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implot/implot_demo.cpp
epezent 902cf44234 rev up to 0.8
2020-09-06 21:20:38 -05:00

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// MIT License
// Copyright (c) 2020 Evan Pezent
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.8 WIP
#include "implot.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#ifdef _MSC_VER
#define sprintf sprintf_s
#endif
namespace MyImPlot {
// Examples for passing custom function pointers to ImPlot in Custom Getters section.
struct WaveData {
double X, Amp, Freq, Offset;
WaveData(double x, double amp, double freq, double offset) { X = x; Amp = amp; Freq = freq; Offset = offset; }
};
ImPlotPoint SineWave(void* wave_data, int idx);
ImPlotPoint SawWave(void* wave_data, int idx);
ImPlotPoint Spiral(void*, int idx);
// Example for Tables section. Generates a quick and simple shaded line plot. See implementation at bottom.
void Sparkline(const char* id, const float* values, int count, float min_v, float max_v, int offset, const ImVec4& col, const ImVec2& size);
// Example for Custom Plotters and Tooltips section. Plots a candlestick chart for financial data. See implementation at bottom.
void PlotCandlestick(const char* label_id, const double* xs, const double* opens, const double* closes, const double* lows, const double* highs, int count, bool tooltip = true, float width_percent = 0.25f, ImVec4 bullCol = ImVec4(0,1,0,1), ImVec4 bearCol = ImVec4(1,0,0,1));
// Sets style to mimic Seaborn
void StyleSeaborn();
} // namespace MyImPlot
namespace ImPlot {
/// Choose whether the demo uses double or float versions of the ImPlot API.
/// NB: You don't ever need to typdef of define values for ImPlot. This
/// is only being done here for the sake of demoing both precision types.
// #define IMPLOT_DEMO_USE_DOUBLE
#ifdef IMPLOT_DEMO_USE_DOUBLE
typedef double t_float;
typedef ImPlotPoint t_float2;
#define Sin sin
#define Cos cos
#define Pow pow
#define Log log
#define Fmod fmod
#else
typedef float t_float;
typedef ImVec2 t_float2;
#define Sin sinf
#define Cos cosf
#define Pow powf
#define Log logf
#define Fmod fmodf
#endif
void ShowBenchmarkTool();
inline t_float RandomRange(t_float min, t_float max) {
t_float scale = rand() / (t_float) RAND_MAX;
return min + scale * ( max - min );
}
// utility structure for realtime plot
struct ScrollingBuffer {
int MaxSize;
int Offset;
ImVector<t_float2> Data;
ScrollingBuffer() {
MaxSize = 2000;
Offset = 0;
Data.reserve(MaxSize);
}
void AddPoint(t_float x, t_float y) {
if (Data.size() < MaxSize)
Data.push_back(t_float2(x,y));
else {
Data[Offset] = t_float2(x,y);
Offset = (Offset + 1) % MaxSize;
}
}
void Erase() {
if (Data.size() > 0) {
Data.shrink(0);
Offset = 0;
}
}
};
// utility structure for realtime plot
struct RollingBuffer {
t_float Span;
ImVector<t_float2> Data;
RollingBuffer() {
Span = 10.0f;
Data.reserve(2000);
}
void AddPoint(t_float x, t_float y) {
t_float xmod = Fmod(x, Span);
if (!Data.empty() && xmod < Data.back().x)
Data.shrink(0);
Data.push_back(t_float2(xmod, y));
}
};
// Huge data used by Time Formatting example (~500 MB allocation!)
struct HugeTimeData {
HugeTimeData(double min) {
Ts = new double[Size];
Ys = new double[Size];
for (int i = 0; i < Size; ++i) {
Ts[i] = min + i;
Ys[i] = GetY(Ts[i]);
}
}
~HugeTimeData() { delete[] Ts; delete[] Ys; }
static double GetY(double t) {
return 0.5 + 0.25 * sin(t/86400/12) + 0.005 * sin(t/3600);
}
double* Ts;
double* Ys;
static const int Size = 60*60*24*366;
};
void ShowDemoWindow(bool* p_open) {
t_float DEMO_TIME = (t_float)ImGui::GetTime();
static bool show_imgui_metrics = false;
static bool show_imgui_style_editor = false;
static bool show_implot_style_editor = false;
static bool show_implot_benchmark = false;
if (show_imgui_metrics) {
ImGui::ShowMetricsWindow(&show_imgui_metrics);
}
if (show_imgui_style_editor) {
ImGui::Begin("Style Editor (ImGui)", &show_imgui_style_editor);
ImGui::ShowStyleEditor();
ImGui::End();
}
if (show_implot_style_editor) {
ImGui::SetNextWindowSize(ImVec2(415,762), ImGuiCond_Appearing);
ImGui::Begin("Style Editor (ImPlot)", &show_implot_style_editor);
ImPlot::ShowStyleEditor();
ImGui::End();
}
if (show_implot_benchmark) {
ImGui::SetNextWindowSize(ImVec2(530,740), ImGuiCond_Appearing);
ImGui::Begin("ImPlot Benchmark Tool", &show_implot_benchmark);
ImPlot::ShowBenchmarkTool();
ImGui::End();
return;
}
ImGui::SetNextWindowPos(ImVec2(50, 50), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(600, 750), ImGuiCond_FirstUseEver);
ImGui::Begin("ImPlot Demo", p_open, ImGuiWindowFlags_MenuBar);
if (ImGui::BeginMenuBar()) {
if (ImGui::BeginMenu("Tools")) {
ImGui::MenuItem("Metrics (ImGui)", NULL, &show_imgui_metrics);
ImGui::MenuItem("Style Editor (ImGui)", NULL, &show_imgui_style_editor);
ImGui::MenuItem("Style Editor (ImPlot)", NULL, &show_implot_style_editor);
ImGui::MenuItem("Benchmark", NULL, &show_implot_benchmark);
ImGui::EndMenu();
}
ImGui::EndMenuBar();
}
//-------------------------------------------------------------------------
ImGui::Text("ImPlot says hello. (%s)", IMPLOT_VERSION);
ImGui::Spacing();
if (ImGui::CollapsingHeader("Help")) {
ImGui::Text("ABOUT THIS DEMO:");
ImGui::BulletText("Sections below are demonstrating many aspects of the library.");
ImGui::BulletText("The \"Tools\" menu above gives access to: Style Editors (ImPlot/ImGui)\n"
"and Metrics (general purpose Dear ImGui debugging tool).");
ImGui::Separator();
ImGui::Text("PROGRAMMER GUIDE:");
ImGui::BulletText("See the ShowDemoWindow() code in implot_demo.cpp. <- you are here!");
ImGui::BulletText("By default, anti-aliased lines are turned OFF.");
ImGui::Indent();
ImGui::BulletText("Software AA can be enabled globally with ImPlotStyle.AntiAliasedLines.");
ImGui::BulletText("Software AA can be enabled per plot with ImPlotFlags_AntiAliased.");
ImGui::BulletText("AA for plots can be toggled from the plot's context menu.");
ImGui::BulletText("If permitable, you are better off using hardware AA (e.g. MSAA).");
ImGui::Unindent();
ImGui::BulletText("If you see visual artifacts, do one of the following:");
ImGui::Indent();
ImGui::BulletText("Handle ImGuiBackendFlags_RendererHasVtxOffset for 16-bit indices in your backend.");
ImGui::BulletText("Or, enable 32-bit indices in imconfig.h.");
ImGui::BulletText("Your current configuration is:");
ImGui::Indent();
ImGui::BulletText("ImDrawIdx: %d-bit", (int)(sizeof(ImDrawIdx) * 8));
ImGui::BulletText("ImGuiBackendFlags_RendererHasVtxOffset: %s", (ImGui::GetIO().BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) ? "True" : "False");
ImGui::Unindent();
ImGui::Unindent();
#ifdef IMPLOT_DEMO_USE_DOUBLE
ImGui::BulletText("The demo data precision is: double");
#else
ImGui::BulletText("The demo data precision is: float");
#endif
ImGui::Separator();
ImGui::Text("USER GUIDE:");
ShowUserGuide();
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Configuration")) {
ImGui::ShowFontSelector("Font");
ImGui::ShowStyleSelector("ImGui Style");
ImPlot::ShowStyleSelector("ImPlot Style");
static const char* map = ImPlot::GetColormapName(ImPlotColormap_Default);
if (ImGui::BeginCombo("ImPlot Colormap", map)) {
for (int i = 0; i < ImPlotColormap_COUNT; ++i) {
const char* name = GetColormapName(i);
