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openscad
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sign() function suggested by Dan Zuras and implemented by Giles Bathgate 

git-svn-id: http://svn.clifford.at/openscad/trunk@568 b57f626f-c46c-0410-a088-ec61d464b74c
stl_dim
kintel 2010-07-09 09:35:19 +00:00
parent a4fc13fee7
commit b36f7a58dc
1 changed files with 8 additions and 0 deletions
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8
src/func.cc
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@ -117,6 +117,13 @@ Value builtin_abs(const Context *, const QVector<QString>&, const QVector<Value>
return Value();
}
Value builtin_sign(const Context *, const QVector<QString>&, const QVector<Value> &args)
{
if (args.size() == 1 && args[0].type == Value::NUMBER)
return Value((args[0].num<0) ? -1.0 : ((args[0].num>0) ? 1.0 : 0.0));
return Value();
}
Value builtin_min(const Context *, const QVector<QString>&, const QVector<Value> &args)
{
if (args.size() >= 1 && args[0].type == Value::NUMBER) {
@ -292,6 +299,7 @@ Value builtin_lookup(const Context *, const QVector<QString>&, const QVector<Val
void initialize_builtin_functions()
{
builtin_functions["abs"] = new BuiltinFunction(&builtin_abs);
builtin_functions["sign"] = new BuiltinFunction(&builtin_sign);
builtin_functions["min"] = new BuiltinFunction(&builtin_min);
builtin_functions["max"] = new BuiltinFunction(&builtin_max);
builtin_functions["sin"] = new BuiltinFunction(&builtin_sin);