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shaded plots complete

This commit is contained in:
Evan Pezent 2020-06-13 12:42:47 -05:00
parent 61bc4d1426
commit fee873d74a
3 changed files with 203 additions and 192 deletions

View File

@ -20,7 +20,7 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.3 WIP
// ImPlot v0.4 WIP
/*
@ -88,6 +88,7 @@ ImPlotStyle::ImPlotStyle() {
Marker = ImPlotMarker_None;
MarkerSize = 4;
MarkerWeight = 1;
FillAlpha = 1;
ErrorBarSize = 5;
ErrorBarWeight = 1.5;
DigitalBitHeight = 8;
@ -177,6 +178,11 @@ inline T Remap(T x, T x0, T x1, T y0, T y1) {
return y0 + (x - x0) * (y1 - y0) / (x1 - x0);
}
// Returns always positive modulo
inline int PosMod(int l, int r) {
return (l % r + r) % r;
}
// Turns NANs to 0s
inline double ConstrainNan(double val) {
return isnan(val) ? 0 : val;
@ -235,6 +241,11 @@ inline ImVec2 CalcTextSizeVertical(const char *text) {
return ImVec2(sz.y, sz.x);
}
/// Returns white or black text given background color
inline ImU32 CalcTextColor(const ImVec4& bg) {
return (bg.x * 0.299 + bg.y * 0.587 + bg.z * 0.114) > 0.729 ? IM_COL32_BLACK : IM_COL32_WHITE;
}
} // private namespace
//-----------------------------------------------------------------------------
@ -2240,57 +2251,13 @@ struct LineRenderer {
static const int VtxConsumed = 4;
};
template <typename Getter, typename Transformer>
struct LineFillRenderer {
LineFillRenderer(Getter _getter, Transformer _transformer, ImU32 col, float zero) :
getter(_getter),
transformer(_transformer),
Col(col),
Zero(zero)
{
Prims = getter.Count - 1;
p1 = transformer(getter(0));
}
inline bool operator()(ImDrawList& DrawList, ImVec2 uv, int prim) {
ImVec2 p2 = transformer(getter(prim + 1));
const int crosses_zero = (p1.y > Zero && p2.y < Zero) || (p1.y < Zero && p2.y > Zero); // could do y*y < 0 earlier on
const float xmid = p1.x + (p2.x - p1.x) / (p2.y-p1.y) * (Zero - p1.y);
DrawList._VtxWritePtr[0].pos = p1;
DrawList._VtxWritePtr[0].uv = uv;
DrawList._VtxWritePtr[0].col = Col;
DrawList._VtxWritePtr[1].pos = p2;
DrawList._VtxWritePtr[1].uv = uv;
DrawList._VtxWritePtr[1].col = Col;
DrawList._VtxWritePtr[2].pos = ImVec2(xmid, Zero);
DrawList._VtxWritePtr[2].uv = uv;
DrawList._VtxWritePtr[2].col = Col;
DrawList._VtxWritePtr[3].pos = ImVec2(p1.x, Zero);
DrawList._VtxWritePtr[3].uv = uv;
DrawList._VtxWritePtr[3].col = Col;
DrawList._VtxWritePtr[4].pos = ImVec2(p2.x, Zero);;
DrawList._VtxWritePtr[4].uv = uv;
DrawList._VtxWritePtr[4].col = Col;
DrawList._VtxWritePtr += 5;
DrawList._IdxWritePtr[0] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1 + crosses_zero);
DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr[3] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3 - crosses_zero);
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 4);
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 5;
p1 = p2;
return true;
}
Getter getter;
Transformer transformer;
int Prims;
ImU32 Col;
float Zero;
ImVec2 p1;
static const int IdxConsumed = 6;
static const int VtxConsumed = 5;
};
inline ImVec2 Intersection(const ImVec2& a1, const ImVec2& a2, const ImVec2& b1, const ImVec2& b2) {
float v1 = (a1.x * a2.y - a1.y * a2.x);
float v2 = (b1.x * b2.y - b1.y * b2.x);
float v3 = ((a1.x - a2.x) * (b1.y - b2.y) - (a1.y - a2.y) * (b1.x - b2.x));
return ImVec2((v1 * (b1.x - b2.x) - v2 * (a1.x - a2.x)) / v3,
(v1 * (b1.y - b2.y) - v2 * (a1.y - a2.y)) / v3);
}
template <typename Getter1, typename Getter2, typename Transformer>
struct ShadedRenderer {
@ -2309,32 +2276,36 @@ struct ShadedRenderer {
inline bool operator()(ImDrawList& DrawList, ImVec2 uv, int prim) {
