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https://github.com/FULU-Foundation/OrcaSlicer-bambulab.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#ifndef IGL_LINSPACED_H
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#define IGL_LINSPACED_H
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#include <Eigen/Core>
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// This function is not intended to be a permanent function of libigl. Rather
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// it is a "drop-in" workaround for documented bug in Eigen:
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// http://eigen.tuxfamily.org/bz/show_bug.cgi?id=1383
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//
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// Replace:
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//
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// Eigen::VectorXi::LinSpaced(size,low,high);
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//
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// With:
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//
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// igl::LinSpaced<Eigen::VectorXi>(size,low,high);
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//
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// Specifcally, this version will _always_ return an empty vector if size==0,
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// regardless of the values for low and high. If size != 0, then this simply
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// returns the result of Eigen::Derived::LinSpaced.
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//
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// Until this bug is fixed, we should also avoid calls to the member function
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// `.setLinSpaced`. This means replacing:
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//
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// a.setLinSpaced(size,low,high);
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//
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// with
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//
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// a = igl::LinSpaced<decltype(a) >(size,low,high);
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//
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namespace igl
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{
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template <typename Derived>
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//inline typename Eigen::DenseBase< Derived >::RandomAccessLinSpacedReturnType
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inline Derived LinSpaced(
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typename Derived::Index size,
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const typename Derived::Scalar & low,
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const typename Derived::Scalar & high);
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}
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// Implementation
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template <typename Derived>
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//inline typename Eigen::DenseBase< Derived >::RandomAccessLinSpacedReturnType
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inline Derived
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igl::LinSpaced(
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typename Derived::Index size,
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const typename Derived::Scalar & low,
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const typename Derived::Scalar & high)
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{
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if(size == 0)
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{
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// Force empty vector with correct "RandomAccessLinSpacedReturnType" type.
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return Derived::LinSpaced(0,0,1);
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}else if(high < low)
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{
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return low-Derived::LinSpaced(size,low-low,low-high).array();
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}else{
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return Derived::LinSpaced(size,low,high);
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}
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}
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#endif
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