muellan / numeric_map

header-only library of numeric maps for C++14

AM numeric maps

Header-only library of numeric maps for C++14.

Quick Overview

Interpolating Maps

interpolating_map<Key,Value,Interpolator,KeyCompare,Allocator>

Interpolation function with a std::map like interface. Each {key,value} pair is a node (in the mathematical sense) of {domain,co-domain} values.

Differences to std::map:

• nodes are stored in a sorted, contiguous array (vector_map)
• operator [] (size_t) allows indexed access to the nodes
• operator () (const Key& x) returns the (interpolated co-domain) value at (domain) point x

Interpolators

• piecewise_constant
• piecewise_linear
• piecewise_log_linear: piece-wise linear interpolation at position log(x)

Gradients

Gradients are polymorphic interpolating functions; think "gradient" as in "color gradient".

• gradient: polymorphic base class "interface"
• interpolating_gradient: gradient based on interpolating_map

Requirements

• requires C++14 conforming compiler
• tested with g++ 6.1