func main() {
// input data
fn, fnk := io.ArgToFilename(0, "nurbs01", ".msh", true)
ctrl := io.ArgToBool(1, true)
ids := io.ArgToBool(2, true)
useminmax := io.ArgToBool(3, false)
axisequal := io.ArgToBool(4, true)
xmin := io.ArgToFloat(5, 0)
xmax := io.ArgToFloat(6, 0)
ymin := io.ArgToFloat(7, 0)
ymax := io.ArgToFloat(8, 0)
eps := io.ArgToBool(9, false)
npts := io.ArgToInt(10, 41)
// print input table
io.Pf("\n%s\n", io.ArgsTable("INPUT ARGUMENTS",
"mesh filename", "fn", fn,
"show control points", "ctrl", ctrl,
"show ids", "ids", ids,
"use xmin,xmax,ymin,ymax", "useminmax", useminmax,
"enforce axis.equal", "axisequal", axisequal,
"min(x)", "xmin", xmin,
"max(x)", "xmax", xmax,
"min(y)", "ymin", ymin,
"max(y)", "ymax", ymax,
"generate eps instead of png", "eps", eps,
"number of divisions", "npts", npts,
))
// load nurbss
B := gm.ReadMsh(fnk)
// plot
if eps {
plt.SetForEps(0.75, 500)
} else {
plt.SetForPng(0.75, 500, 150)
}
for _, b := range B {
if ctrl {
b.DrawCtrl2d(ids, "", "")
}
b.DrawElems2d(npts, ids, "", "")
}
if axisequal {
plt.Equal()
}
if useminmax {
plt.AxisRange(xmin, xmax, ymin, ymax)
}
ext := ".png"
if eps {
ext = ".eps"
}
plt.Save(fnk + ext)
}
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)
// default input parameters
// read input parameters
fnamepath, _ := io.ArgToFilename(0, "", ".sim", true)
verbose := io.ArgToBool(1, true)
erasePrev := io.ArgToBool(2, true)
saveSummary := io.ArgToBool(3, true)
allowParallel := io.ArgToBool(4, true)
alias := io.ArgToString(5, "")
// message
if mpi.Rank() == 0 && verbose {
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")
io.Pf("\n%v\n", io.ArgsTable(
"filename path", "fnamepath", fnamepath,
"show messages", "verbose", verbose,
"erase previous results", "erasePrev", erasePrev,
"save summary", "saveSummary", saveSummary,
"allow parallel run", "allowParallel", allowParallel,
"word to add to results", "alias", alias,
))
}
// profiling?
defer utl.DoProf(false)()
// analysis data
readSummary := false
analysis := fem.NewFEM(fnamepath, alias, erasePrev, saveSummary, readSummary, allowParallel, verbose, 0)
// run simulation
err := analysis.Run()
if err != nil {
chk.Panic("Run failed:\n%v", err)
}
}
func (o Input) String() (l string) {
l = io.ArgsTable(
"input filename", "inpfn", o.inpfn,
"directory with .sim and .pat files", "Dir", o.Dir,
"simulation filename", "SimFn", o.SimFn,
"material name", "MatName", o.MatName,
"path filename", "PathFn", o.PathFn,
"plot set", "PlotSet", io.Sf("%v", o.PlotSet),
"fig: generate .eps instead of .png", "FigEps", o.FigEps,
"fig: proportion of figure", "FigProp", o.FigProp,
"fig: width of figure", "FigWid", o.FigWid,
)
return
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
var mshfn string
mshfn, fnkey = io.ArgToFilename(0, "data/d2-coarse", ".msh", true)
io.Pf("\n%s\n", io.ArgsTable(
"mesh filename", "mshfn", mshfn,
))
// read mesh
msh, err := inp.ReadMsh("", mshfn, 0)
if err != nil {
io.PfRed("cannot read mesh:\n%v", err)
return
}
ndim = msh.Ndim
verts = msh.Verts
cells = msh.Cells
dirout = "/tmp/gofem"
// buffers
geo := new(bytes.Buffer)
vtu := new(bytes.Buffer)
// generate topology
topology(geo)
// points data
pdata_write(vtu)
// cells data
cdata_write(vtu)
// write vtu file
vtu_write(geo, vtu)
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
simfile, _ := io.ArgToFilename(0, "simfile.sim", true)
zmin := io.ArgToFloat(1, 0.0)
zmax := io.ArgToFloat(2, 3.0)
npts := io.ArgToInt(3, 11)
io.Pf("\n%s\n", io.ArgsTable(
"simulation filename", "simfile", simfile,
"min elevation", "zmin", zmin,
"max elevation", "zmax", zmax,
"number of points", "npts", npts,
))
