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barqueira

@lbarqueira.bsky.social
2K followers 252 following 446 posts

Data Viz & Creative Coding enthusiast. Ex-Dell & Siemens. MSc, Electrical & Computer Eng. Also Digital Creator & Welsh Corgi ❤️ Blog: lbarqueira.github.io

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barqueira @lbarqueira.bsky.social · 18/09/2026
Santa-Luzia (Tavira, Algarve). It is considered the octopus capital of Portugal. #seedance20 #seedance #generativeAI #AIart️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️ #algarve #portugal #tavira #Claude
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barqueira @lbarqueira.bsky.social · 29/08/2026
Flamingo at Santa-Luzia, Ria Formosa, Algarve, Portugal #seedance20 #seedance #generativeAI #AIart️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️ #algarve #portugal #tavira #santaluzia
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barqueira @lbarqueira.bsky.social · 06/08/2026
Active exposure #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #paints #Omni
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barqueira @lbarqueira.bsky.social · 04/08/2026
Excellent moments in Tavira, Algarve, Portugal. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #seedance2.0 #corgi #dogs
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barqueira @lbarqueira.bsky.social · 03/08/2026
Dedicated to my best friend LUGH. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #seedance #corgi #dogs
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barqueira @lbarqueira.bsky.social · 02/08/2026
Condylactis gigantea (Atlantic Anemone - Pink) #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #seedance
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barqueira @lbarqueira.bsky.social · 28/07/2026
Now, the construction phase of "ALCATRAZ". #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #boat #seedance #chatGPT
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barqueira @lbarqueira.bsky.social · 27/07/2026
Restored footage of my grandparents' boat christening - converted into video - from when I was 5 years old and had the privilege of inaugurating it. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #boat #claude #seedance #chatGPT
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barqueira @lbarqueira.bsky.social · 24/07/2026
My beautiful Lugh - Cardigan Welsh Corgi. A video generated with Veo 3.1 model, based on a Character Sheet of Lugh⬇️. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #dog #corgi
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barqueira @lbarqueira.bsky.social · 23/07/2026
A video generated with Seedance 2.0, based only on a storyboard. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #seedance
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barqueira @lbarqueira.bsky.social · 12/07/2026
A Lookdown fish (Selene vomer) coming to life from its x-ray skeleton. Generated with Seedance 2.0. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI #nature #fish #seedance
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barqueira @lbarqueira.bsky.social · 11/07/2026
Sardine Shoal Model: Veo 3.1 - Fast #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 11/07/2026
A 1972 Innocenti Mini Cooper 1000 assembled progressively. Using Omni Flash model. #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 10/07/2026
Great White Shark Generative AI video model: Kling 3.0 #AiCommunity #AIArt #DigitalArt #GenerativeArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 10/07/2026
“Wilma” was one of the most recognizable silhouettes sailing the waters of the Tagus River. An Amel Euro`s 41 sailboat. Based on real photographs and technical drawings, I created a 3D image. 1/2 #AIArt #DigitalArt #sailboat #sailing
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barqueira @lbarqueira.bsky.social · 10/07/2026
📹AI Video Model Comparison: Image-to-Video Same prompt on each model for 3 generations and picked my favorite results: • Seedance 2.0 Fast • Kling 3.0 • Wan 2.7 • Veo 3.1 Fast • Omni Flash Same input image (first frame of video). 1/6 #GenerativeArt #AIArt #DigitalArt #GenerativeAI #AIcommunity
Input image (first frame of Video)
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barqueira @lbarqueira.bsky.social · 08/07/2026
1972 Innocenti Mini Cooper #GenerativeArt #AIArt #DigitalArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 05/07/2026
1972 Innocenti Mini Cooper #GenerativeArt #AIArt #DigitalArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 04/07/2026
Dandelion blown by the wind. #GenerativeArt #AIArt #DigitalArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 02/07/2026
Inspired by Nick Veasey`s x-ray art. Ferrari SF-25 #GenerativeArt #AIArt #DigitalArt #GenerativeAI
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barqueira @lbarqueira.bsky.social · 03/06/2026
Visualization of a complex dynamical system defined by a degree-3 Blaschke product, rendered as a 2D image using a #GLSL #shader in #p5.js, then extruded into 3D using the #rstats package #rayshader. #MathArt #Fractals #HermanRings #GenerativeArt #CreativeCoding
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barqueira @lbarqueira.bsky.social · 29/05/2026
Built a little tool that emails me a 📊 Daily ETF report — prices, P&L, and an AI commentary — generated automatically while I sleep. 📈 Python + GitHub Actions + Gemini. Free and open source. 🔗 github.com/lbarqueira/m... #Python #ETF #Investing #OpenSource
github.com
GitHub - lbarqueira/my_etf_portfolio
Contribute to lbarqueira/my_etf_portfolio development by creating an account on GitHub.
