Differential D6807 Diff 22906 extern/opennurbs/opennurbs_parse_angle.cpp

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extern/opennurbs/opennurbs_parse_angle.cpp

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				/* $NoKeywords: $ */
				/*
				//
				// Copyright (c) 1993-2013 Robert McNeel & Associates. All rights reserved.
				// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert
				// McNeel & Associates.
				//
				// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
				// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF
				// MERCHANTABILITY ARE HEREBY DISCLAIMED.
				//
				// For complete openNURBS copyright information see <http://www.opennurbs.org>.
				//
				////////////////////////////////////////////////////////////////
				*/

				#include "opennurbs.h"

				#if !defined(ON_COMPILING_OPENNURBS)
				// This check is included in all opennurbs source .c and .cpp files to insure
				// ON_COMPILING_OPENNURBS is defined when opennurbs source is compiled.
				// When opennurbs source is being compiled, ON_COMPILING_OPENNURBS is defined
				// and the opennurbs .h files alter what is declared and how it is declared.
				#error ON_COMPILING_OPENNURBS must be defined when compiling opennurbs
				#endif

				int ON_ParseAngleExpression(
				const wchar_t* str,
				int str_count,
				ON_ParseSettings parse_settings,
				const ON::AngleUnitSystem angle_value_unit_system,
				double* angle_value,
				ON_ParseSettings* parse_results,
				ON::AngleUnitSystem* str_angle_unit_system
				)
				{
				ON::AngleUnitSystem parsed_angle_us = ON::AngleUnitSystem::None;

				double x = ON_UNSET_VALUE;
				int parsed_element_count = ON_ParseAngleExpression(
				str,
				str_count,
				parse_settings,
				&x,
				parse_results,
				&parsed_angle_us
				);

				if ( parsed_element_count > 0 )
				{
				if ( parsed_angle_us != angle_value_unit_system
				&& ON::AngleUnitSystem::None != angle_value_unit_system
				&& ON::AngleUnitSystem::None != parsed_angle_us
				)
				{
				double s = ON::AngleUnitScale(parsed_angle_us,angle_value_unit_system);
				x *= s;
				}
				}

				if ( 0 != str_angle_unit_system )
				*str_angle_unit_system = parsed_angle_us;
				if ( 0 != angle_value )
				*angle_value = x;

				return parsed_element_count;
				}

				int ON_ParseAngleRadiansExpression(
				const wchar_t* str,
				int str_count,
				ON::AngleUnitSystem default_str_angle_unit_system,
				double* angle_value_in_radians
				)
				{
				ON_ParseSettings ps(ON_ParseSettings::DefaultSettings);
				ps.SetDefaultAngleUnitSystem(default_str_angle_unit_system);

				int parsed_element_count = ON_ParseAngleExpression(
				str,
				str_count,
				ps,
				ON::AngleUnitSystem::Radians, // specify radians as the unit system for the returned value
				angle_value_in_radians,
				nullptr,
				nullptr
				);

				return parsed_element_count;
				}

				int ON_ParseAngleArcDegreesExpression(
				const wchar_t* str,
				int str_count,
				ON::AngleUnitSystem default_str_angle_unit_system,
				double* angle_value_in_arc_degrees
				)
				{
				ON_ParseSettings ps(ON_ParseSettings::DefaultSettings);
				ps.SetDefaultAngleUnitSystem(default_str_angle_unit_system);

				int parsed_element_count = ON_ParseAngleExpression(
				str,
				str_count,
				ps,
				ON::AngleUnitSystem::Degrees, // specify arc_degrees as the unit system for the returned value
				angle_value_in_arc_degrees,
				nullptr,
				nullptr
				);

				return parsed_element_count;
				}
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