// xfem_set_info sets extra information for XFEM elements
func xfem_set_info(info *Info, cell *inp.Cell, edat *inp.ElemData) (ykeys []string) {
// flags
xmat, xcrk, xfem := false, false, false
if s_xmat, found := io.Keycode(edat.Extra, "xmat"); found {
xmat = io.Atob(s_xmat)
xfem = true
}
if s_xcrk, found := io.Keycode(edat.Extra, "xcrk"); found {
xcrk = io.Atob(s_xcrk)
xfem = true
}
_ = xcrk // TODO
// skip if not XFEM
if !xfem {
return
}
// extra information
nverts := cell.Shp.Nverts
if xmat {
for m := 0; m < nverts; m++ {
info.Dofs[m] = append(info.Dofs[m], "am")
}
info.Y2F["am"] = "nil"
info.T2vars = append(info.T2vars, "am")
}
return
}
func GetSolidFlags(extra string) (useB, debug bool, thickness float64) {
// defaults
useB = false
debug = false
thickness = 1.0
// flag: use B matrix
if s_useB, found := io.Keycode(extra, "useB"); found {
useB = io.Atob(s_useB)
}
// fix useB flag in case of axisymmetric simulation
if Global.Sim.Data.Axisym {
useB = true
}
// flag: thickess => plane-stress
if s_thick, found := io.Keycode(extra, "thick"); found {
thickness = io.Atof(s_thick)
}
// fix thickness flag
if !Global.Sim.Data.Pstress {
thickness = 1.0
}
// flag: debug
if s_debug, found := io.Keycode(extra, "debug"); found {
debug = io.Atob(s_debug)
}
return
}
func main() {
// input data
matOld := "matOld.mat"
matNew := "matNew.mat"
convSymb := true
// parse flags
flag.Parse()
if len(flag.Args()) > 0 {
matOld = flag.Arg(0)
}
if len(flag.Args()) > 1 {
matNew = flag.Arg(1)
}
if len(flag.Args()) > 2 {
convSymb = io.Atob(flag.Arg(2))
}
// print input data
io.Pf("\nInput data\n")
io.Pf("==========\n")
io.Pf(" matOld = %30s // old material filename\n", matOld)
io.Pf(" matNew = %30s // new material filename\n", matNew)
io.Pf(" convSymb = %30v // do convert symbols\n", convSymb)
io.Pf("\n")
// convert old => new
inp.MatfileOld2New("", matNew, matOld, convSymb)
io.Pf("conversion successful\n")
io.Pfblue2("file <matNew.mat> created\n")
}
func main() {
// default input data
fn := "nurbs01.msh"
ctrl := true
ids := true
npts := 41
// parse flags
flag.Parse()
if len(flag.Args()) > 0 {
fn = flag.Arg(0)
}
if len(flag.Args()) > 1 {
ctrl = io.Atob(flag.Arg(1))
}
if len(flag.Args()) > 2 {
ids = io.Atob(flag.Arg(2))
}
if len(flag.Args()) > 3 {
npts = io.Atoi(flag.Arg(3))
}
// print input data
io.Pforan("Input data\n")
io.Pforan("==========\n")
io.Pfblue2(" fn = %v\n", fn)
io.Pfblue2(" ctrl = %v\n", ctrl)
io.Pfblue2(" ids = %v\n", ids)
io.Pfblue2(" npts = %v\n", npts)
// load nurbss
fnk := io.FnKey(fn)
B := gm.ReadMsh(fnk)
// plot
plt.SetForEps(0.75, 500)
for _, b := range B {
if ctrl {
b.DrawCtrl2d(ids, "", "")
}
b.DrawElems2d(npts, ids, "", "")
}
plt.Equal()
plt.Save(fnk + ".eps")
}
func atob(s string) bool {
if s == ".t." || s == ".T." {
return true
}
if s == ".f." || s == ".F." {
return false
}
return io.Atob(s)
}
// xfem_init initialises variables need by xfem model
func (o *ElemU) xfem_init(edat *inp.ElemData) {
// flags