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barqueira @lbarqueira.bsky.social · 13/05/2026
A 3D sunflower using the #rstats package #rayshader #SciArt #MathArt
3D sunflower using #rstats and #rayshader package
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barqueira @lbarqueira.bsky.social · 11/05/2026
A 3D red carnation using the #rstats package #rayshader Every year on April 25th, 🇵🇹Portugal celebrates the Carnation Revolution, which ended 48 years of dictatorship in the country. #Portugal #dataviz #rayshader #MathArt
3D red carnation using the #rstats package #rayshader
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barqueira @lbarqueira.bsky.social · 10/05/2026
A red rose for mother's day. Credits to @tylermw.com for #rayshader #rstats package and to @aschinchon #SciArt #MathArt
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barqueira @lbarqueira.bsky.social · 08/05/2026
I tried to recreate in #rstats the tiles that cover the facade of my grandparents` house. After many attempts, I arrived at the following 2D and 3D results (not at all similar to the original, by the way) #rayshader #math #SciArt #MathArt
3D version using rayshader package rstats2D version using rstatsThe original tiles. A photo from my grandparents` house facade.
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barqueira @lbarqueira.bsky.social · 07/05/2026
Douro Demarcated Region - 3D and 2D images. Located in Northeast #Portugal, within the Douro River basin Data: AWS Tiles | Boundary: IVDP Credits to @milos-makes-maps.bsky.social for its amazing R tutorials on #dataviz, and to @tylermw.com for #rayshader #rstats package #maps #rspatial #gis #gischat
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barqueira @lbarqueira.bsky.social · 04/05/2026
Revisiting a post from December 2024, but updated. Inspired by @nrennie.bsky.social Thanks to @tylermw.com for {rayshader} #rstats packages #dataviz #math #SciArt #MathArt
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barqueira @lbarqueira.bsky.social · 02/05/2026
3D interactive visualization of complex roots of High-Degree Polynomials #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math lbarqueira.github.io/2026/04/30/3...
lbarqueira.github.io
Interactive 3D visualization of Complex Roots of High-Degree Polynomials
Interactive 3D visualization showing the behavior of complex roots. You can rotate and zoom into the graph directly.
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barqueira @lbarqueira.bsky.social · 26/04/2026
3D visualization shows the complex roots of: 10x³⁸ - 10x³⁷ + (200t₁²-100)x²³ + P(t₂) = 0 where P(t₂)=204800t₂¹² - 614400t₂¹⁰ + 691200t₂⁸ - 358400t₂⁶ + 84000t₂⁴ - 7200t₂² + 100 t₁,t₂ are on the unit circle. Colors: Im(t₂) Inspired by the work of @sconradi.bsky.social #MathArt #Python #CodeArt
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barqueira @lbarqueira.bsky.social · 24/04/2026
Roots of complex polynomial - two perspectives 1 - top-down view (elev=90, azim=-90) 2 - camera to a 45-degree angle (elev=45, azim=90) #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 23/04/2026
Roots of complex polynomial Two colormap versions #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 18/04/2026
Roots of complex polynomial #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 14/04/2026
I trained machine learning models on five index ETFs and asked the question: Which technical indicators are the most important predictors of direction at next-day, next-week, and next-month horizons? Full post + report: 👉 lbarqueira.github.io/2026/04/14/w... #investing #ETF #MachineLearning #ML #AI
lbarqueira.github.io
What technical indicators to look at for index ETF prediction on next day, next week and next month investment — a Machine Learning analysis
If you have ever stared at a chart full of indicators — moving averages, RSI, MACD, volume bars — and wondered which ones actually matter for the decision you are trying to make, this post is for you.