ImVec2 p21 = transformer(getter1(prim+1));
ImVec2 p22 = transformer(getter2(prim+1));
const int intersect = (p11.y > p12.y && p22.y > p21.y) || (p12.y > p11.y && p21.y > p22.y);
ImVec2 intersection = Intersection(p11,p21,p12,p22);
DrawList._VtxWritePtr[0].pos = p11;
DrawList._VtxWritePtr[0].uv = uv;
DrawList._VtxWritePtr[0].col = Col;
DrawList._VtxWritePtr[1].pos = p12;
DrawList._VtxWritePtr[1].pos = p21;
DrawList._VtxWritePtr[1].uv = uv;
DrawList._VtxWritePtr[1].col = Col;
DrawList._VtxWritePtr[2].pos = p21;
DrawList._VtxWritePtr[2].pos = intersection;
DrawList._VtxWritePtr[2].uv = uv;
DrawList._VtxWritePtr[2].col = Col;
DrawList._VtxWritePtr[3].pos = p22;
DrawList._VtxWritePtr[3].pos = p12;
DrawList._VtxWritePtr[3].uv = uv;
DrawList._VtxWritePtr[3].col = Col;
DrawList._VtxWritePtr += 4;
DrawList._VtxWritePtr[4].pos = p22;
DrawList._VtxWritePtr[4].uv = uv;
DrawList._VtxWritePtr[4].col = Col;
DrawList._VtxWritePtr += 5;
DrawList._IdxWritePtr[0] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1 + intersect);
DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr[3] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3 - intersect);
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 4);
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 4;
DrawList._VtxCurrentIdx += 5;
p11 = p21;
p12 = p22;
return true;
}
Getter1 getter1;
Getter2 getter2;
Transformer transformer;
@ -2342,7 +2313,7 @@ struct ShadedRenderer {
ImU32 Col;
ImVec2 p11, p12;
static const int IdxConsumed = 6;
static const int VtxConsumed = 4;
static const int VtxConsumed = 5;
};
// struct RectRenderer {
@ -2416,38 +2387,10 @@ inline void RenderPrimitives(Renderer renderer, ImDrawList& DrawList, bool cull)
DrawList.PrimUnreserve(prims_culled * Renderer::IdxConsumed, prims_culled * Renderer::VtxConsumed);
}
template <typename Getter, typename Transformer>
inline void RenderLineStrip(Getter getter, Transformer transformer, ImDrawList& DrawList, float line_weight, ImU32 col, bool cull) {
if (HasFlag(gp.CurrentPlot->Flags, ImPlotFlags_AntiAliased)) {
ImVec2 p1 = transformer(getter(0));
for (int i = 0; i < getter.Count; ++i) {
ImVec2 p2 = transformer(getter(i));
if (!cull || gp.BB_Plot.Overlaps(ImRect(ImMin(p1, p2), ImMax(p1, p2))))
DrawList.AddLine(p1, p2, col, line_weight);
p1 = p2;
}
}
else {
RenderPrimitives(LineRenderer<Getter,Transformer>(getter, transformer, col, line_weight), DrawList, cull);
}
}
template <typename Getter, typename Transformer>
inline void RenderLineFill(Getter getter, Transformer transformer, ImDrawList& DrawList, ImU32 col_fill) {
// TODO: Culling
float zero = transformer(0,0).y;
RenderPrimitives(LineFillRenderer<Getter,Transformer>(getter,transformer,col_fill,zero), DrawList, false);
// RenderPrimitives(getter, transformer, LineFillRenderer(col_fill, zero), DrawList, false);
}
//-----------------------------------------------------------------------------
// GETTERS
//-----------------------------------------------------------------------------
inline int PosMod(int l, int r) {
return (l % r + r) % r;
}
template <typename T>
inline T OffsetAndStride(const T* data, int idx, int count, int offset, int stride) {
idx = PosMod(offset + idx, count);
@ -2489,6 +2432,26 @@ struct GetterXsYs {
}
};
template <typename T>
struct GetterXsYRef {
GetterXsYRef(const T* xs, T y_ref, int count, int offset, int stride) {
Xs = xs;
YRef = y_ref;
Count = count;
Offset = PosMod(offset, count);;
Stride = stride;
}
const T* Xs;
T YRef;
int Count;
int Offset;
int Stride;
inline ImPlotPoint operator()(int idx) {
return ImPlotPoint(OffsetAndStride(Xs, idx, Count, Offset, Stride), YRef);
}
};
