Example #1
0
func main() {

	// input filename
	_, fnkey := io.ArgToFilename(0, "frame2d", ".sim", true)

	// simple problems
	var opts []*goga.Optimiser
	if fnkey == "simple" {
		io.Pf("\n\n\n")
		//P := []int{1}
		P := utl.IntRange2(1, 19)
		opts = make([]*goga.Optimiser, len(P))
		for i, problem := range P {
			opts[i] = solve_problem(fnkey, problem)
		}
	} else {
		opts = []*goga.Optimiser{solve_problem(fnkey, 0)}
	}
	if opts[0].PlotSet1 {
		return
	}

	if opts[0].Nsamples > 1 {
		io.Pf("\n")
		rpt := goga.NewTexReport(opts)
		rpt.ShowDEC = false
		rpt.Type = 4
		rpt.TextSize = ""
		rpt.Title = "FORM Reliability: " + fnkey
		rpt.Fnkey = "rel-" + fnkey
		rpt.Generate()
	}
}
Example #2
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "sg111", ".sim", true)

	// results
	out.Start(filename, 0, 0)
	out.Define("tip", out.N{1})
	out.LoadResults(nil)

	// plot FEM results
	out.Plot("t", "uy", "tip", plt.Fmt{C: "r", Ls: "None", M: ".", L: "gofem"}, -1)

	// analytical solution
	tAna := utl.LinSpace(0, 5, 101)
	uyAna := make([]float64, len(tAna))
	for i, t := range tAna {
		uyAna[i] = solution_uy(t, 1.0)
	}

	// save
	plt.SetForPng(0.8, 400, 200)
	out.Draw("/tmp", fnkey+".png", false, func(i, j, n int) {
		plt.Plot(tAna, uyAna, "'g-', clip_on=0, label='analytical'")
	})
}
Example #3
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "rjoint01", ".sim", true)

	// results
	out.Start(filename, 0, 0)
	out.Define("p0", out.P{{-3, 0}}) // -3=tag, first ip
	out.Define("p1", out.P{{-3, 1}}) // -3=tag, second ip
	out.Define("p2", out.P{{-3, 2}}) // -3=tag, third ip
	out.LoadResults(nil)
	mtau0 := out.GetRes("tau", "p0", -1)
	mtau1 := out.GetRes("tau", "p1", -1)
	mtau2 := out.GetRes("tau", "p2", -1)
	for i := 0; i < len(out.Times); i++ {
		mtau0[i] *= -1
		mtau1[i] *= -1
		mtau2[i] *= -1
	}

	// plot FEM results
	out.Plot("ompb", mtau0, "p0", plt.Fmt{C: "r", Ls: "-", M: "."}, -1)
	out.Plot("ompb", mtau1, "p1", plt.Fmt{C: "g", Ls: "-", M: "."}, -1)
	out.Plot("ompb", mtau2, "p2", plt.Fmt{C: "b", Ls: "-", M: "."}, -1)
	out.Csplot.Ylbl = "$-\\tau$"

	// save
	plt.SetForPng(0.8, 400, 200)
	out.Draw("/tmp", fnkey+".png", false, nil)
}
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "sg111", ".sim", true)

	// fem
	if !fem.Start(filename, false, false, false) {
		io.PfRed("Start failed\n")
		return
	}
	dom, sum, ok := fem.AllocSetAndInit(0, true, true)
	if !ok {
		io.PfRed("AllocSetAndInit failed\n")
		return
	}

	// selected node and dof index
	nidx := 1
	didx := 1

	// gofem
	ntout := len(sum.OutTimes)
	uy := make([]float64, ntout)
	for tidx, _ := range sum.OutTimes {

		// read results from file
		if !dom.In(sum, tidx, true) {
			io.PfRed("plot_spo751: cannot read solution\n")
			return
		}

		// collect results for load versus time plot
		nod := dom.Nodes[nidx]
		eq := nod.Dofs[didx].Eq
		uy[tidx] = dom.Sol.Y[eq]

		// check
		if math.Abs(dom.Sol.T-sum.OutTimes[tidx]) > 1e-14 {
			io.PfRed("output times do not match time in solution array\n")
			return
		}
	}

