Demo: PlotLine example displays the average value. (#2759) + extra comments
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index b2b7a7e4..0421443 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -1043,6 +1043,8 @@
ImGui::TreePop();
}
+ // Plot/Graph widgets are currently fairly limited.
+ // Consider writing your own plotting widget, or using a third-party one (see "Wiki->Useful Widgets", or github.com/ocornut/imgui/issues/2747)
if (ImGui::TreeNode("Plots Widgets"))
{
static bool animate = true;
@@ -1066,7 +1068,18 @@
phase += 0.10f*values_offset;
refresh_time += 1.0f/60.0f;
}
- ImGui::PlotLines("Lines", values, IM_ARRAYSIZE(values), values_offset, "avg 0.0", -1.0f, 1.0f, ImVec2(0,80));
+
+ // Plots can display overlay texts
+ // (in this example, we will display an average value)
+ {
+ float average = 0.0f;
+ for (int n = 0; n < IM_ARRAYSIZE(values); n++)
+ average += values[n];
+ average /= (float)IM_ARRAYSIZE(values);
+ char overlay[32];
+ sprintf(overlay, "avg %f", average);
+ ImGui::PlotLines("Lines", values, IM_ARRAYSIZE(values), values_offset, overlay, -1.0f, 1.0f, ImVec2(0,80));
+ }
ImGui::PlotHistogram("Histogram", arr, IM_ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0,80));
// Use functions to generate output
