diff options
author | Alex Merry <dev@randomguy3.me.uk> | 2013-08-27 15:25:26 +0100 |
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committer | Alex Merry <dev@randomguy3.me.uk> | 2013-08-27 15:25:26 +0100 |
commit | ad6c6441f4482e12722ae17283dd7a470e3fdcde (patch) | |
tree | 81fcf3677139906df6c9932a143d972f01713906 /tikzit/src/common/util.h | |
parent | ea86afc07d645c1ba79800fed7c005d444d60f80 (diff) |
Make sure we never output numbers in scientific notation
Converting NSNumber to a string raises the possibility of outputing a
number like 2.2e-8, as it essentially uses the %g format specifier.
This then cannot be parsed.
Since there is no built-in specifier for outputing floats with variable
precision (ie: removing any trailing zeros), I cooked up a function to
do just that.
Currently set the maximum precision at 4dp (our normal grid layout only
makes use of 2dp).
Diffstat (limited to 'tikzit/src/common/util.h')
-rw-r--r-- | tikzit/src/common/util.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tikzit/src/common/util.h b/tikzit/src/common/util.h index f527820..b34f25d 100644 --- a/tikzit/src/common/util.h +++ b/tikzit/src/common/util.h @@ -191,4 +191,11 @@ NSString *alphaHex(unsigned short sh); const char *find_start_of_nth_line (const char * string, int line); -// vi:ft=objc:noet:ts=4:sts=4:sw=4 +/*! + @brief Formats a CGFloat as a string, removing trailing zeros + @detail Unlike formatting an NSNumber, or using %g, it will never + produce scientific notation (like "2.00e2"). Unlike %f, + it will not include unnecessary trailing zeros. + */ +NSString *formatFloat(CGFloat f, int maxdps); + |