	// plot fem results
	plt.SetForPng(0.8, 400, 200)
	plt.Plot(sum.OutTimes, uy, "'ro-', clip_on=0, label='gofem'")

	// analytical solution
	tAna := utl.LinSpace(0, 5, 101)
	uyAna := make([]float64, len(tAna))
	for i, t := range tAna {
		uyAna[i] = solution_uy(t, 1.0)
	}
	plt.Plot(tAna, uyAna, "'g-', clip_on=0, label='analytical'")

	// save
	plt.Gll("$t$", "$u_y$", "")
	plt.SaveD("/tmp", fnkey+".png")
}
Example #5
0
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)
}
Example #6
0
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)
	}
}
Example #7
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "rjoint01", ".sim", true)

	// fem
	if !fem.Start(filename, false, false, false) {
		io.PfRed("Start failed\n")
		return
	}
	dom, sum, ok := fem.AllocSetAndInit(0, true, true)
	if !ok {
		io.PfRed("AllocSetAndInit failed\n")
		return
	}

	// rjoint element
	eid := 2
	ele := dom.Elems[eid].(*fem.Rjoint)
	ipd := ele.OutIpsData()

	// load results from file
	n := len(sum.OutTimes)
	mtau0 := make([]float64, n)
	mtau1 := make([]float64, n)
	mtau2 := make([]float64, n)
	ompb0 := make([]float64, n)
	ompb1 := make([]float64, n)
	ompb2 := make([]float64, n)
	for i, _ := range sum.OutTimes {
		if !dom.In(sum, i, true) {
			io.PfRed("cannot read solution\n")
			return
		}
		res0 := ipd[0].Calc(dom.Sol)
		res1 := ipd[1].Calc(dom.Sol)
		res2 := ipd[2].Calc(dom.Sol)
		mtau0[i] = -res0["tau"]
		mtau1[i] = -res1["tau"]
		mtau2[i] = -res2["tau"]
		ompb0[i] = res0["ompb"]
		ompb1[i] = res1["ompb"]
		ompb2[i] = res2["ompb"]
	}

	// plot
	plt.SetForPng(0.8, 400, 200)
	plt.Plot(ompb0, mtau0, "'r-', marker='.', label='p0', clip_on=0")
	plt.Plot(ompb1, mtau1, "'g-', marker='.', label='p1', clip_on=0")
	plt.Plot(ompb2, mtau2, "'b-', marker='.', label='p2', clip_on=0")
	plt.Gll("$\\bar{\\omega}_p$", "$-\\tau$", "")
	plt.SaveD("/tmp", fnkey+".png")
}
Example #8
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "a-coarse-elast-d2-q9.sim", ".sim", true)

	// start analysis process
	out.Start(filename, 0, 0)

	// define entities
	out.Define("A B C D E", out.N{-1, -2, -3, -4, -5})                       // top => bottom
	out.Define("a b c d e", out.P{{18, 8}, {8, 8}, {4, 8}, {30, 8}, {0, 0}}) // top => bottom

	// load results
	out.LoadResults(nil)

	// styles
	me := 10
	S := []plt.Fmt{
		plt.Fmt{C: "b", M: "*", Me: me},
		plt.Fmt{C: "g", M: "o", Me: me},
		plt.Fmt{C: "m", M: "x", Me: me},
		plt.Fmt{C: "orange", M: "+", Me: me},
		plt.Fmt{C: "r", M: "^", Me: me},
	}

	// pl
	out.Splot("liquid pressure")
	for i, l := range []string{"A", "B", "C", "D", "E"} {
		out.Plot("t", "pl", l, S[i], -1)
	}

	// uy
	out.Splot("displacements")
	for i, l := range []string{"A", "B", "C", "D", "E"} {
		out.Plot("t", "uy", l, S[i], -1)
	}

	out.Splot("liquid saturation")
	for i, l := range []string{"a", "b", "c", "d", "e"} {
		out.Plot("t", "sl", l, S[i], -1)
	}

	out.Splot("stresses")
	for i, l := range []string{"a", "b", "c", "d", "e"} {
		out.Plot("t", "sy", l, S[i], -1)
	}

	// show
	plt.SetForPng(1, 500, 200)
	out.Draw("/tmp", "up_indentation2d_unsat_"+fnkey+".png", false, nil)
}
Example #9
0
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)
}
Example #10
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "sg1121", ".sim", true)