if (ImGui::Selectable(name, map == name)) {
map = name;
ImPlot::SetColormap(i);
}
}
ImGui::EndCombo();
}
float indent = ImGui::CalcItemWidth() - ImGui::GetFrameHeight();
ImGui::Indent(ImGui::CalcItemWidth() - ImGui::GetFrameHeight());
ImGui::Checkbox("Anti-Aliased Lines", &ImPlot::GetStyle().AntiAliasedLines);
ImGui::Unindent(indent);
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Line Plots")) {
static t_float xs1[1001], ys1[1001];
for (int i = 0; i < 1001; ++i) {
xs1[i] = i * 0.001f;
ys1[i] = 0.5f + 0.5f * Sin(50 * (xs1[i] + DEMO_TIME / 10));
}
static t_float xs2[11], ys2[11];
for (int i = 0; i < 11; ++i) {
xs2[i] = i * 0.1f;
ys2[i] = xs2[i] * xs2[i];
}
ImGui::BulletText("Anti-aliasing can be enabled from the plot's context menu (see Help).");
if (ImPlot::BeginPlot("Line Plot", "x", "f(x)")) {
ImPlot::PlotLine("sin(x)", xs1, ys1, 1001);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotLine("x^2", xs2, ys2, 11);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Filled Line Plots")) {
static t_float xs1[101], ys1[101], ys2[101], ys3[101];
srand(0);
for (int i = 0; i < 101; ++i) {
xs1[i] = (float)i;
ys1[i] = RandomRange(400,450);
ys2[i] = RandomRange(275,350);
ys3[i] = RandomRange(150,225);
}
static bool show_lines = true;
static bool show_fills = true;
static float fill_ref = 0;
ImGui::Checkbox("Lines",&show_lines); ImGui::SameLine();
ImGui::Checkbox("Fills",&show_fills);
ImGui::DragFloat("Reference",&fill_ref, 1, -100, 500);
ImPlot::SetNextPlotLimits(0,100,0,500);
if (ImPlot::BeginPlot("Stock Prices", "Days", "Price")) {
if (show_fills) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded("Stock 1", xs1, ys1, 101, fill_ref);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, fill_ref);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, fill_ref);
ImPlot::PopStyleVar();
}
if (show_lines) {
ImPlot::PlotLine("Stock 1", xs1, ys1, 101);
ImPlot::PlotLine("Stock 2", xs1, ys2, 101);
ImPlot::PlotLine("Stock 3", xs1, ys3, 101);
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Shaded Plots")) {
static t_float xs[1001], ys[1001], ys1[1001], ys2[1001], ys3[1001], ys4[1001];
srand(0);
for (int i = 0; i < 1001; ++i) {
xs[i] = i * 0.001f;
ys[i] = 0.25f + 0.25f * Sin(25 * xs[i]) * Sin(5 * xs[i]) + RandomRange(-0.01f, 0.01f);
ys1[i] = ys[i] + RandomRange(0.1f, 0.12f);
ys2[i] = ys[i] - RandomRange(0.1f, 0.12f);
ys3[i] = 0.75f + 0.2f * Sin(25 * xs[i]);
ys4[i] = 0.75f + 0.1f * Cos(25 * xs[i]);
}
static float alpha = 0.25f;
ImGui::DragFloat("Alpha",&alpha,0.01f,0,1);
if (ImPlot::BeginPlot("Shaded Plots", "X-Axis", "Y-Axis")) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, alpha);
ImPlot::PlotShaded("Uncertain Data",xs,ys1,ys2,1001);
ImPlot::PlotLine("Uncertain Data", xs, ys, 1001);
ImPlot::PlotShaded("Overlapping",xs,ys3,ys4,1001);
ImPlot::PlotLine("Overlapping",xs,ys3,1001);
ImPlot::PlotLine("Overlapping",xs,ys4,1001);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Scatter Plots")) {
srand(0);
static t_float xs1[100], ys1[100];
for (int i = 0; i < 100; ++i) {
xs1[i] = i * 0.01f;
ys1[i] = xs1[i] + 0.1f * ((t_float)rand() / (t_float)RAND_MAX);
}
static t_float xs2[50], ys2[50];
for (int i = 0; i < 50; i++) {
xs2[i] = 0.25f + 0.2f * ((t_float)rand() / (t_float)RAND_MAX);
ys2[i] = 0.75f + 0.2f * ((t_float)rand() / (t_float)RAND_MAX);
}
if (ImPlot::BeginPlot("Scatter Plot", NULL, NULL)) {
ImPlot::PlotScatter("Data 1", xs1, ys1, 100);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square, 6, ImVec4(0,1,0,0.5f), IMPLOT_AUTO, ImVec4(0,1,0,1));
ImPlot::PlotScatter("Data 2", xs2, ys2, 50);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Bar Plots")) {
static const char* labels[] = {"S1","S2","S3","S4","S5","S6","S7","S8","S9","S10"};
static const double positions[] = {0,1,2,3,4,5,6,7,8,9};
static bool horz = false;
static t_float midtm[10] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90};
static t_float final[10] = {80, 62, 56, 99, 55, 78, 88, 78, 90, 100};
static t_float grade[10] = {80, 69, 52, 92, 72, 78, 75, 76, 89, 95};
ImGui::Checkbox("Horizontal",&horz);
if (horz) {
ImPlot::SetNextPlotLimits(0, 110, -0.5, 9.5, ImGuiCond_Always);
ImPlot::SetNextPlotTicksY(positions, 10, labels);
}
else {
ImPlot::SetNextPlotLimits(-0.5, 9.5, 0, 110, ImGuiCond_Always);
ImPlot::SetNextPlotTicksX(positions, 10, labels);
}
if (ImPlot::BeginPlot("Bar Plot", horz ? "Score" : "Student", horz ? "Student" : "Score",
ImVec2(-1,0), 0, 0, horz ? ImPlotAxisFlags_Invert : 0))
{
if (horz) {
ImPlot::PlotBarsH("Midterm Exam", midtm, 10, 0.2f, -0.2f);
ImPlot::PlotBarsH("Final Exam", final, 10, 0.2f, 0);
ImPlot::PlotBarsH("Course Grade", grade, 10, 0.2f, 0.2f);
}
else {
ImPlot::PlotBars("Midterm Exam", midtm, 10, 0.2f, -0.2f);
ImPlot::PlotBars("Final Exam", final, 10, 0.2f, 0);
ImPlot::PlotBars("Course Grade", grade, 10, 0.2f, 0.2f);
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Error Bars")) {
static t_float xs[5] = {1,2,3,4,5};
static t_float bar[5] = {1,2,5,3,4};
static t_float lin1[5] = {8,8,9,7,8};
static t_float lin2[5] = {6,7,6,9,6};
static t_float err1[5] = {0.2f, 0.4f, 0.2f, 0.6f, 0.4f};
static t_float err2[5] = {0.4f, 0.2f, 0.4f, 0.8f, 0.6f};
static t_float err3[5] = {0.09f, 0.14f, 0.09f, 0.12f, 0.16f};
static t_float err4[5] = {0.02f, 0.08f, 0.15f, 0.05f, 0.2f};
ImPlot::SetNextPlotLimits(0, 6, 0, 10);
if (ImPlot::BeginPlot("##ErrorBars",NULL,NULL)) {
ImPlot::PlotBars("Bar", xs, bar, 5, 0.5f);
ImPlot::PlotErrorBars("Bar", xs, bar, err1, 5);
ImPlot::SetNextErrorBarStyle(ImPlot::GetColormapColor(1), 0);
ImPlot::PlotErrorBars("Line", xs, lin1, err1, err2, 5);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotLine("Line", xs, lin1, 5);
ImPlot::PushStyleColor(ImPlotCol_ErrorBar, ImPlot::GetColormapColor(2));
ImPlot::PlotErrorBars("Scatter", xs, lin2, err2, 5);
ImPlot::PlotErrorBarsH("Scatter", xs, lin2, err3, err4, 5);
ImPlot::PopStyleColor();
ImPlot::PlotScatter("Scatter", xs, lin2, 5);
ImPlot::EndPlot();
}
}
if (ImGui::CollapsingHeader("Stem Plots")) {
static t_float xs[51], ys1[51], ys2[51];
for (int i = 0; i < 51; ++i) {
xs[i] = i * 0.02f;
ys1[i] = 1.0f + 0.5f * Sin(25*xs[i])*Cos(2*xs[i]);
ys2[i] = 0.5f + 0.25f * Sin(10*xs[i]) * Sin(xs[i]);
}
ImPlot::SetNextPlotLimits(0,1,0,1.6);
if (ImPlot::BeginPlot("Stem Plots")) {
ImPlot::PlotStems("Stems 1",xs,ys1,51);
ImPlot::SetNextLineStyle(ImVec4(1,0.5f,0,0.75f));
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square,5,ImVec4(1,0.5f,0,0.25f));
ImPlot::PlotStems("Stems 2", xs, ys2,51);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Pie Charts")) {
static const char* labels1[] = {"Frogs","Hogs","Dogs","Logs"};
static float data1[] = {0.15f, 0.30f, 0.2f, 0.05f};
static bool normalize = false;
ImGui::SetNextItemWidth(250);
ImGui::DragFloat4("Values", data1, 0.01f, 0, 1);
if ((data1[0] + data1[1] + data1[2] + data1[3]) < 1) {
ImGui::SameLine();
ImGui::Checkbox("Normalize", &normalize);
}
ImPlot::SetNextPlotLimits(0,1,0,1,ImGuiCond_Always);
if (ImPlot::BeginPlot("##Pie1", NULL, NULL, ImVec2(250,250), ImPlotFlags_NoMousePos, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotPieChart(labels1, data1, 4, 0.5f, 0.5f, 0.4f, normalize, "%.2f");
ImPlot::EndPlot();
}
ImGui::SameLine();
