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implot/implot.h
2020-07-28 22:22:37 -05:00

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C++

// 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 v0.4 WIP
#pragma once
#include "imgui.h"
//-----------------------------------------------------------------------------
// Basic types and flags
//-----------------------------------------------------------------------------
typedef int ImPlotFlags;
typedef int ImPlotAxisFlags;
typedef int ImPlotCol;
typedef int ImPlotStyleVar;
typedef int ImPlotMarker;
typedef int ImPlotColormap;
// Options for plots.
enum ImPlotFlags_ {
ImPlotFlags_MousePos = 1 << 0, // the mouse position, in plot coordinates, will be displayed in the bottom-right
ImPlotFlags_Legend = 1 << 1, // a legend will be displayed in the top-left
ImPlotFlags_Highlight = 1 << 2, // plot items will be highlighted when their legend entry is hovered
ImPlotFlags_BoxSelect = 1 << 3, // the user will be able to box-select with right-mouse
ImPlotFlags_Query = 1 << 4, // the user will be able to draw query rects with middle-mouse
ImPlotFlags_ContextMenu = 1 << 5, // the user will be able to open a context menu with double-right click
ImPlotFlags_Crosshairs = 1 << 6, // the default mouse cursor will be replaced with a crosshair when hovered
ImPlotFlags_AntiAliased = 1 << 7, // plot lines will be software anti-aliased (not recommended, prefer MSAA)
ImPlotFlags_NoChild = 1 << 8, // a child window region will not be used to capture mouse scroll (can boost performance for single ImGui window applications)
ImPlotFlags_YAxis2 = 1 << 9, // enable a 2nd y-axis
ImPlotFlags_YAxis3 = 1 << 10, // enable a 3rd y-axis
ImPlotFlags_Default = ImPlotFlags_MousePos | ImPlotFlags_Legend | ImPlotFlags_Highlight | ImPlotFlags_BoxSelect | ImPlotFlags_ContextMenu
};
// Options for plot axes (X and Y).
enum ImPlotAxisFlags_ {
ImPlotAxisFlags_GridLines = 1 << 0, // grid lines will be displayed
ImPlotAxisFlags_TickMarks = 1 << 1, // tick marks will be displayed for each grid line
ImPlotAxisFlags_TickLabels = 1 << 2, // text labels will be displayed for each grid line
ImPlotAxisFlags_Invert = 1 << 3, // the axis will be inverted
ImPlotAxisFlags_LockMin = 1 << 4, // the axis minimum value will be locked when panning/zooming
ImPlotAxisFlags_LockMax = 1 << 5, // the axis maximum value will be locked when panning/zooming
ImPlotAxisFlags_LogScale = 1 << 6, // a logartithmic (base 10) axis scale will be used
ImPlotAxisFlags_Scientific = 1 << 7, // scientific notation will be used for tick labels if displayed (WIP, not very good yet)
ImPlotAxisFlags_Default = ImPlotAxisFlags_GridLines | ImPlotAxisFlags_TickMarks | ImPlotAxisFlags_TickLabels,
ImPlotAxisFlags_Auxiliary = ImPlotAxisFlags_Default & ~ImPlotAxisFlags_GridLines,
};
// Plot styling colors.
enum ImPlotCol_ {
ImPlotCol_Line, // plot line/outline color (defaults to next unused color in current colormap)
ImPlotCol_Fill, // plot fill color for bars (defaults to the current line color)
ImPlotCol_MarkerOutline, // marker outline color (defaults to the current line color)
ImPlotCol_MarkerFill, // marker fill color (defaults to the current line color)
ImPlotCol_ErrorBar, // error bar color (defaults to ImGuiCol_Text)
ImPlotCol_FrameBg, // plot frame background color (defaults to ImGuiCol_FrameBg)
ImPlotCol_PlotBg, // plot area background color (defaults to ImGuiCol_WindowBg)
ImPlotCol_PlotBorder, // plot area border color (defaults to ImGuiCol_Text)
ImPlotCol_XAxis, // x-axis grid/label color (defaults to 25% ImGuiCol_Text)
ImPlotCol_YAxis, // y-axis grid/label color (defaults to 25% ImGuiCol_Text)
ImPlotCol_YAxis2, // 2nd y-axis grid/label color (defaults to 25% ImGuiCol_Text)
ImPlotCol_YAxis3, // 3rd y-axis grid/label color (defaults to 25% ImGuiCol_Text)
ImPlotCol_Selection, // box-selection color (defaults to yellow)
ImPlotCol_Query, // box-query color (defaults to green)
ImPlotCol_COUNT
};
// Plot styling variables.