	// results
	out.Start(filename, 0, 0)
	out.Define("A", out.N{30})
	out.LoadResults(nil)

	// plot FEM results
	out.Plot("t", "uy", "A", plt.Fmt{C: "k", Ls: "-", L: "gofem"}, -1)

	// old results
	b, err := io.ReadFile("cmp/sg1121gofemold.json")
	if err != nil {
		io.PfRed("cannot read comparison file\n")
		return
	}
	var gofemold struct {
		Time, Uy30 []float64
	}
	err = json.Unmarshal(b, &gofemold)
	if err != nil {
		io.PfRed("cannot unmarshal comparison file\n")
		return
	}

	// mechsys results
	_, res, err := io.ReadTable("cmp/sg1121mechsysN30.cmp")
	if err != nil {
		io.PfRed("cannot read mechsys comparison file\n")
		return
	}

	// save
	plt.SetForPng(0.8, 400, 200)
	out.Draw("/tmp", fnkey+".png", false, func(i, j, n int) {
		plt.Plot(gofemold.Time, gofemold.Uy30, "'r-', lw=2, label='gofemOld'")
		plt.Plot(res["Time"], res["uy"], "'b-', label='mechsys'")
	})
}
Example #11
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "d2-simple-flux", ".sim", true)

	// start analysis process
	out.Extrap = []string{"nwlx", "nwly"}
	out.Start(filename, 0, 0)

	// define entities
	out.Define("top-middle", out.At{5, 3})
	out.Define("section-A", out.N{-1})
	out.Define("section-B", out.Along{{0, 0}, {10, 0}})

	// load results
	out.LoadResults(nil)

	// compute water discharge along section-A
	nwlx_TM := out.GetRes("ex_nwlx", "top-middle", -1)
	Q := out.Integrate("ex_nwlx", "section-A", "y", -1)
	io.PfYel("Q = %g m³/s [answer: 0.0003]\n", Q)

	// plot
	kt := len(out.Times) - 1
	out.Splot("")
	out.Plot("pl", "y", "section-A", plt.Fmt{L: "t=0"}, 0)
	out.Plot("pl", "y", "section-A", plt.Fmt{L: io.Sf("t=%g", out.Times[kt])}, kt)
	out.Splot("")
	out.Plot("x", "pl", "section-B", plt.Fmt{L: "t=0"}, 0)
	out.Plot("x", "pl", "section-B", plt.Fmt{L: io.Sf("t=%g", out.Times[kt])}, kt)
	out.Splot("")
	out.Plot("t", nwlx_TM, "top-middle", plt.Fmt{}, -1)
	out.Csplot.Ylbl = "$n_{\\ell}\\cdot w_{\\ell x}$"

	// save
	plt.SetForPng(1.5, 400, 200)
	out.Draw("/tmp", "seep_simple_flux_"+fnkey+".png", false, func(i, j, nplots int) {
		if i == 2 && j == 1 {
			plt.Plot([]float64{0, 10}, []float64{10, 9}, "'k--'")
		}
	})
}
Example #12
0
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

}
Example #13
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "a-coarse-elast-d2-q9", ".sim", true)

	// start analysis process
	out.Start(filename, 0, 0)

	// define entities
	out.Define("a", out.P{{18, 8}})

	// load results
	out.LoadResults(nil)

	nf_a := out.GetRes("nf", "a", -1)
	pl_a := out.GetRes("pl", "a", -1)
	pc_a := make([]float64, len(pl_a))
	for i, _ := range pl_a {
		pc_a[i] = -pl_a[i]
	}

	out.Splot("LRM")
	_, d, _ := io.ReadTable("lrm.dat")
	plt.Plot(d["pc"], d["sl"], "'c-',lw=2")

	out.Plot(pc_a, "sl", "a", plt.Fmt{M: "o"}, -1)
	out.Csplot.Xlbl = "$p_c$"

	out.Splot("porosity")
	out.Plot("t", nf_a, "a", plt.Fmt{M: "+"}, -1)
	out.Csplot.Ylbl = "$n_f$"

	// show
	plt.SetForPng(1.2, 500, 200)
	out.Draw("/tmp", "up_indentation2d_unsat_lrm_"+fnkey+".png", false, nil)
}
Example #14
0
func runone(ncpu int) (nsol, tf int, elaspsedTime time.Duration) {

