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implot_demo.cpp
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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 v0.9 WIP
#include "implot.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <iostream>
#ifdef _MSC_VER
#define sprintf sprintf_s
#endif
#ifndef PI
#define PI 3.14159265358979323846
#endif
// Encapsulates examples for customizing ImPlot.
namespace MyImPlot {
// Example for Custom Data and Getters section.
struct Vector2f {
Vector2f(float _x, float _y) { x = _x; y = _y; }
float x, y;
};
// Example for Custom Data and 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.
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.
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));
// Example for Custom Styles section.
void StyleSeaborn();
} // namespace MyImPlot
namespace ImPlot {
void ShowBenchmarkTool();
template <typename T>
inline T RandomRange(T min, T max) {
T scale = rand() / (T) RAND_MAX;
return min + scale * ( max - min );
}
// utility structure for realtime plot
struct ScrollingBuffer {
int MaxSize;
int Offset;
ImVector<ImVec2> Data;
ScrollingBuffer() {
MaxSize = 2000;
Offset = 0;
Data.reserve(MaxSize);
}
void AddPoint(float x, float y) {
if (Data.size() < MaxSize)
Data.push_back(ImVec2(x,y));
else {
Data[Offset] = ImVec2(x,y);
Offset = (Offset + 1) % MaxSize;
}
}
void Erase() {
if (Data.size() > 0) {
Data.shrink(0);
Offset = 0;
}
}
};
// utility structure for realtime plot
struct RollingBuffer {
float Span;
ImVector<ImVec2> Data;
RollingBuffer() {
Span = 10.0f;
Data.reserve(2000);
}
void AddPoint(float x, float y) {
float xmod = fmodf(x, Span);
if (!Data.empty() && xmod < Data.back().x)
Data.shrink(0);
Data.push_back(ImVec2(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) {
double DEMO_TIME = ImGui::GetTime();
static bool show_imgui_metrics = false;
static bool show_implot_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_implot_metrics) {
ImPlot::ShowMetricsWindow(&show_implot_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("Metrics (ImPlot)", NULL, &show_implot_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");
ImPlot::ShowColormapSelector("ImPlot Colormap");
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 float xs1[1001], ys1[1001];
for (int i = 0; i < 1001; ++i) {
xs1[i] = i * 0.001f;
ys1[i] = 0.5f + 0.5f * sinf(50 * (xs1[i] + (float)DEMO_TIME / 10));
}
static double 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 double xs1[101], ys1[101], ys2[101], ys3[101];
srand(0);
for (int i = 0; i < 101; ++i) {
xs1[i] = (float)i;
ys1[i] = RandomRange(400.0,450.0);
ys2[i] = RandomRange(275.0,350.0);
ys3[i] = RandomRange(150.0,225.0);
}
static bool show_lines = true;
static bool show_fills = true;
static float fill_ref = 0;
static int shade_mode = 0;
ImGui::Checkbox("Lines",&show_lines); ImGui::SameLine();
ImGui::Checkbox("Fills",&show_fills);
if (show_fills) {
ImGui::SameLine();
if (ImGui::RadioButton("To -INF",shade_mode == 0))
shade_mode = 0;
ImGui::SameLine();
if (ImGui::RadioButton("To +INF",shade_mode == 1))
shade_mode = 1;
ImGui::SameLine();
if (ImGui::RadioButton("To Ref",shade_mode == 2))
shade_mode = 2;
if (shade_mode == 2) {
ImGui::SameLine();
ImGui::SetNextItemWidth(100);