enum ImPlotStyleVar_ {
ImPlotStyleVar_LineWeight, // float, line weight in pixels
ImPlotStyleVar_Marker, // int, marker specification
ImPlotStyleVar_MarkerSize, // float, marker size in pixels (roughly the marker's "radius")
ImPlotStyleVar_MarkerWeight, // float, outline weight of markers in pixels
ImPlotStyleVar_FillAlpha, // float, alpha modifier applied to all plot item fills
ImPlotStyleVar_ErrorBarSize, // float, error bar whisker width in pixels
ImPlotStyleVar_ErrorBarWeight, // float, error bar whisker weight in pixels
ImPlotStyleVar_DigitalBitHeight, // float, digital channels bit height (at 1) in pixels
ImPlotStyleVar_DigitalBitGap, // float, digital channels bit padding gap in pixels
ImPlotStyleVar_COUNT
};
// Marker specifications. You can combine this with binary OR, e.g. ImPlotMarker_Circle | ImPlotMarker_Cross.
enum ImPlotMarker_ {
ImPlotMarker_None = 1 << 0, // no marker
ImPlotMarker_Circle = 1 << 1, // a circle marker will be rendered at each point
ImPlotMarker_Square = 1 << 2, // a square maker will be rendered at each point
ImPlotMarker_Diamond = 1 << 3, // a diamond marker will be rendered at each point
ImPlotMarker_Up = 1 << 4, // an upward-pointing triangle marker will up rendered at each point
ImPlotMarker_Down = 1 << 5, // an downward-pointing triangle marker will up rendered at each point
ImPlotMarker_Left = 1 << 6, // an leftward-pointing triangle marker will up rendered at each point
ImPlotMarker_Right = 1 << 7, // an rightward-pointing triangle marker will up rendered at each point
ImPlotMarker_Cross = 1 << 8, // a cross marker will be rendered at each point (not filled)
ImPlotMarker_Plus = 1 << 9, // a plus marker will be rendered at each point (not filled)
ImPlotMarker_Asterisk = 1 << 10, // a asterisk marker will be rendered at each point (not filled)
};
// Built-in colormaps
enum ImPlotColormap_ {
ImPlotColormap_Default = 0, // ImPlot default colormap (n=10)
ImPlotColormap_Dark = 1, // a.k.a. matplotlib "Set1" (n=9)
ImPlotColormap_Pastel = 2, // a.k.a. matplotlib "Pastel1" (n=9)
ImPlotColormap_Paired = 3, // a.k.a. matplotlib "Paired" (n=12)
ImPlotColormap_Viridis = 4, // a.k.a. matplotlib "viridis" (n=11)
ImPlotColormap_Plasma = 5, // a.k.a. matplotlib "plasma" (n=11)
ImPlotColormap_Hot = 6, // a.k.a. matplotlib/MATLAB "hot" (n=11)
ImPlotColormap_Cool = 7, // a.k.a. matplotlib/MATLAB "cool" (n=11)
ImPlotColormap_Pink = 8, // a.k.a. matplotlib/MATLAB "pink" (n=11)
ImPlotColormap_Jet = 9, // a.k.a. MATLAB "jet" (n=11)
ImPlotColormap_COUNT
};
// Double precision version of ImVec2 used by ImPlot. Extensible by end users.
struct ImPlotPoint {
double x, y;
ImPlotPoint() { x = y = 0.0; }
ImPlotPoint(double _x, double _y) { x = _x; y = _y; }
double operator[] (size_t idx) const { return (&x)[idx]; }
double& operator[] (size_t idx) { return (&x)[idx]; }
#ifdef IMPLOT_POINT_CLASS_EXTRA
IMPLOT_POINT_CLASS_EXTRA // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImPlotPoint.
#endif
};
// A range defined by a min/max value. Used for plot axes ranges.
struct ImPlotRange {
double Min, Max;
ImPlotRange();
bool Contains(double value) const;
double Size() const;
};
// Combination of two ranges for X and Y axes.
struct ImPlotLimits {
ImPlotRange X, Y;
ImPlotLimits();
bool Contains(const ImPlotPoint& p) const;
bool Contains(double x, double y) const;
};
// Plot style structure
struct ImPlotStyle {
float LineWeight; // = 1, line weight in pixels
ImPlotMarker Marker; // = ImPlotMarker_None, marker specification
float MarkerSize; // = 4, marker size in pixels (roughly the marker's "radius")
float MarkerWeight; // = 1, outline weight of markers in pixels
float FillAlpha; // = 1, alpha modifier applied to plot fills
float ErrorBarSize; // = 5, error bar whisker width in pixels
float ErrorBarWeight; // = 1.5, error bar whisker weight in pixels
float DigitalBitHeight; // = 8, digital channels bit height (at y = 1.0f) in pixels
float DigitalBitGap; // = 4, digital channels bit padding gap in pixels
ImVec4 Colors[ImPlotCol_COUNT]; // array of plot specific colors
ImPlotStyle();
};
// Input mapping structure, default values listed in the comments.
