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-rw-r--r--cirsim/component.go178
-rw-r--r--cirsim/models.go102
-rw-r--r--cirsim/node.go96
-rw-r--r--cirsim/simulation.go286
-rw-r--r--go.mod30
-rw-r--r--go.sum113
-rw-r--r--main.go18
7 files changed, 823 insertions, 0 deletions
diff --git a/cirsim/component.go b/cirsim/component.go
new file mode 100644
index 0000000..5b03fd2
--- /dev/null
+++ b/cirsim/component.go
@@ -0,0 +1,178 @@
+package cirsim
+
+import (
+ "fmt"
+ "io"
+ "log"
+
+ "fyne.io/fyne/v2"
+ "fyne.io/fyne/v2/canvas"
+ "fyne.io/fyne/v2/widget"
+ "github.com/wcharczuk/go-chart/v2"
+ "github.com/wcharczuk/go-chart/v2/drawing"
+)
+
+type Component struct {
+ widget.BaseWidget
+ Pos fyne.Position
+ Model Modeler
+ CurrentOverTime []float64
+ ANode *Node
+ BNode *Node
+ CurrentRange chart.Range
+ Image *canvas.Image
+ labels []*widget.Label
+ entries []*widget.Entry
+}
+
+func NewComponent(settings io.Reader, r chart.Range, nodes []*Node, update func()) *Component {
+ var c Component
+ var t string
+ var a int
+ var b int
+ _, err := fmt.Fscanf(settings, "%f %f %s %d %d\n",
+ &c.Pos.X, &c.Pos.Y, &t, &a, &b,
+ )
+ if err != nil {
+ return nil
+ }
+ if a <= 0 || b <= 0 {
+ log.Fatal("unconnected components in the circuit")
+ }
+ c.ANode = nodes[a-1]
+ nodes[a-1].AComponents = append(nodes[a-1].AComponents, &c)
+ c.BNode = nodes[b-1]
+ nodes[b-1].BComponents = append(nodes[b-1].BComponents, &c)
+ switch t {
+ case "resistor":
+ c.Model = &Resistor{100.0}
+ case "capacitor":
+ c.Model = &Capacitor{0.000001}
+ case "inductor":
+ c.Model = &Inductor{0.000001}
+ case "diode":
+ c.Model = &Diode{}
+ case "power":
+ c.Model = &Power{Current: 1.0, Frequency: 1000.0}
+ }
+ c.entries = make([]*widget.Entry, 0)
+ c.labels = make([]*widget.Label, 0)
+ for k, v := range c.Model.Parameters() {
+ e := widget.NewEntry()
+ e.TextStyle.Monospace = true
+ e.SetPlaceHolder(k)
+ e.SetText(fmt.Sprintf("%f", v))
+ e.OnSubmitted = func(s string) {
+ var v float64
+ _, err := fmt.Sscanf(s+"\n", "%f\n", &v)
+ if err != nil {
+ e.SetText(fmt.Sprintf("%f", c.Model.Parameters()[k]))
+ } else {
+ c.Model.UpdateParameter(k, v)
+ update()
+ }
+ }
+ c.entries = append(c.entries, e)
+ l := widget.NewLabel(k)
+ l.TextStyle.Monospace = true
+ c.labels = append(c.labels, l)
+ }
+ c.CurrentRange = r
+ c.CurrentOverTime = make([]float64, 1000)
+ for i := range c.CurrentOverTime {
+ c.CurrentOverTime[i] = 0
+ }
+ c.renderChart()
+ return &c
+}
+
+func (c *Component) renderChart() {
+ graph := chart.Chart{
+ Width: 140,
+ Height: 60,
+ ColorPalette: &componentColorPalette{},
+ XAxis: chart.HideXAxis(),
+ YAxis: chart.YAxis{
+ Style: chart.Hidden(),
+ Range: c.CurrentRange,
+ },
+ Series: []chart.Series{
+ chart.ContinuousSeries{
+ XValues: chart.LinearRange(0, 999),
+ YValues: c.CurrentOverTime,
+ },
+ },
+ }
+ writer := &chart.ImageWriter{}
+ graph.Render(chart.PNG, writer)
+ img, _ := writer.Image()
+ c.Image = canvas.NewImageFromImage(img)
+}
+
+type componentColorPalette struct{}
+
+func (*componentColorPalette) BackgroundColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*componentColorPalette) BackgroundStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*componentColorPalette) CanvasColor() drawing.Color {
+ return drawing.Color{R: 191, G: 254, B: 247, A: 128}
+}
