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implot/implot_demo.cpp

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commit v0.1 source code
2020-04-27 11:27:59 -04:00
// 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 v0.1 WIP
#include <implot.h>
#include <imgui_internal.h>
#include <iostream>
namespace {
struct ScrollingData {
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int MaxSize = 1000;
int Offset = 0;
ImVector<ImVec2> Data;
ScrollingData() { 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.clear();
Offset = 0;
}
}
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};
struct RollingData {
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float Span = 10.0f;
ImVector<ImVec2> Data;
RollingData() { Data.reserve(1000); }
void AddPoint(float x, float y) {
float xmod = ImFmod(x, Span);
if (!Data.empty() && xmod < Data.back().x)
Data.shrink(0);
Data.push_back(ImVec2(xmod, y));
}
};
// Put big data here
struct DemoData {
DemoData() {
}
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};
}
namespace ImGui {
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void ShowImPlotDemoWindow(bool* p_open) {
Update implot_demo.cpp
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static DemoData data;
//ImVec2 main_viewport_pos = ImGui::GetMainViewport()->Pos;
//ImGui::SetNextWindowPos(ImVec2(main_viewport_pos.x + 650, main_viewport_pos.y + 20), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(550, 680), ImGuiCond_FirstUseEver);
ImGui::Begin("ImPlot Demo", p_open);
ImGui::Text("ImPlot says hello. (0.1 WIP)");
if (ImGui::CollapsingHeader("Help")) {
ImGui::Text("USER GUIDE:");
ImGui::BulletText("Left click and drag within the plot area to pan X and Y axes.");
ImGui::BulletText("Left click and drag on an axis to pan an individual axis.");
ImGui::BulletText("Scroll in the plot area to zoom both X any Y axes.");
ImGui::BulletText("Scroll on an axis to zoom an individual axis.");
ImGui::BulletText("Right click and drag to box select data.");
ImGui::Indent();
ImGui::BulletText("Hold Alt to expand box selection horizontally.");
ImGui::BulletText("Hold Shift to expand box selection vertically.");
ImGui::BulletText("Left click while box selecting to cancel the selection.");
ImGui::Unindent();
ImGui::BulletText("Middle click (or Ctrl + right click) and drag to create a query range.");
ImGui::Indent();
ImGui::BulletText("Hold Alt to expand query horizontally.");
ImGui::BulletText("Hold Shift to expand query vertically.");
ImGui::Unindent();
ImGui::BulletText("Double left click to fit all visible data.");
ImGui::BulletText("Double right click to open the plot context menu.");
ImGui::BulletText("Click legend label icons to show/hide plot items.");
}
//-------------------------------------------------------------------------
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 * sin(50 * xs1[i]);
}
static float xs2[11], ys2[11];
for (int i = 0; i < 11; ++i) {
xs2[i] = i * 0.1f;
ys2[i] = xs2[i] * xs2[i];
}
if (ImGui::BeginPlot("Line Plot", "x", "f(x)", {-1,300})) {
ImGui::Plot("sin(50*x)", xs1, ys1, 1001);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle);
ImGui::Plot("x^2", xs2, ys2, 11);
ImGui::PopPlotStyleVar();
ImGui::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 (ImGui::BeginPlot("Scatter Plot", NULL, NULL, {-1,300})) {
ImGui::PushPlotStyleVar(ImPlotStyleVar_LineWeight, 0);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Cross);
ImGui::PushPlotStyleVar(ImPlotStyleVar_MarkerSize, 3);
ImGui::Plot("Data 1", xs1, ys1, 100);
ImGui::PopPlotStyleVar(2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle);
ImGui::PushPlotColor(ImPlotCol_MarkerFill, ImVec4{1,0,0,0.25f});
ImGui::Plot("Data 2", xs2, ys2, 50);
ImGui::PopPlotColor();
ImGui::PopPlotStyleVar(2);
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Bar Plots")) {
static bool horz = false;
ImGui::Checkbox("Horizontal",&horz);
if (horz)
ImGui::SetNextPlotRange(0, 110, -0.5f, 9.5f, ImGuiCond_Always);
else
ImGui::SetNextPlotRange(-0.5f, 9.5f, 0, 110, ImGuiCond_Always);
if (ImGui::BeginPlot("Bar Plot", horz ? "Score": "Student", horz ? "Student" : "Score", {-1, 300})) {
static float midtm[10] = {83, 67, 23, 89, 83, 78, 91, 82, 85, 90};
static float final[10] = {80, 62, 56, 99, 55, 78, 88, 78, 90, 100};
static float grade[10] = {80, 69, 52, 92, 72, 78, 75, 76, 89, 95};
if (horz) {
ImGui::PlotBarH("Midterm Exam", midtm, 10, 0.2f, -0.2f);
ImGui::PlotBarH("Final Exam", final, 10, 0.2f, 0);
ImGui::PlotBarH("Course Grade", grade, 10, 0.2f, 0.2f);
}
else {
ImGui::PlotBar("Midterm Exam", midtm, 10, 0.2f, -0.2f);
ImGui::PlotBar("Final Exam", final, 10, 0.2f, 0);
ImGui::PlotBar("Course Grade", grade, 10, 0.2f, 0.2f);
}
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Error Bars")) {
float xs[5] = {1,2,3,4,5};
float lin[5] = {8,8,9,7,8};
float bar[5] = {1,2,5,3,4};
float err1[5] = {0.2, 0.4, 0.2, 0.6, 0.4};
float err2[5] = {0.4, 0.2, 0.4, 0.8, 0.6};
ImGui::SetNextPlotRange(0, 6, 0, 10);
if (ImGui::BeginPlot("##ErrorBars",NULL,NULL,ImVec2(-1,300))) {
ImGui::PlotBar("Bar", xs, bar, 5, 0.5f);
ImGui::PlotErrorBars("Bar", xs, bar, err1, 5);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle);
ImGui::PushPlotStyleVar(ImPlotStyleVar_MarkerSize, 3);
ImGui::PushPlotColor(ImPlotCol_ErrorBar, ImVec4(1,0,0,1));
ImGui::PlotErrorBars("Line", xs, lin, err1, err2, 5);
ImGui::Plot("Line", xs, lin, 5);
ImGui::PopPlotStyleVar(2);
ImGui::PopPlotColor();
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Realtime Plots")) {
ImGui::BulletText("Move your mouse to change the data!");
static bool paused = false;
static ScrollingData sdata1, sdata2;
static RollingData rdata1, rdata2;
ImVec2 mouse = ImGui::GetMousePos();
static float t = 0;
if (!paused) {
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);
}
ImGui::SetNextPlotRangeX(t - 10, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
static int rt_axis = ImAxisFlags_Default & ~ImAxisFlags_TickLabels;
if (ImGui::BeginPlot("##Scrolling", NULL, NULL, {-1,150}, ImPlotFlags_Default, rt_axis, rt_axis)) {
ImGui::Plot("Data 1", &sdata1.Data[0].x, &sdata1.Data[0].y, sdata1.Data.size(), sdata1.Offset, 2 * sizeof(float));
ImGui::Plot("Data 2", &sdata2.Data[0].x, &sdata2.Data[0].y, sdata2.Data.size(), sdata2.Offset, 2 * sizeof(float));
ImGui::EndPlot();
}
ImGui::SetNextPlotRangeX(0, 10, ImGuiCond_Always);
if (ImGui::BeginPlot("##Rolling", NULL, NULL, {-1,150}, ImPlotFlags_Default, rt_axis, rt_axis)) {
ImGui::Plot("Data 1", &rdata1.Data[0].x, &rdata1.Data[0].y, rdata1.Data.size(), 0, 2 * sizeof(float));
ImGui::Plot("Data 2", &rdata2.Data[0].x, &rdata2.Data[0].y, rdata2.Data.size(), 0, 2 * sizeof(float));
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Markers and Labels")) {
ImGui::SetNextPlotRange(0, 10, 0, 12);
if (ImGui::BeginPlot("##MarkerStyles", NULL, NULL, ImVec2(-1,300), 0, 0, 0)) {
float xs[2] = {1,4};
float ys[2] = {10,11};
// filled
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle);
ImGui::Plot("Circle##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Square); ys[0]--; ys[1]--;
ImGui::Plot("Square##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Diamond); ys[0]--; ys[1]--;