ImGui::DragFloat("##Ref",&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, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : fill_ref);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY : 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 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 * sinf(25 * xs[i]) * sinf(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 * sinf(25 * xs[i]);
ys4[i] = 0.75f + 0.1f * cosf(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 float xs1[100], ys1[100];
for (int i = 0; i < 100; ++i) {
xs1[i] = i * 0.01f;
ys1[i] = xs1[i] + 0.1f * ((float)rand() / (float)RAND_MAX);
}
static float xs2[50], ys2[50];
for (int i = 0; i < 50; i++) {
xs2[i] = 0.25f + 0.2f * ((float)rand() / (float)RAND_MAX);
ys2[i] = 0.75f + 0.2f * ((float)rand() / (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("Stairstep Plots")) {
static float ys1[101], ys2[101];
for (int i = 0; i < 101; ++i) {
ys1[i] = 0.5f + 0.4f * sinf(50 * i * 0.01f);
ys2[i] = 0.5f + 0.2f * sinf(25 * i * 0.01f);
}
if (ImPlot::BeginPlot("Stairstep Plot", "x", "f(x)")) {
ImPlot::PlotStairs("Signal 1", ys1, 101, 0.01f);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square, 2.0f);
ImPlot::PlotStairs("Signal 2", ys2, 101, 0.01f);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Bar Plots")) {
static bool horz = false;
static ImS8 midtm[10] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90};
static ImS16 final[10] = {80, 62, 56, 99, 55, 78, 88, 78, 90, 100};
static ImS32 grade[10] = {80, 69, 52, 92, 72, 78, 75, 76, 89, 95};
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};
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::SetLegendLocation(ImPlotLocation_West, ImPlotOrientation_Vertical);
ImPlot::PlotBarsH("Midterm Exam", midtm, 10, 0.2, -0.2);
ImPlot::PlotBarsH("Final Exam", final, 10, 0.2, 0);
ImPlot::PlotBarsH("Course Grade", grade, 10, 0.2, 0.2);
}
else {
ImPlot::SetLegendLocation(ImPlotLocation_South, ImPlotOrientation_Horizontal);
ImPlot::PlotBars("Midterm Exam", midtm, 10, 0.2, -0.2);
ImPlot::PlotBars("Final Exam", final, 10, 0.2, 0);
ImPlot::PlotBars("Course Grade", grade, 10, 0.2, 0.2);
}
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Error Bars")) {
static float xs[5] = {1,2,3,4,5};
static float bar[5] = {1,2,5,3,4};
static float lin1[5] = {8,8,9,7,8};
static float lin2[5] = {6,7,6,9,6};
static float err1[5] = {0.2f, 0.4f, 0.2f, 0.6f, 0.4f};
static float err2[5] = {0.4f, 0.2f, 0.4f, 0.8f, 0.6f};
static float err3[5] = {0.09f, 0.14f, 0.09f, 0.12f, 0.16f};
static 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 double xs[51], ys1[51], ys2[51];
for (int i = 0; i < 51; ++i) {
xs[i] = i * 0.02;
ys1[i] = 1.0 + 0.5 * sin(25*xs[i])*cos(2*xs[i]);
ys2[i] = 0.5 + 0.25 * 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("Infinite Lines")) {
static double vals[] = {0.25, 0.5, 0.75};
if (ImPlot::BeginPlot("##Infinite")) {
ImPlot::PlotVLines("VLines",vals,3);
ImPlot::PlotHLines("HLines",vals,3);
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_Equal | ImPlotFlags_NoMousePos, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotPieChart(labels1, data1, 4, 0.5, 0.5, 0.4, normalize, "%.2f");
ImPlot::EndPlot();
}
ImGui::SameLine();
static const char* labels2[] = {"A","B","C","D","E"};
static int 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_Equal | ImPlotFlags_NoMousePos, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations)) {
