CMatrix:Copy
The Copy method duplicates the current CMatrix and returns the new object.
M = CMatrix:Copy() |
This method copies an existing CMatrix and returns a reference to the new CMatrix. You cannot copy a CMatrix or other class object using the trivial statement B = A, as this simply makes the value of B a reference to the object A. In other words, B becomes an alias to A. To get around this, two copy methods are provided by the CMatrix class:
To create a CMatrix that is a copy of the current object, use the Copy method. This creates a new CMatrix B before duplicating the values of the current object A. For example,
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-- CMatrix A already exists |
To create a new CMatrix that is a copy of an existing object, use the copy constructor, as in
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-- CMatrix A already exists |
You can use the copying syntax that fits best with your script.
The following script fragment duplicates the CMatrix M into a new CMatrix M2:
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-- create a CMatrix |
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-- set member 2, 44 |
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-- set member 50, 20 |
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-- set member 120, 2 |
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-- creates a duplicate CMatrix M2 |
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-- result: N = 3 |
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-- if finished with M, clean up memory |