#ifndef INKSCAPE_UNIT_CONSTANTS_H #define INKSCAPE_UNIT_CONSTANTS_H // 72 points per inch divided by the SVG-recommended value of 90 pixels per inch for computer screen // For now it is constant throughout Inkscape, later we may make it changeable. // Ideally this should be the only place to change it, but this is not guaranteed (be careful!) #define DEVICESCALE 0.8 #define PT_PER_IN 72.0 #define PT_PER_PX DEVICESCALE #define PT_PER_PC 12.0 #define PX_PER_PT (1/DEVICESCALE) #define PX_PER_PC (PX_PER_PT * PT_PER_PC) #define PX_PER_IN (PT_PER_IN / PT_PER_PX) #define PC_PER_IN (PT_PER_IN / PT_PER_PC) #define M_PER_IN 0.0254 #define M_PER_PX (M_PER_IN / PX_PER_IN) #define CM_PER_IN 2.54 #define MM_PER_IN 25.4 #define MM_PER_MM 1.0 #define MM_PER_CM 10.0 #define MM_PER_M 1000.0 #define IN_PER_PT (1 / PT_PER_IN) #define IN_PER_PX (1 / PX_PER_IN) #define IN_PER_CM (1 / CM_PER_IN) #define IN_PER_MM (1 / MM_PER_IN) #define IN_PER_FT 12.0 #define FT_PER_IN (1 / IN_PER_FT) #define PT_PER_CM (PT_PER_IN / CM_PER_IN) #define PX_PER_CM (PX_PER_IN / CM_PER_IN) #define M_PER_PT (M_PER_IN / PT_PER_IN) #define PT_PER_M (PT_PER_IN / M_PER_IN) #define PX_PER_M (PX_PER_IN / M_PER_IN) #define CM_PER_PT (CM_PER_IN / PT_PER_IN) #define CM_PER_PX (CM_PER_IN / PX_PER_IN) #define MM_PER_PT (MM_PER_IN / PT_PER_IN) #define PT_PER_MM (PT_PER_IN / MM_PER_IN) #define PX_PER_MM (PX_PER_IN / MM_PER_IN) #define MM_PER_PX (MM_PER_IN / PX_PER_IN) #define PX_PER_FT (PX_PER_IN / FT_PER_IN) #define PT_PER_PT 1.0 #define PC_PER_PC 1.0 #define IN_PER_IN 1.0 #define PX_PER_PX 1.0 #define FT_PER_FT 1.0 #endif /* !INKSCAPE_UNIT_CONSTANTS_H */