struct ImPlotInputMap {
ImGuiMouseButton PanButton; // LMB enables panning when held
ImGuiKeyModFlags PanMod; // none optional modifier that must be held for panning
ImGuiMouseButton FitButton; // LMB fits visible data when double clicked
ImGuiMouseButton ContextMenuButton; // RMB opens plot context menu (if enabled) when double clicked
ImGuiMouseButton BoxSelectButton; // RMB begins box selection when pressed and confirms selection when released
ImGuiKeyModFlags BoxSelectMod; // none optional modifier that must be held for box selection
ImGuiMouseButton BoxSelectCancelButton; // LMB cancels active box selection when pressed
ImGuiMouseButton QueryButton; // MMB begins query selection when pressed and end query selection when released
ImGuiKeyModFlags QueryMod; // none optional modifier that must be held for query selection
ImGuiKeyModFlags QueryToggleMod; // Ctrl when held, active box selections turn into queries
ImGuiKeyModFlags HorizontalMod; // Alt expands active box selection/query horizontally to plot edge when held
ImGuiKeyModFlags VerticalMod; // Shift expands active box selection/query vertically to plot edge when held
ImPlotInputMap();
};
//-----------------------------------------------------------------------------
// Begin/End Plot
//-----------------------------------------------------------------------------
namespace ImPlot {
// Starts a 2D plotting context. If this function returns true, EndPlot() must
// be called, e.g. "if (BeginPlot(...)) { ... EndPlot(); }"". #title_id must
// be unique. If you need to avoid ID collisions or don't want to display a
// title in the plot, use double hashes (e.g. "MyPlot##Hidden"). If #x_label
// and/or #y_label are provided, axes labels will be displayed.
bool BeginPlot(const char* title_id,
const char* x_label = NULL,
const char* y_label = NULL,
const ImVec2& size = ImVec2(-1,0),
ImPlotFlags flags = ImPlotFlags_Default,
ImPlotAxisFlags x_flags = ImPlotAxisFlags_Default,
ImPlotAxisFlags y_flags = ImPlotAxisFlags_Default,
ImPlotAxisFlags y2_flags = ImPlotAxisFlags_Auxiliary,
ImPlotAxisFlags y3_flags = ImPlotAxisFlags_Auxiliary);
// Only call EndPlot() if BeginPlot() returns true! Typically called at the end
// of an if statement conditioned on BeginPlot().
void EndPlot();
//-----------------------------------------------------------------------------
// Plot Items
//-----------------------------------------------------------------------------
// Plots a standard 2D line plot.
void PlotLine(const char* label_id, const float* values, int count, int offset = 0, int stride = sizeof(float));
void PlotLine(const char* label_id, const double* values, int count, int offset = 0, int stride = sizeof(double));
void PlotLine(const char* label_id, const float* xs, const float* ys, int count, int offset = 0, int stride = sizeof(float));
void PlotLine(const char* label_id, const double* xs, const double* ys, int count, int offset = 0, int stride = sizeof(double));
void PlotLine(const char* label_id, const ImVec2* data, int count, int offset = 0);
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 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));
void PlotScatter(const char* label_id, const float* xs, const float* ys, int count, int offset = 0, int stride = sizeof(float));
void PlotScatter(const char* label_id, const double* xs, const double* ys, int count, int offset = 0, int stride = sizeof(double));
void PlotScatter(const char* label_id, const ImVec2* data, int count, int offset = 0);
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));
void PlotBars(const char* label_id, const float* xs, const float* ys, int count, float width, int offset = 0, int stride = sizeof(float));
void PlotBars(const char* label_id, const double* xs, const double* ys, int count, double width, int offset = 0, int stride = sizeof(double));
void PlotBars(const char* label_id, ImPlotPoint (*getter)(void* data, int idx), void* data, int count, double width, int offset = 0);
// Plots a horizontal bar graph.
