Harold2017

compile error occurs when link flann as follows:

[ 77%] Linking CXX executable ../../bin/ConvertPointCloud

Undefined symbols for architecture x86_64:

  "_LZ4_compress_HC_continue", referenced from:

Harold2017

/**
 * @brief   Mapping functions from Eigen data types to OpenCV
 * @author  Eugene Khvedchenya <[email protected]>
 * @details This header file contains code snippet for easy mapping Eigen types to OpenCV and back with minimal overhead.
 * @more    computer-vision.talks.com/articles/mapping-eigen-to-opencv/
 * Features:
 *  - Mapping plain data types with no overhead (read/write access)
 *  - Mapping expressions via evaluation (read only acess)
 *
 * Known issues:

Harold2017

// circ_shift.h
// https://stackoverflow.com/questions/46077242/eigen-modifyable-custom-expression/46301503#46301503
// this file implements circShift, fftshift, and ifftshift for Eigen vectors/matrices.
//

#pragma once
#include <Eigen/Core>

template <bool B> using bool_constant = std::integral_constant<bool, B>;

Harold2017

(function(){
    $("#side").remove();
    $("#comment_title, #comment_list, #comment_bar, #comment_form, .announce, #ad_cen, #ad_bot").remove();
    $(".nav_top_2011, #header, #navigator").remove();
    $(".csdn-side-toolbar,.template-box,.reward-user-box").remove();
    $(".p4course_target, .comment-box, .recommend-box, #csdn-toolbar, #tool-box,#dmp_ad_58").remove();
    $("aside").remove();
    $(".tool-box").remove();
    $("main").css('display','content');
    $("main").css('float','left');

Harold2017

git commit stats

Commands to get commit statistics for a Git repository from the command line -
using git log, git shortlog and friends.

---

Harold2017

use QPDF

brew install qpdf
qpdf --decrypt broken.pdf recovery.pdf

Harold2017

# .
# bin
# source
#     dependency
#         include
#         source
#     example
#         include
#         source
#         external

Harold2017

PCL release: PCL-1.12.0-AllInOne-msvc2019-win64.exe

Related issue: PointCloudLibrary/pcl#2147

Crash trace: ~TextureMesh() / Eigen::aligned_allocator

Reason: PCL pre-compiled binary is compiled with AVX enabled which caused incompatibility of EIGEN_IDEAL_MAX_ALIGN_BYTES

Solution: add_compile_options(/arch:AVX)

Harold2017

void OnPhotoCaptured(PhotoCapture.PhotoCaptureResult result, PhotoCaptureFrame photoCaptureFrame)
{
    Matrix4x4 cameraToWorldMatrix;
    photoCaptureFrame.TryGetCameraToWorldMatrix(out cameraToWorldMatrix);
    Matrix4x4 projectionMatrix;
    photoCaptureFrame.TryGetProjectionMatrix(out projectionMatrix);


    var imagePosZeroToOne = new Vector2(pixelPos.x / imageWidth, 1 - (pixelPos.y / imageHeight));
    var imagePosProjected = (imagePosZeroToOne * 2) - new Vector2(1, 1);    // -1 to 1 space

Harold2017

/*!
    This file contains code to convert unsigned integers to strings
    at compile-time, and then modify those strings include more
    information.
    
    One use case is to convert library MAJOR, MINOR, and PATCH
    numbers into a custom string (see below).
    
    Other types like signed integers and floats can be added
    with template specializition on the converter struct.