+func (*componentColorPalette) CanvasStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*componentColorPalette) AxisStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*componentColorPalette) TextColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*componentColorPalette) GetSeriesColor(index int) drawing.Color {
+ return drawing.Color{R: 3, G: 247, B: 198, A: 255}
+}
+
+func (c *Component) CreateRenderer() fyne.WidgetRenderer { return c }
+func (c *Component) Layout(s fyne.Size) {
+ pos := fyne.NewPos(0, 0)
+ for i, e := range c.entries {
+ c.labels[i].Resize(fyne.NewSize(140, c.labels[i].MinSize().Height))
+ c.labels[i].Move(pos)
+ pos.Y += c.labels[i].MinSize().Height
+ e.Resize(fyne.NewSize(140, e.MinSize().Height))
+ e.Move(pos)
+ pos.Y += e.MinSize().Height
+ }
+ c.Image.Resize(fyne.NewSize(140, 60))
+ c.Image.Move(pos)
+}
+func (c *Component) MinSize() fyne.Size {
+ res := fyne.NewSize(140, 60)
+ for _, e := range c.entries {
+ res.Height += e.MinSize().Height
+ }
+ for _, l := range c.labels {
+ res.Height += l.MinSize().Height
+ }
+ return res
+}
+func (c *Component) Refresh() {
+ c.renderChart()
+ for _, e := range c.entries {
+ e.Refresh()
+ }
+ for _, l := range c.labels {
+ l.Refresh()
+ }
+}
+func (c *Component) Destroy() {}
+func (c *Component) Objects() []fyne.CanvasObject {
+ res := []fyne.CanvasObject{}
+ for i, e := range c.entries {
+ res = append(res, c.labels[i])
+ res = append(res, e)
+ }
+ res = append(res, c.Image)
+ return res
+}
diff --git a/cirsim/models.go b/cirsim/models.go
new file mode 100644
index 0000000..f4a73e9
--- /dev/null
+++ b/cirsim/models.go
@@ -0,0 +1,102 @@
+package cirsim
+
+import "math"
+
+type Modeler interface {
+ ModelConductance(time, delta, voltage, current float64) float64
+ ModelCurrent(time, delta, voltage, current float64) float64
+ Parameters() map[string]float64
+ UpdateParameter(name string, value float64)
+}
+
+type Capacitor struct {
+ Capacitance float64
+}
+
+func (m *Capacitor) ModelConductance(time, delta, voltage, current float64) float64 {
+ return 2.0 * m.Capacitance / delta
+}
+func (m *Capacitor) ModelCurrent(time, delta, voltage, current float64) float64 {
+ return -current - voltage*2*m.Capacitance/delta
+}
+func (m *Capacitor) Parameters() map[string]float64 {
+ return map[string]float64{"Capacitance": m.Capacitance}
+}
+func (m *Capacitor) UpdateParameter(name string, value float64) {
+ if name == "Capacitance" {
+ m.Capacitance = value
+ }
+}
+
+type Resistor struct {
+ Resistance float64
+}
+
+func (m *Resistor) ModelConductance(time, delta, voltage, current float64) float64 {
+ return 1.0 / m.Resistance
+}
+func (m *Resistor) ModelCurrent(time, delta, voltage, current float64) float64 {
+ return 0
+}
+func (m *Resistor) Parameters() map[string]float64 {
+ return map[string]float64{"Resistance": m.Resistance}
+}
+func (m *Resistor) UpdateParameter(name string, value float64) {
+ if name == "Resistance" {
+ m.Resistance = value
+ }
+}
+
+type Inductor struct {
+ Inductance float64
+}
+
+func (m *Inductor) ModelConductance(time, delta, voltage, current float64) float64 {
+ return delta / (2.0 * m.Inductance)
+}
+func (m *Inductor) ModelCurrent(time, delta, voltage, current float64) float64 {
+ return current + voltage*delta/(2*m.Inductance)
+}
+func (m *Inductor) Parameters() map[string]float64 {
+ return map[string]float64{"Inductance": m.Inductance}
+}