struct GetterImVec2 {
GetterImVec2(const ImVec2* data, int count, int offset) {
Data = data;
@ -2531,10 +2494,26 @@ struct GetterFuncPtrImPlotPoint {
// PLOT
//-----------------------------------------------------------------------------
template <typename Getter, typename Transformer>
inline void RenderLineStrip(Getter getter, Transformer transformer, ImDrawList& DrawList, float line_weight, ImU32 col, bool cull) {
if (HasFlag(gp.CurrentPlot->Flags, ImPlotFlags_AntiAliased)) {
ImVec2 p1 = transformer(getter(0));
for (int i = 0; i < getter.Count; ++i) {
ImVec2 p2 = transformer(getter(i));
if (!cull || gp.BB_Plot.Overlaps(ImRect(ImMin(p1, p2), ImMax(p1, p2))))
DrawList.AddLine(p1, p2, col, line_weight);
p1 = p2;
}
}
else {
RenderPrimitives(LineRenderer<Getter,Transformer>(getter, transformer, col, line_weight), DrawList, cull);
}
}
template <typename Getter>
inline void PlotEx(const char* label_id, Getter getter)
{
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "Plot() needs to be called between BeginPlot() and EndPlot()!");
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotEx() needs to be called between BeginPlot() and EndPlot()!");
ImPlotState* plot = gp.CurrentPlot;
const int y_axis = plot->CurrentYAxis;
@ -2545,7 +2524,6 @@ inline void PlotEx(const char* label_id, Getter getter)
ImDrawList & DrawList = *ImGui::GetWindowDrawList();
const bool rend_line = gp.Style.Colors[ImPlotCol_Line].w != 0 && gp.Style.LineWeight > 0;
const bool rend_fill = gp.Style.Colors[ImPlotCol_Fill].w > 0;
ImU32 col_line = gp.Style.Colors[ImPlotCol_Line].w == -1 ? ImGui::GetColorU32(item->Color) : ImGui::GetColorU32(gp.Style.Colors[ImPlotCol_Line]);
@ -2560,26 +2538,8 @@ inline void PlotEx(const char* label_id, Getter getter)
ImPlotPoint p = getter(i);
FitPoint(p);
}
if (rend_fill) {
ImPlotPoint p1 = getter(0);
ImPlotPoint p2 = getter(getter.Count - 1);
p1.y = 0; p2.y = 0;
FitPoint(p1); FitPoint(p2);
}
}
PushPlotClipRect();
// render fill
if (getter.Count > 1 && rend_fill) {
const ImU32 col_fill = ImGui::GetColorU32(gp.Style.Colors[ImPlotCol_Fill]);
if (HasFlag(plot->XAxis.Flags, ImPlotAxisFlags_LogScale) && HasFlag(plot->YAxis[y_axis].Flags, ImPlotAxisFlags_LogScale))
RenderLineFill(getter, TransformerLogLog(y_axis), DrawList, col_fill);
else if (HasFlag(plot->XAxis.Flags, ImPlotAxisFlags_LogScale))
RenderLineFill(getter, TransformerLogLin(y_axis), DrawList, col_fill);
else if (HasFlag(plot->YAxis[y_axis].Flags, ImPlotAxisFlags_LogScale))
RenderLineFill(getter, TransformerLinLog(y_axis), DrawList, col_fill);
else
RenderLineFill(getter, TransformerLinLin(y_axis), DrawList, col_fill);
}
// render line
if (getter.Count > 1 && rend_line) {
const float line_weight = item->Highlight ? gp.Style.LineWeight * 2 : gp.Style.LineWeight;
@ -2628,7 +2588,6 @@ void PlotLine(const char* label_id, const ImVec2* data, int count, int offset) {
return PlotEx(label_id, getter);
}
//-----------------------------------------------------------------------------
// double
@ -2655,47 +2614,6 @@ void PlotLine(const char* label_id, ImPlotPoint (*getter_func)(void* data, int i
return PlotEx(label_id, getter);
}
//-----------------------------------------------------------------------------
// PLOT SHADED
//-----------------------------------------------------------------------------
void PlotShaded(const char* label_id, const double* xs, const double* ys1, const double* ys2, int count, int offset, int stride) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotShaded() needs to be called between BeginPlot() and EndPlot()!");
ImPlotState* plot = gp.CurrentPlot;
const int y_axis = plot->CurrentYAxis;