	// input filename
	fn, fnkey := io.ArgToFilename(0, "ground10", ".sim", true)

	// GA parameters
	var opt goga.Optimiser
	opt.Read("ga-" + fnkey + ".json")
	opt.GenType = "rnd"
	nsol, tf = opt.Nsol, opt.Tf
	postproc := true
	if ncpu > 0 {
		opt.Ncpu = ncpu
		postproc = false
	}

	// FEM
	data := make([]*FemData, opt.Ncpu)
	for i := 0; i < opt.Ncpu; i++ {
		data[i] = NewData(fn, fnkey, i)
	}
	io.Pforan("MaxWeight = %v\n", data[0].MaxWeight)

	// set integers
	if data[0].Opt.BinInt {
		opt.CxInt = goga.CxInt
		opt.MtInt = goga.MtIntBin
		opt.BinInt = data[0].Ncells
	}

	// set floats
	opt.FltMin = make([]float64, data[0].Nareas)
	opt.FltMax = make([]float64, data[0].Nareas)
	for i := 0; i < data[0].Nareas; i++ {
		opt.FltMin[i] = data[0].Opt.Amin
		opt.FltMax[i] = data[0].Opt.Amax
	}

	// initialise optimiser
	opt.Nova = 2 // weight and deflection
	opt.Noor = 4 // mobility, feasibility, maxdeflection, stress
	opt.Init(goga.GenTrialSolutions, func(sol *goga.Solution, cpu int) {
		mob, fail, weight, umax, _, errU, errS := data[cpu].RunFEM(sol.Int, sol.Flt, 0, false)
		sol.Ova[0] = weight
		sol.Ova[1] = umax
		sol.Oor[0] = mob
		sol.Oor[1] = fail
		sol.Oor[2] = errU
		sol.Oor[3] = errS
	}, nil, 0, 0, 0)

	// initial solutions
	var sols0 []*goga.Solution
	if false {
		sols0 = opt.GetSolutionsCopy()
	}

	// benchmark
	initialTime := time.Now()
	defer func() {
		elaspsedTime = time.Now().Sub(initialTime)
	}()

	// solve
	opt.Verbose = true
	opt.Solve()
	goga.SortByOva(opt.Solutions, 0)

	// post processing
	if !postproc {
		return
	}

	// check
	nfailed, front0 := goga.CheckFront0(&opt, true)

	// save results
	var log, res bytes.Buffer
	io.Ff(&log, opt.LogParams())
	io.Ff(&res, PrintSolutions(data[0], opt.Solutions))
	io.Ff(&res, io.Sf("\n\nnfailed = %d\n", nfailed))
	io.WriteFileVD("/tmp/goga", fnkey+".log", &log)
	io.WriteFileVD("/tmp/goga", fnkey+".res", &res)

	// plot Pareto-optimal front
	feasibleOnly := true
	plt.SetForEps(0.8, 350)
	if strings.HasPrefix(fnkey, "ground10") {
		_, ref, _ := io.ReadTable("p460_fig300.dat")
		plt.Plot(ref["w"], ref["u"], "'b-', label='reference'")
	}
	fmtAll := &plt.Fmt{L: "final solutions", M: ".", C: "orange", Ls: "none", Ms: 3}
	fmtFront := &plt.Fmt{L: "final Pareto front", C: "r", M: "o", Ms: 3, Ls: "none"}
	goga.PlotOvaOvaPareto(&opt, sols0, 0, 1, feasibleOnly, fmtAll, fmtFront)
	plt.Gll("weight ($f_0$)", "deflection ($f_1)$", "") //, "leg_out=1, leg_ncol=4, leg_hlen=1.5")
	if strings.HasPrefix(fnkey, "ground10") {
		plt.AxisRange(1800, 14000, 1, 6)
	}