void PlotBarsH(const char* label_id, const float* values, int count, float height = 0.67f, float shift = 0, int offset = 0, int stride = sizeof(float));
void PlotBarsH(const char* label_id, const double* values, int count, double height = 0.67f, double shift = 0, int offset = 0, int stride = sizeof(double));
void PlotBarsH(const char* label_id, const float* xs, const float* ys, int count, float height, int offset = 0, int stride = sizeof(float));
void PlotBarsH(const char* label_id, const double* xs, const double* ys, int count, double height, int offset = 0, int stride = sizeof(double));
void PlotBarsH(const char* label_id, ImPlotPoint (*getter)(void* data, int idx), void* data, int count, double height, int offset = 0);
// Plots vertical error bar. The label_id should match the label_id of the associated line or bar plot.
void PlotErrorBars(const char* label_id, const float* xs, const float* ys, const float* err, int count, int offset = 0, int stride = sizeof(float));
void PlotErrorBars(const char* label_id, const double* xs, const double* ys, const double* err, int count, int offset = 0, int stride = sizeof(double));
void PlotErrorBars(const char* label_id, const float* xs, const float* ys, const float* neg, const float* pos, int count, int offset = 0, int stride = sizeof(float));
void PlotErrorBars(const char* label_id, const double* xs, const double* ys, const double* neg, const double* pos, int count, int offset = 0, int stride = sizeof(double));
// Plots horizontal error bars. The label_id should match the label_id of the associated line or bar plot.
void PlotErrorBarsH(const char* label_id, const float* xs, const float* ys, const float* err, int count, int offset = 0, int stride = sizeof(float));
void PlotErrorBarsH(const char* label_id, const double* xs, const double* ys, const double* err, int count, int offset = 0, int stride = sizeof(double));
void PlotErrorBarsH(const char* label_id, const float* xs, const float* ys, const float* neg, const float* pos, int count, int offset = 0, int stride = sizeof(float));
void PlotErrorBarsH(const char* label_id, const double* xs, const double* ys, const double* neg, const double* pos, int count, int offset = 0, int stride = sizeof(double));
// Plots a pie chart. If the sum of values > 1 or normalize is true, each value will be normalized. Center and radius are in plot coordinates.
void PlotPieChart(const char** label_ids, const float* values, int count, float x, float y, float radius, bool normalize = false, const char* label_fmt = "%.1f", float angle0 = 90);
void PlotPieChart(const char** label_ids, const double* values, int count, double x, double y, double radius, bool normalize = false, const char* label_fmt = "%.1f", double angle0 = 90);
// Plots a 2D heatmap chart. Values are expected to be in row-major order. label_fmt can be set to NULL for no labels.
void PlotHeatmap(const char* label_id, const float* values, int rows, int cols, float scale_min, float scale_max, const char* label_fmt = "%.1f", const ImPlotPoint& bounds_min = ImPlotPoint(0,0), const ImPlotPoint& bounds_max = ImPlotPoint(1,1));
void PlotHeatmap(const char* label_id, const double* values, int rows, int cols, double scale_min, double scale_max, const char* label_fmt = "%.1f", const ImPlotPoint& bounds_min = ImPlotPoint(0,0), const ImPlotPoint& bounds_max = ImPlotPoint(1,1));
// Plots digital data.
void PlotDigital(const char* label_id, const float* xs, const float* ys, int count, int offset = 0, int stride = sizeof(float));
void PlotDigital(const char* label_id, const double* xs, const double* ys, int count, int offset = 0, int stride = sizeof(double));
void PlotDigital(const char* label_id, ImPlotPoint (*getter)(void* data, int idx), void* data, int count, int offset = 0);
// Plots a text label at point x,y.
void PlotText(const char* text, float x, float y, bool vertical = false, const ImVec2& pixel_offset = ImVec2(0,0));
void PlotText(const char* text, double x, double y, bool vertical = false, const ImVec2& pixel_offset = ImVec2(0,0));
//-----------------------------------------------------------------------------
// Plot Queries
//-----------------------------------------------------------------------------
// Returns true if the plot area in the current plot is hovered.
bool IsPlotHovered();
// Returns true if the XAxis plot area in the current plot is hovered.
bool IsPlotXAxisHovered();
// Returns true if the YAxis[n] plot area in the current plot is hovered.
bool IsPlotYAxisHovered(int y_axis = 0);
// Returns the mouse position in x,y coordinates of the current plot. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImPlotPoint GetPlotMousePos(int y_axis = -1);
// Returns the current plot axis range. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImPlotLimits GetPlotLimits(int y_axis = -1);
// Returns true if the current plot is being queried.
bool IsPlotQueried();
// Returns the current plot query bounds.
