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implot_demo.cpp
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// MIT License
// Copyright (c) 2022 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 v0.14
// We define this so that the demo does not accidentally use deprecated API
#ifndef IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#define IMPLOT_DISABLE_OBSOLETE_FUNCTIONS
#endif
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "implot.h"
#ifdef _MSC_VER
#define sprintf sprintf_s
#endif
#ifndef PI
#define PI 3.14159265358979323846
#endif
#define CHECKBOX_FLAG(flags, flag) ImGui::CheckboxFlags(#flag, (unsigned int*)&flags, flag)
// 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(int idx, void* wave_data);
ImPlotPoint SawWave(int idx, void* wave_data);
ImPlotPoint Spiral(int idx, void* wave_data);
// 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
{
template <typename T>
inline T RandomRange(T min, T max)
{
T scale = rand() / (T)RAND_MAX;
return min + scale * (max - min);
}
ImVec4 RandomColor()
{
ImVec4 col;
col.x = RandomRange(0.0f, 1.0f);
col.y = RandomRange(0.0f, 1.0f);
col.z = RandomRange(0.0f, 1.0f);
col.w = 1.0f;
return col;
}
double RandomGauss()
{
static double V1, V2, S;
static int phase = 0;
double X;
if (phase == 0)
{
do
{
double U1 = (double)rand() / RAND_MAX;
double U2 = (double)rand() / RAND_MAX;
V1 = 2 * U1 - 1;
V2 = 2 * U2 - 1;
S = V1 * V1 + V2 * V2;
} while (S >= 1 || S == 0);
X = V1 * sqrt(-2 * log(S) / S);
}
else
X = V2 * sqrt(-2 * log(S) / S);
phase = 1 - phase;
return X;
}
template <int N>
struct NormalDistribution
{
NormalDistribution(double mean, double sd)
{
for (int i = 0; i < N; ++i)
Data[i] = RandomGauss() * sd + mean;
}
double Data[N];
};
// utility structure for realtime plot
struct ScrollingBuffer
{
int MaxSize;
int Offset;
ImVector<ImVec2> Data;
ScrollingBuffer(int max_size = 2000)
{
MaxSize = max_size;
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;
};
//-----------------------------------------------------------------------------
// [SECTION] Demo Functions
//-----------------------------------------------------------------------------
void Demo_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("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();
ImGui::Separator();
ImGui::Text("USER GUIDE:");
ShowUserGuide();
}
//-----------------------------------------------------------------------------
void ButtonSelector(const char* label, ImGuiMouseButton* b)
{
ImGui::PushID(label);
if (ImGui::RadioButton("LMB", *b == ImGuiMouseButton_Left))
*b = ImGuiMouseButton_Left;
ImGui::SameLine();
if (ImGui::RadioButton("RMB", *b == ImGuiMouseButton_Right))
*b = ImGuiMouseButton_Right;
ImGui::SameLine();
if (ImGui::RadioButton("MMB", *b == ImGuiMouseButton_Middle))
*b = ImGuiMouseButton_Middle;
ImGui::PopID();
}
void ModSelector(const char* label, int* k)
{
ImGui::PushID(label);
ImGui::CheckboxFlags("Ctrl", (unsigned int*)k, ImGuiMod_Ctrl);
ImGui::SameLine();
ImGui::CheckboxFlags("Shift", (unsigned int*)k, ImGuiMod_Shift);
ImGui::SameLine();
ImGui::CheckboxFlags("Alt", (unsigned int*)k, ImGuiMod_Alt);
ImGui::SameLine();
