function [nState,idxs]...
    =getIndexDyn(SysData)
% Generate the indexes of state variables from system data
%
% FUNCTION getIndexDyn
%
% Author: Rui Yao <ruiyao@ieee.org>
%
% Copyright (C) 2021, UChicago Argonne, LLC. All rights reserved.
%
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% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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% 

nbus=size(SysData.bus,1);
nInd=size(SysData.ind,1);
nSyn=size(SysData.syn,1);
nExc=size(SysData.exc,1);
nTg=size(SysData.tg,1);
nCac=size(SysData.cac,1);
nCluster=size(SysData.cluster,1);

idxs.vIdx=(1:nbus)';
idxs.qIdx=(1:nbus)'+nbus;
idxs.sIdx=(1:nInd)'+2*nbus;
idxs.deltaIdx=(1:nSyn)'+2*nbus+nInd;
idxs.omegaIdx=(1:nSyn)'+2*nbus+nInd+nSyn;
idxs.eq1Idx=(1:nSyn)'+2*nbus+nInd+2*nSyn;
idxs.eq2Idx=(1:nSyn)'+2*nbus+nInd+3*nSyn;
idxs.ed1Idx=(1:nSyn)'+2*nbus+nInd+4*nSyn;
idxs.ed2Idx=(1:nSyn)'+2*nbus+nInd+5*nSyn;
idxs.psidIdx=(1:nSyn)'+2*nbus+nInd+6*nSyn;
idxs.psiqIdx=(1:nSyn)'+2*nbus+nInd+7*nSyn;
idxs.pgIdx=(1:nSyn)'+2*nbus+nInd+8*nSyn;
idxs.efIdx=(1:nSyn)'+2*nbus+nInd+9*nSyn;
idxs.vavrmIdx=(1:nExc)'+2*nbus+nInd+10*nSyn;
idxs.vavrrIdx=(1:nExc)'+2*nbus+nInd+10*nSyn+nExc;
idxs.vavrfIdx=(1:nExc)'+2*nbus+nInd+10*nSyn+2*nExc;
idxs.vavrrefIdx=(1:nExc)'+2*nbus+nInd+10*nSyn+3*nExc;
idxs.tgovgIdx=(1:nTg)'+2*nbus+nInd+10*nSyn+4*nExc;
idxs.tgovmIdx=(1:nTg)'+2*nbus+nInd+10*nSyn+4*nExc+nTg;
idxs.tmechIdx=(1:nTg)'+2*nbus+nInd+10*nSyn+4*nExc+2*nTg;

idxs.fIdx=(1:nbus)'+2*nbus+nInd+10*nSyn+4*nExc+3*nTg;
idxs.dpgIdx=(1:nbus)'+3*nbus+nInd+10*nSyn+4*nExc+3*nTg;
idxs.qpltIdx=(1:nCac)'+4*nbus+nInd+10*nSyn+4*nExc+3*nTg;
idxs.vgIdx=(1:nCluster)'+4*nbus+nInd+10*nSyn+4*nExc+3*nTg+nCac;

nState=4*nbus+nInd+10*nSyn+4*nExc+3*nTg+nCac+nCluster;
end