ImPlotItem* item = RegisterItem(label_id);
if (!item->Show)
return;
GetterXsYs<double> getter1(xs, ys1, count, offset, stride);
GetterXsYs<double> getter2(xs, ys2, count, offset, stride);
ImDrawList & DrawList = *ImGui::GetWindowDrawList();
ImVec4 col_fill = gp.Style.Colors[ImPlotCol_Fill].w == -1 ? (item->Color) : (gp.Style.Colors[ImPlotCol_Fill]);
col_fill.w *= gp.Style.FillAlpha;
if (gp.Style.Colors[ImPlotCol_Fill].w != -1)
item->Color = gp.Style.Colors[ImPlotCol_Fill];
bool cull = HasFlag(plot->Flags, ImPlotFlags_CullData);
if (gp.FitThisFrame) {
for (int i = 0; i < count; ++i) {
ImPlotPoint p1 = getter1(i);
ImPlotPoint p2 = getter2(i);
FitPoint(p1);
FitPoint(p2);
}
}
PushPlotClipRect();
RenderPrimitives(ShadedRenderer<GetterXsYs<double>,GetterXsYs<double>,TransformerLinLin>(getter1,getter2,TransformerLinLin(y_axis), ImGui::GetColorU32(col_fill)), DrawList, false);
PopPlotClipRect();
}
//-----------------------------------------------------------------------------
// PLOT SCATTER
//-----------------------------------------------------------------------------
@ -2761,6 +2679,81 @@ void PlotScatter(const char* label_id, ImPlotPoint (*getter)(void* data, int idx
PopStyleVar(vars);
}
//-----------------------------------------------------------------------------
// PLOT SHADED
//-----------------------------------------------------------------------------
template <typename Getter1, typename Getter2>
inline void PlotShadedEx(const char* label_id, Getter1 getter1, Getter2 getter2) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotShaded() needs to be called between BeginPlot() and EndPlot()!");
ImPlotState* plot = gp.CurrentPlot;
const int y_axis = plot->CurrentYAxis;
ImPlotItem* item = RegisterItem(label_id);
if (!item->Show)
return;
ImDrawList & DrawList = *ImGui::GetWindowDrawList();
ImVec4 col_fill = gp.Style.Colors[ImPlotCol_Fill].w == -1 ? (item->Color) : (gp.Style.Colors[ImPlotCol_Fill]);
col_fill.w *= gp.Style.FillAlpha;
if (gp.Style.Colors[ImPlotCol_Fill].w != -1)
item->Color = gp.Style.Colors[ImPlotCol_Fill];
bool cull = HasFlag(plot->Flags, ImPlotFlags_CullData);
if (gp.FitThisFrame) {
for (int i = 0; i < ImMin(getter1.Count, getter2.Count); ++i) {
ImPlotPoint p1 = getter1(i);
ImPlotPoint p2 = getter2(i);
FitPoint(p1);
FitPoint(p2);
}
}
PushPlotClipRect();
if (HasFlag(plot->XAxis.Flags, ImPlotAxisFlags_LogScale) && HasFlag(plot->YAxis[y_axis].Flags, ImPlotAxisFlags_LogScale))
RenderPrimitives(ShadedRenderer<Getter1,Getter2,TransformerLogLog>(getter1,getter2,TransformerLogLog(y_axis), ImGui::GetColorU32(col_fill)), DrawList, false);
else if (HasFlag(plot->XAxis.Flags, ImPlotAxisFlags_LogScale))
RenderPrimitives(ShadedRenderer<Getter1,Getter2,TransformerLogLin>(getter1,getter2,TransformerLogLin(y_axis), ImGui::GetColorU32(col_fill)), DrawList, false);
else if (HasFlag(plot->YAxis[y_axis].Flags, ImPlotAxisFlags_LogScale))
RenderPrimitives(ShadedRenderer<Getter1,Getter2,TransformerLinLog>(getter1,getter2,TransformerLinLog(y_axis), ImGui::GetColorU32(col_fill)), DrawList, false);
else
RenderPrimitives(ShadedRenderer<Getter1,Getter2,TransformerLinLin>(getter1,getter2,TransformerLinLin(y_axis), ImGui::GetColorU32(col_fill)), DrawList, false);
PopPlotClipRect();
}
//-----------------------------------------------------------------------------
// float
void PlotShaded(const char* label_id, const float* xs, const float* ys1, const float* ys2, int count, int offset, int stride) {
GetterXsYs<float> getter1(xs, ys1, count, offset, stride);
GetterXsYs<float> getter2(xs, ys2, count, offset, stride);
PlotShadedEx(label_id, getter1, getter2);
