fortplot_scales – fortplot

Scale transformation module for coordinate system transformations

This module provides functions for transforming data coordinates using different scale types: linear, logarithmic, and symmetric logarithmic. Follows Single Responsibility Principle by focusing solely on scale transformations.

Uses

- iso_fortran_env

Functions

public function apply_scale_transform(value, scale_type, threshold) result(transformed)

Apply forward scale transformation to a single value

Arguments

Type	Intent		Name
real(kind=wp),	intent(in)	::	value
character(len=*),	intent(in)	::	scale_type
real(kind=wp),	intent(in)	::	threshold

Return Value real(kind=wp)

public function apply_inverse_scale_transform(value, scale_type, threshold) result(original)

Apply inverse scale transformation to recover original value

Arguments

Type	Intent		Name
real(kind=wp),	intent(in)	::	value
character(len=*),	intent(in)	::	scale_type
real(kind=wp),	intent(in)	::	threshold

Return Value real(kind=wp)

public function transform_x_coordinate(x, x_min, x_max, width) result(x_screen)

Transform data x-coordinate to screen coordinate

Arguments

Type	Intent		Name
real(kind=wp),	intent(in)	::	x
real(kind=wp),	intent(in)	::	x_min
real(kind=wp),	intent(in)	::	x_max
integer,	intent(in)	::	width

Return Value real(kind=wp)

public function transform_y_coordinate(y, y_min, y_max, height, invert) result(y_screen)

Transform data y-coordinate to screen coordinate

Arguments

Type	Intent	Optional		Name
real(kind=wp),	intent(in)		::	y
real(kind=wp),	intent(in)		::	y_min
real(kind=wp),	intent(in)		::	y_max
integer,	intent(in)		::	height
logical,	intent(in),	optional	::	invert

Return Value real(kind=wp)

Subroutines

public subroutine clamp_extreme_log_range(data_min, data_max, clamped_min, clamped_max)

Clamp extreme logarithmic ranges to ensure usable plots

Arguments

Type	Intent		Name
real(kind=wp),	intent(in)	::	data_min
real(kind=wp),	intent(in)	::	data_max
real(kind=wp),	intent(out)	::	clamped_min
real(kind=wp),	intent(out)	::	clamped_max

fortplot_scales Module

Contents

Functions

Subroutines

Uses

Functions

public function apply_scale_transform(value, scale_type, threshold) result(transformed)

Arguments

Return Value real(kind=wp)

public function apply_inverse_scale_transform(value, scale_type, threshold) result(original)

Arguments

Return Value real(kind=wp)

public function transform_x_coordinate(x, x_min, x_max, width) result(x_screen)

Arguments

Return Value real(kind=wp)

public function transform_y_coordinate(y, y_min, y_max, height, invert) result(y_screen)

Arguments

Return Value real(kind=wp)

Subroutines

public subroutine clamp_extreme_log_range(data_min, data_max, clamped_min, clamped_max)

Arguments