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@sphaero
sphaero / Nodes.cpp
Created December 12, 2018 15:07 — forked from ChemistAion/nodes.cpp
Second prototype of standalone node graph editor for ImGui
#include "Nodes.h"
namespace ImGui
{
template<int n>
struct BezierWeights
{
constexpr BezierWeights() : x_(), y_(), z_(), w_()
{
for (int i = 1; i <= n; ++i)
@gocarlos
gocarlos / Eigen Cheat sheet
Last active January 19, 2025 21:34
Cheat sheet for the linear algebra library Eigen: http://eigen.tuxfamily.org/
// A simple quickref for Eigen. Add anything that's missing.
// Main author: Keir Mierle
#include <Eigen/Dense>
Matrix<double, 3, 3> A; // Fixed rows and cols. Same as Matrix3d.
Matrix<double, 3, Dynamic> B; // Fixed rows, dynamic cols.
Matrix<double, Dynamic, Dynamic> C; // Full dynamic. Same as MatrixXd.
Matrix<double, 3, 3, RowMajor> E; // Row major; default is column-major.
Matrix3f P, Q, R; // 3x3 float matrix.
// ImGui - standalone example application for Glfw + OpenGL 3, using programmable pipeline
#include <imgui.h>
#include "imgui_impl_glfw_gl3.h"
#include <stdio.h>
#include <GL/gl3w.h>
#include <GLFW/glfw3.h>
#include <math.h>
#include <string.h>
#include <vector>
@ocornut
ocornut / imgui_node_graph_test.cpp
Last active March 6, 2025 16:51
Node graph editor basic demo for ImGui
// Creating a node graph editor for Dear ImGui
// Quick sample, not production code!
// This is quick demo I crafted in a few hours in 2015 showcasing how to use Dear ImGui to create custom stuff,
// which ended up feeding a thread full of better experiments.
// See https://github.com/ocornut/imgui/issues/306 for details
// Fast forward to 2023, see e.g. https://github.com/ocornut/imgui/wiki/Useful-Extensions#node-editors
// Changelog
// - v0.05 (2023-03): fixed for renamed api: AddBezierCurve()->AddBezierCubic().
// Polyphase decimation filter.
//
// Convert an oversampled audio stream to non-oversampled. Uses a
// windowed sinc FIR filter w/ Blackman window to control aliasing.
// Christian Floisand's 'blog explains it very well.
//
// This version has a very simple main processing loop (the decimate
// method) which vectorizes easily.
//
// Refs: