plotting_util.cpp File Reference

Implementation of functions for internal implementation of plotting. More...

#include "func_sketch/plotter/plotting_util.h"
#include <cassert>
#include <cmath>
#include <opencv2/imgproc.hpp>
#include "func_sketch/common_types.h"
#include "func_sketch/exceptions.h"

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Functions
cv::Scalar	func_sketch::plotter::convert_color (const RGBColor &color)
	Convert a color from RGBColor to cv::Scalar.
cv::Point	func_sketch::plotter::convert_position (const Point &position, const PlotRange &range, const PlotConfig &config, int left_margin, const cv::MatSize &size)
	Convert a position from plot coordinates to image coordinates.
cv::Point	func_sketch::plotter::convert_position_with_shift (const Point &position, const PlotRange &range, const PlotConfig &config, int left_margin, const cv::MatSize &size, int shift)
	Convert a position from plot coordinates to image coordinates with shift.
void	func_sketch::plotter::write_line (Image &image, const Point &start_point, const Point &end_point, const cv::Scalar &color, int line_width, const PlotRange &range, const PlotConfig &config, int left_margin)
	Write a line on an image.
bool	func_sketch::plotter::try_clamp_infinity (Point &point, const PlotRange &range)
	Try to clamp a point with infinity to the range.
Point	func_sketch::plotter::compute_intersection_with_vertical_line (const Point &point1, const Point &point2, Real x_value)
	Compute the intersection of a line segment with a vertical line.
Point	func_sketch::plotter::compute_intersection_with_horizontal_line (const Point &point1, const Point &point2, Real y_value)
	Compute the intersection of a line segment with a horizontal line.
Point	func_sketch::plotter::compute_intersection_with_range (const Point &point_in_range, const Point &point_out_of_range, const PlotRange &range)
	Compute the intersection of a line segment with the boundary of the plot range.

Detailed Description

Implementation of functions for internal implementation of plotting.

Definition in file plotting_util.cpp.

Function Documentation

convert_color()

cv::Scalar func_sketch::plotter::convert_color ( const RGBColor & color )

nodiscard

Convert a color from RGBColor to cv::Scalar.

Parameters

[in]

color

Color to convert.

Returns

Converted color.

Note

This function assumes that the image is in RGB format, not BGR format as in default of OpenCV.

Definition at line 32 of file plotting_util.cpp.

convert_position()

cv::Point func_sketch::plotter::convert_position ( const Point & position, const PlotRange & range, const PlotConfig & config, int left_margin, const cv::MatSize & size )

nodiscard

Convert a position from plot coordinates to image coordinates.

Parameters

[in]	position	Position in plot coordinates.
[in]	range	Range of plots.
[in]	config	Configuration of plots.
[in]	left_margin	Left margin of plots in pixels. (This value is used over the value in config because tuning of the left margin is needed.)
[in]	size	Size of the image.

Returns

Converted position in image coordinates.

Definition at line 37 of file plotting_util.cpp.

convert_position_with_shift()

cv::Point func_sketch::plotter::convert_position_with_shift ( const Point & position, const PlotRange & range, const PlotConfig & config, int left_margin, const cv::MatSize & size, int shift )

nodiscard

Convert a position from plot coordinates to image coordinates with shift.

Parameters

[in]	position	Position in plot coordinates.
[in]	range	Range of plots.
[in]	config	Configuration of plots.
[in]	left_margin	Left margin of plots in pixels. (This value is used over the value in config because tuning of the left margin is needed.)
[in]	size	Size of the image.
[in]	shift	Number of fractional bits in the image coordinates.

Returns

Converted position in image coordinates.

Definition at line 72 of file plotting_util.cpp.

write_line()

void func_sketch::plotter::write_line	(	Image &	image,
		const Point &	start_point,
		const Point &	end_point,
		const cv::Scalar &	color,
		int	line_width,
		const PlotRange &	range,
		const PlotConfig &	config,
		int	left_margin )

Write a line on an image.

Parameters

[out]	image	Image to write on.
[in]	start_point	Starting point of the line.
[in]	end_point	Ending point of the line.
[in]	color	Color of the line.
[in]	line_width	Width of the line.
[in]	range	Range of plots.
[in]	config	Configuration of plots.
[in]	left_margin	Left margin of plots in pixels. (This value is used over the value in config because tuning of the left margin is needed.)

Definition at line 101 of file plotting_util.cpp.

try_clamp_infinity()

bool func_sketch::plotter::try_clamp_infinity ( Point & point, const PlotRange & range )

nodiscard

Try to clamp a point with infinity to the range.

Parameters

[in,out]	point	Point to clamp.
[in]	range	Range to clamp the point to.

Return values

true	The point was clamped or the point was finite.
false	The point could not be clamped because it was infinite in both coordinates.

Note

This function does not check for NaN values.

Definition at line 114 of file plotting_util.cpp.

compute_intersection_with_vertical_line()

Point func_sketch::plotter::compute_intersection_with_vertical_line	(	const Point &	point1,
		const Point &	point2,
		Real	x_value )

Compute the intersection of a line segment with a vertical line.

Parameters

[in]	point1	First point of the line segment.
[in]	point2	Second point of the line segment.
[in]	x_value	X-coordinate of the vertical line.

Returns

Intersection point of the line segment with the vertical line.

Definition at line 137 of file plotting_util.cpp.

compute_intersection_with_horizontal_line()

Point func_sketch::plotter::compute_intersection_with_horizontal_line	(	const Point &	point1,
		const Point &	point2,
		Real	y_value )

Compute the intersection of a line segment with a horizontal line.

Parameters

[in]	point1	First point of the line segment.
[in]	point2	Second point of the line segment.
[in]	y_value	Y-coordinate of the horizontal line.

Returns

Intersection point of the line segment with the horizontal line.

Definition at line 153 of file plotting_util.cpp.

compute_intersection_with_range()

Point func_sketch::plotter::compute_intersection_with_range ( const Point & point_in_range, const Point & point_out_of_range, const PlotRange & range )

nodiscard

Compute the intersection of a line segment with the boundary of the plot range.

Parameters

[in]	point_in_range	Point inside the range.
[in]	point_out_of_range	Point outside the range.
[in]	range	Range of plots.

Returns

Intersection point of the line segment with the range.

Note

This function assumes that all coordinates are finite and that the line segment intersects with the boundary of the range.

Definition at line 161 of file plotting_util.cpp.