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Adjust size of Maxicode symbols when output as EMF

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Size and position of elements in EMF files is stored as an integer, therefore Maxicode does not render properly
Increasing scale for these images ensures proper rendering
Fixes #185 reported by Alex Roy
This commit is contained in:
Robin Stuart 2020-04-01 20:01:02 +01:00
parent b4182cbc19
commit 94fe73ebfd
1 changed files with 8 additions and 3 deletions
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11
backend/vector.c
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@ -1,7 +1,7 @@
/* vector.c - Creates vector image objects /* vector.c - Creates vector image objects
libzint - the open source barcode library libzint - the open source barcode library
Copyright (C) 2018 Robin Stuart <rstuart114@gmail.com> Copyright (C) 2018 - 2020 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions modification, are permitted provided that the following conditions
@ -193,13 +193,18 @@ INTERNAL void vector_free(struct zint_symbol *symbol) {
} }
} }
static void vector_scale(struct zint_symbol *symbol) { static void vector_scale(struct zint_symbol *symbol, int file_type) {
struct zint_vector_rect *rect; struct zint_vector_rect *rect;
struct zint_vector_hexagon *hex; struct zint_vector_hexagon *hex;
struct zint_vector_circle *circle; struct zint_vector_circle *circle;
struct zint_vector_string *string; struct zint_vector_string *string;
float scale = symbol->scale * 2.0f; float scale = symbol->scale * 2.0f;
if ((file_type == OUT_EMF_FILE) && (symbol->symbology == BARCODE_MAXICODE)) {
// Increase size to overcome limitations in EMF file format
scale *= 20;
}
symbol->vector->width *= scale; symbol->vector->width *= scale;
symbol->vector->height *= scale; symbol->vector->height *= scale;
@ -820,7 +825,7 @@ INTERNAL int plot_vector(struct zint_symbol *symbol, int rotate_angle, int file_
vector_reduce_rectangles(symbol); vector_reduce_rectangles(symbol);
vector_scale(symbol); vector_scale(symbol, file_type);
switch (file_type) { switch (file_type) {
case OUT_EPS_FILE: case OUT_EPS_FILE: