🙄Разминка для ума!
Треугольник Серпинского, интересная фигура которую построить достаточно просто.
Алгоритм такой:
1. создаём любые 3 точки на плоскости
2. из этих точек случайно выбираем любую, как начальную
3. случайно выбираем любую точку из этих же трёх точек как цель
4. перемещаемся в сторону цели на половину расстояния
5. повторяем бесконечно с пункта 3
Если сделать достаточно много итераций то вырисовывается интересная фигура. Треугольник, в который вписаны более мелкие треугольники. Это самый настоящий фрактал!
Я собрал пример построения такой фигуры на базе Qt.
🌎 Код можно посмотреть здесь.
С помощью paintEvent я рисую точки по озвученному алгоритму. Каждые 10 секунд либо по клику на виджете строится следующий треугольник.
Особенности примера:
🔸 Атрибут Qt.WA_OpaquePaintEvent позволяет сохранить то, что было нарисовано в прошлой итерации. Таким образом мы видим постепенное наполнение точек а не мелькающую одну точку.
🔸QTimer позволяет создавать отложенные вызовы один раз или с повторением через интервал.
🔸QColor.fromHsv() позволяет создать рандомный но предсказуемый цвет с помощью HSV схемы. Не слишком светлый и не слишком тёмный но всегда с разный. Рандомизации подвергается только смещение по цветовому кругу (Hue), яркость (Value) и насыщенность (Saturation) можно контролировать отдельно в своих пределах или оставить статичными. Обычный рандом цвета по RGB не даёт такой предсказуемый результат.
🔸 Каждый новый цикл с новым треугольником предварительно затемняет предыдущие через этот вызов
painter.fillRect(rec, QColor(0, 0, 0, 100))
То есть полупрозрачный цвет. Таким образом, чем старше треугольник, тем он темней.
Если сделать виджет фулскрин, то у нас получится некий ScreenSaver)))
🔸 Да, я знаю, что рисование в Qt не самый лучший способ сделать этот пример) Скорее всего самый НЕподходящий. Попробуйте сделать тоже самое но другими средствами.
#qt#source#tricks
🎥 VA’s Cira Pascual Marquina reports from Caracas' El Panal Commune in the 23 de Enero neighborhood, where participation has been high and people are praising the efficient voting process.
#LegislativeRegionalElections2025
🎥 "Let’s not leave spaces for those who once used the National Assembly to ask for sanctions to generate suffering and migration."
ALBA-TCP Secretary General Jorge Arreaza from the Manuel Palacios Fajardo polling station in El Panal Commune. This is where Hugo Chávez voted.
#LegislativeRegionalElections2025
🎥 VA’s Katrina Kozarek reports from Lara’s Communal Power Center, where voting began smoothly and locals await GPP candidate Luis Reyes Reyes.
#LegislativeRegionalElections2025
🎥 Voting underway in Caracas’ El Valle neighborhood. VA’s Ricardo Vaz reports from the ground as turnout emerges as the key factor in today’s legislative and regional elections.
#LegislativeRegionalElections2025
🗳️🇻🇪 ELECTIONS | Venezuela’s legislative and regional elections are underway. Electoral authorities report that 100% of voting station officials are present and 95% of polling booths were activated by 8:30 AM.
Nearly 16,000 polling stations have been set up across the country.
📡 Follow Venezuelanalysis’ rolling blog for live coverage throughout the day: https://venezuelanalysis.com/news/venezuelas-2025-legislative-and-regional-elections-rolling-coverage/
#LegislativeRegionalElections2025
📢 Venezuela heads to the polls today, May 25, to elect a new National Assembly, state governors, and regional legislative councils.
The United Socialist Party (PSUV) and its allies in the Great Patriotic Pole selected candidates through a hybrid process: grassroots assemblies across the country and leadership evaluations, according to PSUV candidate Oliver Rivas.
A total of 36 national parties, 10 regional ones, and 6 indigenous organizations are on the ballot.