ImGui::CheckboxFlags("Super", (unsigned int*)k, ImGuiMod_Super);
ImGui::PopID();
}
void InputMapping(const char* label, ImGuiMouseButton* b, int* k)
{
ImGui::LabelText("##", "%s", label);
if (b != NULL)
{
ImGui::SameLine(100);
ButtonSelector(label, b);
}
if (k != NULL)
{
ImGui::SameLine(300);
ModSelector(label, k);
}
}
void ShowInputMapping()
{
ImPlotInputMap& map = ImPlot::GetInputMap();
InputMapping("Pan", &map.Pan, &map.PanMod);
InputMapping("Fit", &map.Fit, NULL);
InputMapping("Select", &map.Select, &map.SelectMod);
InputMapping("SelectHorzMod", NULL, &map.SelectHorzMod);
InputMapping("SelectVertMod", NULL, &map.SelectVertMod);
InputMapping("SelectCancel", &map.SelectCancel, NULL);
InputMapping("Menu", &map.Menu, NULL);
InputMapping("OverrideMod", NULL, &map.OverrideMod);
InputMapping("ZoomMod", NULL, &map.ZoomMod);
ImGui::SliderFloat("ZoomRate", &map.ZoomRate, -1, 1);
}
void Demo_Config()
{
ImGui::ShowFontSelector("Font");
ImGui::ShowStyleSelector("ImGui Style");
ImPlot::ShowStyleSelector("ImPlot Style");
ImPlot::ShowColormapSelector("ImPlot Colormap");
ImPlot::ShowInputMapSelector("Input Map");
ImGui::Separator();
ImGui::Checkbox("Use Local Time", &ImPlot::GetStyle().UseLocalTime);
ImGui::Checkbox("Use ISO 8601", &ImPlot::GetStyle().UseISO8601);
ImGui::Checkbox("Use 24 Hour Clock", &ImPlot::GetStyle().Use24HourClock);
ImGui::Separator();
if (ImPlot::BeginPlot("Preview"))
{
static double now = (double)time(0);
ImPlot::SetupAxisScale(ImAxis_X1, ImPlotScale_Time);
ImPlot::SetupAxisLimits(ImAxis_X1, now, now + 24 * 3600);
for (int i = 0; i < 10; ++i)
{
double x[2] = {now, now + 24 * 3600};
double y[2] = {0, i / 9.0};
ImGui::PushID(i);
ImPlot::PlotLine("##Line", x, y, 2);
ImGui::PopID();
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_LinePlots()
{
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)ImGui::GetTime() / 10));
}
static double xs2[20], ys2[20];
for (int i = 0; i < 20; ++i)
{
xs2[i] = i * 1 / 19.0f;
ys2[i] = xs2[i] * xs2[i];
}
if (ImPlot::BeginPlot("Line Plots"))
{
ImPlot::SetupAxes("x", "y");
ImPlot::PlotLine("f(x)", xs1, ys1, 1001);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotLine("g(x)", xs2, ys2, 20, ImPlotLineFlags_Segments);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_FilledLinePlots()
{
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;
static ImPlotShadedFlags flags = 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);
}
}
if (ImPlot::BeginPlot("Stock Prices"))
{
ImPlot::SetupAxes("Days", "Price");
ImPlot::SetupAxesLimits(0, 100, 0, 500);
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,
flags);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY
: fill_ref,
flags);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, shade_mode == 0 ? -INFINITY : shade_mode == 1 ? INFINITY
: fill_ref,
flags);
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();
}
}
//-----------------------------------------------------------------------------
void Demo_ShadedPlots()
{
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"))
{
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();
}
}
//-----------------------------------------------------------------------------
void Demo_ScatterPlots()