+func (m *Inductor) UpdateParameter(name string, value float64) {
+ if name == "Inductance" {
+ m.Inductance = value
+ }
+}
+
+type Diode struct{}
+
+func (m *Diode) ModelConductance(time, delta, voltage, current float64) float64 {
+ return 0
+}
+func (m *Diode) ModelCurrent(time, delta, voltage, current float64) float64 {
+ return 0
+}
+func (m *Diode) Parameters() map[string]float64 {
+ return map[string]float64{}
+}
+func (m *Diode) UpdateParameter(name string, value float64) {}
+
+type Power struct {
+ Current float64
+ Frequency float64
+}
+
+func (m *Power) ModelConductance(time, delta, voltage, current float64) float64 {
+ return 0
+}
+func (m *Power) ModelCurrent(time, delta, voltage, current float64) float64 {
+ return m.Current * math.Sin(time*m.Frequency*2*math.Pi)
+}
+func (m *Power) Parameters() map[string]float64 {
+ return map[string]float64{"Current": m.Current, "Frequency": m.Frequency}
+}
+func (m *Power) UpdateParameter(name string, value float64) {
+ if name == "Current" {
+ m.Current = value
+ } else if name == "Frequency" {
+ m.Frequency = value
+ }
+}
diff --git a/cirsim/node.go b/cirsim/node.go
new file mode 100644
index 0000000..a9e8301
--- /dev/null
+++ b/cirsim/node.go
@@ -0,0 +1,96 @@
+package cirsim
+
+import (
+ "fmt"
+ "io"
+
+ "fyne.io/fyne/v2"
+ "fyne.io/fyne/v2/canvas"
+ "fyne.io/fyne/v2/widget"
+ "github.com/wcharczuk/go-chart/v2"
+ "github.com/wcharczuk/go-chart/v2/drawing"
+)
+
+type Node struct {
+ widget.BaseWidget
+ Pos fyne.Position
+ VoltageOverTime []float64
+ VoltageRange chart.Range
+ AComponents []*Component
+ BComponents []*Component
+ Image *canvas.Image
+}
+
+func NewNode(settings io.Reader, r chart.Range) *Node {
+ var n Node
+ _, err := fmt.Fscanf(settings, "%f %f\n", &n.Pos.X, &n.Pos.Y)
+ if err != nil {
+ return nil
+ }
+ n.VoltageRange = r
+ n.VoltageOverTime = make([]float64, 1000)
+ for i := range n.VoltageOverTime {
+ n.VoltageOverTime[i] = 0
+ }
+ n.renderChart()
+ return &n
+}
+
+func (n *Node) renderChart() {
+ graph := chart.Chart{
+ Width: 140,
+ Height: 60,
+ ColorPalette: &nodeColorPalette{},
+ XAxis: chart.HideXAxis(),
+ YAxis: chart.YAxis{
+ Style: chart.Hidden(),
+ Range: n.VoltageRange,
+ },
+ Series: []chart.Series{
+ chart.ContinuousSeries{
+ XValues: chart.LinearRange(0, 999),
+ YValues: n.VoltageOverTime,
+ },
+ },
+ }
+ writer := &chart.ImageWriter{}
+ graph.Render(chart.PNG, writer)
+ img, _ := writer.Image()
+ n.Image = canvas.NewImageFromImage(img)
+}
+
+type nodeColorPalette struct{}
+
+func (*nodeColorPalette) BackgroundColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*nodeColorPalette) BackgroundStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*nodeColorPalette) CanvasColor() drawing.Color {
+ return drawing.Color{R: 249, G: 254, B: 172, A: 128}
+}
+func (*nodeColorPalette) CanvasStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*nodeColorPalette) AxisStrokeColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*nodeColorPalette) TextColor() drawing.Color {
+ return drawing.ColorTransparent
+}
+func (*nodeColorPalette) GetSeriesColor(index int) drawing.Color {
+ return drawing.Color{R: 247, G: 239, B: 3, A: 255}
+}
+
+func (n *Node) CreateRenderer() fyne.WidgetRenderer { return n }
+func (n *Node) Layout(s fyne.Size) {
+ n.Image.Resize(s)
+ n.Image.Move(fyne.NewPos(0, 0))
+}
+func (n *Node) MinSize() fyne.Size { return n.Image.MinSize() }