	// plot selected results
	ia, ib, ic, id, ie := 0, 0, 0, 0, 0
	nfront0 := len(front0)
	io.Pforan("nfront0 = %v\n", nfront0)
	if nfront0 > 4 {
		ib = nfront0 / 10
		ic = nfront0 / 5
		id = nfront0 / 2
		ie = nfront0 - 1
	}
	A := front0[ia]
	B := front0[ib]
	C := front0[ic]
	D := front0[id]
	E := front0[ie]
	wid, hei := 0.20, 0.10
	draw_truss(data[0], "A", A, 0.17, 0.75, wid, hei)
	draw_truss(data[0], "B", B, 0.20, 0.55, wid, hei)
	draw_truss(data[0], "C", C, 0.28, 0.33, wid, hei)
	draw_truss(data[0], "D", D, 0.47, 0.22, wid, hei)
	draw_truss(data[0], "E", E, 0.70, 0.18, wid, hei)

	// save figure
	plt.SaveD("/tmp/goga", fnkey+".eps")

	// tex file
	title := "Shape and topology optimisation. Results."
	label := "topoFront"
	document := true
	compact := true
	tex_results("/tmp/goga", "tmp_"+fnkey, title, label, data[0], A, B, C, D, E, document, compact)
	document = false
	tex_results("/tmp/goga", fnkey, title, label, data[0], A, B, C, D, E, document, compact)
	return
}
Example #15
0
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)

}
Example #16
0
func main() {

	// catch errors
	defer func() {
		if err := recover(); err != nil {
			io.PfRed("ERROR: %v\n", err)
		}
	}()

	// input data
	mshfn, fnkey := io.ArgToFilename(0, "data/sgm57", ".msh", true)

	// old mesh
	var old OldMesh

	// read file
	b, err := io.ReadFile(mshfn)
	if err != nil {
		chk.Panic("%v", err)
	}

	// decode
	err = json.Unmarshal(b, &old)
	if err != nil {
		chk.Panic("%v", err)
	}

	// verts: find largest strings
	var ndim int
	L := make([]int, 5)
	for _, v := range old.Verts {
		L[0] = utl.Imax(L[0], len(io.Sf("%d", v.Id)))
		L[1] = utl.Imax(L[1], len(io.Sf("%d", v.Tag)))
		for j, x := range v.C {
			L[2+j] = utl.Imax(L[2+j], len(io.Sf("%g", x)))
		}
		ndim = len(v.C)
	}
	S := make([]string, 5)
	for i, l := range L {
		S[i] = io.Sf("%d", l)
	}

	// write vertices
	buf := new(bytes.Buffer)
	io.Ff(buf, "{\n  \"verts\":[\n")
	for i, v := range old.Verts {
		if i > 0 {
			io.Ff(buf, ",\n")
		}
		io.Ff(buf, "    {\"i\":%"+S[0]+"d, \"t\":%"+S[1]+"d, \"x\":[", v.Id, v.Tag)
		for j, x := range v.C {
			if j > 0 {
				io.Ff(buf, ", ")
			}
			io.Ff(buf, "%"+S[2+j]+"g", x)
		}
		io.Ff(buf, "] }")
	}

	// cells: find largest strings
	n := 30
	L = make([]int, n*2)
	for _, c := range old.Cells {
		L[0] = utl.Imax(L[0], len(io.Sf("%d", c.Id)))
		L[1] = utl.Imax(L[1], len(io.Sf("%d", c.Tag)))
		L[2] = utl.Imax(L[2], len(io.Sf("%d", c.Part)))
		for j, v := range c.Verts {
			L[3+j] = utl.Imax(L[3+j], len(io.Sf("%d", v)))
		}
	}
	S = make([]string, n*2)
	for i, l := range L {
		S[i] = io.Sf("%d", l)
	}
	io.Ff(buf, "\n  ],")

	// write cells
	io.Ff(buf, "\n  \"cells\":[\n")
	for i, c := range old.Cells {
		if i > 0 {
			io.Ff(buf, ",\n")
		}
		io.Ff(buf, "    {\"i\":%"+S[0]+"d, \"t\":%"+S[1]+"d, \"p\":%"+S[2]+"d, \"y\":%q, \"v\":[", c.Id, c.Tag, c.Part, c.Type)
		for j, v := range c.Verts {
			if j > 0 {
				io.Ff(buf, ", ")
			}
			io.Ff(buf, "%"+S[3+j]+"d", v)
		}
		io.Ff(buf, "]")
		if len(c.FTags) > 0 {
			io.Ff(buf, ", ")
			if ndim == 2 {
				io.Ff(buf, "\"et\":[")
			} else {
				io.Ff(buf, "\"ft\":[")
			}
			for j, t := range c.FTags {
				if j > 0 {
					io.Ff(buf, ", ")
				}
				io.Ff(buf, "%d", t)
			}
			io.Ff(buf, "]")
		}
		io.Ff(buf, " }")
	}
	io.Ff(buf, "\n  ]\n}")
	io.WriteFileVD("/tmp/gosl", fnkey+"-new.msh", buf)