ImPlot::PlotPieChart(labels2, data2, 5, 0.5, 0.5, 0.4, true, "%.0f", 180);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Heatmaps")) {
static 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 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 double values2[100*100];
srand((unsigned int)(DEMO_TIME*1000000));
for (int i = 0; i < 100*100; ++i)
values2[i] = RandomRange(0.0,1.0);
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("Images")) {
ImGui::BulletText("Below we are displaying the font texture, which is the only texture we have\naccess to in this demo.");
ImGui::BulletText("Use the 'ImTextureID' type as storage to pass pointers or identifiers to your\nown texture data.");
ImGui::BulletText("See ImGui Wiki page 'Image Loading and Displaying Examples'.");
static ImVec2 bmin(0,0);
static ImVec2 bmax(1,1);
static ImVec2 uv0(0,0);
static ImVec2 uv1(1,1);
static ImVec4 tint(1,1,1,1);
ImGui::SliderFloat2("Min", &bmin.x, -2, 2, "%.1f");
ImGui::SliderFloat2("Max", &bmax.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV0", &uv0.x, -2, 2, "%.1f");
ImGui::SliderFloat2("UV1", &uv1.x, -2, 2, "%.1f");
ImGui::ColorEdit4("Tint",&tint.x);
if (ImPlot::BeginPlot("##image")) {
ImPlot::PlotImage("my image",ImGui::GetIO().Fonts->TexID, bmin, bmax, uv0, uv1, tint);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
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 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(float));
ImPlot::PlotLine("Data 2", &sdata2.Data[0].x, &sdata2.Data[0].y, sdata2.Data.size(), sdata2.Offset, 2*sizeof(float));
ImPlot::EndPlot();
}
ImPlot::SetNextPlotLimitsX(0, history, ImGuiCond_Always);
if (ImPlot::BeginPlot("##Rolling", NULL, NULL, ImVec2(-1,150), 0, rt_axis, rt_axis)) {
ImPlot::PlotLine("Data 1", &rdata1.Data[0].x, &rdata1.Data[0].y, rdata1.Data.size(), 0, 2 * sizeof(float));
ImPlot::PlotLine("Data 2", &rdata2.Data[0].x, &rdata2.Data[0].y, rdata2.Data.size(), 0, 2 * sizeof(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)) {
ImS8 xs[2] = {1,4};
ImS8 ys[2] = {10,11};
// filled markers
for (int m = 0; 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 = 0; 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 double 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(10.0, 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("Local Time",&ImPlot::GetStyle().UseLocalTime);
ImGui::SameLine();
ImGui::Checkbox("ISO 8601",&ImPlot::GetStyle().UseISO8601);
ImGui::SameLine();
ImGui::Checkbox("24 Hour Clock",&ImPlot::GetStyle().Use24HourClock);
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", NULL, NULL, 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::Annotate(t_now,y_now,ImVec2(10,10),ImPlot::GetLastItemColor(),"Now");
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Multiple Y-Axes")) {
static 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] = sinf(xs[i]) * 3 + 1;
ys2[i] = cosf(xs[i]) * 0.2f + 0.5f;
ys3[i] = sinf(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, "Y-Axis 1", ImVec2(-1,0),
(y2_axis ? ImPlotFlags_YAxis2 : 0) |
(y3_axis ? ImPlotFlags_YAxis3 : 0),
ImPlotAxisFlags_None, ImPlotAxisFlags_None, ImPlotAxisFlags_NoGridLines, ImPlotAxisFlags_NoGridLines,
"Y-Axis 2", "Y-Axis 3")) {
ImPlot::PlotLine("f(x) = x", xs, xs, 1001);
ImPlot::PlotLine("f(x) = sin(x)*3+1", xs, ys1, 1001);