🗳️ Follow Venezuelanalysis for rolling coverage throughout the day here: https://venezuelanalysis.com/news/venezuelas-2025-legislative-and-regional-elections-rolling-coverage/
#LegislativeRegionalElections2025
🗳️🇻🇪 This Sunday, Venezuelans return to the ballot box to choose new regional lawmakers and local officials.
Count on Venezuelanalysis for on-the-ground updates, context, and full election day coverage!
👉 In the meantime, check out our complete electoral guide here: https://shorturl.at/NylSl
#LegislativeRegionalElections2025
📘 GUIDE | Venezuela’s 2025 Legislative and Regional Elections: A Quick Guide
🗳️🇻🇪 Venezuelans head to the polls on Sunday, May 25, to elect a new National Assembly, governors in all 24 states, and members of regional legislative councils. This marks the 32nd electoral process under the Bolivarian Revolution.
Our quick guide breaks down the key elements of the vote, including the electoral process, major parties and candidates, and key races to watch.
👉 Read the full guide here: https://venezuelanalysis.com/analysis/venezuelas-2025-legislative-and-regional-elections-a-quick-guide/
#LegislativeRegionalElections2025
📰 NEWS | Venezuelan Electoral Authorities Run Election Exercise as Regional, Legislative Campaigns Enter Home Stretch
Venezuela’s National Electoral Council (CNE) carried out a nationwide voting simulation on May 10 in preparation for the May 25 elections, where over 21 million people are eligible to elect 285 National Assembly deputies and 24 governors.
CNE Vice President Carlos Quintero said the trial confirmed electoral readiness, with fewer than 2% of voting machines experiencing issues.
Meanwhile, the opposition is split between those campaigning and others, led by María Corina Machado, calling for a boycott. 36 parties are on the ballot, 13 of them allied with the ruling PSUV.
🗞 Read the full report here: https://shorturl.at/NhJ9l
#LegislativeRegionalElections2025
🎥 VIDEO | Maduro-led Forces Sweep Elections While US Silent: Discussion With Eyewitnesses
Venezuela held elections on May 25 that saw the pro-government Great Patriotic Pole secure overwhelming majorities both in the National Assembly and regional governorships.
In response, the International Manifesto Group convened a panel of international analysts to assess the electoral process, Venezuela’s internal political dynamics, and the broader geopolitical implications.
👉 Watch the full video here: https://venezuelanalysis.com/video/maduro-led-forces-sweep-elections-while-us-silent-discussion-with-eyewitnesses/
#LegislativeRegionalElections2025#NicolasMaduro
📝 INTERVIEW | Venezuela’s Participatory Democracy and the Struggle Against Imperialism: A Conversation with Alison Bodine
In the latest VA interview, international observer and activist Alison Bodine shares her reflections on Venezuela’s May 25 elections. She highlights the country’s participatory democracy, where political engagement goes far beyond the ballot box.
Bodine also critiques the role of mainstream media and calls for coordinated international solidarity to confront US and Canadian sanctions. “Seeing the Bolivarian Revolution in action has profoundly shaped my political views,” she states.
🔗 Read the full interview here: https://venezuelanalysis.com/interviews/venezuelas-participatory-democracy-and-the-struggle-against-imperialism-a-conversation-with-alison-bodine/
#LegislativeRegionalElections2025#Sanctions#Solidarity
📰NEWS | Venezuelan Government Denounces ‘Terrorist’ Plot to Sabotage May 25 Elections
Venezuelan authorities have detained 38 individuals—21 Venezuelans and 17 foreigners—accused of involvement in an alleged far-right conspiracy to sabotage the May 25 regional and legislative elections. Targets reportedly included embassies, hospitals, police stations, and public infrastructure.
According to Interior Minister Diosdado Cabello, the detainees included mercenaries and explosives experts who entered Venezuela via Colombia, posing as tourists. In response, flights from Colombia have been suspended until May 26 at 6:00 p.m.
🔗 Read the full article here: https://shorturl.at/UZMnJ
#LegislativeRegionalElections2025#Terrorism