{
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"))
{
ImPlot::PlotScatter("Data 1", xs1, ys1, 100);
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Square, 6, ImPlot::GetColormapColor(1), IMPLOT_AUTO, ImPlot::GetColormapColor(1));
ImPlot::PlotScatter("Data 2", xs2, ys2, 50);
ImPlot::PopStyleVar();
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StairstepPlots()
{
static float ys1[21], ys2[21];
for (int i = 0; i < 21; ++i)
{
ys1[i] = 0.75f + 0.2f * sinf(10 * i * 0.05f);
ys2[i] = 0.25f + 0.2f * sinf(10 * i * 0.05f);
}
static ImPlotStairsFlags flags = 0;
CHECKBOX_FLAG(flags, ImPlotStairsFlags_Shaded);
if (ImPlot::BeginPlot("Stairstep Plot"))
{
ImPlot::SetupAxes("x", "f(x)");
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(0.5f, 0.5f, 0.5f, 1.0f));
ImPlot::PlotLine("##1", ys1, 21, 0.05f);
ImPlot::PlotLine("##2", ys2, 21, 0.05f);
ImPlot::PopStyleColor();
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Post Step (default)", ys1, 21, 0.05f, 0, flags);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.25f);
ImPlot::PlotStairs("Pre Step", ys2, 21, 0.05f, 0, flags | ImPlotStairsFlags_PreStep);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarPlots()
{
static ImS8 data[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
if (ImPlot::BeginPlot("Bar Plot"))
{
ImPlot::PlotBars("Vertical", data, 10, 0.7, 1);
ImPlot::PlotBars("Horizontal", data, 10, 0.4, 1, ImPlotBarsFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarGroups()
{
static ImS8 data[30] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90, // midterm
80, 62, 56, 99, 55, 78, 88, 78, 90, 100, // final
80, 69, 52, 92, 72, 78, 75, 76, 89, 95}; // course
static const char* ilabels[] = {"Midterm Exam", "Final Exam", "Course Grade"};
static const char* glabels[] = {"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 int items = 3;
static int groups = 10;
static float size = 0.67f;
static ImPlotBarGroupsFlags flags = 0;
static bool horz = false;
ImGui::CheckboxFlags("Stacked", (unsigned int*)&flags, ImPlotBarGroupsFlags_Stacked);
ImGui::SameLine();
ImGui::Checkbox("Horizontal", &horz);
ImGui::SliderInt("Items", &items, 1, 3);
ImGui::SliderFloat("Size", &size, 0, 1);
if (ImPlot::BeginPlot("Bar Group"))
{
ImPlot::SetupLegend(ImPlotLocation_East, ImPlotLegendFlags_Outside);
if (horz)
{
ImPlot::SetupAxes("Score", "Student", ImPlotAxisFlags_AutoFit, ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_Y1, positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels, data, items, groups, size, 0, flags | ImPlotBarGroupsFlags_Horizontal);
}
else
{
ImPlot::SetupAxes("Student", "Score", ImPlotAxisFlags_AutoFit, ImPlotAxisFlags_AutoFit);
ImPlot::SetupAxisTicks(ImAxis_X1, positions, groups, glabels);
ImPlot::PlotBarGroups(ilabels, data, items, groups, size, 0, flags);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_BarStacks()
{
static ImPlotColormap Liars = -1;
if (Liars == -1)
{
static const ImU32 Liars_Data[6] = {4282515870, 4282609140, 4287357182, 4294630301, 4294945280, 4294921472};
Liars = ImPlot::AddColormap("Liars", Liars_Data, 6);
}
static bool diverging = true;
ImGui::Checkbox("Diverging", &diverging);