o.Xmat, o.Xcrk, o.Xfem = false, false, false
if s_xmat, found := io.Keycode(edat.Extra, "xmat"); found {
o.Xmat = io.Atob(s_xmat)
o.Xfem = true
}
if s_xcrk, found := io.Keycode(edat.Extra, "xcrk"); found {
o.Xcrk = io.Atob(s_xcrk)
o.Xfem = true
}
// skip if not XFEM
if !o.Xfem {
return
}
// auxiliary variables
switch {
case o.Xmat:
o.Na = 1
case o.Xcrk:
o.Na = 4 // TODO: this is 2D only
if o.Ndim != 2 {
chk.Panic("xfem with crack works in 2D only for now")
}
}
// allocate extrem XFEM coupling matrices
nverts := o.Cell.Shp.Nverts
o.Amap = make([]int, o.Na*nverts)
o.Kua = la.MatAlloc(o.Nu, o.Na)
o.Kau = la.MatAlloc(o.Na, o.Nu)
o.Kaa = la.MatAlloc(o.Na, o.Na)
}
func main() {
// input data
simfile := "simfile.sim"
zmin := 0.0
zmax := 3.0
npts := 11
// parse flags
flag.Parse()
if len(flag.Args()) > 0 {
simfile = flag.Arg(0)
}
if len(flag.Args()) > 1 {
zmin = io.Atof(flag.Arg(1))
}
if len(flag.Args()) > 2 {
zmax = io.Atob(flag.Arg(2))
}
if len(flag.Args()) > 3 {
npts = io.Atoi(flag.Arg(3))
}
// print input data
io.Pf("\nInput data\n")
io.Pf("==========\n")
io.Pf(" simfile = %30s // simulation filename\n", simfile)
io.Pf(" zmin = %30s // min elevation\n", zmin)
io.Pf(" zmax = %30v // max elevation\n", zmax)
io.Pf(" npts = %30v // number of points\n", npts)
io.Pf("\n")
// sim file
sim := inp.ReadSim("", simfile, false)
if sim == nil {
io.PfRed("cannot read sim file\n")
return
}
// layer
var lay fem.GeoLayer
lay.Zmin = zmin
lay.Zmax = zmax
lay.Cl = sim.WaterRho0 / sim.WaterBulk
//if !lay.ReadPorousParameters(sim.Regions[0],
// TODO
}
func GetSeepFaceFlags(extra string) (Macaulay bool, BetRamp, Kappa float64) {
// defaults
Macaulay = false
BetRamp = math.Ln2 / 0.01
Kappa = 1.0
// use macaulay function ?
if s_mac, found := io.Keycode(extra, "mac"); found {
Macaulay = io.Atob(s_mac)
}
// coefficient for smooth ramp function
if s_bet, found := io.Keycode(extra, "bet"); found {
BetRamp = io.Atof(s_bet)
}
// κ coefficient
if s_kap, found := io.Keycode(extra, "kap"); found {
Kappa = io.Atof(s_kap)
}
return
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
if mpi.Rank() == 0 {
chk.Verbose = true
for i := 8; i > 3; i-- {
chk.CallerInfo(i)
}
io.PfRed("ERROR: %v\n", err)
}
}
mpi.Stop(false)
}()
mpi.Start(false)
// message
if mpi.Rank() == 0 {
io.PfWhite("\nGofem v3 -- Go Finite Element Method\n\n")
io.Pf("Copyright 2015 Dorival Pedroso and Raul Durand. All rights reserved.\n")
io.Pf("Use of this source code is governed by a BSD-style\n")
io.Pf("license that can be found in the LICENSE file.\n\n")
}
// simulation filenamepath
flag.Parse()
var fnamepath string
if len(flag.Args()) > 0 {
fnamepath = flag.Arg(0)
} else {
chk.Panic("Please, provide a filename. Ex.: cylinder.sim")
}
// check extension
if io.FnExt(fnamepath) == "" {
fnamepath += ".sim"
}
// other options
erasefiles := true
verbose := true
if len(flag.Args()) > 1 {
erasefiles = io.Atob(flag.Arg(1))
}
if len(flag.Args()) > 2 {
verbose = io.Atob(flag.Arg(2))
}
// profiling?