ImPlotLimits GetPlotQuery(int y_axis = -1);
// Returns true if a plot item legend entry is hovered.
bool IsLegendEntryHovered(const char* label_id);
//-----------------------------------------------------------------------------
// Plot Input Mapping
//-----------------------------------------------------------------------------
// Allows changing how keyboard/mouse interaction works.
ImPlotInputMap& GetInputMap();
//-----------------------------------------------------------------------------
// Plot Styling and Behaviour
//-----------------------------------------------------------------------------
// Provides access to plot style structure for permanant modifications to colors, sizes, etc.
ImPlotStyle& GetStyle();
// Special color used to indicate that a style color should be deduced automatically from defaults or colormaps.
#define IMPLOT_COL_AUTO ImVec4(0,0,0,-1)
// Temporarily modify a plot color. Don't forget to call PopStyleColor!
void PushStyleColor(ImPlotCol idx, ImU32 col);
// Temporarily modify a plot color. Don't forget to call PopStyleColor!
void PushStyleColor(ImPlotCol idx, const ImVec4& col);
// Undo temporary color modification.
void PopStyleColor(int count = 1);
// Temporarily modify a style variable of float type. Don't forget to call PopStyleVar!
void PushStyleVar(ImPlotStyleVar idx, float val);
// Temporarily modify a style variable of int type. Don't forget to call PopStyleVar!
void PushStyleVar(ImPlotStyleVar idx, int val);
// Undo temporary style modification.
void PopStyleVar(int count = 1);
// Switch to one of the built-in colormaps. If samples is greater than 1, the map will be linearly resampled.
void SetColormap(ImPlotColormap colormap, int samples = 0);
// Sets a custom colormap.
void SetColormap(const ImVec4* colors, int num_colors);
// Returns the size of the current colormap.
int GetColormapSize();
// Returns a color from the Color map given an index >= 0 (modulo will be performed)
ImVec4 GetColormapColor(int index);
// Linearly interpolates a color from the current colormap given t between 0 and 1.
ImVec4 LerpColormap(float t);
//-----------------------------------------------------------------------------
// Plot Utils
//-----------------------------------------------------------------------------
// Set the axes range limits of the next plot. Call right before BeginPlot(). If ImGuiCond_Always is used, the axes limits will be locked.
void SetNextPlotLimits(double x_min, double x_max, double y_min, double y_max, ImGuiCond cond = ImGuiCond_Once);
// Set the X axis range limits of the next plot. Call right before BeginPlot(). If ImGuiCond_Always is used, the X axis limits will be locked.
void SetNextPlotLimitsX(double x_min, double x_max, ImGuiCond cond = ImGuiCond_Once);
// Set the Y axis range limits of the next plot. Call right before BeginPlot(). If ImGuiCond_Always is used, the Y axis limits will be locked.
void SetNextPlotLimitsY(double y_min, double y_max, ImGuiCond cond = ImGuiCond_Once, int y_axis = 0);
// Set the X axis ticks and optionally the labels for the next plot.
void SetNextPlotTicksX(const double* values, int n_ticks, const char** labels = NULL, bool show_default = false);
void SetNextPlotTicksX(double x_min, double x_max, int n_ticks, const char** labels = NULL, bool show_default = false);
// Set the Y axis ticks and optionally the labels for the next plot.
void SetNextPlotTicksY(const double* values, int n_ticks, const char** labels = NULL, bool show_default = false, int y_axis = 0);
void SetNextPlotTicksY(double y_min, double y_max, int n_ticks, const char** labels = NULL, bool show_default = false, int y_axis = 0);
// Select which Y axis will be used for subsequent plot elements. The default is '0', or the first (left) Y axis.
void SetPlotYAxis(int y_axis);
// Get the current Plot position (top-left) in pixels.
ImVec2 GetPlotPos();
// Get the curent Plot size in pixels.
ImVec2 GetPlotSize();
// Convert pixels to a position in the current plot's coordinate system. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImPlotPoint PixelsToPlot(const ImVec2& pix, int y_axis = -1);
// Convert a position in the current plot's coordinate system to pixels. A negative y_axis uses the current value of SetPlotYAxis (0 initially).
ImVec2 PlotToPixels(const ImPlotPoint& plt, int y_axis = -1);
// Renders a vertical color scale using the current color map
void ShowColormapScale(double scale_min, double scale_max, float height);
// Push clip rect for rendering to current plot area.
void PushPlotClipRect();
// Pop plot clip rect.
void PopPlotClipRect();
//-----------------------------------------------------------------------------
// Demo
//-----------------------------------------------------------------------------
// Shows the ImPlot demo. Add implot_demo.cpp to your sources!
void ShowDemoWindow(bool* p_open = NULL);
} // namespace ImPlot