static const char* politicians[] = {"Trump", "Bachman", "Cruz", "Gingrich", "Palin", "Santorum", "Walker", "Perry", "Ryan", "McCain", "Rubio", "Romney", "Rand Paul", "Christie", "Biden", "Kasich", "Sanders", "J Bush", "H Clinton", "Obama"};
static int data_reg[] = {18, 26, 7, 14, 10, 8, 6, 11, 4, 4, 3, 8, 6, 8, 6, 5, 0, 3, 1, 2, // Pants on Fire
43, 36, 30, 21, 30, 27, 25, 17, 11, 22, 15, 16, 16, 17, 12, 12, 14, 6, 13, 12, // False
16, 13, 28, 22, 15, 21, 15, 18, 30, 17, 24, 18, 13, 10, 14, 15, 17, 22, 14, 12, // Mostly False
17, 10, 13, 25, 12, 22, 19, 26, 23, 17, 22, 27, 20, 26, 29, 17, 18, 22, 21, 27, // Half True
5, 7, 16, 10, 10, 12, 23, 13, 17, 20, 22, 16, 23, 19, 20, 26, 36, 29, 27, 26, // Mostly True
1, 8, 6, 8, 23, 10, 12, 15, 15, 20, 14, 15, 22, 20, 19, 25, 15, 18, 24, 21}; // True
static const char* labels_reg[] = {"Pants on Fire", "False", "Mostly False", "Half True", "Mostly True", "True"};
static int data_div[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Pants on Fire (dummy, to order legend logically)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // False (dummy, to order legend logically)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Mostly False (dummy, to order legend logically)
-16, -13, -28, -22, -15, -21, -15, -18, -30, -17, -24, -18, -13, -10, -14, -15, -17, -22, -14, -12, // Mostly False
-43, -36, -30, -21, -30, -27, -25, -17, -11, -22, -15, -16, -16, -17, -12, -12, -14, -6, -13, -12, // False
-18, -26, -7, -14, -10, -8, -6, -11, -4, -4, -3, -8, -6, -8, -6, -5, 0, -3, -1, -2, // Pants on Fire
17, 10, 13, 25, 12, 22, 19, 26, 23, 17, 22, 27, 20, 26, 29, 17, 18, 22, 21, 27, // Half True
5, 7, 16, 10, 10, 12, 23, 13, 17, 20, 22, 16, 23, 19, 20, 26, 36, 29, 27, 26, // Mostly True
1, 8, 6, 8, 23, 10, 12, 15, 15, 20, 14, 15, 22, 20, 19, 25, 15, 18, 24, 21}; // True
static const char* labels_div[] = {"Pants on Fire", "False", "Mostly False", "Mostly False", "False", "Pants on Fire", "Half True", "Mostly True", "True"};
ImPlot::PushColormap(Liars);
if (ImPlot::BeginPlot("PolitiFact: Who Lies More?", ImVec2(-1, 400), ImPlotFlags_NoMouseText))
{
ImPlot::SetupLegend(ImPlotLocation_South, ImPlotLegendFlags_Outside | ImPlotLegendFlags_Horizontal);
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_AutoFit | ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_AutoFit | ImPlotAxisFlags_Invert);
ImPlot::SetupAxisTicks(ImAxis_Y1, 0, 19, 20, politicians, false);
if (diverging)
ImPlot::PlotBarGroups(labels_div, data_div, 9, 20, 0.75, 0, ImPlotBarGroupsFlags_Stacked | ImPlotBarGroupsFlags_Horizontal);
else
ImPlot::PlotBarGroups(labels_reg, data_reg, 6, 20, 0.75, 0, ImPlotBarGroupsFlags_Stacked | ImPlotBarGroupsFlags_Horizontal);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_ErrorBars()
{
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};
if (ImPlot::BeginPlot("##ErrorBars"))
{
ImPlot::SetupAxesLimits(0, 6, 0, 10);
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_Square);
ImPlot::PlotLine("Line", xs, lin1, 5);
ImPlot::PushStyleColor(ImPlotCol_ErrorBar, ImPlot::GetColormapColor(2));
ImPlot::PlotErrorBars("Scatter", xs, lin2, err2, 5);
