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Re: [cgal-discuss] Linear cell complex: compilation error calling make_triangle()


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  • From: Guillaume Damiand <>
  • To:
  • Subject: Re: [cgal-discuss] Linear cell complex: compilation error calling make_triangle()
  • Date: Tue, 12 Jan 2016 13:11:59 +0100
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Le 12/01/2016 12:42, Pranav a écrit :
Hi Guillaume,

Thanks it solved the problem. But I would like to know the reason why we
need to /explicitly/ attach an attribute with 0-cell if we have already
declared it to be a linear cell complex which implicitly means CMap with
0-cells having points/coordinates information?

Because Linear_cell_complex is a generic class, having an item class as template argument, and you can use any attribute associated with 0-cells.

This item class must be a model of the LinearCellComplexItems concept, which requires to that 0-attributes are enabled, and associated with a type of attribute being a model of the CellAttributeWithPoint concept.

When you define your own model of the LinearCellComplexItems concept, you need to satisfy this requirement.







With regards,
Pranav



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