}
void PlotShaded(const char* label_id, const float* xs, const float* ys, int count, float y_ref, int offset, int stride) {
GetterXsYs<float> getter1(xs, ys, count, offset, stride);
GetterXsYRef<float> getter2(xs, y_ref, count, offset, stride);
PlotShadedEx(label_id, getter1, getter2);
}
//-----------------------------------------------------------------------------
// double
void PlotShaded(const char* label_id, const double* xs, const double* ys1, const double* ys2, int count, int offset, int stride) {
GetterXsYs<double> getter1(xs, ys1, count, offset, stride);
GetterXsYs<double> getter2(xs, ys2, count, offset, stride);
PlotShadedEx(label_id, getter1, getter2);
}
void PlotShaded(const char* label_id, const double* xs, const double* ys, int count, double y_ref, int offset, int stride) {
GetterXsYs<double> getter1(xs, ys, count, offset, stride);
GetterXsYRef<double> getter2(xs, y_ref, count, offset, stride);
PlotShadedEx(label_id, getter1, getter2);
}
//-----------------------------------------------------------------------------
// PLOT BAR V
//-----------------------------------------------------------------------------
@ -3239,7 +3232,10 @@ void RenderHeatmap(Transformer transformer, ImDrawList& DrawList, const T* value
char buff[32];
sprintf(buff, fmt, values[i]);
ImVec2 size = ImGui::CalcTextSize(buff);
DrawList.AddText(px - size * 0.5f, ImGui::GetColorU32(ImGuiCol_Text), buff);
float t = (float)Remap(values[i], scale_min, scale_max, T(0), T(1));
ImVec4 color = LerpColormap(t);
ImU32 col = CalcTextColor(color);
DrawList.AddText(px - size * 0.5f, col, buff);
i++;
}
}

View File

@ -20,7 +20,7 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ImPlot v0.3 WIP
// ImPlot v0.4 WIP
#pragma once
#include "imgui.h"
@ -211,10 +211,6 @@ void PlotLine(const char* label_id, const ImVec2* data, int count, int offset =
void PlotLine(const char* label_id, const ImPlotPoint* data, int count, int offset = 0);
void PlotLine(const char* label_id, ImPlotPoint (*getter)(void* data, int idx), void* data, int count, int offset = 0);
// Plots a shaded (filled) region between two lines. Intersecting lines are not currently supported.
void PlotShaded(const char* label_id, const double* xs, const double* ys1, const double* ys2, int count, int offset = 0, int stride = sizeof(double));
// Plots a standard 2D scatter plot.
void PlotScatter(const char* label_id, const float* values, int count, int offset = 0, int stride = sizeof(float));
void PlotScatter(const char* label_id, const double* values, int count, int offset = 0, int stride = sizeof(double));
@ -224,6 +220,12 @@ void PlotScatter(const char* label_id, const ImVec2* data, int count, int offset
void PlotScatter(const char* label_id, const ImPlotPoint* data, int count, int offset = 0);
void PlotScatter(const char* label_id, ImPlotPoint (*getter)(void* data, int idx), void* data, int count, int offset = 0);
// Plots a shaded (filled) region between two lines, or a line and a horizontal reference.
void PlotShaded(const char* label_id, const float* xs, const float* ys1, const float* ys2, int count, int offset = 0, int stride = sizeof(float));
void PlotShaded(const char* label_id, const double* xs, const double* ys1, const double* ys2, int count, int offset = 0, int stride = sizeof(double));
void PlotShaded(const char* label_id, const float* xs, const float* ys, int count, float y_ref = 0, int offset = 0, int stride = sizeof(float));
void PlotShaded(const char* label_id, const double* xs, const double* ys, int count, double y_ref = 0, int offset = 0, int stride = sizeof(double));
// Plots a vertical bar graph.
