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Changed unit(dflt=) to unit(error=)

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Garth Minette 2020-07-11 23:23:12 -07:00
parent dde616dad5
commit 0be0708c2b
2 changed files with 7 additions and 7 deletions
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12
vectors.scad
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@ -106,13 +106,13 @@ function vceil(v) = [for (x=v) ceil(x)];
// Function: unit()
// Usage:
// unit(v, [dflt]);
// unit(v, [error]);
// Description:
// Returns unit length normalized version of vector v. If passed a zero-length vector,
// asserts an error unless `dflt` is given, in which case the value of `dflt` is returned.
// Returns the unit length normalized version of vector v. If passed a zero-length vector,
// asserts an error unless `error` is given, in which case the value of `error` is returned.
// Arguments:
// v = The vector to normalize.
// dflt = If given, and input is a zero-length vector, this value is returned. Default: `undef` (assert error on zero-length vector)
// error = If given, and input is a zero-length vector, this value is returned. Default: Assert error on zero-length vector.
// Examples:
// unit([10,0,0]); // Returns: [1,0,0]
// unit([0,10,0]); // Returns: [0,1,0]
@ -120,9 +120,9 @@ function vceil(v) = [for (x=v) ceil(x)];
// unit([0,-10,0]); // Returns: [0,-1,0]
// unit([0,0,0],[1,2,3]); // Returns: [1,2,3]
// unit([0,0,0]); // Asserts an error.
function unit(v, dflt) =
function unit(v, error=[[["ASSERT"]]]) =
assert(is_vector(v), str("Expected a vector. Got: ",v))
norm(v)<EPSILON? (is_undef(dflt)? assert(norm(v)>=EPSILON) : dflt) :
norm(v)<EPSILON? (error==[[["ASSERT"]]]? assert(norm(v)>=EPSILON) : error) :
v/norm(v);

2
version.scad
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@ -8,7 +8,7 @@
//////////////////////////////////////////////////////////////////////
BOSL_VERSION = [2,0,390];
BOSL_VERSION = [2,0,391];
// Section: BOSL Library Version Functions