static const char* labels2[] = {"A","B","C","D","E"};
static t_float data2[] = {1,1,2,3,5};
ImPlot::PushColormap(ImPlotColormap_Pastel);
ImPlot::SetNextPlotLimits(0,1,0,1,ImGuiCond_Always);
if (ImPlot::BeginPlot("##Pie2", NULL, NULL, ImVec2(250,250), ImPlotFlags_NoMousePos, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotPieChart(labels2, data2, 5, 0.5f, 0.5f, 0.4f, true, "%.0f", 180);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Heatmaps")) {
static t_float values1[7][7] = {{0.8f, 2.4f, 2.5f, 3.9f, 0.0f, 4.0f, 0.0f},
{2.4f, 0.0f, 4.0f, 1.0f, 2.7f, 0.0f, 0.0f},
{1.1f, 2.4f, 0.8f, 4.3f, 1.9f, 4.4f, 0.0f},
{0.6f, 0.0f, 0.3f, 0.0f, 3.1f, 0.0f, 0.0f},
{0.7f, 1.7f, 0.6f, 2.6f, 2.2f, 6.2f, 0.0f},
{1.3f, 1.2f, 0.0f, 0.0f, 0.0f, 3.2f, 5.1f},
{0.1f, 2.0f, 0.0f, 1.4f, 0.0f, 1.9f, 6.3f}};
static float scale_min = 0;
static float scale_max = 6.3f;
static t_float values2[100*100];
srand((unsigned int)(DEMO_TIME*1000000));
for (int i = 0; i < 100*100; ++i)
values2[i] = RandomRange(0,1);
static const char* xlabels[] = {"C1","C2","C3","C4","C5","C6","C7"};
static const char* ylabels[] = {"R1","R2","R3","R4","R5","R6","R7"};
static ImPlotColormap map = ImPlotColormap_Viridis;
if (ImGui::Button("Change Colormap",ImVec2(225,0)))
map = (map + 1) % ImPlotColormap_COUNT;
ImGui::SameLine();
ImGui::LabelText("##Colormap Index", "%s", ImPlot::GetColormapName(map));
ImGui::SetNextItemWidth(225);
ImGui::DragFloatRange2("Min / Max",&scale_min, &scale_max, 0.01f, -20, 20);
static ImPlotAxisFlags axes_flags = ImPlotAxisFlags_Lock | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoTickMarks;
ImPlot::PushColormap(map);
SetNextPlotTicksX(0 + 1.0/14.0, 1 - 1.0/14.0, 7, xlabels);
SetNextPlotTicksY(1 - 1.0/14.0, 0 + 1.0/14.0, 7, ylabels);
if (ImPlot::BeginPlot("##Heatmap1",NULL,NULL,ImVec2(225,225),ImPlotFlags_NoLegend|ImPlotFlags_NoMousePos,axes_flags,axes_flags)) {
ImPlot::PlotHeatmap("heat",values1[0],7,7,scale_min,scale_max);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ShowColormapScale(scale_min, scale_max, 225);
ImPlot::PopColormap();
ImGui::SameLine();
static ImVec4 gray[2] = {ImVec4(0,0,0,1), ImVec4(1,1,1,1)};
ImPlot::PushColormap(gray, 2);
ImPlot::SetNextPlotLimits(-1,1,-1,1);
if (ImPlot::BeginPlot("##Heatmap2",NULL,NULL,ImVec2(225,225),0,ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotHeatmap("heat1",values2,100,100,0,1,NULL);
ImPlot::PlotHeatmap("heat2",values2,100,100,0,1,NULL, ImPlotPoint(-1,-1), ImPlotPoint(0,0));
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Realtime Plots")) {
ImGui::BulletText("Move your mouse to change the data!");
ImGui::BulletText("This example assumes 60 FPS. Higher FPS requires larger buffer size.");
static ScrollingBuffer sdata1, sdata2;
static RollingBuffer rdata1, rdata2;
ImVec2 mouse = ImGui::GetMousePos();
static t_float t = 0;
t += ImGui::GetIO().DeltaTime;
sdata1.AddPoint(t, mouse.x * 0.0005f);
rdata1.AddPoint(t, mouse.x * 0.0005f);
sdata2.AddPoint(t, mouse.y * 0.0005f);
rdata2.AddPoint(t, mouse.y * 0.0005f);
static float history = 10.0f;
ImGui::SliderFloat("History",&history,1,30,"%.1f s");
rdata1.Span = history;
rdata2.Span = history;
static ImPlotAxisFlags rt_axis = ImPlotAxisFlags_NoTickLabels;
ImPlot::SetNextPlotLimitsX(t - history, t, ImGuiCond_Always);
if (ImPlot::BeginPlot("##Scrolling", NULL, NULL, ImVec2(-1,150), 0, rt_axis, rt_axis | ImPlotAxisFlags_LockMin)) {
ImPlot::PlotShaded("Data 1", &sdata1.Data[0].x, &sdata1.Data[0].y, sdata1.Data.size(), 0, sdata1.Offset, 2 * sizeof(t_float));
ImPlot::PlotLine("Data 2", &sdata2.Data[0], sdata2.Data.size(), sdata2.Offset);
ImPlot::EndPlot();
}
ImPlot::SetNextPlotLimitsX(0, history, ImGuiCond_Always);
if (ImPlot::BeginPlot("##Rolling", NULL, NULL, ImVec2(-1,150), 0, rt_axis, rt_axis)) {
// two methods of plotting Data
// as ImVec2* (or ImPlot*):
ImPlot::PlotLine("Data 1", &rdata1.Data[0], rdata1.Data.size());
// as float*, float* (or double*, double*) with stride of 2 * sizeof
ImPlot::PlotLine("Data 2", &rdata2.Data[0].x, &rdata2.Data[0].y, rdata2.Data.size(), 0, 2 * sizeof(t_float));
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Markers and Text")) {
static float mk_size = ImPlot::GetStyle().MarkerSize;
static float mk_weight = ImPlot::GetStyle().MarkerWeight;
ImGui::DragFloat("Marker Size",&mk_size,0.1f,2.0f,10.0f,"%.2f px");
ImGui::DragFloat("Marker Weight", &mk_weight,0.05f,0.5f,3.0f,"%.2f px");
ImPlot::SetNextPlotLimits(0, 10, 0, 12);
if (ImPlot::BeginPlot("##MarkerStyles", NULL, NULL, ImVec2(-1,0), ImPlotFlags_CanvasOnly, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
t_float xs[2] = {1,4};
t_float ys[2] = {10,11};
// filled markers
for (int m = 1; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, IMPLOT_AUTO_COL, mk_weight);
ImPlot::PlotLine("##Filled", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
xs[0] = 6; xs[1] = 9; ys[0] = 10; ys[1] = 11;
// open markers
for (int m = 1; m < ImPlotMarker_COUNT; ++m) {
ImGui::PushID(m);
ImPlot::SetNextMarkerStyle(m, mk_size, ImVec4(0,0,0,0), mk_weight);
ImPlot::PlotLine("##Open", xs, ys, 2);
ImGui::PopID();
ys[0]--; ys[1]--;
}
ImPlot::PlotText("Filled Markers", 2.5f, 6.0f);
ImPlot::PlotText("Open Markers", 7.5f, 6.0f);
ImPlot::PushStyleColor(ImPlotCol_InlayText, ImVec4(1,0,1,1));
ImPlot::PlotText("Vertical Text", 5.0f, 6.0f, true);
ImPlot::PopStyleColor();
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Log Scale")) {
static t_float xs[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = i*0.1f;
ys1[i] = Sin(xs[i]) + 1;
ys2[i] = Log(xs[i]);
ys3[i] = Pow(10.0f, xs[i]);
}
ImGui::BulletText("Open the plot context menu (double right click) to change scales.");
ImPlot::SetNextPlotLimits(0.1, 100, 0, 10);
if (ImPlot::BeginPlot("Log Plot", NULL, NULL, ImVec2(-1,0), 0, ImPlotAxisFlags_LogScale )) {
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
ImPlot::PlotLine("f(x) = sin(x)+1", xs, ys1, 1001);
ImPlot::PlotLine("f(x) = log(x)", xs, ys2, 1001);
ImPlot::PlotLine("f(x) = 10^x", xs, ys3, 21);
ImPlot::EndPlot();
}
}
if (ImGui::CollapsingHeader("Time Formatted Axes")) {
static double t_min = 1577836800; // 01/01/2020 @ 12:00:00am (UTC)
static double t_max = 1609459200; // 01/01/2021 @ 12:00:00am (UTC)
ImGui::BulletText("When ImPlotAxisFlags_Time is enabled on the X-Axis, values are interpreted as\n"
"UNIX timestamps in seconds and axis labels are formated as date/time.");
ImGui::BulletText("By default, labels are in UTC time but can be set to use local time instead.");
ImGui::Checkbox("Use Local Time",&ImPlot::GetStyle().UseLocalTime);
static HugeTimeData* data = NULL;
if (data == NULL) {
ImGui::SameLine();
if (ImGui::Button("Generate Huge Data (~500MB!)")) {
static HugeTimeData sdata(t_min);
data = &sdata;
}
}
ImPlot::SetNextPlotLimits(t_min,t_max,0,1);
if (ImPlot::BeginPlot("##Time", "Time", "Value", ImVec2(-1,0), 0, ImPlotAxisFlags_Time)) {
if (data != NULL) {
// downsample our data
int downsample = (int)ImPlot::GetPlotLimits().X.Size() / 1000 + 1;
int start = (int)(ImPlot::GetPlotLimits().X.Min - t_min);
start = start < 0 ? 0 : start > HugeTimeData::Size - 1 ? HugeTimeData::Size - 1 : start;
int end = (int)(ImPlot::GetPlotLimits().X.Max - t_min) + 1000;
end = end < 0 ? 0 : end > HugeTimeData::Size - 1 ? HugeTimeData::Size - 1 : end;