ImGui::Plot("Diamond##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Up); ys[0]--; ys[1]--;
ImGui::Plot("Up##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Down); ys[0]--; ys[1]--;
ImGui::Plot("Down##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Left); ys[0]--; ys[1]--;
ImGui::Plot("Left##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Right); ys[0]--; ys[1]--;
ImGui::Plot("Right##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Cross); ys[0]--; ys[1]--;
ImGui::Plot("Cross##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Plus); ys[0]--; ys[1]--;
ImGui::Plot("Plus##Fill", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Asterisk); ys[0]--; ys[1]--;
ImGui::Plot("Asterisk##Fill", xs, ys, 2);
ImGui::PopPlotStyleVar(10);
xs[0] = 6; xs[1] = 9;
ys[0] = 10; ys[1] = 11;
ImGui::PushPlotColor(ImPlotCol_MarkerFill, ImVec4(0,0,0,0));
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle);
ImGui::Plot("Circle", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Square); ys[0]--; ys[1]--;
ImGui::Plot("Square", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Diamond); ys[0]--; ys[1]--;
ImGui::Plot("Diamond", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Up); ys[0]--; ys[1]--;
ImGui::Plot("Up", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Down); ys[0]--; ys[1]--;
ImGui::Plot("Down", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Left); ys[0]--; ys[1]--;
ImGui::Plot("Left", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Right); ys[0]--; ys[1]--;
ImGui::Plot("Right", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Cross); ys[0]--; ys[1]--;
ImGui::Plot("Cross", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Plus); ys[0]--; ys[1]--;
ImGui::Plot("Plus", xs, ys, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Asterisk); ys[0]--; ys[1]--;
ImGui::Plot("Asterisk", xs, ys, 2);
ImGui::PopPlotColor();
ImGui::PopPlotStyleVar(10);
xs[0] = 5; xs[1] = 5;
ys[0] = 1; ys[1] = 11;
ImGui::PushPlotStyleVar(ImPlotStyleVar_LineWeight, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_MarkerSize, 8);
ImGui::PushPlotStyleVar(ImPlotStyleVar_MarkerWeight, 2);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Circle | ImMarker_Cross);
ImGui::PushPlotColor(ImPlotCol_MarkerOutline, ImVec4(0,0,0,1));
ImGui::PushPlotColor(ImPlotCol_MarkerFill, ImVec4(1,1,1,1));
ImGui::PushPlotColor(ImPlotCol_Line, ImVec4(0,0,0,1));
ImGui::Plot("Circle|Cross", xs, ys, 2);
ImGui::PopPlotStyleVar(4);
ImGui::PopPlotColor(3);
ImGui::PlotLabel("Filled Markers", 1.5, 11.75);
ImGui::PlotLabel("Open Markers", 6.75, 11.75);
ImGui::PlotLabel("Fancy Markers", 4.5, 4.25, true);
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Log Scale")) {
ImGui::BulletText("Open the plot context menu (double right click) to change scales.");
static float xs[1001], ys1[1001], ys2[1001], ys3[1001];
for (int i = 0; i < 1001; ++i) {
xs[i] = (float)(i*0.1f);
ys1[i] = sin(xs[i]) + 1;
ys2[i] = log(xs[i]);
ys3[i] = pow(10.0f, xs[i]);
}
ImGui::SetNextPlotRange(0.1f, 100, 0, 10);
if (ImGui::BeginPlot("Log Plot", NULL, NULL, ImVec2(-1,300), ImPlotFlags_Default, ImAxisFlags_Default | ImAxisFlags_LogScale )) {
ImGui::Plot("f(x) = x", xs, xs, 1001);
ImGui::Plot("f(x) = sin(x)+1", xs, ys1, 1001);
ImGui::Plot("f(x) = log(x)", xs, ys2, 1001);
ImGui::Plot("f(x) = 10^x", xs, ys3, 21);
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Querying")) {
ImGui::BulletText("Ctrl + click in the plot area to draw points.");
ImGui::BulletText("Middle click (or Ctrl + right click) and drag to query points.");
ImGui::BulletText("Hold the Alt and/or Shift keys to expand the query range.");
static ImVector<ImVec2> data;
ImPlotRange range, query;
if (ImGui::BeginPlot("##Drawing", NULL, NULL, ImVec2(-1,300), ImPlotFlags_Default, ImAxisFlags_GridLines, ImAxisFlags_GridLines)) {
if (ImGui::IsPlotHovered() && ImGui::IsMouseClicked(0) && ImGui::GetIO().KeyCtrl)
data.push_back(ImGui::GetPlotMousePos());
ImGui::PushPlotStyleVar(ImPlotStyleVar_LineWeight, 0);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Diamond);
if (data.size() > 0)
ImGui::Plot("Points", &data[0].x, &data[0].y, data.size(), 0, 2 * sizeof(float));
if (ImGui::IsPlotQueried() && data.size() > 0) {
ImPlotRange range = ImGui::GetPlotQuery();
int cnt = 0;
ImVec2 avg;
for (int i = 0; i < data.size(); ++i) {
if (range.Contains(data[i])) {
avg.x += data[i].x;
avg.y += data[i].y;
cnt++;
}
}
if (cnt > 0) {
avg.x = avg.x / cnt;
avg.y = avg.y / cnt;
ImGui::Plot("Average", &avg.x, &avg.y, 1);
}
}
ImGui::PopPlotStyleVar(2);
range = ImGui::GetPlotRange();
query = ImGui::GetPlotQuery();
ImGui::EndPlot();
}
ImGui::Text("The current plot range is: [%g,%g,%g,%g]", range.XMin, range.XMax, range.YMin, range.YMax);
ImGui::Text("The current query range is: [%g,%g,%g,%g]", query.XMin, query.XMax, query.YMin, query.YMax);
}
//-------------------------------------------------------------------------
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 * 3.14 * freq * t;
y_data1[i] = sin(arg);
y_data2[i] = y_data1[i] * -0.6 + sin(2 * arg) * 0.4;
y_data3[i] = y_data2[i] * -0.6 + sin(3 * arg) * 0.4;
}
ImGui::BulletText("Query the first plot to render a subview in the second plot.");
ImGui::BulletText("Toggle \"Pixel Query\" in the context menu and then pan the plot.");
ImGui::SetNextPlotRange(0,0.01f,-1,1);
ImAxisFlags flgs = ImAxisFlags_Default & ~ImAxisFlags_TickLabels;
ImPlotRange query;
if (ImGui::BeginPlot("##View1",NULL,NULL,ImVec2(-1,150), ImPlotFlags_Default, flgs, flgs)) {
ImGui::Plot("Signal 1", x_data, y_data1, 512);
ImGui::Plot("Signal 2", x_data, y_data2, 512);
ImGui::Plot("Signal 3", x_data, y_data3, 512);
query = ImGui::GetPlotQuery();
ImGui::EndPlot();
}
ImGui::SetNextPlotRange(query.XMin, query.XMax, query.YMin, query.YMax, ImGuiCond_Always);
if (ImGui::BeginPlot("##View2",NULL,NULL,ImVec2(-1,150), 0, 0, 0)) {
ImGui::Plot("Signal 1", x_data, y_data1, 512);
ImGui::Plot("Signal 2", x_data, y_data2, 512);
ImGui::Plot("Signal 3", x_data, y_data3, 512);
ImGui::EndPlot();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Drag and Drop")) {
srand(10000000 * ImGui::GetTime());
static bool paused = false;
static bool init = true;
static ScrollingData data[10];
static bool show[10];
if (init) {
for (int i = 0; i < 10; ++i) {
show[i] = false;
}
init = false;
}
ImGui::BulletText("Drag data items from the left column onto the plot.");
ImGui::BeginGroup();
if (ImGui::Button("Clear", {100, 0})) {
for (int i = 0; i < 10; ++i) {
show[i] = false;
data[i].Data.shrink(0);
data[i].Offset = 0;
}
}
if (ImGui::Button(paused ? "Resume" : "Pause", {100,0}))
paused = !paused;
ImGui::Separator();
for (int i = 0; i < 10; ++i) {
char label[8];
sprintf(label, "data_%d", i);
ImGui::Selectable(label, false, 0, {100, 0});
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("DND_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImGui::EndDragDropSource();
}
}
ImGui::EndGroup();
ImGui::SameLine();
static float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;
for (int i = 0; i < 10; ++i) {
if (show[i])
data[i].AddPoint(t, data[i].Data.empty() ?