if (y2_axis) {
ImPlot::SetPlotYAxis(ImPlotYAxis_2);
ImPlot::PlotLine("f(x) = cos(x)*.2+.5 (Y2)", xs, ys2, 1001);
}
if (y3_axis) {
ImPlot::SetPlotYAxis(ImPlotYAxis_3);
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;
int 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("Equal Axes")) {
static double xs[1000], ys[1000];
for (int i = 0; i < 1000; ++i) {
double angle = i * 2 * PI / 999.0;
xs[i] = cos(angle); ys[i] = sin(angle);
}
ImPlot::SetNextPlotLimits(-1,1,-1,1);
if (ImPlot::BeginPlot("",0,0,ImVec2(-1,0),ImPlotFlags_Equal)) {
ImPlot::PlotLine("Circle",xs,ys,1000);
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Querying")) {
static ImVector<ImPlotPoint> 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(pt);
}
if (data.size() > 0)
ImPlot::PlotScatter("Points", &data[0].x, &data[0].y, data.size(), 0, 2 * sizeof(double));
if (ImPlot::IsPlotQueried() && data.size() > 0) {
ImPlotLimits range2 = ImPlot::GetPlotQuery();
int cnt = 0;
ImPlotPoint 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 float x_data[512];
static float y_data1[512];
static float y_data2[512];
static float y_data3[512];
static float sampling_freq = 44100;
static float freq = 500;
for (size_t i = 0; i < 512; ++i) {
const float t = i / sampling_freq;
x_data[i] = t;
const float arg = 2 * 3.14f * freq * t;
y_data1[i] = sinf(arg);
y_data2[i] = y_data1[i] * -0.6f + sinf(2 * arg) * 0.4f;
y_data3[i] = y_data2[i] * -0.6f + sinf(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("Legend")) {
static ImPlotLocation loc = ImPlotLocation_East;
static bool h = false; static bool o = true;
ImGui::CheckboxFlags("North", (unsigned int*)&loc, ImPlotLocation_North); ImGui::SameLine();
ImGui::CheckboxFlags("South", (unsigned int*)&loc, ImPlotLocation_South); ImGui::SameLine();
ImGui::CheckboxFlags("West", (unsigned int*)&loc, ImPlotLocation_West); ImGui::SameLine();
ImGui::CheckboxFlags("East", (unsigned int*)&loc, ImPlotLocation_East); ImGui::SameLine();
ImGui::Checkbox("Horizontal", &h); ImGui::SameLine();
ImGui::Checkbox("Outside", &o);
ImGui::SliderFloat2("LegendPadding", (float*)&GetStyle().LegendPadding, 0.0f, 20.0f, "%.0f");
ImGui::SliderFloat2("LegendInnerPadding", (float*)&GetStyle().LegendInnerPadding, 0.0f, 10.0f, "%.0f");
ImGui::SliderFloat2("LegendSpacing", (float*)&GetStyle().LegendSpacing, 0.0f, 5.0f, "%.0f");
if (ImPlot::BeginPlot("##Legend","x","y",ImVec2(-1,0))) {
ImPlot::SetLegendLocation(loc, h ? ImPlotOrientation_Horizontal : ImPlotOrientation_Vertical, o);
static MyImPlot::WaveData data1(0.001, 0.2, 2, 0.75);
static MyImPlot::WaveData data2(0.001, 0.2, 4, 0.25);
static MyImPlot::WaveData data3(0.001, 0.2, 6, 0.5);
ImPlot::PlotLineG("Item 1", MyImPlot::SineWave, &data1, 1000); // "Item 1" added to legend
ImPlot::PlotLineG("Item 2##IDText", MyImPlot::SawWave, &data2, 1000); // "Item 2" added to legend, text after ## used for ID only
ImPlot::PlotLineG("##NotListed", MyImPlot::SawWave, &data3, 1000); // plotted, but not added to legend
ImPlot::PlotLineG("Item 3", MyImPlot::SineWave, &data1, 1000); // "Item 3" added to legend
ImPlot::PlotLineG("Item 3", MyImPlot::SawWave, &data2, 1000); // combined with previous "Item 3"
ImPlot::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Drag Lines and Points")) {
ImGui::BulletText("Click and drag the horizontal and vertical lines.");
