core/vcsl/vcsl_angle.cxx Source File

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00001 // This is core/vcsl/vcsl_angle.cxx
00002 #include "vcsl_angle.h"
00003 #include <vcsl/vcsl_radian.h>
00004 
00005 //---------------------------------------------------------------------------
00006 // Is `new_unit' a compatible unit for the dimension ?
00007 //---------------------------------------------------------------------------
00008 bool vcsl_angle::compatible_unit(vcsl_unit_sptr const& new_unit) const
00009 {
00010   return new_unit->cast_to_angle_unit()!=0;
00011 }
00012 
00013 vcsl_unit_sptr vcsl_angle::standard_unit() const
00014 {
00015   return vcsl_radian::instance().ptr();
00016 }
00017 
00018 //---------------------------------------------------------------------------
00019 // Return the reference to the unique vcsl_angle object
00020 //---------------------------------------------------------------------------
00021 vcsl_angle_sptr vcsl_angle::instance()
00022 {
00023   static vcsl_angle_sptr instance_=new vcsl_angle;
00024   return instance_;
00025 }