	// check
	m, err := msh.Read("/tmp/gosl/" + fnkey + "-new.msh")
	if err != nil {
		chk.Panic("cannot read new mesh:\n%v", err)
	}
	m.Check()
}
Example #17
0
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 <%s> written\n", fn)

	// show figure
	plt.AxisYrange(0, 1)
	plt.Cross("")
	plt.Gll("$p_c$", "$s_{\\ell}$", "")
	plt.Show()
}
Example #18
0
func main() {

	// catch errors
	defer func() {
		if err := recover(); err != nil {
			io.PfRed("ERROR: %v\n", err)
		}
	}()

	// filename
	filename, fnkey := io.ArgToFilename(0, "spo751", ".sim", true)

	// constants
	nidx := 20 // selected node at outer surface
	didx := 0  // selected  dof index for plot
	nels := 4  // number of elements
	nips := 4  // number of ips

	// selected P values for stress plot
	Psel := []float64{100, 140, 180, 190}
	tolPsel := 2.0    // tolerance to compare P
	GPa2MPa := 1000.0 // conversion factor

	// input data
	Pcen := 200.0         // [Mpa]
	a, b := 100.0, 200.0  // [mm], [mm]
	E, ν := 210000.0, 0.3 // [MPa], [-]
	σy := 240.0           // [MPa]

	// analytical solution
	var sol ana.PressCylin
	sol.Init([]*fun.Prm{
		&fun.Prm{N: "a", V: a}, &fun.Prm{N: "b", V: b},
		&fun.Prm{N: "E", V: E}, &fun.Prm{N: "ν", V: ν},
		&fun.Prm{N: "σy", V: σy},
	})
	np := 41
	P_ana, Ub_ana := sol.CalcPressDisp(np)
	R_ana, Sr_ana, St_ana := sol.CalcStresses(Psel, np)

	// fem
	analysis := fem.NewFEM(filename, "", false, false, true, false, true, 0)
	err := analysis.SetStage(0)
	if err != nil {
		chk.Panic("SetStage failed:\n%v", err)
	}
	err = analysis.ZeroStage(0, true)
	if err != nil {
		chk.Panic("ZeroStage failed:\n%v", err)
	}
	dom := analysis.Domains[0]
	sum := analysis.Summary

	// gofem results
	nto := len(sum.OutTimes)
	P := make([]float64, nto)
	Ub := make([]float64, nto)
	R := utl.Deep3alloc(len(Psel), nels, nips)
	Sr := utl.Deep3alloc(len(Psel), nels, nips)
	St := utl.Deep3alloc(len(Psel), nels, nips)
	i := 0
	for tidx, t := range sum.OutTimes {

		// read results from file
		err = dom.Read(sum, tidx, 0, true)
		if err != nil {
			chk.Panic("cannot read solution\n%v", err)
		}

		// collect results for load versus displacement plot
		nod := dom.Nodes[nidx]
		eq := nod.Dofs[didx].Eq
		P[tidx] = t * Pcen
		Ub[tidx] = dom.Sol.Y[eq]

		// stresses
		if isPsel(Psel, P[tidx], tolPsel) {
			for j, ele := range dom.ElemIntvars {
				e := ele.(*fem.ElemU)
				ipsdat := e.OutIpsData()
				for k, dat := range ipsdat {
					res := dat.Calc(dom.Sol)
					x, y := dat.X[0], dat.X[1]
					sx := res["sx"] * GPa2MPa
					sy := res["sy"] * GPa2MPa
					sxy := res["sxy"] * GPa2MPa / math.Sqrt2
					R[i][j][k], Sr[i][j][k], St[i][j][k], _ = ana.PolarStresses(x, y, sx, sy, sxy)
				}
			}
			i++
		}
	}