int size = (end - start)/downsample;
// plot it
ImPlot::PlotLine("Time Series", &data->Ts[start], &data->Ys[start], size, 0, sizeof(double)*downsample);
}
// plot time now
double t_now = (double)time(0);
double y_now = HugeTimeData::GetY(t_now);
ImPlot::PlotScatter("Now",&t_now,&y_now,1);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Multiple Y-Axes")) {
static t_float xs[1001], xs2[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = (i*0.1f);
ys1[i] = Sin(xs[i]) * 3 + 1;
ys2[i] = Cos(xs[i]) * 0.2f + 0.5f;
ys3[i] = Sin(xs[i]+0.5f) * 100 + 200;
xs2[i] = xs[i] + 10.0f;
}
static bool y2_axis = true;
static bool y3_axis = true;
ImGui::Checkbox("Y-Axis 2", &y2_axis);
ImGui::SameLine();
ImGui::Checkbox("Y-Axis 3", &y3_axis);
ImGui::SameLine();
// you can fit axes programatically
ImGui::SameLine(); if (ImGui::Button("Fit X")) ImPlot::FitNextPlotAxes(true, false, false, false);
ImGui::SameLine(); if (ImGui::Button("Fit Y")) ImPlot::FitNextPlotAxes(false, true, false, false);
ImGui::SameLine(); if (ImGui::Button("Fit Y2")) ImPlot::FitNextPlotAxes(false, false, true, false);
ImGui::SameLine(); if (ImGui::Button("Fit Y3")) ImPlot::FitNextPlotAxes(false, false, false, true);
ImPlot::SetNextPlotLimits(0.1, 100, 0, 10);
ImPlot::SetNextPlotLimitsY(0, 1, ImGuiCond_Once, 1);
ImPlot::SetNextPlotLimitsY(0, 300, ImGuiCond_Once, 2);
if (ImPlot::BeginPlot("Multi-Axis Plot", NULL, NULL, ImVec2(-1,0),
(y2_axis ? ImPlotFlags_YAxis2 : 0) |
(y3_axis ? ImPlotFlags_YAxis3 : 0))) {
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
ImPlot::PlotLine("f(x) = sin(x)*3+1", xs, ys1, 1001);
if (y2_axis) {
ImPlot::SetPlotYAxis(1);
ImPlot::PlotLine("f(x) = cos(x)*.2+.5 (Y2)", xs, ys2, 1001);
}
if (y3_axis) {
ImPlot::SetPlotYAxis(2);
ImPlot::PlotLine("f(x) = sin(x+.5)*100+200 (Y3)", xs2, ys3, 1001);
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Linked Axes")) {
static double xmin = 0, xmax = 1, ymin = 0, ymax = 1;
static bool linkx = true, linky = true;
t_float data[2] = {0,1};
ImGui::Checkbox("Link X", &linkx);
ImGui::SameLine();
ImGui::Checkbox("Link Y", &linky);
ImPlot::LinkNextPlotLimits(linkx ? &xmin : NULL , linkx ? &xmax : NULL, linky ? &ymin : NULL, linky ? &ymax : NULL);
if (ImPlot::BeginPlot("Plot A")) {
ImPlot::PlotLine("Line",data,2);
ImPlot::EndPlot();
}
ImPlot::LinkNextPlotLimits(linkx ? &xmin : NULL , linkx ? &xmax : NULL, linky ? &ymin : NULL, linky ? &ymax : NULL);
if (ImPlot::BeginPlot("Plot B")) {
ImPlot::PlotLine("Line",data,2);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Querying")) {
static ImVector<t_float2> data;
static ImPlotLimits range, query;
ImGui::BulletText("Ctrl + click in the plot area to draw points.");
ImGui::BulletText("Middle click (or Ctrl + right click) and drag to create a query rect.");
ImGui::Indent();
ImGui::BulletText("Hold Alt to expand query horizontally.");
ImGui::BulletText("Hold Shift to expand query vertically.");
ImGui::BulletText("The query rect can be dragged after it's created.");
ImGui::Unindent();
if (ImPlot::BeginPlot("##Drawing", NULL, NULL, ImVec2(-1,0), ImPlotFlags_Query, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
if (ImPlot::IsPlotHovered() && ImGui::IsMouseClicked(0) && ImGui::GetIO().KeyCtrl) {
ImPlotPoint pt = ImPlot::GetPlotMousePos();
data.push_back(t_float2((t_float)pt.x, (t_float)pt.y));
}
if (data.size() > 0)
ImPlot::PlotScatter("Points", &data[0].x, &data[0].y, data.size(), 0, 2 * sizeof(t_float));
if (ImPlot::IsPlotQueried() && data.size() > 0) {
ImPlotLimits range2 = ImPlot::GetPlotQuery();
int cnt = 0;
t_float2 avg;
for (int i = 0; i < data.size(); ++i) {
if (range2.Contains(data[i].x, data[i].y)) {
avg.x += data[i].x;
avg.y += data[i].y;
cnt++;
}
}
if (cnt > 0) {
avg.x = avg.x / cnt;
avg.y = avg.y / cnt;
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square);
ImPlot::PlotScatter("Average", &avg.x, &avg.y, 1);
}
}
range = ImPlot::GetPlotLimits();
query = ImPlot::GetPlotQuery();
ImPlot::EndPlot();
}
ImGui::Text("The current plot limits are: [%g,%g,%g,%g]", range.X.Min, range.X.Max, range.Y.Min, range.Y.Max);
ImGui::Text("The current query limits are: [%g,%g,%g,%g]", query.X.Min, query.X.Max, query.Y.Min, query.Y.Max);
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Views")) {
// mimic's soulthread's imgui_plot demo
static t_float x_data[512];
static t_float y_data1[512];
static t_float y_data2[512];
static t_float y_data3[512];
static t_float sampling_freq = 44100;
static t_float freq = 500;
for (size_t i = 0; i < 512; ++i) {
const t_float t = i / sampling_freq;
x_data[i] = t;
const t_float arg = 2 * 3.14f * freq * t;
y_data1[i] = Sin(arg);
y_data2[i] = y_data1[i] * -0.6f + Sin(2 * arg) * 0.4f;
y_data3[i] = y_data2[i] * -0.6f + Sin(3 * arg) * 0.4f;
}
ImGui::BulletText("Query the first plot to render a subview in the second plot (see above for controls).");
ImPlot::SetNextPlotLimits(0,0.01,-1,1);
ImPlotAxisFlags flags = ImPlotAxisFlags_NoTickLabels;
ImPlotLimits query;
if (ImPlot::BeginPlot("##View1",NULL,NULL,ImVec2(-1,150), ImPlotFlags_Query, flags, flags)) {
ImPlot::PlotLine("Signal 1", x_data, y_data1, 512);
ImPlot::PlotLine("Signal 2", x_data, y_data2, 512);
ImPlot::PlotLine("Signal 3", x_data, y_data3, 512);
query = ImPlot::GetPlotQuery();
ImPlot::EndPlot();
}
ImPlot::SetNextPlotLimits(query.X.Min, query.X.Max, query.Y.Min, query.Y.Max, ImGuiCond_Always);
if (ImPlot::BeginPlot("##View2",NULL,NULL,ImVec2(-1,150), ImPlotFlags_CanvasOnly, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotLine("Signal 1", x_data, y_data1, 512);
ImPlot::PlotLine("Signal 2", x_data, y_data2, 512);
ImPlot::PlotLine("Signal 3", x_data, y_data3, 512);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Drag and Drop")) {
const int K_CHANNELS = 9;
srand((int)(10000000 * DEMO_TIME));
static bool paused = false;
static bool init = true;
static ScrollingBuffer data[K_CHANNELS];
static bool show[K_CHANNELS];
static int yAxis[K_CHANNELS];
if (init) {
for (int i = 0; i < K_CHANNELS; ++i) {
show[i] = false;
yAxis[i] = 0;
}
init = false;
}
ImGui::BulletText("Drag data items from the left column onto the plot or onto a specific y-axis.");
ImGui::BulletText("Redrag data items from the legend onto other y-axes.");
ImGui::BeginGroup();
if (ImGui::Button("Clear", ImVec2(100, 0))) {
for (int i = 0; i < K_CHANNELS; ++i) {
show[i] = false;
data[i].Data.shrink(0);
data[i].Offset = 0;
}
}
if (ImGui::Button(paused ? "Resume" : "Pause", ImVec2(100,0)))
paused = !paused;
for (int i = 0; i < K_CHANNELS; ++i) {
char label[16];
sprintf(label, show[i] ? "data_%d (Y%d)" : "data_%d", i, yAxis[i]+1);
ImGui::Selectable(label, false, 0, ImVec2(100, 0));
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("DND_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImGui::EndDragDropSource();
}
}
ImGui::EndGroup();
ImGui::SameLine();
srand((unsigned int)DEMO_TIME*10000000);
static t_float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;
for (int i = 0; i < K_CHANNELS; ++i) {
if (show[i])
data[i].AddPoint(t, (i+1)*0.1f + RandomRange(-0.01f,0.01f));
}
}
ImPlot::SetNextPlotLimitsX((double)t - 10, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
if (ImPlot::BeginPlot("##DND", NULL, NULL, ImVec2(-1,0), ImPlotFlags_YAxis2 | ImPlotFlags_YAxis3, ImPlotAxisFlags_NoTickLabels)) {
for (int i = 0; i < K_CHANNELS; ++i) {
if (show[i] && data[i].Data.size() > 0) {
char label[K_CHANNELS];
sprintf(label, "data_%d", i);
ImPlot::SetPlotYAxis(yAxis[i]);
ImPlot::PlotLine(label, &data[i].Data[0].x, &data[i].Data[0].y, data[i].Data.size(), data[i].Offset, 2 * sizeof(t_float));
// allow legend labels to be dragged and dropped
if (ImPlot::BeginLegendDragDropSource(label)) {
ImGui::SetDragDropPayload("DND_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImPlot::EndLegendDragDropSource();
}
}
}
// make our plot a drag and drop target
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_PLOT")) {
int i = *(int*)payload->Data;
show[i] = true;
yAxis[i] = 0;
// set specific y-axis if hovered
for (int y = 0; y < 3; y++) {
if (ImPlot::IsPlotYAxisHovered(y))
yAxis[i] = y;
}
}
ImGui::EndDragDropTarget();
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Digital and Analog Signals")) {
static bool paused = false;
#define K_PLOT_DIGITAL_CH_COUNT 4
#define K_PLOT_ANALOG_CH_COUNT 4
static ScrollingBuffer dataDigital[K_PLOT_DIGITAL_CH_COUNT];
static ScrollingBuffer dataAnalog[K_PLOT_ANALOG_CH_COUNT];
static bool showDigital[K_PLOT_DIGITAL_CH_COUNT];
static bool showAnalog[K_PLOT_ANALOG_CH_COUNT];
ImGui::BulletText("You can plot digital and analog signals on the same plot.");
ImGui::BulletText("Digital signals do not respond to Y drag and zoom, so that");
ImGui::Indent();
ImGui::Text("you can drag analog signals over the rising/falling digital edge.");
ImGui::Unindent();
ImGui::BeginGroup();
if (ImGui::Button("Clear", ImVec2(100, 0))) {
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i)
showDigital[i] = false;
for (int i = 0; i < K_PLOT_ANALOG_CH_COUNT; ++i)
showAnalog[i] = false;
}
if (ImGui::Button(paused ? "Resume" : "Pause", ImVec2(100,0)))
paused = !paused;
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i) {
char label[32];
sprintf(label, "digital_%d", i);
ImGui::Checkbox(label, &showDigital[i]);
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("DND_DIGITAL_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImGui::EndDragDropSource();
}
}
for (int i = 0; i < K_PLOT_ANALOG_CH_COUNT; ++i) {
char label[32];
sprintf(label, "analog_%d", i);
ImGui::Checkbox(label, &showAnalog[i]);
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("DND_ANALOG_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImGui::EndDragDropSource();
}
}
ImGui::EndGroup();
ImGui::SameLine();
static t_float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;
//digital signal values
int i = 0;
if (showDigital[i])
dataDigital[i].AddPoint(t, Sin(2*t) > 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, Sin(2*t) < 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, Fmod(t,5.0f));
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, Sin(2*t) < 0.17);
//Analog signal values
i = 0;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, Sin(2*t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, Cos(2*t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, Sin(2*t) * Cos(2*t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, Sin(2*t) - Cos(2*t));
}
ImPlot::SetNextPlotLimitsY(-1, 1);
ImPlot::SetNextPlotLimitsX(t - 10.0, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
if (ImPlot::BeginPlot("##Digital")) {
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i) {
if (showDigital[i] && dataDigital[i].Data.size() > 0) {
char label[32];
sprintf(label, "digital_%d", i);
ImPlot::PlotDigital(label, &dataDigital[i].Data[0].x, &dataDigital[i].Data[0].y, dataDigital[i].Data.size(), dataDigital[i].Offset, 2 * sizeof(t_float));
}
}
for (int i = 0; i < K_PLOT_ANALOG_CH_COUNT; ++i) {
if (showAnalog[i]) {
char label[32];
sprintf(label, "analog_%d", i);
if (dataAnalog[i].Data.size() > 0)
ImPlot::PlotLine(label, &dataAnalog[i].Data[0].x, &dataAnalog[i].Data[0].y, dataAnalog[i].Data.size(), dataAnalog[i].Offset, 2 * sizeof(t_float));
}
}
ImPlot::EndPlot();
}
if (ImGui::BeginDragDropTarget()) {
const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_DIGITAL_PLOT");
if (payload) {
int i = *(int*)payload->Data;
showDigital[i] = true;
}
else
{
payload = ImGui::AcceptDragDropPayload("DND_ANALOG_PLOT");
if (payload) {
int i = *(int*)payload->Data;
showAnalog[i] = true;
}
}
ImGui::EndDragDropTarget();
}
}
if (ImGui::CollapsingHeader("Tables")) {
#ifdef IMGUI_HAS_TABLE
static ImGuiTableFlags flags = ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_RowBg;
static bool anim = true;
static int offset = 0;
ImGui::BulletText("Plots can be used inside of ImGui tables.");
ImGui::Checkbox("Animate",&anim);
if (anim)
offset = (offset + 1) % 100;
if (ImGui::BeginTable("##table", 3, flags, ImVec2(-1,0))) {
ImGui::TableSetupColumn("Electrode", ImGuiTableColumnFlags_WidthFixed, 75.0f);
ImGui::TableSetupColumn("Voltage", ImGuiTableColumnFlags_WidthFixed, 75.0f);
ImGui::TableSetupColumn("EMG Signal");
ImGui::TableAutoHeaders();
ImPlot::PushColormap(ImPlotColormap_Cool);
for (int row = 0; row < 10; row++) {
ImGui::TableNextRow();
static float data[100];
srand(row);
for (int i = 0; i < 100; ++i)
data[i] = (float)RandomRange(0,10);
ImGui::TableSetColumnIndex(0);
ImGui::Text("EMG %d", row);
ImGui::TableSetColumnIndex(1);
ImGui::Text("%.3f V", data[offset]);
ImGui::TableSetColumnIndex(2);
ImGui::PushID(row);
MyImPlot::Sparkline("##spark",data,100,0,11.0f,offset,ImPlot::GetColormapColor(row),ImVec2(-1, 35));
ImGui::PopID();
}
ImPlot::PopColormap();
ImGui::EndTable();
}
#else
ImGui::BulletText("You need to merge the ImGui 'tables' branch for this section.");
#endif
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Offset and Stride")) {
static const int k_circles = 11;
static const int k_points_per = 50;
static const int k_size = 2 * k_points_per * k_circles;
static t_float interleaved_data[k_size];
for (int p = 0; p < k_points_per; ++p) {
for (int c = 0; c < k_circles; ++c) {
t_float r = (t_float)c / (k_circles - 1) * 0.2f + 0.2f;
interleaved_data[p*2*k_circles + 2*c + 0] = 0.5f + r * Cos((t_float)p/k_points_per * 6.28f);
interleaved_data[p*2*k_circles + 2*c + 1] = 0.5f + r * Sin((t_float)p/k_points_per * 6.28f);
}
}
static int offset = 0;
ImGui::BulletText("Offsetting is useful for realtime plots (see above) and circular buffers.");
ImGui::BulletText("Striding is useful for interleaved data (e.g. audio) or plotting structs.");
ImGui::BulletText("Here, all circle data is stored in a single interleaved buffer:");
ImGui::BulletText("[c0.x0 c0.y0 ... cn.x0 cn.y0 c0.x1 c0.y1 ... cn.x1 cn.y1 ... cn.xm cn.ym]");
ImGui::BulletText("The offset value indicates which circle point index is considered the first.");
ImGui::BulletText("Offsets can be negative and/or larger than the actual data count.");
ImGui::SliderInt("Offset", &offset, -2*k_points_per, 2*k_points_per);
if (ImPlot::BeginPlot("##strideoffset")) {
ImPlot::PushColormap(ImPlotColormap_Jet);
char buff[16];
for (int c = 0; c < k_circles; ++c) {
sprintf(buff, "Circle %d", c);
ImPlot::PlotLine(buff, &interleaved_data[c*2 + 0], &interleaved_data[c*2 + 1], k_points_per, offset, 2*k_circles*sizeof(t_float));
}
ImPlot::EndPlot();
ImPlot::PopColormap();
}
// offset++; uncomment for animation!