0.25f + 0.5f * (float)rand() / float(RAND_MAX) :
data[i].Data.back().y + (0.005f + 0.0002f * (float)rand() / float(RAND_MAX)) * (-1 + 2 * (float)rand() / float(RAND_MAX)));
}
}
ImGui::SetNextPlotRangeX(t - 10, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
if (ImGui::BeginPlot("##DND", NULL, NULL, ImVec2(-1,300), ImPlotFlags_Default)) {
for (int i = 0; i < 10; ++i) {
if (show[i]) {
char label[8];
sprintf(label, "data_%d", i);
ImGui::Plot(label, &data[i].Data[0].x, &data[i].Data[0].y, data[i].Data.size(), data[i].Offset, 2 * sizeof(float));
}
}
ImGui::EndPlot();
}
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_PLOT")) {
int i = *(int*)payload->Data;
show[i] = true;
}
ImGui::EndDragDropTarget();
}
}
if (ImGui::CollapsingHeader("Digital")) {
static int bitHeight = 7;
ImGui::SetNextItemWidth(100);
ImGui::DragInt("Bit Hieght", &bitHeight, 0.2, 5, 50);
/// Set the X axis range of the next plot. Call right before BeginPlot(). If ImGuiCond_Always is used, the axis will be locked.
//void SetNextPlotRangeX(float x_min, float x_max, ImGuiCond cond = ImGuiCond_Once);
static bool paused = false;
#define K_PLOT_DIGITAL_CH_COUNT 8
#define K_PLOT_ANALOG_CH_COUNT 4
static ScrollingData dataDigital[K_PLOT_DIGITAL_CH_COUNT];
static ScrollingData dataAnalog[K_PLOT_ANALOG_CH_COUNT];
static bool showDigital[K_PLOT_DIGITAL_CH_COUNT];
static bool showAnalog[K_PLOT_ANALOG_CH_COUNT];
ImGui::BulletText("Drag data items from the left column onto the plot.");
ImGui::BeginGroup();
if (ImGui::Button("Clear", {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", {100,0}))
paused = !paused;
ImGui::Separator();
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i) {
char label[32];
sprintf(label, "digital_data_%d", i);
ImGui::Checkbox(label, &showDigital[i]);
//ImGui::Selectable(label, false, 0, {100, 0});
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_data_%d", i);
ImGui::Checkbox(label, &showAnalog[i]);
//ImGui::Selectable(label, false, 0, {100, 0});
if (ImGui::BeginDragDropSource(ImGuiDragDropFlags_None)) {
ImGui::SetDragDropPayload("DND_ANALOG_PLOT", &i, sizeof(int));
ImGui::TextUnformatted(label);
ImGui::EndDragDropSource();
}
}
ImGui::EndGroup();
ImGui::SameLine();
static float t = 0;
if (true) {
t += ImGui::GetIO().DeltaTime;
//purge inactive signals
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i) {
if (!showDigital[i])
dataDigital[i].Erase();
}
for (int i = 0; i < K_PLOT_ANALOG_CH_COUNT; ++i) {
if (!showAnalog[i])
dataAnalog[i].Erase();
}
//digital signal values
int i = 0;
if (showDigital[i])
dataDigital[i].AddPoint(t, sin(t) > 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, sin(t) < 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, sin(t) > 0.83);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, sin(t) < 0.17);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, cos(t) > 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, cos(t) < 0.45);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, cos(t) > 0.83);
i++;
if (showDigital[i])
dataDigital[i].AddPoint(t, cos(t) < 0.17);
//Analog signal values
i = 0;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, sin(t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, cos(t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, sin(t) * cos(t));