ImPlot::PlotErrorBars("Scatter", xs, lin2, err3, err4, 5, ImPlotErrorBarsFlags_Horizontal);
ImPlot::PopStyleColor();
ImPlot::PlotScatter("Scatter", xs, lin2, 5);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_StemPlots()
{
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]);
}
if (ImPlot::BeginPlot("Stem Plots"))
{
ImPlot::SetupAxisLimits(ImAxis_X1, 0, 1.0);
ImPlot::SetupAxisLimits(ImAxis_Y1, 0, 1.6);
ImPlot::PlotStems("Stems 1", xs, ys1, 51);
ImPlot::SetNextMarkerStyle(ImPlotMarker_Circle);
ImPlot::PlotStems("Stems 2", xs, ys2, 51);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_InfiniteLines()
{
static double vals[] = {0.25, 0.5, 0.75};
if (ImPlot::BeginPlot("##Infinite"))
{
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoInitialFit, ImPlotAxisFlags_NoInitialFit);
ImPlot::PlotInfLines("Vertical", vals, 3);
ImPlot::PlotInfLines("Horizontal", vals, 3, ImPlotInfLinesFlags_Horizontal);
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_PieCharts()
{
static const char* labels1[] = {"Frogs", "Hogs", "Dogs", "Logs"};
static float data1[] = {0.15f, 0.30f, 0.2f, 0.05f};
static ImPlotPieChartFlags flags = 0;
ImGui::SetNextItemWidth(250);
ImGui::DragFloat4("Values", data1, 0.01f, 0, 1);
if ((data1[0] + data1[1] + data1[2] + data1[3]) < 1)
{
ImGui::SameLine();
CHECKBOX_FLAG(flags, ImPlotPieChartFlags_Normalize);
}
if (ImPlot::BeginPlot("##Pie1", ImVec2(250, 250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText))
{
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels1, data1, 4, 0.5, 0.5, 0.4, "%.2f", 90, flags);
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);
if (ImPlot::BeginPlot("##Pie2", ImVec2(250, 250), ImPlotFlags_Equal | ImPlotFlags_NoMouseText))
{
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(0, 1, 0, 1);
ImPlot::PlotPieChart(labels2, data2, 5, 0.5, 0.5, 0.4, "%.0f", 180, flags);
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_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 (ImPlot::ColormapButton(ImPlot::GetColormapName(map), ImVec2(225, 0), map))
{
map = (map + 1) % ImPlot::GetColormapCount();
// We bust the color cache of our plots so that item colors will
// resample the new colormap in the event that they have already
// been created. See documentation in implot.h.
BustColorCache("##Heatmap1");
BustColorCache("##Heatmap2");
}
ImGui::SameLine();
ImGui::LabelText("##Colormap Index", "%s", "Change Colormap");
ImGui::SetNextItemWidth(225);
ImGui::DragFloatRange2("Min / Max", &scale_min, &scale_max, 0.01f, -20, 20);
static ImPlotHeatmapFlags hm_flags = 0;
ImGui::CheckboxFlags("Column Major", (unsigned int*)&hm_flags, ImPlotHeatmapFlags_ColMajor);
static ImPlotAxisFlags axes_flags = ImPlotAxisFlags_Lock | ImPlotAxisFlags_NoGridLines | ImPlotAxisFlags_NoTickMarks;
ImPlot::PushColormap(map);
if (ImPlot::BeginPlot("##Heatmap1", ImVec2(225, 225), ImPlotFlags_NoLegend | ImPlotFlags_NoMouseText))
{
ImPlot::SetupAxes(NULL, NULL, axes_flags, axes_flags);
ImPlot::SetupAxisTicks(ImAxis_X1, 0 + 1.0 / 14.0, 1 - 1.0 / 14.0, 7, xlabels);
ImPlot::SetupAxisTicks(ImAxis_Y1, 1 - 1.0 / 14.0, 0 + 1.0 / 14.0, 7, ylabels);