defer utl.DoProf(false)()
// start global variables and log
if !fem.Start(fnamepath, erasefiles, verbose) {
chk.Panic("Start failed\n")
return
}
// make sure to flush log
defer fem.End()
// run simulation
if !fem.Run() {
io.PfRed("ERROR: cannot run simulation\n")
}
}
func main() {
// finalise analysis process and catch errors
defer out.End()
// input data
simfn := "data/twoqua4.sim"
exnwl := false
stgidx := 0
// parse flags
flag.Parse()
if len(flag.Args()) > 0 {
simfn = flag.Arg(0)
}
if len(flag.Args()) > 1 {
exnwl = io.Atob(flag.Arg(1))
}
if len(flag.Args()) > 2 {
stgidx = io.Atoi(flag.Arg(2))
}
// check extension
if io.FnExt(simfn) == "" {
simfn += ".sim"
}
// print input data
io.Pf("\nInput data\n")
io.Pf("==========\n")
io.Pf(" simfn = %30s // simulation filename\n", simfn)
io.Pf(" exnwl = %30v // extrapolate nwl\n", exnwl)
io.Pf(" stgidx = %30v // stage index\n", stgidx)
io.Pf("\n")
// start analysis process
out.Start(simfn, stgidx, 0)
// global variables
ndim = out.Dom.Msh.Ndim
verts = out.Dom.Msh.Verts
cells = out.Dom.Msh.Cells
nodes = out.Dom.Nodes
elems = out.Dom.Elems
dirout = fem.Global.Sim.Data.DirOut
fnkey = fem.Global.Sim.Data.FnameKey
steady = fem.Global.Sim.Data.Steady
// flags
has_u := out.Dom.YandC["ux"]
has_pl := out.Dom.YandC["pl"]
has_pg := out.Dom.YandC["pg"]
has_sig := out.Ipkeys["sx"]
has_nwl := out.Ipkeys["nwlx"]
has_p := has_pl || has_pg
lbb := has_u && has_p
if fem.Global.Sim.Data.NoLBB {
lbb = false
}
// buffers
pvd := make(map[string]*bytes.Buffer)
geo := make(map[string]*bytes.Buffer)
vtu := make(map[string]*bytes.Buffer)
if _, ok := out.Dom.YandC["ux"]; ok {
pvd["u"] = new(bytes.Buffer)
geo["u"] = new(bytes.Buffer)
vtu["u"] = new(bytes.Buffer)
}
if _, ok := out.Dom.YandC["fl"]; ok {
pvd["fl"] = new(bytes.Buffer)
geo["fl"] = new(bytes.Buffer)
vtu["fl"] = new(bytes.Buffer)
}
if _, ok := out.Dom.YandC["pl"]; ok {
pvd["pl"] = new(bytes.Buffer)
geo["pl"] = new(bytes.Buffer)
vtu["pl"] = new(bytes.Buffer)
}
if _, ok := out.Dom.YandC["pg"]; ok {
pvd["pg"] = new(bytes.Buffer)
geo["pg"] = new(bytes.Buffer)
vtu["pg"] = new(bytes.Buffer)
}
if len(out.Ipkeys) > 0 {
pvd["ips"] = new(bytes.Buffer)
geo["ips"] = new(bytes.Buffer)
vtu["ips"] = new(bytes.Buffer)
}
if exnwl {
pvd["ex_nwl"] = new(bytes.Buffer)
geo["ex_nwl"] = new(bytes.Buffer)
vtu["ex_nwl"] = new(bytes.Buffer)
}
// extrapolated values keys
extrap_keys := []string{"nwlx", "nwly"}
if ndim == 3 {
extrap_keys = []string{"nwlx", "nwly", "nwlz"}
}
// headers
for _, b := range pvd {
pvd_header(b)
}
// process results
for tidx, t := range out.Sum.OutTimes {
// input results into domain
if !out.Dom.In(out.Sum, tidx, true) {
chk.Panic("cannot load results into domain; please check log file")
}
// message
io.PfWhite("time = %g\r", t)
// generate topology
if tidx == 0 {
for label, b := range geo {
topology(b, label == "ips", lbb)
}
// allocate integration points values
ipvals = make([]map[string]float64, len(out.Ipoints))
for i, _ := range out.Ipoints {
ipvals[i] = make(map[string]float64)
}
}
// get integration points values @ time t
for i, p := range out.Ipoints {
vals := p.Calc(out.Dom.Sol)
for key, val := range vals {
ipvals[i][key] = val
}
}
// compute extrapolated values
if exnwl {
out.ComputeExtrapolatedValues(extrap_keys)
}
// for each data buffer
for label, b := range vtu {
// reset buffer
b.Reset()
// points data
if label == "ips" {
pdata_open(b)
if has_sig {
pdata_write(b, "sig", skeys, true)
}
if has_nwl {
pdata_write(b, "nwl", nwlkeys, true)
}
for key, _ := range out.Ipkeys {
if !is_sig[key] && !is_nwl[key] {
pdata_write(b, key, []string{key}, true)
}
}
pdata_close(b)
} else {
pdata_open(b)
pdata_write(b, label, label2keys[label], false)
pdata_close(b)
}
// cells data
cdata_write(b, label == "ips")
// write vtu file
vtu_write(geo[label], b, tidx, label)
}
// pvd
for label, b := range pvd {
pvd_line(b, tidx, t, label)
}
}
// write pvd files
for label, b := range pvd {
pvd_write(b, label)
}
}