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Getters")) {
ImGui::BulletText("Most plotters can be passed a function pointer for getting data.");
ImGui::BulletText("You can optionally pass user data to be given to your getter.");
ImGui::BulletText("C++ lambdas can be passed as function pointers as well.");
if (ImPlot::BeginPlot("##Custom Getters")) {
ImPlot::PlotLine("Spiral", MyImPlot::Spiral, NULL, 1000);
static MyImPlot::WaveData data1(0.001, 0.2, 2, 0.75);
static MyImPlot::WaveData data2(0.001, 0.2, 4, 0.25);
ImPlot::PlotLine("Waves", MyImPlot::SineWave, &data1, 1000);
ImPlot::PlotLine("Waves", MyImPlot::SawWave, &data2, 1000);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded("Waves", MyImPlot::SineWave, &data1, MyImPlot::SawWave, &data2, 1000);
ImPlot::PopStyleVar();
// you can also pass C++ lambdas:
// auto lamda = [](void* data, int idx) { ... return ImPlotPoint(x,y); };
// ImPlot::PlotLine("My Lambda", lambda, data, 1000);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Ticks")) {
static bool custom_ticks = true;
static bool custom_labels = true;
ImGui::Checkbox("Show Custom Ticks", &custom_ticks);
if (custom_ticks) {
ImGui::SameLine();
ImGui::Checkbox("Show Custom Labels", &custom_labels);
}
double pi = 3.14;
const char* pi_str[] = {"PI"};
static double yticks[] = {1,3,7,9};
static const char* ylabels[] = {"One","Three","Seven","Nine"};
static double yticks_aux[] = {0.2,0.4,0.6};
static const char* ylabels_aux[] = {"A","B","C","D","E","F"};
if (custom_ticks) {
ImPlot::SetNextPlotTicksX(&pi,1,custom_labels ? pi_str : NULL, true);
ImPlot::SetNextPlotTicksY(yticks, 4, custom_labels ? ylabels : NULL);
ImPlot::SetNextPlotTicksY(yticks_aux, 3, custom_labels ? ylabels_aux : NULL, false, 1);
ImPlot::SetNextPlotTicksY(0, 1, 6, custom_labels ? ylabels_aux : NULL, false, 2);
}
ImPlot::SetNextPlotLimits(2.5,5,0,10);
if (ImPlot::BeginPlot("Custom Ticks", NULL, NULL, ImVec2(-1,0), ImPlotFlags_YAxis2 | ImPlotFlags_YAxis3)) {
// nothing to see here, just the ticks
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Styles")) {
ImPlot::PushColormap(ImPlotColormap_Deep);
// normally you wouldn't change the entire style each frame
ImPlotStyle backup = ImPlot::GetStyle();
MyImPlot::StyleSeaborn();
ImPlot::SetNextPlotLimits(-0.5f, 9.5f, 0, 10);
if (ImPlot::BeginPlot("seaborn style", "x-axis", "y-axis")) {
t_float lin[10] = {8,8,9,7,8,8,8,9,7,8};
t_float bar[10] = {1,2,5,3,4,1,2,5,3,4};
t_float dot[10] = {7,6,6,7,8,5,6,5,8,7};
ImPlot::PlotBars("Bars", bar, 10, 0.5f);
ImPlot::PlotLine("Line", lin, 10);
ImPlot::NextColormapColor(); // skip green
ImPlot::PlotScatter("Scatter", dot, 10);
ImPlot::EndPlot();
}
ImPlot::GetStyle() = backup;
ImPlot::PopColormap();
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Rendering")) {
if (ImPlot::BeginPlot("##CustomRend")) {
ImVec2 cntr = ImPlot::PlotToPixels(ImPlotPoint(0.5f, 0.5f));
ImVec2 rmin = ImPlot::PlotToPixels(ImPlotPoint(0.25f, 0.75f));
ImVec2 rmax = ImPlot::PlotToPixels(ImPlotPoint(0.75f, 0.25f));
ImPlot::PushPlotClipRect();
ImPlot::GetPlotDrawList()->AddCircleFilled(cntr,20,IM_COL32(255,255,0,255),20);
ImPlot::GetPlotDrawList()->AddRect(rmin, rmax, IM_COL32(128,0,255,255));
ImPlot::PopPlotClipRect();
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Context Menus")) {
ImGui::BulletText("You can implement legend context menus to inject per-item controls and widgets.");
ImGui::BulletText("Right click the legend label/icon to edit custom item attributes.");
static float frequency = 0.1f;
static float amplitude = 0.5f;
static ImVec4 color = ImVec4(1,1,0,1);
static float alpha = 1.0f;
static bool line = false;
static float thickness = 1;
static bool markers = false;
static bool shaded = false;
static t_float vals[101];
for (int i = 0; i < 101; ++i)
vals[i] = amplitude * Sin(frequency * i);
ImPlot::SetNextPlotLimits(0,100,-1,1);
if (ImPlot::BeginPlot("Right Click the Legend")) {
// rendering logic
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, alpha);
if (!line) {
ImPlot::SetNextFillStyle(color);
ImPlot::PlotBars("Right Click Me", vals, 101);
}
else {
if (markers) ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextLineStyle(color, thickness);
ImPlot::PlotLine("Right Click Me", vals, 101);
if (shaded) ImPlot::PlotShaded("Right Click Me",vals,101);
}
ImPlot::PopStyleVar();
// custom legend context menu
if (ImPlot::BeginLegendPopup("Right Click Me")) {
ImGui::SliderFloat("Frequency",&frequency,0,1,"%0.2f");
ImGui::SliderFloat("Amplitude",&amplitude,0,1,"%0.2f");
ImGui::Separator();
ImGui::ColorEdit3("Color",&color.x);
ImGui::SliderFloat("Transparency",&alpha,0,1,"%.2f");
ImGui::Checkbox("Line Plot", &line);
if (line) {
ImGui::SliderFloat("Thickness", &thickness, 0, 5);
ImGui::Checkbox("Markers", &markers);
ImGui::Checkbox("Shaded",&shaded);
}
ImPlot::EndLegendPopup();
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Plotters and Tooltips")) {
ImGui::BulletText("You can create custom plotters or extend ImPlot using implot_internal.h.");
double dates[] = {1546300800,1546387200,1546473600,1546560000,1546819200,1546905600,1546992000,1547078400,1547164800,1547424000,1547510400,1547596800,1547683200,1547769600,1547942400,1548028800,1548115200,1548201600,1548288000,1548374400,1548633600,1548720000,1548806400,1548892800,1548979200,1549238400,1549324800,1549411200,1549497600,1549584000,1549843200,1549929600,1550016000,1550102400,1550188800,1550361600,1550448000,1550534400,1550620800,1550707200,1550793600,1551052800,1551139200,1551225600,1551312000,1551398400,1551657600,1551744000,1551830400,1551916800,1552003200,1552262400,1552348800,1552435200,1552521600,1552608000,1552867200,1552953600,1553040000,1553126400,1553212800,1553472000,1553558400,1553644800,1553731200,1553817600,1554076800,1554163200,1554249600,1554336000,1554422400,1554681600,1554768000,1554854400,1554940800,1555027200,1555286400,1555372800,1555459200,1555545600,1555632000,1555891200,1555977600,1556064000,1556150400,1556236800,1556496000,1556582400,1556668800,1556755200,1556841600,1557100800,1557187200,1557273600,1557360000,1557446400,1557705600,1557792000,1557878400,1557964800,1558051200,1558310400,1558396800,1558483200,1558569600,1558656000,1558828800,1558915200,1559001600,1559088000,1559174400,1559260800,1559520000,1559606400,1559692800,1559779200,1559865600,1560124800,1560211200,1560297600,1560384000,1560470400,1560729600,1560816000,1560902400,1560988800,1561075200,1561334400,1561420800,1561507200,1561593600,1561680000,1561939200,1562025600,1562112000,1562198400,1562284800,1562544000,1562630400,1562716800,1562803200,1562889600,1563148800,1563235200,1563321600,1563408000,1563494400,1563753600,1563840000,1563926400,1564012800,1564099200,1564358400,1564444800,1564531200,1564617600,1564704000,1564963200,1565049600,1565136000,1565222400,1565308800,1565568000,1565654400,1565740800,1565827200,1565913600,1566172800,1566259200,1566345600,1566432000,1566518400,1566777600,1566864000,1566950400,1567036800,1567123200,1567296000,1567382400,1567468800,1567555200,1567641600,1567728000,1567987200,1568073600,1568160000,1568246400,1568332800,1568592000,1568678400,1568764800,1568851200,1568937600,1569196800,1569283200,1569369600,1569456000,1569542400,1569801600,1569888000,1569974400,1570060800,1570147200,1570406400,1570492800,1570579200,1570665600,1570752000,1571011200,1571097600,1571184000,1571270400,1571356800,1571616000,1571702400,1571788800,1571875200,1571961600};
