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Изворен канал @pythonotes · Post #164 · 14 окт.
🙄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
Пребарај: #bitcoinnews
@digitalgentop · Post #225 · 03.06.2024 г., 03:02
⚡️El Salvador’s Bitcoin, AI plans could boost GDP tenfold by 2029: Cathie Wood 💰The ARK Invest CEO praised the Central American country for being an “oasis” for Bitcoin and AI adoption. #Bitcoinnews #Cryptolover #Cryptosignals #Bitcointrading
@digitalgentop · Post #42 · 21.05.2024 г., 21:45
☄️Tether has exceeded Germany 🇩🇪 in terms of U.S. Treasury holdings, now sitting at the 19th position globally with $91 billion in bonds as of March 31st. Paul Ryan, former Speaker of the House, recommends regulating stablecoins given Tether's noteworthy influence on the digital dollar.💵🕯 #Cryptoeducation #Bitcoinnews #Cryptolover
@propheta_indicator · Post #23152 · 03.12.2025 г., 14:02
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@propheta_indicator · Post #23037 · 09.11.2025 г., 17:30
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@propheta_indicator · Post #22916 · 16.10.2025 г., 15:58
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@digitalgentop · Post #236 · 05.06.2024 г., 08:03
🕯Price analysis 5/30: BTC, ETH, BNB, SOL, XRP, DOGE, TON, SHIB, ADA, AVAX 💰Bitcoin remains in sideways price action, but a positive sign is that the investors have continued to buy the spot Bitcoin exchange-traded funds. 💰Farside Investors data shows net positive inflows into the ETFs for the past 11 days. #Cryptoeducation #Bitcoinnews #Cryptolover #Cryptosignals
@propheta_indicator · Post #23084 · 21.11.2025 г., 07:36
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@propheta_indicator · Post #23517 · 19.03.2026 г., 12:10
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@propheta_indicator · Post #23532 · 22.03.2026 г., 11:28
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@propheta_indicator · Post #23650 · 02.04.2026 г., 09:26
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@propheta_indicator · Post #23039 · 10.11.2025 г., 01:22
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@propheta_indicator · Post #22870 · 07.10.2025 г., 17:42
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