ImPlot::PlotHeatmap("heat", values1[0], 7, 7, scale_min, scale_max, "%g", ImPlotPoint(0, 0), ImPlotPoint(1, 1), hm_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale("##HeatScale", scale_min, scale_max, ImVec2(60, 225));
ImGui::SameLine();
const int size = 80;
static double values2[size * size];
srand((unsigned int)(ImGui::GetTime() * 1000000));
for (int i = 0; i < size * size; ++i)
values2[i] = RandomRange(0.0, 1.0);
if (ImPlot::BeginPlot("##Heatmap2", ImVec2(225, 225)))
{
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_NoDecorations, ImPlotAxisFlags_NoDecorations);
ImPlot::SetupAxesLimits(-1, 1, -1, 1);
ImPlot::PlotHeatmap("heat1", values2, size, size, 0, 1, NULL);
ImPlot::PlotHeatmap("heat2", values2, size, size, 0, 1, NULL, ImPlotPoint(-1, -1), ImPlotPoint(0, 0));
ImPlot::EndPlot();
}
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_Histogram()
{
static ImPlotHistogramFlags hist_flags = ImPlotHistogramFlags_Density;
static int bins = 50;
static double mu = 5;
static double sigma = 2;
ImGui::SetNextItemWidth(200);
if (ImGui::RadioButton("Sqrt", bins == ImPlotBin_Sqrt))
{
bins = ImPlotBin_Sqrt;
}
ImGui::SameLine();
if (ImGui::RadioButton("Sturges", bins == ImPlotBin_Sturges))
{
bins = ImPlotBin_Sturges;
}
ImGui::SameLine();
if (ImGui::RadioButton("Rice", bins == ImPlotBin_Rice))
{
bins = ImPlotBin_Rice;
}
ImGui::SameLine();
if (ImGui::RadioButton("Scott", bins == ImPlotBin_Scott))
{
bins = ImPlotBin_Scott;
}
ImGui::SameLine();
if (ImGui::RadioButton("N Bins", bins >= 0))
{
bins = 50;
}
if (bins >= 0)
{
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::SliderInt("##Bins", &bins, 1, 100);
}
ImGui::CheckboxFlags("Horizontal", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Horizontal);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
ImGui::SameLine();
ImGui::CheckboxFlags("Cumulative", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Cumulative);
static bool range = false;
ImGui::Checkbox("Range", &range);
static float rmin = -3;
static float rmax = 13;
if (range)
{
ImGui::SameLine();
ImGui::SetNextItemWidth(200);
ImGui::DragFloat2("##Range", &rmin, 0.1f, -3, 13);
ImGui::SameLine();
ImGui::CheckboxFlags("Exclude Outliers", (unsigned int*)&hist_flags, ImPlotHistogramFlags_NoOutliers);
}
static NormalDistribution<10000> dist(mu, sigma);
static double x[100];
static double y[100];
if (hist_flags & ImPlotHistogramFlags_Density)
{
for (int i = 0; i < 100; ++i)
{
x[i] = -3 + 16 * (double)i / 99.0;
y[i] = exp(-(x[i] - mu) * (x[i] - mu) / (2 * sigma * sigma)) / (sigma * sqrt(2 * 3.141592653589793238));
}
if (hist_flags & ImPlotHistogramFlags_Cumulative)
{
for (int i = 1; i < 100; ++i)
y[i] += y[i - 1];
for (int i = 0; i < 100; ++i)
y[i] /= y[99];
}
}
if (ImPlot::BeginPlot("##Histograms"))
{
ImPlot::SetupAxes(NULL, NULL, ImPlotAxisFlags_AutoFit, ImPlotAxisFlags_AutoFit);
ImPlot::SetNextFillStyle(IMPLOT_AUTO_COL, 0.5f);
ImPlot::PlotHistogram("Empirical", dist.Data, 10000, bins, 1.0, range ? ImPlotRange(rmin, rmax) : ImPlotRange(), hist_flags);
if ((hist_flags & ImPlotHistogramFlags_Density) && !(hist_flags & ImPlotHistogramFlags_NoOutliers))
{
if (hist_flags & ImPlotHistogramFlags_Horizontal)
ImPlot::PlotLine("Theoretical", y, x, 100);
else
ImPlot::PlotLine("Theoretical", x, y, 100);