double opens[] = {1284.7,1319.9,1318.7,1328,1317.6,1321.6,1314.3,1325,1319.3,1323.1,1324.7,1321.3,1323.5,1322,1281.3,1281.95,1311.1,1315,1314,1313.1,1331.9,1334.2,1341.3,1350.6,1349.8,1346.4,1343.4,1344.9,1335.6,1337.9,1342.5,1337,1338.6,1337,1340.4,1324.65,1324.35,1349.5,1371.3,1367.9,1351.3,1357.8,1356.1,1356,1347.6,1339.1,1320.6,1311.8,1314,1312.4,1312.3,1323.5,1319.1,1327.2,1332.1,1320.3,1323.1,1328,1330.9,1338,1333,1335.3,1345.2,1341.1,1332.5,1314,1314.4,1310.7,1314,1313.1,1315,1313.7,1320,1326.5,1329.2,1314.2,1312.3,1309.5,1297.4,1293.7,1277.9,1295.8,1295.2,1290.3,1294.2,1298,1306.4,1299.8,1302.3,1297,1289.6,1302,1300.7,1303.5,1300.5,1303.2,1306,1318.7,1315,1314.5,1304.1,1294.7,1293.7,1291.2,1290.2,1300.4,1284.2,1284.25,1301.8,1295.9,1296.2,1304.4,1323.1,1340.9,1341,1348,1351.4,1351.4,1343.5,1342.3,1349,1357.6,1357.1,1354.7,1361.4,1375.2,1403.5,1414.7,1433.2,1438,1423.6,1424.4,1418,1399.5,1435.5,1421.25,1434.1,1412.4,1409.8,1412.2,1433.4,1418.4,1429,1428.8,1420.6,1441,1460.4,1441.7,1438.4,1431,1439.3,1427.4,1431.9,1439.5,1443.7,1425.6,1457.5,1451.2,1481.1,1486.7,1512.1,1515.9,1509.2,1522.3,1513,1526.6,1533.9,1523,1506.3,1518.4,1512.4,1508.8,1545.4,1537.3,1551.8,1549.4,1536.9,1535.25,1537.95,1535.2,1556,1561.4,1525.6,1516.4,1507,1493.9,1504.9,1506.5,1513.1,1506.5,1509.7,1502,1506.8,1521.5,1529.8,1539.8,1510.9,1511.8,1501.7,1478,1485.4,1505.6,1511.6,1518.6,1498.7,1510.9,1510.8,1498.3,1492,1497.7,1484.8,1494.2,1495.6,1495.6,1487.5,1491.1,1495.1,1506.4};
double highs[] = {1284.75,1320.6,1327,1330.8,1326.8,1321.6,1326,1328,1325.8,1327.1,1326,1326,1323.5,1322.1,1282.7,1282.95,1315.8,1316.3,1314,1333.2,1334.7,1341.7,1353.2,1354.6,1352.2,1346.4,1345.7,1344.9,1340.7,1344.2,1342.7,1342.1,1345.2,1342,1350,1324.95,1330.75,1369.6,1374.3,1368.4,1359.8,1359,1357,1356,1353.4,1340.6,1322.3,1314.1,1316.1,1312.9,1325.7,1323.5,1326.3,1336,1332.1,1330.1,1330.4,1334.7,1341.1,1344.2,1338.8,1348.4,1345.6,1342.8,1334.7,1322.3,1319.3,1314.7,1316.6,1316.4,1315,1325.4,1328.3,1332.2,1329.2,1316.9,1312.3,1309.5,1299.6,1296.9,1277.9,1299.5,1296.2,1298.4,1302.5,1308.7,1306.4,1305.9,1307,1297.2,1301.7,1305,1305.3,1310.2,1307,1308,1319.8,1321.7,1318.7,1316.2,1305.9,1295.8,1293.8,1293.7,1304.2,1302,1285.15,1286.85,1304,1302,1305.2,1323,1344.1,1345.2,1360.1,1355.3,1363.8,1353,1344.7,1353.6,1358,1373.6,1358.2,1369.6,1377.6,1408.9,1425.5,1435.9,1453.7,1438,1426,1439.1,1418,1435,1452.6,1426.65,1437.5,1421.5,1414.1,1433.3,1441.3,1431.4,1433.9,1432.4,1440.8,1462.3,1467,1443.5,1444,1442.9,1447,1437.6,1440.8,1445.7,1447.8,1458.2,1461.9,1481.8,1486.8,1522.7,1521.3,1521.1,1531.5,1546.1,1534.9,1537.7,1538.6,1523.6,1518.8,1518.4,1514.6,1540.3,1565,1554.5,1556.6,1559.8,1541.9,1542.9,1540.05,1558.9,1566.2,1561.9,1536.2,1523.8,1509.1,1506.2,1532.2,1516.6,1519.7,1515,1519.5,1512.1,1524.5,1534.4,1543.3,1543.3,1542.8,1519.5,1507.2,1493.5,1511.4,1525.8,1522.2,1518.8,1515.3,1518,1522.3,1508,1501.5,1503,1495.5,1501.1,1497.9,1498.7,1492.1,1499.4,1506.9,1520.9};
double lows[] = {1282.85,1315,1318.7,1309.6,1317.6,1312.9,1312.4,1319.1,1319,1321,1318.1,1321.3,1319.9,1312,1280.5,1276.15,1308,1309.9,1308.5,1312.3,1329.3,1333.1,1340.2,1347,1345.9,1338,1340.8,1335,1332,1337.9,1333,1336.8,1333.2,1329.9,1340.4,1323.85,1324.05,1349,1366.3,1351.2,1349.1,1352.4,1350.7,1344.3,1338.9,1316.3,1308.4,1306.9,1309.6,1306.7,1312.3,1315.4,1319,1327.2,1317.2,1320,1323,1328,1323,1327.8,1331.7,1335.3,1336.6,1331.8,1311.4,1310,1309.5,1308,1310.6,1302.8,1306.6,1313.7,1320,1322.8,1311,1312.1,1303.6,1293.9,1293.5,1291,1277.9,1294.1,1286,1289.1,1293.5,1296.9,1298,1299.6,1292.9,1285.1,1288.5,1296.3,1297.2,1298.4,1298.6,1302,1300.3,1312,1310.8,1301.9,1292,1291.1,1286.3,1289.2,1289.9,1297.4,1283.65,1283.25,1292.9,1295.9,1290.8,1304.2,1322.7,1336.1,1341,1343.5,1345.8,1340.3,1335.1,1341.5,1347.6,1352.8,1348.2,1353.7,1356.5,1373.3,1398,1414.7,1427,1416.4,1412.7,1420.1,1396.4,1398.8,1426.6,1412.85,1400.7,1406,1399.8,1404.4,1415.5,1417.2,1421.9,1415,1413.7,1428.1,1434,1435.7,1427.5,1429.4,1423.9,1425.6,1427.5,1434.8,1422.3,1412.1,1442.5,1448.8,1468.2,1484.3,1501.6,1506.2,1498.6,1488.9,1504.5,1518.3,1513.9,1503.3,1503,1506.5,1502.1,1503,1534.8,1535.3,1541.4,1528.6,1525.6,1535.25,1528.15,1528,1542.6,1514.3,1510.7,1505.5,1492.1,1492.9,1496.8,1493.1,1503.4,1500.9,1490.7,1496.3,1505.3,1505.3,1517.9,1507.4,1507.1,1493.3,1470.5,1465,1480.5,1501.7,1501.4,1493.3,1492.1,1505.1,1495.7,1478,1487.1,1480.8,1480.6,1487,1488.3,1484.8,1484,1490.7,1490.4,1503.1};
double closes[] = {1283.35,1315.3,1326.1,1317.4,1321.5,1317.4,1323.5,1319.2,1321.3,1323.3,1319.7,1325.1,1323.6,1313.8,1282.05,1279.05,1314.2,1315.2,1310.8,1329.1,1334.5,1340.2,1340.5,1350,1347.1,1344.3,1344.6,1339.7,1339.4,1343.7,1337,1338.9,1340.1,1338.7,1346.8,1324.25,1329.55,1369.6,1372.5,1352.4,1357.6,1354.2,1353.4,1346,1341,1323.8,1311.9,1309.1,1312.2,1310.7,1324.3,1315.7,1322.4,1333.8,1319.4,1327.1,1325.8,1330.9,1325.8,1331.6,1336.5,1346.7,1339.2,1334.7,1313.3,1316.5,1312.4,1313.4,1313.3,1312.2,1313.7,1319.9,1326.3,1331.9,1311.3,1313.4,1309.4,1295.2,1294.7,1294.1,1277.9,1295.8,1291.2,1297.4,1297.7,1306.8,1299.4,1303.6,1302.2,1289.9,1299.2,1301.8,1303.6,1299.5,1303.2,1305.3,1319.5,1313.6,1315.1,1303.5,1293,1294.6,1290.4,1291.4,1302.7,1301,1284.15,1284.95,1294.3,1297.9,1304.1,1322.6,1339.3,1340.1,1344.9,1354,1357.4,1340.7,1342.7,1348.2,1355.1,1355.9,1354.2,1362.1,1360.1,1408.3,1411.2,1429.5,1430.1,1426.8,1423.4,1425.1,1400.8,1419.8,1432.9,1423.55,1412.1,1412.2,1412.8,1424.9,1419.3,1424.8,1426.1,1423.6,1435.9,1440.8,1439.4,1439.7,1434.5,1436.5,1427.5,1432.2,1433.3,1441.8,1437.8,1432.4,1457.5,1476.5,1484.2,1519.6,1509.5,1508.5,1517.2,1514.1,1527.8,1531.2,1523.6,1511.6,1515.7,1515.7,1508.5,1537.6,1537.2,1551.8,1549.1,1536.9,1529.4,1538.05,1535.15,1555.9,1560.4,1525.5,1515.5,1511.1,1499.2,1503.2,1507.4,1499.5,1511.5,1513.4,1515.8,1506.2,1515.1,1531.5,1540.2,1512.3,1515.2,1506.4,1472.9,1489,1507.9,1513.8,1512.9,1504.4,1503.9,1512.8,1500.9,1488.7,1497.6,1483.5,1494,1498.3,1494.1,1488.1,1487.5,1495.7,1504.7,1505.3};
static bool tooltip = true;
ImGui::Checkbox("Show Tooltip", &tooltip);
ImGui::SameLine();
static ImVec4 bullCol = ImVec4(0.000f, 1.000f, 0.441f, 1.000f);
static ImVec4 bearCol = ImVec4(0.853f, 0.050f, 0.310f, 1.000f);
ImGui::SameLine(); ImGui::ColorEdit4("##Bull", &bullCol.x, ImGuiColorEditFlags_NoInputs);
ImGui::SameLine(); ImGui::ColorEdit4("##Bear", &bearCol.x, ImGuiColorEditFlags_NoInputs);
ImPlot::GetStyle().UseLocalTime = false;
ImPlot::SetNextPlotLimits(1546300800, 1571961600, 1250, 1600);
if (ImPlot::BeginPlot("Candlestick Chart","Day","USD",ImVec2(-1,0),0,ImPlotAxisFlags_Time)) {
MyImPlot::PlotCandlestick("GOOGL",dates, opens, closes, lows, highs, 218, tooltip, 0.25f, bullCol, bearCol);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
ImGui::End();
}
} // namespace ImPlot
namespace MyImPlot {
ImPlotPoint SineWave(void* data , int idx) {
WaveData* wd = (WaveData*)data;
double x = idx * wd->X;
return ImPlotPoint(x, wd->Offset + wd->Amp * sin(2 * 3.14 * wd->Freq * x));
}
ImPlotPoint SawWave(void* data, int idx) {
WaveData* wd = (WaveData*)data;
double x = idx * wd->X;
return ImPlotPoint(x, wd->Offset + wd->Amp * (-2 / 3.14 * atan(cos(3.14 * wd->Freq * x) / sin(3.14 * wd->Freq * x))));
}
ImPlotPoint Spiral(void*, int idx) {
float r = 0.9f; // outer radius
float a = 0; // inner radius
float b = 0.05f; // increment per rev
float n = (r - a) / b; // number of revolutions
double th = 2 * n * 3.14; // angle
float Th = float(th * idx / (1000 - 1));
return ImPlotPoint(0.5f+(a + b*Th / (2.0f * (float) 3.14))*Cos(Th),
0.5f + (a + b*Th / (2.0f * (float)3.14))*Sin(Th));
}
// Example for Tables section. Generates a quick and simple shaded line plot. See implementation at bottom.