void PlotBars(const char* label_id, const float* values, int count, float width = 0.67f, float shift = 0, int offset = 0, int stride = sizeof(float));
void PlotBars(const char* label_id, const double* values, int count, double width = 0.67f, double shift = 0, int offset = 0, int stride = sizeof(double));

View File

@ -137,7 +137,7 @@ void ShowDemoWindow(bool* p_open) {
ImGui::EndMenuBar();
}
//-------------------------------------------------------------------------
ImGui::Text("ImPlot says hello. (0.3 WIP)");
ImGui::Text("ImPlot says hello. (0.4 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.");
@ -198,7 +198,32 @@ void ShowDemoWindow(bool* p_open) {
}
}
//-------------------------------------------------------------------------
if (ImGui::CollapsingHeader("Filled Plots")) {
if (ImGui::CollapsingHeader("Shaded Plots")) {
static t_float xs[1001], ys[1001], ys1[1001], ys2[1001], ys3[1001], ys4[1001];
srand(0);
for (int i = 0; i < 1001; ++i) {
xs[i] = i * 0.001f;
ys[i] = 0.25f + 0.25f * Sin(25 * xs[i]) * Sin(5 * xs[i]) + RandomRange(-0.01f, 0.01f);
ys1[i] = ys[i] + RandomRange(0.1f, 0.12f);
ys2[i] = ys[i] - RandomRange(0.1f, 0.12f);
ys3[i] = 0.75f + 0.2f * Sin(25 * xs[i]);
ys4[i] = 0.75f + 0.1f * Cos(25 * xs[i]);
}
static float alpha = 0.25f;
ImGui::DragFloat("Alpha",&alpha,0.01f,0,1);
if (ImPlot::BeginPlot("Shaded Plots")) {
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("Filled Plots")) {
static t_float xs1[101], ys1[101], ys2[101], ys3[101];
srand(0);
for (int i = 0; i < 101; ++i) {
@ -207,39 +232,26 @@ void ShowDemoWindow(bool* p_open) {
ys2[i] = RandomRange(275,350);
ys3[i] = RandomRange(150,225);
}
static bool show_lines = true;
static bool show_fills = true;
static float fill_ref = 0;
ImGui::Checkbox("Lines",&show_lines); ImGui::SameLine();
ImGui::Checkbox("Fills",&show_fills);
ImGui::DragFloat("Reference",&fill_ref, 1, -100, 500);
ImPlot::SetNextPlotLimits(0,100,0,500);
if (ImPlot::BeginPlot("Stock Prices", "Days", "Price")) {
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(1,1,0,1));
ImPlot::PushStyleColor(ImPlotCol_Fill, ImVec4(1,1,0,0.25f));
ImPlot::PlotLine("Stock 1", xs1, ys1, 101);
ImPlot::PopStyleColor(2);
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(1,0,1,1));
ImPlot::PushStyleColor(ImPlotCol_Fill, ImVec4(1,0,1,0.25f));
ImPlot::PlotLine("Stock 2", xs1, ys2, 101);
ImPlot::PopStyleColor(2);
ImPlot::PushStyleColor(ImPlotCol_Line, ImVec4(1,0,0,1));
ImPlot::PushStyleColor(ImPlotCol_Fill, ImVec4(1,0,0,0.25f));
ImPlot::PlotLine("Stock 3", xs1, ys3, 101);
ImPlot::PopStyleColor(2);
ImPlot::EndPlot();
}
}
if (ImGui::CollapsingHeader("Shaded Plots")) {
static double xs[1001], ys[1001], ys1[1001], ys2[1001];
srand(0);
for (int i = 0; i < 1001; ++i) {
xs[i] = i * 0.001f;
ys[i] = 0.5f + 0.25f * Sin(25 * xs[i]) * Sin(5 * xs[i]) + RandomRange(-0.01f, 0.01f);
ys1[i] = ys[i] + RandomRange(0.1f, 0.12f);
ys2[i] = ys[i] - RandomRange(0.1f, 0.12f);
}
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::PopStyleVar();
if (show_fills) {
ImPlot::PushStyleVar(ImPlotStyleVar_FillAlpha, 0.25f);
ImPlot::PlotShaded("Stock 1", xs1, ys1, 101, fill_ref);
ImPlot::PlotShaded("Stock 2", xs1, ys2, 101, fill_ref);
ImPlot::PlotShaded("Stock 3", xs1, ys3, 101, fill_ref);
ImPlot::PopStyleVar();
}
if (show_lines) {
ImPlot::PlotLine("Stock 1", xs1, ys1, 101);
ImPlot::PlotLine("Stock 2", xs1, ys2, 101);
ImPlot::PlotLine("Stock 3", xs1, ys3, 101);
}
ImPlot::EndPlot();
}
}
@ -731,6 +743,7 @@ void ShowDemoWindow(bool* p_open) {
}
ImGui::EndGroup();
ImGui::SameLine();
srand(ImGui::GetTime()*10000000);
static t_float t = 0;
if (!paused) {
t += ImGui::GetIO().DeltaTime;