	// auxiliary data for plotting stresses
	colors := []string{"r", "m", "g", "k", "y", "c", "r", "m"}
	markers1 := []string{"o", "s", "x", ".", "^", "*", "o", "s"}
	markers2 := []string{"+", "+", "+", "+", "+", "+", "+", "+"}

	// plot load displacements
	plt.SetForPng(0.8, 400, 200)
	if true {
		//if false {
		plt.Plot(Ub_ana, P_ana, "'b-', ms=2, label='solution', clip_on=0")
		plt.Plot(Ub, P, "'r.--', label='fem: outer', clip_on=0")
		plt.Gll("$u_x\\;\\mathrm{[mm]}$", "$P\\;\\mathrm{[MPa]}$", "")
		plt.SaveD("/tmp", io.Sf("gofem_%s_disp.png", fnkey))
	}

	// plot radial stresses
	if true {
		//if false {
		plt.Reset()
		for i, Pval := range Psel {
			plt.Plot(R_ana, Sr_ana[i], "'b-'")
			for k := 0; k < nips; k++ {
				for j := 0; j < nels; j++ {
					args := io.Sf("'%s%s'", colors[i], markers1[i])
					if k > 1 {
						args = io.Sf("'k%s', ms=10", markers2[i])
					}
					if k == 0 && j == 0 {
						args += io.Sf(", label='P=%g'", Pval)
					}
					plt.PlotOne(R[i][j][k], Sr[i][j][k], args)
				}
			}
		}
		plt.Gll("$r\\;\\mathrm{[mm]}$", "$\\sigma_r\\;\\mathrm{[MPa]}$", "leg_loc='lower right'")
		plt.AxisXrange(a, b)
		plt.SaveD("/tmp", io.Sf("gofem_%s_sr.png", fnkey))
	}

	// plot tangential stresses
	if true {
		//if false {
		plt.Reset()
		for i, Pval := range Psel {
			plt.Plot(R_ana, St_ana[i], "'b-'")
			for k := 0; k < nips; k++ {
				for j := 0; j < nels; j++ {
					args := io.Sf("'%s%s'", colors[i], markers1[i])
					if k > 1 {
						args = io.Sf("'k%s', ms=10", markers2[i])
					}
					if k == 0 && j == 0 {
						args += io.Sf(", label='P=%g'", Pval)
					}
					plt.PlotOne(R[i][j][k], St[i][j][k], args)
				}
			}
		}
		plt.Gll("$r\\;\\mathrm{[mm]}$", "$\\sigma_t\\;\\mathrm{[MPa]}$", "leg_loc='upper left'")
		plt.SaveD("/tmp", io.Sf("gofem_%s_st.png", fnkey))
	}
}
Example #19
0
func main() {

	// filename
	filename, fnkey := io.ArgToFilename(0, "onepulse-qua9co.sim", ".sim", true)

	// start analysis process
	out.Start(filename, 0, 0)

	// define entities
	out.Define("A B C D E", out.N{-5, -4, -3, -2, -1})
	out.Define("a b c d e", out.P{{15, 8}, {13, 8}, {8, 8}, {4, 8}, {0, 0}})
	out.Define("left-side", out.Along{{0, 0}, {0, 3}})

	// load results
	out.LoadResults(nil)

	// styles
	me := 10
	S := []plt.Fmt{
		plt.Fmt{C: "b", M: "*", Me: me},
		plt.Fmt{C: "g", M: "o", Me: me},
		plt.Fmt{C: "m", M: "x", Me: me},
		plt.Fmt{C: "orange", M: "+", Me: me},
		plt.Fmt{C: "r", M: "^", Me: me},
	}

	// pl
	out.Splot("liquid pressure")
	for i, l := range []string{"A", "B", "C", "D", "E"} {
		out.Plot("t", "pl", l, S[i], -1)
	}

	// uy
	out.Splot("displacements")
	for i, l := range []string{"A", "B", "C", "D", "E"} {
		out.Plot("t", "uy", l, S[i], -1)
	}

	// sl
	out.Splot("liquid saturation")
	for i, l := range []string{"a", "b", "c", "d", "e"} {
		out.Plot("t", "sl", l, S[i], -1)
	}

