freeregs), *freeregs, len(fixedregs) *fixedregs, *eleargs)