jefftrull

#+TITLE: Creating a Custom Plot Type for org-mode
#+AUTHOR: Jeff Trull

* Introduction

- Motivated by last month's discussion of PLOT
- I wanted to understand the semantic meaning of PLOT for my Keynote backend
- Ihor pointed out the newly released "sectors" feature in gnuplot
  - makes it theoretically possible to implement things like pie charts that Keynote has

jefftrull

** Jeff Trull: thing-at-point
*** Generalizes "things" - parseable elements in a buffer
- words, lines, sentences
- symbols and sexps
- emails and urls
- uuids

Imagine anything that might come after ~forward-~

**** Example

jefftrull

# Meme-compliant gnuplot 6 pie chart demo
# Jeff Trull 2024-07-12
set terminal png

unset border
unset xtics
unset ytics
unset rtics
unset key
set theta clockwise top

jefftrull

        .section        .text._Z11extract_fooIeET_N5boost6python3api6objectE,"axG",@progbits,long double extract_foo<long double>(boost::python::api::object),comdat
        .p2align 4
        .weak   long double extract_foo<long double>(boost::python::api::object)
        .type   long double extract_foo<long double>(boost::python::api::object), @function
long double extract_foo<long double>(boost::python::api::object):
.LFB10151:
        .cfi_startproc
        .cfi_personality 0x9b,DW.ref.__gxx_personality_v0
        .cfi_lsda 0x1b,.LLSDA10151
        endbr64

jefftrull

(setq lsp-clients-clangd-args
      (list (concat "--compile-commands-dir="
                    (projectile-project-root)
                    "build")
                    "--log=verbose"
                    "-j=1"
                    "--debug"
                    "--clang-tidy"
                    "--background-index")))

jefftrull

Brief intro to Source Code in Org

Required Setup

;; add support for C++ and Python
(org-babel-do-load-languages
  'org-babel-load-languages
  '((C . t) (python . t)))

jefftrull

Testing C++ tangling from org-mode

jefftrull

// std::vector<Eigen::VectorXf> -> Eigen::MatrixXf
#include <iostream>
#include <vector>
#include <Eigen/Dense>

int main() {
    using namespace Eigen;
    const int cols = 10;
    const int rows = 10;  // or do you get it from the sizes of each entry in *d?
    std::vector<VectorXf> * d = new std::vector<VectorXf>(cols);

jefftrull

// demonstrating use of Eigen::Map
#include <iostream>
#include <vector>
#include <Eigen/Dense>

int main() {
    using namespace Eigen;
    std::vector<float> foo{1.0, 2.0, 3.0, 4.0};
    Map<Matrix<float, Dynamic, 1>> foom(foo.data(), foo.size());
    IOFormat OctaveFmt(StreamPrecision, 0, ", ", ";\n", "", "", "[", "]");

jefftrull

// experimenting with zip iterator and sort

#include <vector>
#include <iostream>

#include <boost/iterator/zip_iterator.hpp>
#include <boost/fusion/adapted/std_tuple.hpp>

using zip_it = boost::zip_iterator<std::tuple<std::vector<std::size_t>::iterator,
                                              std::vector<std::size_t>::iterator,