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Histogram2D()
{
static int count = 50000;
static int xybins[2] = {100, 100};
static ImPlotHistogramFlags hist_flags = 0;
ImGui::SliderInt("Count", &count, 100, 100000);
ImGui::SliderInt2("Bins", xybins, 1, 500);
ImGui::SameLine();
ImGui::CheckboxFlags("Density", (unsigned int*)&hist_flags, ImPlotHistogramFlags_Density);
static NormalDistribution<100000> dist1(1, 2);
static NormalDistribution<100000> dist2(1, 1);
double max_count = 0;
ImPlotAxisFlags flags = ImPlotAxisFlags_AutoFit | ImPlotAxisFlags_Foreground;
ImPlot::PushColormap("Hot");
if (ImPlot::BeginPlot("##Hist2D", ImVec2(ImGui::GetContentRegionAvail().x - 100 - ImGui::GetStyle().ItemSpacing.x, 0)))
{
ImPlot::SetupAxes(NULL, NULL, flags, flags);
ImPlot::SetupAxesLimits(-6, 6, -6, 6);
max_count = ImPlot::PlotHistogram2D("Hist2D", dist1.Data, dist2.Data, count, xybins[0], xybins[1], ImPlotRect(-6, 6, -6, 6), hist_flags);
ImPlot::EndPlot();
}
ImGui::SameLine();
ImPlot::ColormapScale(hist_flags & ImPlotHistogramFlags_Density ? "Density" : "Count", 0, max_count, ImVec2(100, 0));
ImPlot::PopColormap();
}
//-----------------------------------------------------------------------------
void Demo_DigitalPlots()
{
ImGui::BulletText("Digital plots do not respond to Y drag and zoom, so that");
ImGui::Indent();
ImGui::Text("you can drag analog plots over the rising/falling digital edge.");
ImGui::Unindent();
static bool paused = false;
static ScrollingBuffer dataDigital[2];
static ScrollingBuffer dataAnalog[2];
static bool showDigital[2] = {true, false};
static bool showAnalog[2] = {true, false};
char label[32];
ImGui::Checkbox("digital_0", &showDigital[0]);
ImGui::SameLine();
ImGui::Checkbox("digital_1", &showDigital[1]);
ImGui::SameLine();
ImGui::Checkbox("analog_0", &showAnalog[0]);
ImGui::SameLine();
ImGui::Checkbox("analog_1", &showAnalog[1]);
static float t = 0;
if (!paused)
{
t += ImGui::GetIO().DeltaTime;
// digital signal values
if (showDigital[0])
dataDigital[0].AddPoint(t, sinf(2 * t) > 0.45);
if (showDigital[1])
dataDigital[1].AddPoint(t, sinf(2 * t) < 0.45);
// Analog signal values
if (showAnalog[0])
dataAnalog[0].AddPoint(t, sinf(2 * t));
if (showAnalog[1])
dataAnalog[1].AddPoint(t, cosf(2 * t));
}
if (ImPlot::BeginPlot("##Digital"))
{
ImPlot::SetupAxisLimits(ImAxis_X1, t - 10.0, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
ImPlot::SetupAxisLimits(ImAxis_Y1, -1, 1);
for (int i = 0; i < 2; ++i)
{
if (showDigital[i] && dataDigital[i].Data.size() > 0)
{
snprintf(label, sizeof(label), "digital_%d", i);
ImPlot::PlotDigital(label, &dataDigital[i].Data[0].x, &dataDigital[i].Data[0].y, dataDigital[i].Data.size(), 0, dataDigital[i].Offset, 2 * sizeof(float));
}
}
for (int i = 0; i < 2; ++i)
{
if (showAnalog[i])
{
snprintf(label, sizeof(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(), 0, dataAnalog[i].Offset, 2 * sizeof(float));
}
}
ImPlot::EndPlot();
}
}
//-----------------------------------------------------------------------------
void Demo_Images()
{
ImGui::BulletText("Below we are displaying the font texture, which is the only texture we have\naccess to in this demo.");