// 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 main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
matOld := io.ArgToString(0, "matOld.mat")
matNew := io.ArgToString(1, "matNew.mat")
convSymb := io.ArgToBool(2, true)
io.Pf("\n%s\n", io.ArgsTable(
"old material filename", "matOld", matOld,
"new material filenamen", "matNew", matNew,
"do convert symbols", "convSymb", convSymb,
))
// convert old => new
inp.MatfileOld2New("", matNew, matOld, convSymb)
io.Pf("conversion successful\n")
io.Pfblue2("file <matNew.mat> created\n")
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
filename, fnkey := io.ArgToFilename(0, "data/equations.txt", "", true)
io.Pf("\n%s\n", io.ArgsTable("INPUT ARGUMENTS",
"file with equations", "filename", filename,
))
io.Pforan("fnkey = %v\n", fnkey)
// open file
f, err := io.OpenFileR(filename)
if err != nil {
return
}
// constants
MAXNIDX := 100
INDICES := []string{"i", "j", "k", "l", "m", "n", "r", "s", "p", "q"}
// read file
var buf bytes.Buffer
io.ReadLinesFile(f, func(idx int, line string) (stop bool) {
// indices
l := line
for i := 0; i < MAXNIDX; i++ {
l = strings.Replace(l, io.Sf("[%d]", i), io.Sf("_{%d}", i), -1)
}
for _, idx := range INDICES {
l = strings.Replace(l, io.Sf("[%s]", idx), io.Sf("_{%s}", idx), -1)
}
// constants
l = strings.Replace(l, "math.Sqrt2", "\\sqrt{2}", -1)
l = strings.Replace(l, "SQ2", "\\sqrt{2}", -1)
// functions
l = strings.Replace(l, "math.Sqrt", "\\sqrt", -1)
l = strings.Replace(l, "math.Pow", "\\pow", -1)
l = strings.Replace(l, "math.Exp", "\\exp", -1)
l = strings.Replace(l, "math.Sin", "\\sin", -1)
l = strings.Replace(l, "math.Cos", "\\cos", -1)
// star
l = strings.Replace(l, "*", " \\, ", -1)
// colon-equal
l = strings.Replace(l, ":=", "=", -1)
// add to results
io.Ff(&buf, "%s\n", l)
return
})
// write file
io.WriteFileVD("/tmp/gosl", fnkey+".tex", &buf)
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
simfn, _ := io.ArgToFilename(0, "data/twoqua4", ".sim", true)
exnwl := io.ArgToBool(1, false)
stgidx := io.ArgToInt(2, 0)
io.Pf("\n%s\n", io.ArgsTable(
"simulation filename", "simfn", simfn,
"extrapolate nwl", "exnwl", exnwl,
"stage index", "stgidx", stgidx,
))
// 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 = out.Dom.Sim.DirOut
fnkey = out.Dom.Sim.Key
steady = out.Dom.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 out.Dom.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)
}
for ykey, _ := range out.Dom.Dof2Tnum {
if ykey == "ux" || ykey == "uy" || ykey == "uz" {
continue
}
pvd[ykey] = new(bytes.Buffer)
geo[ykey] = new(bytes.Buffer)
vtu[ykey] = new(bytes.Buffer)
label2keys[ykey] = []string{ykey}
}
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
err := out.Dom.Read(out.Sum, tidx, 0, true)
if err != nil {
chk.Panic("cannot load results into domain\n%v", err)
}
// 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)
}
}
// LogParams returns a log with current parameters
func (o *Parameters) LogParams() (l string) {
// sizes
l += io.ArgsTable("SIZES",
"number of objective values", "Nova", o.Nova,
"number of out-of-range values", "Noor", o.Noor,
"total number of solutions", "Nsol", o.Nsol,
"number of cpus", "Ncpu", o.Ncpu,
)
// time
l += "\n"
l += io.ArgsTable("TIME",
"final time", "Tf", o.Tf,
"delta time for exchange", "DtExc", o.DtExc,
"delta time for output", "DtOut", o.DtOut,
)
// options
l += "\n"
l += io.ArgsTable("OPTIONS",
"C-coefficient for differential evolution", "DEC", o.DEC,
"parallel", "Pll", o.Pll,
"seed for random numbers generator", "Seed", o.Seed,
"generation type: 'latin', 'halton', 'rnd'", "GenType", o.GenType,
"Latin Hypercube duplicates number", "LatinDup", o.LatinDup,