+func (n *Node) Refresh() { n.renderChart() }
+func (n *Node) Destroy() {}
+func (n *Node) Objects() []fyne.CanvasObject {
+ return []fyne.CanvasObject{n.Image}
+}
diff --git a/cirsim/simulation.go b/cirsim/simulation.go
new file mode 100644
index 0000000..ca0d841
--- /dev/null
+++ b/cirsim/simulation.go
@@ -0,0 +1,286 @@
+package cirsim
+
+import (
+ "fmt"
+ "image/color"
+ "log"
+ "os"
+
+ "fyne.io/fyne/v2"
+ "fyne.io/fyne/v2/canvas"
+ "fyne.io/fyne/v2/container"
+ "fyne.io/fyne/v2/layout"
+ "fyne.io/fyne/v2/widget"
+ "github.com/wcharczuk/go-chart/v2"
+ "gonum.org/v1/gonum/mat"
+)
+
+type Simulation struct {
+ Period float64
+ Size fyne.Size
+ Nodes []*Node
+ Components []*Component
+ VoltageRange chart.ContinuousRange
+ CurrentRange chart.ContinuousRange
+ periodEntry *widget.Entry
+ voltageLabel *canvas.Text
+ currentLabel *canvas.Text
+}
+
+func New() fyne.CanvasObject {
+ background := canvas.NewRectangle(color.White)
+ image := canvas.NewImageFromFile("circuit.svg")
+ file, err := os.Open("circuit")
+ if err != nil {
+ log.Fatal(err)
+ }
+ var sim Simulation
+ sim.Period = 0.01
+ sim.VoltageRange = chart.ContinuousRange{Min: 0, Max: 0}
+ sim.CurrentRange = chart.ContinuousRange{Min: 0, Max: 0}
+ fmt.Fscanf(file, "%f %f\n\n", &sim.Size.Width, &sim.Size.Height)
+ sim.voltageLabel = canvas.NewText(
+ fmt.Sprintf(" %e < voltage < %e ",
+ sim.VoltageRange.Min, sim.VoltageRange.Max),
+ color.RGBA{R: 247, G: 239, B: 3, A: 255},
+ )
+ sim.voltageLabel.TextStyle.Monospace = true
+ sim.currentLabel = canvas.NewText(
+ fmt.Sprintf(" %e < current < %e ",
+ sim.CurrentRange.Min, sim.CurrentRange.Max),
+ color.RGBA{R: 3, G: 247, B: 198, A: 255},
+ )
+ sim.currentLabel.TextStyle.Monospace = true
+ periodLabel := widget.NewLabel("Period")
+ periodLabel.TextStyle.Monospace = true
+ sim.periodEntry = widget.NewEntry()
+ sim.periodEntry.TextStyle.Monospace = true
+ sim.periodEntry.SetPlaceHolder("default: 0.01s")
+ sim.periodEntry.OnSubmitted = sim.updatePeriod
+ c := container.New(&sim,
+ container.NewHBox(
+ sim.voltageLabel,
+ sim.currentLabel,
+ layout.NewSpacer(),
+ periodLabel,
+ container.New(&entryLayout{}, sim.periodEntry),
+ ),
+ background,
+ image,
+ )
+ for n := NewNode(file, &sim.VoltageRange); n != nil; n = NewNode(file, &sim.VoltageRange) {
+ sim.Nodes = append(sim.Nodes, n)
+ c.Add(n)
+ }
+ for component := NewComponent(file, &sim.CurrentRange, sim.Nodes, sim.simulate); component != nil; component = NewComponent(file, &sim.CurrentRange, sim.Nodes, sim.simulate) {
+ sim.Components = append(sim.Components, component)
+ c.Add(component)
+ }
+ file.Close()
+ sim.simulate()
+ return c
+}
+
+func (sim *Simulation) simulate() {
+ for _, n := range sim.Nodes {
+ for i := range n.VoltageOverTime {
+ n.VoltageOverTime[i] = 0
+ }
+ }
+ for _, c := range sim.Components {
+ for i := range c.CurrentOverTime {
+ c.CurrentOverTime[i] = 0
+ }
+ }
+ maxv := 0.0
+ minv := 0.0
+ maxc := 0.0
+ minc := 0.0
+ for i := 0; i != 1000; i++ {
+ N := len(sim.Nodes)
+ for refine := 0; refine != 10; refine++ {
+ m := mat.NewDense(N+1, N, nil)
+ v := mat.NewVecDense(N+1, nil)
+ for j, n := range sim.Nodes {
+ for _, c := range sim.Components {
+ if c.ANode == n {
+ v.SetVec(j, v.AtVec(j)-c.Model.ModelCurrent(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ c.BNode.VoltageOverTime[i]-n.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ d := 0
