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Building and showing in demo, now for adding horizontal errors

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This commit is contained in:
Adriano Parisi 2020-06-08 00:05:56 +01:00
parent 8931a8d36b
commit 3f84f43919
2 changed files with 102 additions and 0 deletions
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94
implot.cpp
View File

@ -2916,6 +2916,100 @@ void PlotErrorBars(const char* label_id, const double* xs, const double* ys, con
PlotErrorBarsEx(label_id, getter);
}
//-----------------------------------------------------------------------------
// PLOT ERROR BARS H
//-----------------------------------------------------------------------------
struct ImPlotPointErrorH {
ImPlotPointErrorH(double _x, double _y, double _neg_v, double _pos_v, double _neg_h, double _pos_h) {
x = _x; y = _y; neg_v = _neg_v; pos_v = _pos_v; neg_h = _neg_h; pos_h = _pos_h;
}
double x, y, neg_v, pos_v, neg_h, pos_h;
};
template <typename T>
struct GetterErrorH {
const T* Xs; const T* Ys; const T* Neg_v; const T* Pos_v; const T* Neg_h; const T* Pos_h; int Count; int Offset; int Stride;
GetterErrorH(const T* xs, const T* ys, const T* neg_v, const T* pos_v, const T* neg_h, const T* pos_h, int count, int offset, int stride) {
Xs = xs; Ys = ys; Neg_v = neg_v; Pos_v = pos_v; Neg_h = neg_h; Pos_h = pos_h; Count = count; Offset = offset; Stride = stride;
}
ImPlotPointErrorH operator()(int idx) {
return ImPlotPointErrorH(OffsetAndStride(Xs, idx, Count, Offset, Stride),
OffsetAndStride(Ys, idx, Count, Offset, Stride),
OffsetAndStride(Neg_v, idx, Count, Offset, Stride),
OffsetAndStride(Pos_v, idx, Count, Offset, Stride),
OffsetAndStride(Neg_h, idx, Count, Offset, Stride),
OffsetAndStride(Pos_h, idx, Count, Offset, Stride));
}
};
template <typename Getter>
void PlotErrorBarsHEx(const char* label_id, Getter getter) {
IM_ASSERT_USER_ERROR(gp.CurrentPlot != NULL, "PlotErrorBars() needs to be called between BeginPlot() and EndPlot()!");
ImGuiID id = ImGui::GetID(label_id);
ImPlotItem* item = gp.CurrentPlot->Items.GetByKey(id);
if (item != NULL && item->Show == false)
return;
ImDrawList& DrawList = *ImGui::GetWindowDrawList();
PushPlotClipRect();
const ImU32 col = gp.Style.Colors[ImPlotCol_ErrorBar].w == -1 ? ImGui::GetColorU32(ImGuiCol_Text) : ImGui::GetColorU32(gp.Style.Colors[ImPlotCol_ErrorBar]);
const bool rend_whisker = gp.Style.ErrorBarSize > 0;
const float half_whisker = gp.Style.ErrorBarSize * 0.5f;
// find data extents
if (gp.FitThisFrame) {
for (int i = 0; i < getter.Count; ++i) {
ImPlotPointErrorH e = getter(i);
FitPoint(ImPlotPoint(e.x, e.y - e.neg_v));
FitPoint(ImPlotPoint(e.x, e.y + e.pos_v));
}
}
for (int i = 0; i < getter.Count; ++i) {
ImPlotPointErrorH e = getter(i);
ImVec2 p1 = PlotToPixels(e.x, e.y - e.neg_v);
ImVec2 p2 = PlotToPixels(e.x, e.y + e.pos_v);
DrawList.AddLine(p1, p2, col, gp.Style.ErrorBarWeight);
if (rend_whisker) {
DrawList.AddLine(p1 - ImVec2(half_whisker, 0), p1 + ImVec2(half_whisker, 0), col, gp.Style.ErrorBarWeight);
DrawList.AddLine(p2 - ImVec2(half_whisker, 0), p2 + ImVec2(half_whisker, 0), col, gp.Style.ErrorBarWeight);
}
}
PopPlotClipRect();
}
//-----------------------------------------------------------------------------
// float
void PlotErrorBarsH(const char* label_id, const float* xs, const float* ys, const float* err_v, const float* err_h, int count, int offset, int stride) {
GetterErrorH<float> getter(xs, ys, err_v, err_v, err_h, err_h, count, offset, stride);
PlotErrorBarsHEx(label_id, getter);
}
void PlotErrorBarsH(const char* label_id, const float* xs, const float* ys, const float* neg_v, const float* pos_v, const float* neg_h, const float* pos_h, int count, int offset, int stride) {
GetterErrorH<float> getter(xs, ys, neg_v, pos_v, neg_h, pos_h, count, offset, stride);
PlotErrorBarsHEx(label_id, getter);
}
//-----------------------------------------------------------------------------
// double
void PlotErrorBarsH(const char* label_id, const double* xs, const double* ys, const double* err_v, const double* err_h, int count, int offset, int stride) {
GetterErrorH<double> getter(xs, ys, err_v, err_v, err_h, err_h, count, offset, stride);
PlotErrorBarsHEx(label_id, getter);
}
void PlotErrorBarsH(const char* label_id, const double* xs, const double* ys, const double* neg_v, const double* pos_v, const double* neg_h, const double* pos_h, int count, int offset, int stride) {
GetterErrorH<double> getter(xs, ys, neg_v, pos_v, neg_h, pos_h, count, offset, stride);
PlotErrorBarsHEx(label_id, getter);
}
//-----------------------------------------------------------------------------
// PLOT PIE CHART
//-----------------------------------------------------------------------------

8
implot_demo.cpp
View File

@ -281,6 +281,7 @@ void ShowDemoWindow(bool* p_open) {
if (ImGui::CollapsingHeader("Error Bars")) {
t_float xs[5] = {1,2,3,4,5};
t_float lin[5] = {8,8,9,7,8};
t_float lin2[5] = { 6,7,6,9,6};
t_float bar[5] = {1,2,5,3,4};
t_float err1[5] = {0.2f, 0.4f, 0.2f, 0.6f, 0.4f};
t_float err2[5] = {0.4f, 0.2f, 0.4f, 0.8f, 0.6f};
@ -295,6 +296,13 @@ void ShowDemoWindow(bool* p_open) {
ImPlot::PlotLine("Line", xs, lin, 5);
ImPlot::PopStyleVar(2);
ImPlot::PopStyleColor();
ImPlot::PushStyleVar(ImPlotStyleVar_Marker, ImPlotMarker_Square);
ImPlot::PushStyleVar(ImPlotStyleVar_MarkerSize, 3);
ImPlot::PushStyleColor(ImPlotCol_ErrorBar, ImVec4(0, 1, 0, 1));
ImPlot::PlotErrorBarsH("Line##ErrorBarH", xs, lin2, err1, err2, 5);
ImPlot::PlotLine("Line##ErrorBarH", xs, lin2, 5);
ImPlot::PopStyleVar(2);
ImPlot::PopStyleColor();
ImPlot::EndPlot();
}
}