Differences

This shows you the differences between two versions of the page.

--- lua_scripting_tips [2025/03/09 10:39]
stanzurek [Automatic limits in colour maps]
+++ lua_scripting_tips [2025/03/09 10:59] (current)
stanzurek [Rounding in LUA]
@@ Line 132: / Line 132: @@
 Rounding does not appear to be immediately available in LUA 4.0. Teh
-<code>
+<code lua>
-var_input = 0.249000000000003
+function round_LUA(var_input, round_precision)
-round = 0.1
-var_floor = floor(var_input/round)*round
+var_floor = floor(var_input/round_precision)*round_precision
-var_ceil = ceil(var_input/round)*round
+var_ceil = ceil(var_input/round_precision)*round_precision
 var_rounded = var_floor
-if (var_input > (var_floor + 5*round/10) ) then
+if (var_input > (var_floor + 5*round_precision/10) ) then
 var_rounded = var_ceil
 end
+return(var_rounded)
+end -- end function
+var_input = 123.44900000003   -- input variable to be rounded
+round_precision = 10     -- rounding precision, use: 100, 10, 1, 0.1, 0.01 etc.
+var_output = round_LUA(var_input, round_precision)
 print(var_input)
-print(var_rounded)
+print(var_output)
 </code>

Unofficial FEMM documentation by Dr Stan Zurek