+ for k, v := range sim.Nodes {
+ if c.BNode == v {
+ d = k
+ break
+ }
+ }
+ m.Set(j, d, m.At(j, d)-
+ c.Model.ModelConductance(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ c.BNode.VoltageOverTime[i]-n.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ m.Set(j, j, m.At(j, j)+
+ c.Model.ModelConductance(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ c.BNode.VoltageOverTime[i]-n.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ } else if c.BNode == n {
+ v.SetVec(j, v.AtVec(j)+c.Model.ModelCurrent(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ n.VoltageOverTime[i]-c.ANode.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ d := 0
+ for k, v := range sim.Nodes {
+ if c.ANode == v {
+ d = k
+ break
+ }
+ }
+ m.Set(j, d, m.At(j, d)-
+ c.Model.ModelConductance(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ n.VoltageOverTime[i]-c.ANode.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ m.Set(j, j, m.At(j, j)+
+ c.Model.ModelConductance(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ n.VoltageOverTime[i]-c.ANode.VoltageOverTime[i],
+ c.CurrentOverTime[i]))
+ }
+ }
+ }
+ r := make([]float64, N)
+ for j := 0; j != N-1; j++ {
+ r[j] = 0
+ }
+ r[N-1] = 1
+ m.SetRow(N, r)
+ v.SetVec(N, 0)
+ res := mat.NewVecDense(N, nil)
+ res.SolveVec(m, v)
+ for j, n := range sim.Nodes {
+ n.VoltageOverTime[i] = res.AtVec(j)
+ }
+ for _, c := range sim.Components {
+ c.CurrentOverTime[i] = (c.ANode.VoltageOverTime[i]-c.BNode.VoltageOverTime[i])*
+ c.Model.ModelConductance(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ c.BNode.VoltageOverTime[i]-c.ANode.VoltageOverTime[i],
+ c.CurrentOverTime[i]) +
+ c.Model.ModelCurrent(
+ float64(i)*sim.Period/1000, sim.Period/1000,
+ c.BNode.VoltageOverTime[i]-c.ANode.VoltageOverTime[i],
+ c.CurrentOverTime[i])
+ }
+ }
+ if i == 999 {
+ break
+ }
+ for _, n := range sim.Nodes {
+ n.VoltageOverTime[i+1] = n.VoltageOverTime[i]
+ if n.VoltageOverTime[i] > maxv {
+ maxv = n.VoltageOverTime[i]
+ } else if n.VoltageOverTime[i] < minv {
+ minv = n.VoltageOverTime[i]
+ }
+ }
+ for _, c := range sim.Components {
+ c.CurrentOverTime[i+1] = c.CurrentOverTime[i]
+ if c.CurrentOverTime[i] > maxc {
+ maxc = c.CurrentOverTime[i]
+ } else if c.CurrentOverTime[i] < minc {
+ minc = c.CurrentOverTime[i]
+ }
+ }
+ }
+ sim.VoltageRange.Max = maxv
+ sim.VoltageRange.Min = minv
+ sim.CurrentRange.Max = maxc
+ sim.CurrentRange.Min = minc
+ sim.voltageLabel.Text = fmt.Sprintf(" %e < voltage < %e ",
+ sim.VoltageRange.Min, sim.VoltageRange.Max)
+ sim.currentLabel.Text = fmt.Sprintf(" %e < current < %e ",
+ sim.CurrentRange.Min, sim.CurrentRange.Max)
+ sim.voltageLabel.Refresh()
+ sim.currentLabel.Refresh()
+ for _, n := range sim.Nodes {
+ n.Refresh()
+ }
+ for _, c := range sim.Components {
+ c.Refresh()
+ }
+}
+
+func (sim *Simulation) updatePeriod(period string) {
+ _, err := fmt.Sscanf(period+"\n", "%f\n", &sim.Period)
+ if err != nil {
+ sim.periodEntry.SetText(fmt.Sprintf("%f", sim.Period))
+ } else {
+ sim.simulate()
+ }
+}
+
+func (l *Simulation) MinSize(objects []fyne.CanvasObject) fyne.Size {
+ s := fyne.NewSize(0, 0)
+ for _, i := range objects {
+ switch o := i.(type) {
+ case *canvas.Image:
+ s = o.MinSize()
+ default:
+ }
+ }
+ return s
+}
+
+func (l *Simulation) Layout(obs []fyne.CanvasObject, size fyne.Size) {
+ var p fyne.Position
+ var s fyne.Size
+ panel_height := obs[0].MinSize().Height
+ H := size.Height - panel_height
+ W := size.Width
+ h := l.Size.Height
+ w := l.Size.Width
+ var scale float32
+ if H/W > h/w {
+ p = fyne.NewPos(0, (H-W*h/w)/2+panel_height)
+ s = fyne.NewSize(W, W*h/w)
+ scale = W / w
+ } else {
+ p = fyne.NewPos((W-H*w/h)/2, panel_height)
+ s = fyne.NewSize(H*w/h, H)
+ scale = H / h
+ }
+ obs[0].Resize(fyne.NewSize(W, panel_height))
+ obs[0].Move(fyne.NewPos(0, 0))
+ obs[1].Resize(size)
+ obs[1].Move(fyne.NewPos(0, panel_height))
+ obs[2].Resize(s)
+ obs[2].Move(p)
+ for i, n := range l.Nodes {
+ obs[3+i].Resize(fyne.NewSize(140, 60))
+ shift := fyne.NewPos(p.X+n.Pos.X*scale-70, p.Y+n.Pos.Y*scale-30)
+ obs[3+i].Move(shift)
+ }
+ for i, c := range l.Components {
+ ms := obs[3+len(l.Nodes)+i].MinSize()
+ obs[3+len(l.Nodes)+i].Resize(ms)
+ shift := fyne.NewPos(p.X+c.Pos.X*scale-70, p.Y+c.Pos.Y*scale-ms.Height+30)
+ obs[3+len(l.Nodes)+i].Move(shift)
+ }
+}
+
+type entryLayout struct{}
+
+func (*entryLayout) MinSize(objects []fyne.CanvasObject) fyne.Size {
+ return fyne.NewSize(
+ objects[0].MinSize().Width*4,
+ objects[0].MinSize().Height,
+ )
+}
+func (*entryLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
+ for _, o := range objects {
+ o.Resize(size)
+ o.Move(fyne.NewPos(0, 0))
+ }
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2249339
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,30 @@
+module git.veresov.xyz/aversey/cirsim
+
+go 1.18
+
+require (
+ fyne.io/fyne/v2 v2.1.4
+ github.com/wcharczuk/go-chart/v2 v2.1.0
+ gonum.org/v1/gonum v0.11.0
+)
+
+require (
+ github.com/davecgh/go-spew v1.1.1 // indirect
+ github.com/fredbi/uri v0.0.0-20181227131451-3dcfdacbaaf3 // indirect
+ github.com/fsnotify/fsnotify v1.5.1 // indirect
+ github.com/go-gl/gl v0.0.0-20211210172815-726fda9656d6 // indirect
+ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20220320163800-277f93cfa958 // indirect
+ github.com/godbus/dbus/v5 v5.1.0 // indirect
+ github.com/goki/freetype v0.0.0-20220119013949-7a161fd3728c // indirect
+ github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+ github.com/pmezard/go-difflib v1.0.0 // indirect
+ github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44 // indirect
+ github.com/srwiley/rasterx v0.0.0-20220128185129-2efea2b9ea41 // indirect
+ github.com/stretchr/testify v1.7.1 // indirect
+ github.com/yuin/goldmark v1.4.11 // indirect
+ golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9 // indirect
+ golang.org/x/net v0.0.0-20220412020605-290c469a71a5 // indirect
+ golang.org/x/sys v0.0.0-20220412211240-33da011f77ad // indirect
+ golang.org/x/text v0.3.7 // indirect
+ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..de78981
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,113 @@
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diff --git a/main.go b/main.go
new file mode 100644
index 0000000..23474fa
--- /dev/null
+++ b/main.go
@@ -0,0 +1,18 @@
+package main
+
+import (
+ "fyne.io/fyne/v2"
+ "fyne.io/fyne/v2/app"
+ "fyne.io/fyne/v2/theme"
+ "git.veresov.xyz/aversey/cirsim/cirsim"
+)
+
+func main() {
+ a := app.New()
+ a.Settings().SetTheme(theme.LightTheme())
+ w := a.NewWindow("Circuit Simulator")
+ w.Resize(fyne.NewSize(1280, 720))
+ w.SetIcon(theme.SettingsIcon())
+ w.SetContent(cirsim.New())
+ w.ShowAndRun()
+}