	// sy
	out.Splot("stresses")
	for i, l := range []string{"a", "b", "c", "d", "e"} {
		out.Plot("t", "sy", l, S[i], -1)
	}

	// pl
	out.Splot("pressure along column")
	I, _ := utl.GetITout(out.Times, []float64{0, 1000, 2000, 3000, 4000}, 0.1)
	for _, i := range I {
		t := out.Times[i]
		out.Plot("pl", "y", "left-side", plt.Fmt{L: io.Sf("t=%g", t)}, i)
	}

	// empty
	out.Splot("")

	// save
	plt.SetForPng(1.2, 800, 200)
	out.Draw("/tmp", "up_3mcolumn_dessication_"+fnkey+".png", false, nil)
}
Example #20
0
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)
	}
}
Example #21
0
func main() {

	// catch errors
	defer func() {
		if err := recover(); err != nil {
			io.PfRed("ERROR: %v\n", err)
		}
	}()

	// input data file
	var in Input
	in.inpfn, _ = io.ArgToFilename(0, "data/loccmdrv1", ".inp", true)

	// read and parse input data
	b, err := io.ReadFile(in.inpfn)
	if err != nil {
		io.PfRed("cannot read %s\n", in.inpfn)
		return
	}
	err = json.Unmarshal(b, &in)
	if err != nil {
		io.PfRed("cannot parse %s\n", in.inpfn)
		return
	}
	in.PostProcess()

	// print input table
	io.Pf("%v\n", in)

	// load simulation
	sim := inp.ReadSim(in.Dir+"/"+in.SimFn, "", false, 0)
	if sim == nil {
		io.PfRed("cannot load simulation\n")
		return
	}

	// get material data
	mat := sim.MatParams.Get(in.MatName)
	if mat == nil {
		io.PfRed("cannot get material\n")
		return
	}
	//io.Pfcyan("mat = %v\n", mat)

	// get and initialise model
	mdl, _ := msolid.GetModel(in.SimFn, in.MatName, mat.Model, false)
	if mdl == nil {
		io.PfRed("cannot allocate model\n")
		return
	}
	ndim := 3
	pstress := false
	mdl.Init(ndim, pstress, mat.Prms)
	//io.Pforan("mdl = %v\n", mdl)

	// load path
	var pth msolid.Path
	err = pth.ReadJson(ndim, path.Join(in.Dir, in.PathFn))
	if err != nil {
		io.PfRed("cannot read path file %v\n", err)
		return
	}
	//io.PfYel("pth = %v\n", pth)

	// driver
	var drv msolid.Driver
	drv.InitWithModel(ndim, mdl)

	// run
	err = drv.Run(&pth)
	if err != nil {
		io.Pfred("driver: Run failed: %v\n", err)
	}

	// plot
	//if false {
	if true {
		var plr msolid.Plotter
		plr.SetFig(false, in.FigEps, in.FigProp, in.FigWid, "/tmp", "cmd_"+in.SimFn)
		var epm msolid.EPmodel
		if m, ok := mdl.(msolid.EPmodel); ok {
			plr.SetModel(m)
			epm = m
		}
		if epm != nil {
			//plr.Phi = epm.Get_phi()
			b := epm.Get_bsmp()
			epm.Set_bsmp(0)
			plr.YsClr0 = "magenta"
			plr.Plot(in.PlotSet, drv.Res, nil, true, false)
			epm.Set_bsmp(b)
		}
		plr.YsClr0 = "green"
		plr.Plot(in.PlotSet, drv.Res, drv.Eps, false, true)
	}

	// plot ys
	if false {
		//if true {
		plt.Reset()
		m := mdl.(*msolid.SmpInvs)
		φ := m.Get_phi()
		σcCte := 10.0
		M := tsr.Phi2M(φ, "oct")
		rmin, rmax := 0.0, 1.28*M*σcCte
		nr, nα := 31, 81
		//nr,   nα   := 31, 1001
		npolarc := true
		simplec := false
		only0 := false
		grads := false
		showpts := false
		ferr := 10.0
		tsr.PlotOct("fig_isofun02.png", σcCte, rmin, rmax, nr, nα, φ, m.Isof.Fa, m.Isof.Ga,
			npolarc, simplec, only0, grads, showpts, true, true, ferr)
	}
}
Example #22
0
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)
}
Example #23
0
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")
}