"minimum value for 'h' constraints", "EpsH", o.EpsH,
"show messages", "Verbose", o.Verbose,
"show messages in Stat", "VerbStat", o.VerbStat,
"show time messages", "VerbTime", o.VerbTime,
"generate all solutions together", "GenAll", o.GenAll,
"run many trials", "Nsamples", o.Nsamples,
"integers represent binary numbers", "BinInt", o.BinInt,
"clear flt if corresponding int is 0", "ClearFlt", o.ClearFlt,
"use exchange via tournament", "ExcTour", o.ExcTour,
"use exchange one randomly", "ExcOne", o.ExcOne,
"normalise float values", "NormFlt", o.NormFlt,
"use meshes to control points movement", "UseMesh", o.UseMesh,
"number of points along boundary / per iFlt (only if UseMesh==true)", "Nbry", o.Nbry,
)
// crossover and mutation of integers
l += "\n"
l += io.ArgsTable("CROSSOVER AND MUTATION OF INTS",
"probability of crossover for ints", "IntPc", o.IntPc,
"number of cuts in crossover of ints", "IntNcuts", o.IntNcuts,
"probability of mutation for ints", "IntPm", o.IntPm,
"number of changes during mutation of ints", "IntNchanges", o.IntNchanges,
)
// derived
l += "\n"
l += io.ArgsTable("DERIVED",
"number of floats", "Nflt", o.Nflt,
"number of integers", "Nint", o.Nint,
"number of (Xi,Xj) pairs", "NumXiXjPairs", o.NumXiXjPairs,
"number of points along the boundaries of one (Xi,Xj) plane", "NumXiXjBryPts", o.NumXiXjBryPts,
"total number of extra solutions due to all (Xi,Xj) boundaries", "NumExtraSols", o.NumExtraSols,
)
// extra
l += "\n"
l += io.ArgsTable("EXTRA",
"strategy", "Strategy", o.Strategy,
"plot set of graphs 1", "PlotSet1", o.PlotSet1,
"plot set of graphs 2", "PlotSet2", o.PlotSet2,
"problem number", "ProbNum", o.ProbNum,
)
return
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
simfn, _ := io.ArgToFilename(0, "elast", ".sim", true)
matname := io.ArgToString(1, "lrm1")
pcmax := io.ArgToFloat(2, 30.0)
npts := io.ArgToInt(3, 101)
// print input table
io.Pf("\n%s\n", io.ArgsTable(
"simulation filename", "simfn", simfn,
"material name", "matname", matname,
"max pc", "pcmax", pcmax,
"number of points", "npts", npts,
))
// load simulation
sim := inp.ReadSim(simfn, "lrm", false, 0)
if sim == nil {
io.PfRed("cannot load simulation\n")
return
}
// get material data
mat := sim.MatParams.Get(matname)
if mat == nil {
io.PfRed("cannot get material\n")
return
}
io.Pforan("mat = %v\n", mat)
// get and initialise model
mdl := mreten.GetModel(simfn, matname, mat.Model, false)
if mdl == nil {
io.PfRed("cannot allocate model\n")
return
}
mdl.Init(mat.Prms)
// plot drying path
d_Pc := utl.LinSpace(0, pcmax, npts)
d_Sl := make([]float64, npts)
d_Sl[0] = 1
var err error
for i := 1; i < npts; i++ {
d_Sl[i], err = mreten.Update(mdl, d_Pc[i-1], d_Sl[i-1], d_Pc[i]-d_Pc[i-1])
if err != nil {
io.PfRed("drying: cannot updated model\n%v\n", err)
return
}
}
plt.Plot(d_Pc, d_Sl, io.Sf("'b-', label='%s (dry)', clip_on=0", matname))
// plot wetting path
w_Pc := utl.LinSpace(pcmax, 0, npts)
w_Sl := make([]float64, npts)
w_Sl[0] = d_Sl[npts-1]
for i := 1; i < npts; i++ {
w_Sl[i], err = mreten.Update(mdl, w_Pc[i-1], w_Sl[i-1], w_Pc[i]-w_Pc[i-1])
if err != nil {
io.PfRed("wetting: cannot updated model\n%v\n", err)
return
}
}
plt.Plot(w_Pc, w_Sl, io.Sf("'c-', label='%s (wet)', clip_on=0", matname))
// save results
type Results struct{ Pc, Sl []float64 }
res := Results{append(d_Pc, w_Pc...), append(d_Sl, w_Sl...)}
var buf bytes.Buffer
enc := json.NewEncoder(&buf)
err = enc.Encode(&res)
if err != nil {
io.PfRed("cannot encode results\n")
return
}
fn := path.Join(sim.Data.DirOut, matname+".dat")
io.WriteFile(fn, &buf)
io.Pf("file <[1;34m%s[0m> written\n", fn)
// show figure
plt.AxisYrange(0, 1)
plt.Cross("")
