80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
#ifndef CONVERT_TO_BIU_H_
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#define CONVERT_TO_BIU_H_
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#include <config.h>
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/**
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* @file convert_to_biu.h
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*/
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/**
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* @brief some define and functions to convert a value in mils, decimils or mm
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* to the internal unit used in pcbnew, cvpcb or gerbview (nanometer or deci-mil)
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* depending on compile time option
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*/
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/// Scaling factor to convert mils to internal units.
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#if defined(PCBNEW) || defined(CVPCB) || defined(GERBVIEW)
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#if defined(GERBVIEW)
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#define IU_PER_MM 1e5 // Gerbview IU is 10 nanometers.
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#else
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#define IU_PER_MM 1e6 // Pcbnew IU is 1 nanometer.
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#endif
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#define IU_PER_MILS (IU_PER_MM * 0.0254)
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#define IU_PER_DECIMILS (IU_PER_MM * 0.00254)
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/// Convert mils to PCBNEW internal units (iu).
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inline int Mils2iu( int mils )
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{
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double x = mils * IU_PER_MILS;
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return int( x < 0 ? x - 0.5 : x + 0.5 );
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}
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/// Convert deci-mils to PCBNEW internal units (iu).
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inline int DMils2iu( int dmils )
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{
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double x = dmils * IU_PER_DECIMILS;
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return int( x < 0 ? x - 0.5 : x + 0.5 );
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}
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#elif defined (PL_EDITOR)
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#define IU_PER_MM 1e3 // internal units in micron (should be enough)
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#define IU_PER_MILS (IU_PER_MM * 0.0254)
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#define IU_PER_DECIMILS (IU_PER_MM * 0.00254)
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/// Convert mils to page layout editor internal units (iu).
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inline int Mils2iu( int mils )
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{
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double x = mils * IU_PER_MILS;
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return int( x < 0 ? x - 0.5 : x + 0.5 );
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}
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/// Convert deci-mils to page layout editor internal units (iu).
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inline int DMils2iu( int dmils )
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{
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double x = dmils * IU_PER_DECIMILS;
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return int( x < 0 ? x - 0.5 : x + 0.5 );
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}
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#else // Eeschema and anything else.
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#define IU_PER_DECIMILS 0.1
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#define IU_PER_MILS 1.0
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#define IU_PER_MM (IU_PER_MILS / 0.0254)
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inline int Mils2iu( int mils )
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{
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return mils;
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}
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#endif
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/// Convert mm to internal units (iu).
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inline int Millimeter2iu( double mm )
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{
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return (int) ( mm < 0 ? mm * IU_PER_MM - 0.5 : mm * IU_PER_MM + 0.5);
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}
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#endif // CONVERT_TO_BIU_H_
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