Rishabh Battulwar rishabh-battulwar

## XcodeBuildSettingsReference.md

      
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                rishabh-battulwar
                / XcodeBuildSettingsReference.md
            
            
              Created
              September 21, 2021 21:30
                — forked from NSExceptional/XcodeBuildSettingsReference.md
            
              
                The Xcode Build Settings Reference in a searchable document, as of Xcode 8.3.2
              
          
    Build settings reference

Active Build Action (ACTION)

A string identifying the build system action being performed.
Additional SDKs (ADDITIONAL_SDKS)

The locations of any sparse SDKs that should be layered on top of the one specified by Base SDK (SDKROOT). If more than one SDK is listed, the first one has highest precedence. Every SDK specified in this setting should be a "sparse" SDK, for example, not an SDK for an entire macOS release.
Alternate Install Group (ALTERNATE_GROUP)


## quaternion_average.h
#include <Eigen/SVD>

/// Method to find the average of a set of rotation quaternions using Singular Value Decomposition
/*
 * The algorithm used is described here:
 * https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070017872.pdf
 */
Eigen::Vector4f quaternionAverage(std::vector<Eigen::Vector4f> quaternions)
{
	if (quaternions.size() == 0)
	#include <Eigen/SVD>

	/// Method to find the average of a set of rotation quaternions using Singular Value Decomposition
	/*
	* The algorithm used is described here:
	* https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070017872.pdf
	*/
	Eigen::Vector4f quaternionAverage(std::vector<Eigen::Vector4f> quaternions)
	{
	if (quaternions.size() == 0)