void Sparkline(const char* id, const float* values, int count, float min_v, float max_v, int offset, const ImVec4& col, const ImVec2& size) {
ImPlot::PushStyleVar(ImPlotStyleVar_PlotPadding, ImVec2(0,0));
ImPlot::SetNextPlotLimits(0, count - 1, min_v, max_v, ImGuiCond_Always);
if (ImPlot::BeginPlot(id,0,0,size,ImPlotFlags_CanvasOnly|ImPlotFlags_NoChild,ImPlotAxisFlags_NoDecorations,ImPlotAxisFlags_NoDecorations)) {
ImPlot::PushStyleColor(ImPlotCol_Line, col);
ImPlot::PlotLine(id, values, count, offset);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded(id, values, count, 0, offset);
ImPlot::PopStyleVar();
ImPlot::PopStyleColor();
ImPlot::EndPlot();
}
ImPlot::PopStyleVar();
}
void StyleSeaborn() {
ImPlotStyle& style = ImPlot::GetStyle();
ImVec4* colors = style.Colors;
colors[ImPlotCol_Line] = IMPLOT_AUTO_COL;
colors[ImPlotCol_Fill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerOutline] = IMPLOT_AUTO_COL;
colors[ImPlotCol_MarkerFill] = IMPLOT_AUTO_COL;
colors[ImPlotCol_ErrorBar] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_PlotBg] = ImVec4(0.92f, 0.92f, 0.95f, 1.00f);
colors[ImPlotCol_PlotBorder] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
colors[ImPlotCol_LegendBg] = ImVec4(0.92f, 0.92f, 0.95f, 1.00f);
colors[ImPlotCol_LegendBorder] = ImVec4(0.80f, 0.81f, 0.85f, 1.00f);
colors[ImPlotCol_LegendText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_TitleText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_InlayText] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_XAxis] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_XAxisGrid] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_YAxis] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_YAxisGrid] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_YAxis2] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_YAxisGrid2] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_YAxis3] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
colors[ImPlotCol_YAxisGrid3] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
colors[ImPlotCol_Selection] = ImVec4(1.00f, 0.65f, 0.00f, 1.00f);
colors[ImPlotCol_Query] = ImVec4(0.23f, 0.10f, 0.64f, 1.00f);
colors[ImPlotCol_Crosshairs] = ImVec4(0.23f, 0.10f, 0.64f, 0.50f);
style.LineWeight = 1.5;
style.Marker = ImPlotMarker_None;
style.MarkerSize = 4;
style.MarkerWeight = 1;
style.FillAlpha = 1.0f;
style.ErrorBarSize = 5;
style.ErrorBarWeight = 1.5f;
style.DigitalBitHeight = 8;
style.DigitalBitGap = 4;
style.PlotBorderSize = 0;
style.MinorAlpha = 1.0f;
style.MajorTickLen = ImVec2(0,0);
style.MinorTickLen = ImVec2(0,0);
style.MajorTickSize = ImVec2(0,0);
style.MinorTickSize = ImVec2(0,0);
style.MajorGridSize = ImVec2(1.2f,1.2f);
style.MinorGridSize = ImVec2(1.2f,1.2f);
style.PlotPadding = ImVec2(12,12);
style.LabelPadding = ImVec2(5,5);
style.LegendPadding = ImVec2(5,5);
style.InfoPadding = ImVec2(5,5);
style.PlotMinSize = ImVec2(300,225);
}
} // namespaece MyImPlot
// WARNING:
//
// You can use "implot_internal.h" to build custom plotting fuctions or extend ImPlot.
// However, note that forward compatibility of this file is not guaranteed and the
// internal API is subject to change. At some point we hope to bring more of this
// into the public API and expose the necessary building blocks to fully support
// custom plotters. For now, proceed at your own risk!
#include <implot_internal.h>
namespace MyImPlot {
template <typename T>
int BinarySearch(const T* arr, int l, int r, T x) {
if (r >= l) {
int mid = l + (r - l) / 2;
if (arr[mid] == x)
return mid;
if (arr[mid] > x)
return BinarySearch(arr, l, mid - 1, x);
return BinarySearch(arr, mid + 1, r, x);
}
return -1;
}
void PlotCandlestick(const char* label_id, const double* xs, const double* opens, const double* closes, const double* lows, const double* highs, int count, bool tooltip, float width_percent, ImVec4 bullCol, ImVec4 bearCol) {
// get ImGui window DrawList
ImDrawList* draw_list = ImPlot::GetPlotDrawList();
// calc real value width
double half_width = count > 1 ? (xs[1] - xs[0]) * width_percent : width_percent;
// custom tool
if (ImPlot::IsPlotHovered() && tooltip) {
ImPlotPoint mouse = ImPlot::GetPlotMousePos();
mouse.x = ImPlot::RoundTime(ImPlotTime::FromDouble(mouse.x), ImPlotTimeUnit_Day).ToDouble();
float tool_l = ImPlot::PlotToPixels(mouse.x - half_width * 1.5, mouse.y).x;
float tool_r = ImPlot::PlotToPixels(mouse.x + half_width * 1.5, mouse.y).x;
float tool_t = ImPlot::GetPlotPos().y;
float tool_b = tool_t + ImPlot::GetPlotSize().y;
ImPlot::PushPlotClipRect();
draw_list->AddRectFilled(ImVec2(tool_l, tool_t), ImVec2(tool_r, tool_b), IM_COL32(128,128,128,64));
ImPlot::PopPlotClipRect();
// find mouse location index
int idx = BinarySearch(xs, 0, count - 1, mouse.x);
// render tool tip (won't be affected by plot clip rect)
if (idx != -1) {
ImGui::BeginTooltip();
char buff[32];
ImPlot::FormatTime(ImPlotTime::FromDouble(xs[idx]),buff,32,ImPlotTimeFmt_DayMoYr);
ImGui::Text("Day: %s", buff);
ImGui::Text("Open: $%.2f", opens[idx]);
ImGui::Text("Close: $%.2f", closes[idx]);
ImGui::Text("Low: $%.2f", lows[idx]);
ImGui::Text("High: $%.2f", highs[idx]);
ImGui::EndTooltip();
}
}
// begin plot item
if (ImPlot::BeginItem(label_id)) {
// override legend icon color
ImPlot::GetCurrentItem()->Color = ImVec4(0.25f,0.25f,0.25f,1);
// fit data if requested
if (ImPlot::FitThisFrame()) {
for (int i = 0; i < count; ++i) {
ImPlot::FitPoint(ImPlotPoint(xs[i], lows[i]));
ImPlot::FitPoint(ImPlotPoint(xs[i], highs[i]));
}
}
// render data
for (int i = 0; i < count; ++i) {
ImVec2 open_pos = ImPlot::PlotToPixels(xs[i] - half_width, opens[i]);
ImVec2 close_pos = ImPlot::PlotToPixels(xs[i] + half_width, closes[i]);
ImVec2 low_pos = ImPlot::PlotToPixels(xs[i], lows[i]);
ImVec2 high_pos = ImPlot::PlotToPixels(xs[i], highs[i]);
ImU32 color = ImGui::GetColorU32(opens[i] > closes[i] ? bearCol : bullCol);
draw_list->AddLine(low_pos, high_pos, color);
draw_list->AddRectFilled(open_pos, close_pos, color);
}
// end plot item
ImPlot::EndItem();
}
}
} // namespace MyImplot
namespace ImPlot {
struct BenchmarkItem {
BenchmarkItem() {
float y = (float)RandomRange(0,1);
Data = new float[1000];
for (int i = 0; i < 1000; ++i) {
Data[i] = y + (float)RandomRange(-0.01f,0.01f);
}
Col = ImVec4((float)RandomRange(0,1),(float)RandomRange(0,1),(float)RandomRange(0,1),1);
}
~BenchmarkItem() { delete[] Data; }
float* Data;
ImVec4 Col;
};
void ShowBenchmarkTool() {
static const int max_lines = 500;
static BenchmarkItem items[max_lines];
static bool running = false;
static int frames = 60;
static int L = 0;
static int F = 0;
static double t1, t2;
static ImVector<ImVector<ImPlotPoint>> records;
if (running) {
F++;
if (F == frames) {
t2 = ImGui::GetTime();
records.back().push_back(ImPlotPoint(L, frames / (t2 - t1)));
L += 5;
F = 0;
t1 = ImGui::GetTime();
}
if (L > max_lines) {
running = false;
L = max_lines;
}
}
ImGui::Text("ImDrawIdx: %d-bit", (int)(sizeof(ImDrawIdx) * 8));
ImGui::Text("ImGuiBackendFlags_RendererHasVtxOffset: %s", (ImGui::GetIO().BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset) ? "True" : "False");
ImGui::Text("%.2f FPS", ImGui::GetIO().Framerate);
ImGui::Separator();
bool was_running = running;
if (was_running) {
ImGui::PushItemFlag(ImGuiItemFlags_Disabled, true);
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * 0.25f);
}
if (ImGui::Button("Benchmark")) {
running = true;
L = F = 0;
records.push_back(ImVector<ImPlotPoint>());
records.back().reserve(max_lines + 1);
t1 = ImGui::GetTime();
}
ImGui::SameLine();
ImGui::Checkbox("Anti-Aliased Lines", &ImPlot::GetStyle().AntiAliasedLines);
if (was_running) { ImGui::PopItemFlag(); ImGui::PopStyleVar(); }
ImGui::ProgressBar((float)L / (float)(max_lines - 1));
ImPlot::SetNextPlotLimits(0,1000,0,1,ImGuiCond_Always);
if (ImPlot::BeginPlot("##Bench",NULL,NULL,ImVec2(-1,0),ImPlotFlags_NoChild,0,0,0,0)) {
if (running) {
for (int i = 0; i < L; ++i) {
ImGui::PushID(i);
ImPlot::SetNextLineStyle(items[i].Col);
ImPlot::PlotLine("##item", items[i].Data, 1000);
ImGui::PopID();
}
}
ImPlot::EndPlot();
}
ImPlot::SetNextPlotLimits(0,500,0,500,ImGuiCond_Always);
static char buffer[8];
if (ImPlot::BeginPlot("##Stats", "Lines (1,000 pts each)", "Framerate (Hz)", ImVec2(-1,0), ImPlotFlags_NoChild)) {
for (int run = 0; run < records.size(); ++run) {
sprintf(buffer, "Run %d", run + 1);
ImPlot::PlotLine(buffer, records[run].Data, records[run].Size);
}
ImPlot::EndPlot();
}
}
}
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