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barqueira @lbarqueira.bsky.social · 09/04/2026
Day 4 of the #30DayChartChallenge: Slope 📊 On April 8, 2026, the S&P 500 index (^GSPC) showed a significant increase, closing at 6,782.81. This increase was mainly driven by the ceasefire agreement between the United States and Iran. #python #dataviz
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barqueira @lbarqueira.bsky.social · 08/04/2026
Roots of complex polynomial Inspired by ‪the work of @sconradi.bsky.social #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 05/04/2026
I built a Python framework for technical analysis reports: 10 indicators, adaptive scoring by time horizon, transparent verdict w/ full methodology table. Last report: ^GSPC, N_DAYS = 365 — generated April 04, 2026 at 07:08 PM available here 👇 lbarqueira.github.io/2026/04/04/t... #Python #Finance
lbarqueira.github.io
A Python Framework for Technical Analysis: 10 Indicators, Adaptive Methodology, and a Transparent Verdict System
An introduction to the automated technical analysis reports I will be sharing regularly — what each indicator measures, why each one is included, and how the adaptive weighted scoring system produces ...
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Reposted by barqueira
#30DayChartChallenge @30daychartchall.bsky.social · 31/03/2026
Just one day - or, depending on your timezone maybe just a few hours - until the next #30DayChartChallenge kicks off. 🚀 1 prompt for each day of April across 5 categories to spark inspiration, experimentation, and learning. 📊 Who's in? 👀 #dataviz #datavisualization
A banner with the prompts for the 6th edition of the 30DayChartChallenge
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barqueira @lbarqueira.bsky.social · 30/03/2026
S&P 500 (^GSPC) - Financial Analysis - The latest 90-day report You can download the full report from: lbarqueira.github.io/2026/03/30/s... #python #stocks #sp500
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barqueira @lbarqueira.bsky.social · 22/03/2026
S&P 500 (^GSPC) Financial Analysis #financial #stock #sp500 #python #analysis #Bollinger #macd #rsi #TechnicalAnalysis #Montecarlo
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barqueira @lbarqueira.bsky.social · 06/12/2025
A painting my mother made in 1997. The most beautiful gift I've ever received. #painting #art
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barqueira @lbarqueira.bsky.social · 05/09/2025
My bear phase. #CorgiCrew #DogsOfBluesky #corgisky #corgi #photography #photo
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barqueira @lbarqueira.bsky.social · 31/08/2025
Father and son in complete harmony. #CorgiCrew #DogsOfBluesky #corgisky #corgi #photography #photo
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barqueira @lbarqueira.bsky.social · 11/08/2025
Roots of complex polynomial Inspired by ‪the work of @sconradi.bsky.social #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
Exploring the roots of an 18th-degree complex polynomial
x^18−x^17+(100it1^5−100it1^4+100it1^3−100it1^2−100t1+100i)·x^10+(−100it2^4−100it2^3+100it2^2+100it2+100)·x^6−0.1 x+0.1
where t₁,t₂ are complex numbers on the unit circle.
z-axis and color encode Im(t1).
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barqueira @lbarqueira.bsky.social · 09/08/2025
Ria Formosa, Santa-Luzia, #Tavira, #Algarve, #Portugal July, 2025 #photography, #photo
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barqueira @lbarqueira.bsky.social · 02/08/2025
Exploring the chaotic beauty of Hopalong Attractors. Each of these nine images is generated from a different set of parameters, showing the incredible variety of patterns that emerge. #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 28/07/2025
Visualizing Laplace Eigenfunctions on a Circular Domain These vibrational patterns emerge from solving the eigenvalue problem for the discrete Laplacian matrix. #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 27/07/2025
Photo taken by my youngest son of our great bud. #Photography
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barqueira @lbarqueira.bsky.social · 25/07/2025
Visualizing the roots of: x⁹ + 3x⁷ + (−25𝑖𝑡₂² −25𝑖𝑡₂ +75𝑖)x⁵ −4x −50𝑡₁ −50𝑖 where 𝑡₁, 𝑡₂ are random points on the complex unit circle 750,000 (𝑡₁,𝑡₂) pairs → 6.75 million roots Color maps Im(𝑡₂) using a psychedelic rainbow gradient #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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barqueira @lbarqueira.bsky.social · 22/07/2025
Visualizing roots of:: (-15i·t₂² -15i·t₂ +15i)x⁷ + 3x⁶ -100t₁ -100i where t₁, t₂ are complex numbers with |tⱼ|=1. Key to the plot: • ↔️ x/y: Root's real/imaginary parts • ↕️ z: Imaginary part of t₂ • 🔵→🔴 Colors: Im(t₂) from -1 (blue) to +1 (red) #MathArt #Python #CodeArt #SciArt #CreativeCoding #Math
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