plt.Gll("$p_c$", "$s_{\\ell}$", "")
plt.Show()
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
matfn, fnk := io.ArgToFilename(0, "materials", ".mat", true)
io.Pf("\n%s\n", io.ArgsTable(
"material filename", "matfn", matfn,
))
// skip variables
skip := "gref nowet α"
// skip parameters
skipp := make(map[string]bool)
for _, key := range io.SplitKeys(skip) {
skipp[key] = true
}
// Read
mdb := inp.ReadMat("", matfn)
// Get max number of parameters
nmaxprms := 0
for _, mdat := range mdb.Materials {
n := len(mdat.Prms)
if n > nmaxprms {
nmaxprms = n
}
}
// header
b := new(bytes.Buffer)
io.Ff(b, "\\documentclass[12pt,a4paper]{article}\n")
io.Ff(b, "\\usepackage[margin=2.0cm,footskip=0.5cm]{geometry}\n")
io.Ff(b, "\\usepackage[labelfont=bf,tableposition=top,aboveskip=4pt]{caption}\n")
io.Ff(b, "\\usepackage{tabularx}\n")
io.Ff(b, "\\usepackage{booktabs}\n")
io.Ff(b, "\n")
io.Ff(b, "\\title{Materials Table}\n")
io.Ff(b, "\\author{GoFem MatTable tool}\n")
io.Ff(b, "\n")
io.Ff(b, "\\begin{document}\n")
io.Ff(b, "\\maketitle\n")
// table with parameters
io.Ff(b, "\n")
io.Ff(b, "\\begin{table} \\centering\n")
io.Ff(b, "\\caption{Parameters from %s}\n", matfn)
io.Ff(b, "\\begin{tabularx}{\\linewidth}[c]{l %s} \\toprule\n", strings.Repeat("c", nmaxprms))
for i, mdat := range mdb.Materials {
necols := nmaxprms - len(mdat.Prms) // number of empty cols
// mat name
io.Ff(b, " %-20s", mdat.Name)
// parameters names
for _, param := range mdat.Prms {
io.Ff(b, " &%12s", ToTex(param.N))
}
io.Ff(b, " %s", strings.Repeat(" &", necols))
io.Ff(b, " \\\\\n")
// values
io.Ff(b, " %-20s", "")
for _, param := range mdat.Prms {
io.Ff(b, " &%12s", NumFormat(param.V))
}
io.Ff(b, " %s", strings.Repeat(" &", necols))
io.Ff(b, " \\\\\n")
// units
io.Ff(b, " %-20s", "")
for _, param := range mdat.Prms {
if param.U == "" {
io.Ff(b, " &%12v", "-")
} else {
io.Ff(b, " &%12v", UnitFormat(param.U))
}
}
io.Ff(b, " %s", strings.Repeat(" &", necols))
io.Ff(b, " \\\\\n")
if i < len(mdb.Materials)-1 {
io.Ff(b, " \\\\\n")
}
}
// footer
io.Ff(b, " \\bottomrule\n\\end{tabularx}\n\\label{tab:prms}\n\\end{table}\n")
io.Ff(b, "\\end{document}\n")
io.WriteFileV(fnk+".tex", b)
}
func main() {
// catch errors
defer func() {
if err := recover(); err != nil {
io.PfRed("ERROR: %v\n", err)
}
}()
// input data
simfnA, fnkA := io.ArgToFilename(0, "o2elastCO", ".sim", true)
skip := io.ArgToInt(1, 0)
simfnB, fnkB := io.ArgToFilename(2, "", ".sim", false)
labelA := io.ArgToString(3, "")
labelB := io.ArgToString(4, "")
// print input data
io.Pf("\n%s\n", io.ArgsTable(
"simulation filename", "simfnA", simfnA,
"number of initial increments to skip", "skip", skip,
"simulation filename for comparison", "simfnB", simfnB,
"label for histogram", "labelA", labelA,
"label for histogram", "labelB", labelB,
))
// read residuals
residA, fnkA := read_summary(simfnA)
residB, fnkB := read_summary(simfnB)
// residuals: it => residuals
io.Pf("\nResiduals A\n")
io.Pf("============\n")
residA.Print("%10.2e")
if simfnB != "" {
io.Pf("\nResiduals B\n")
io.Pf("============\n")
residB.Print("%10.2e")
}
io.Pf("\n")
// plot convergence curves
plot_conv_curve(fnkA, skip, residA)
if simfnB != "" {
plot_conv_curve(fnkB, skip, residB)
}
// plot histogram
io.Pf("\n")
X := [][]float64{count_iters(residA)}
labels := []string{fnkA}
if labelA != "" {
labels[0] = labelA
}
if simfnB != "" {
X = append(X, count_iters(residB))
labels = append(labels, fnkB)
if labelB != "" {
labels[1] = labelB
}
}
plt.Reset()
plt.SetForEps(0.75, 300)
plt.Hist(X, labels, "")
plt.Gll("number of iterations", "counts", "")
plt.SaveD("/tmp", "gofem_residplot_"+fnkA+"_"+fnkB+"_hist.eps")
}