static double x1 = 0.2;
static double x2 = 0.8;
static double y1 = 0.25;
static double y2 = 0.75;
static double f = 0.1;
static bool show_labels = true;
ImGui::Checkbox("Show Labels##1",&show_labels);
if (ImPlot::BeginPlot("##guides",0,0,ImVec2(-1,0),ImPlotFlags_YAxis2)) {
ImPlot::DragLineX("x1",&x1,show_labels);
ImPlot::DragLineX("x2",&x2,show_labels);
ImPlot::DragLineY("y1",&y1,show_labels);
ImPlot::DragLineY("y2",&y2,show_labels);
double xs[1000], ys[1000];
for (int i = 0; i < 1000; ++i) {
xs[i] = (x2+x1)/2+abs(x2-x1)*(i/1000.0f - 0.5f);
ys[i] = (y1+y2)/2+abs(y2-y1)/2*sin(f*i/10);
}
ImPlot::PlotLine("Interactive Data", xs, ys, 1000);
ImPlot::SetPlotYAxis(ImPlotYAxis_2);
ImPlot::DragLineY("f",&f,show_labels,ImVec4(1,0.5f,1,1));
ImPlot::EndPlot();
}
ImGui::BulletText("Click and drag any point.");
ImGui::Checkbox("Show Labels##2",&show_labels);
ImPlotAxisFlags flags = ImPlotAxisFlags_NoTickLabels | ImPlotAxisFlags_NoTickMarks;
if (ImPlot::BeginPlot("##Bezier",0,0,ImVec2(-1,0),ImPlotFlags_CanvasOnly,flags,flags)) {
static ImPlotPoint P[] = {ImPlotPoint(.05f,.05f), ImPlotPoint(0.2,0.4), ImPlotPoint(0.8,0.6), ImPlotPoint(.95f,.95f)};
static ImPlotPoint B[100];
for (int i = 0; i < 100; ++i) {
double t = i / 99.0;
double u = 1 - t;
double w1 = u*u*u;
double w2 = 3*u*u*t;
double w3 = 3*u*t*t;
double w4 = t*t*t;
B[i] = ImPlotPoint(w1*P[0].x + w2*P[1].x + w3*P[2].x + w4*P[3].x, w1*P[0].y + w2*P[1].y + w3*P[2].y + w4*P[3].y);
}
ImPlot::SetNextLineStyle(ImVec4(0,0.9f,0,1), 2);
ImPlot::PlotLine("##bez",&B[0].x, &B[0].y, 100, 0, sizeof(ImPlotPoint));
ImPlot::SetNextLineStyle(ImVec4(1,0.5f,1,1));
ImPlot::PlotLine("##h1",&P[0].x, &P[0].y, 2, 0, sizeof(ImPlotPoint));
ImPlot::SetNextLineStyle(ImVec4(0,0.5f,1,1));
ImPlot::PlotLine("##h2",&P[2].x, &P[2].y, 2, 0, sizeof(ImPlotPoint));
ImPlot::DragPoint("P0",&P[0].x,&P[0].y, show_labels, ImVec4(0,0.9f,0,1));
ImPlot::DragPoint("P1",&P[1].x,&P[1].y, show_labels, ImVec4(1,0.5f,1,1));
ImPlot::DragPoint("P2",&P[2].x,&P[2].y, show_labels, ImVec4(0,0.5f,1,1));
ImPlot::DragPoint("P3",&P[3].x,&P[3].y, show_labels, ImVec4(0,0.9f,0,1));
ImPlot::EndPlot();
}
}
if (ImGui::CollapsingHeader("Annotations")) {
static bool clamp = false;
ImGui::Checkbox("Clamp",&clamp);
ImPlot::SetNextPlotLimits(0,2,0,1);
if (ImPlot::BeginPlot("##Annotations")) {
static float p[] = {0.25f, 0.25f, 0.75f, 0.75f, 0.25f};
ImPlot::PlotScatter("##Points",&p[0],&p[1],4);
ImVec4 col = GetLastItemColor();
clamp ? ImPlot::AnnotateClamped(0.25,0.25,ImVec2(-15,15),col,"BL") : ImPlot::Annotate(0.25,0.25,ImVec2(-15,15),col,"BL");
clamp ? ImPlot::AnnotateClamped(0.75,0.25,ImVec2(15,15),col,"BR") : ImPlot::Annotate(0.75,0.25,ImVec2(15,15),col,"BR");
clamp ? ImPlot::AnnotateClamped(0.75,0.75,ImVec2(15,-15),col,"TR") : ImPlot::Annotate(0.75,0.75,ImVec2(15,-15),col,"TR");
clamp ? ImPlot::AnnotateClamped(0.25,0.75,ImVec2(-15,-15),col,"TL") : ImPlot::Annotate(0.25,0.75,ImVec2(-15,-15),col,"TL");
clamp ? ImPlot::AnnotateClamped(0.5,0.5,ImVec2(0,0),col,"Center") : ImPlot::Annotate(0.5,0.5,ImVec2(0,0),col,"Center");
float bx[] = {1.2f,1.5f,1.8f};
float by[] = {0.25f, 0.5f, 0.75f};
ImPlot::PlotBars("##Bars",bx,by,3,0.2);
for (int i = 0; i < 3; ++i)
ImPlot::Annotate(bx[i],by[i],ImVec2(0,-5),"B[%d]=%.2f",i,by[i]);
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);