i++;
if (showAnalog[i])
dataAnalog[i].AddPoint(t, sin(t) - cos(t));
i++;
}
Update implot_demo.cpp
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ImGui::SetNextPlotRangeX(t - 10.0f, t, paused ? ImGuiCond_Once : ImGuiCond_Always);
Update implot_demo.cpp
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if (ImGui::BeginPlot("##DND", NULL, NULL, ImVec2(-1,300), ImPlotFlags_Default)) {
for (int i = 0; i < K_PLOT_DIGITAL_CH_COUNT; ++i) {
if (showDigital[i]) {
char label[32];
sprintf(label, "digital_data_%d", i);
ImGui::PushPlotStyleVar(ImPlotStyleVar_DigitalBitHeight, bitHeight);
ImGui::PlotDigital(label, &dataDigital[i].Data[0].x, &dataDigital[i].Data[0].y, dataDigital[i].Data.size(), dataDigital[i].Offset, 2 * sizeof(float));
ImGui::PopPlotStyleVar();
}
}
for (int i = 0; i < K_PLOT_ANALOG_CH_COUNT; ++i) {
if (showAnalog[i]) {
char label[32];
sprintf(label, "analog_data_%d", i);
if (dataAnalog[i].Data.size() > 0)
ImGui::Plot(label, &dataAnalog[i].Data[0].x, &dataAnalog[i].Data[0].y, dataAnalog[i].Data.size(), dataAnalog[i].Offset, 2 * sizeof(float));
}
}
ImGui::EndPlot();
}
if (ImGui::BeginDragDropTarget()) {
if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_DIGITAL_PLOT")) {
int i = *(int*)payload->Data;
showDigital[i] = true;
}
else if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload("DND_ANALOG_PLOT")) {
int i = *(int*)payload->Data;
showAnalog[i] = true;
}
ImGui::EndDragDropTarget();
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Custom Styles")) {
static ImVec4 my_palette[3] = {
{0.000f, 0.980f, 0.604f, 1.0f},
{0.996f, 0.278f, 0.380f, 1.0f},
{(0.1176470593F), (0.5647059083F), (1.0F), (1.0F)},
};
ImGui::SetPlotPalette(my_palette, 3);
ImGui::PushPlotColor(ImPlotCol_FrameBg, IM_COL32(32,51,77,255));
ImGui::PushPlotColor(ImPlotCol_PlotBg, {0,0,0,0});
ImGui::PushPlotColor(ImPlotCol_PlotBorder, {0,0,0,0});
ImGui::PushPlotColor(ImPlotCol_XAxis, IM_COL32(192, 192, 192, 192));
ImGui::PushPlotColor(ImPlotCol_YAxis, IM_COL32(192, 192, 192, 192));
ImGui::PushPlotStyleVar(ImPlotStyleVar_LineWeight, 2);
ImGui::SetNextPlotRange(-0.5f, 9.5f, -0.5f, 9.5f);
if (ImGui::BeginPlot("##Custom", NULL, NULL, {-1,300}, ImPlotFlags_Default & ~ImPlotFlags_Legend, 0)) {
float lin[10] = {8,8,9,7,8,8,8,9,7,8};
float bar[10] = {1,2,5,3,4,1,2,5,3,4};
float dot[10] = {7,6,6,7,8,5,6,5,8,7};
ImGui::PlotBar("Bar", bar, 10, 0.5f);
ImGui::Plot("Line", lin, 10);
ImGui::PushPlotStyleVar(ImPlotStyleVar_LineWeight, 0);
ImGui::PushPlotStyleVar(ImPlotStyleVar_Marker, ImMarker_Square);
ImGui::Plot("Dot", dot, 10);
ImGui::PopPlotStyleVar(2);
ImGui::EndPlot();
}
ImGui::PopPlotColor(5);
ImGui::PopPlotStyleVar();
ImGui::RestorePlotPalette();
}
//-------------------------------------------------------------------------
// if (ImGui::CollapsingHeader("Benchmark")) {
// }
//-------------------------------------------------------------------------
ImGui::End();
Update implot_demo.cpp
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commit v0.1 source code
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}
Update implot_demo.cpp
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} // namespace ImGui
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