🙄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
Phrasal verbs with "sleep":
○sleep in
●sleep on
○sleep off
●sleep over
○sleep through
sleep in
Example: I usually sleep in on weekends.
sleep on (it)
Example: I’m not sure about this offer. Let me sleep on it.
sleep off
Example: After the marathon, he slept off his exhaustion.
sleep over
Example: My friend invited me to sleep over at her house.
sleep through
Example: I slept through the storm last night.
••┈┈●•❁❁✹❁❁•●┈┈┈••
#phrasalverbs
#Phrasalverbs
@fluencyinenglish
❇️show up
حضور یافتن در جایی
When you appear somewhere, you show up.
👉Turn up is similar to show up.
Turn up
مترادف show up میباشد
Example:
1. I was supposed to meet my sister for lunch, but she didn't show up.
@fluencyinenglish
2. Over a hundred people showed up for the news conference.
____________________________
show up
ظاهر شدن
When something appears or becomes visible, it shows up.
@fluencyinenglish
Example:
1. It's hard to photograph polar bears because they don't show up well against the snow.
2. The spots won't show up until the last stages of the disease.
@fluencyinenglish
❇️knuckle down
If you knuckle down, you start to take your work or your task seriously and do it properly.
❇️For example:
knuckle down
🔹The exams start next month, so I guess it's time I knuckled down and studied a bit harder.
knuckle down
🔹If Sammy wants to lose weight, he'll have to knuckle down and start exercising more at the gym
🔹knucklehead/n/
UK /ˈnʌk.əl.hed/
US/ˈnʌk.əl.hed/ us informal
A stupid person
@fluencyinenglish
💡Phrasal Verb
"Set out"
🧐Meaning
to explain the details of something, especially in writing
✅Example:
A contract should clearly set out the responsibilities of each party.
#PhrasalVerbs
💡Phrasal Verb
"take in (2)"
🧐Meaning
to fully understand something you hear or read
✅Example:
I had to read the article a second time to really take it all in. It wasn't easy to understand.
#phrasalverbs
💡Phrasal Verb
"grow on"
🧐Meaning
If something grows on you, you gradually start to like it, even though you didn't like it much at first.
✅Example:
I didn't like the music at first, but it's grown on me and I like it a lot now.
#phrasalverbs
#Teamjimmy
#sirjimmy
💡Phrasal Verb
"to get (something) across"
🧐Meaning:
to express (something) clearly so that it is understood:
✅Example:
I don't know if I was able to get my point across to you.
#Phrasalverbs
#Teamjimmy
#sirjimmy
#vocabulary
#phrasalverbs
#advanced_vocabulary
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
🔹amount to something
/əˈmɑʊnt·tə, -ˌtu/
to add up to, be in total, be equal to, or be the same as
Example: Federal and state costs for building and operating prisons amounted to $25 billion.
Example: The blog amounts to a critique of the U.S. news media.
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cede: To give up control; surrender
(sēd)
Example - "The police officers had to cede control to the FBI agents."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Promenade: Leisurely walk
(prŏm′ə-nād′, -näd′)
Example - "The couple promenaded around town with matching outfits on."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cornucopia: Abundant supply
(kôr′nə-kō′pē-ə, -nyə-)
Example - "My mother loves to garden, she has a cornucopia of fresh veggies in the backyard."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Inimitable: Unmatched; extremely unique
(ĭ-nĭm′ĭ-tə-bəl)
Example - "No matter how hard I tried, I couldn't recreate the painting of the mountains. It was terribly inimitable, and eventually I gave up."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Coalesce: Fuse together
Example - "The two small fires coalesced and turned into one huge raging forest fire.
✅Sharing is caring
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
#vocabulary
#phrasalverbs
#advanced_vocabulary
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
🔹amount to something
/əˈmɑʊnt·tə, -ˌtu/
to add up to, be in total, be equal to, or be the same as
Example: Federal and state costs for building and operating prisons amounted to $25 billion.
Example: The blog amounts to a critique of the U.S. news media.
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cede: To give up control; surrender
(sēd)
Example - "The police officers had to cede control to the FBI agents."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Promenade: Leisurely walk
(prŏm′ə-nād′, -näd′)
Example - "The couple promenaded around town with matching outfits on."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cornucopia: Abundant supply
(kôr′nə-kō′pē-ə, -nyə-)
Example - "My mother loves to garden, she has a cornucopia of fresh veggies in the backyard."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Inimitable: Unmatched; extremely unique
(ĭ-nĭm′ĭ-tə-bəl)
Example - "No matter how hard I tried, I couldn't recreate the painting of the mountains. It was terribly inimitable, and eventually I gave up."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Coalesce: Fuse together
Example - "The two small fires coalesced and turned into one huge raging forest fire.
✅Sharing is caring
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
#vocabulary
#phrasalverbs
#advanced_vocabulary
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
🔹amount to something
/əˈmɑʊnt·tə, -ˌtu/
to add up to, be in total, be equal to, or be the same as
Example: Federal and state costs for building and operating prisons amounted to $25 billion.
Example: The blog amounts to a critique of the U.S. news media.
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cede: To give up control; surrender
(sēd)
Example - "The police officers had to cede control to the FBI agents."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Promenade: Leisurely walk
(prŏm′ə-nād′, -näd′)
Example - "The couple promenaded around town with matching outfits on."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Cornucopia: Abundant supply
(kôr′nə-kō′pē-ə, -nyə-)
Example - "My mother loves to garden, she has a cornucopia of fresh veggies in the backyard."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Inimitable: Unmatched; extremely unique
(ĭ-nĭm′ĭ-tə-bəl)
Example - "No matter how hard I tried, I couldn't recreate the painting of the mountains. It was terribly inimitable, and eventually I gave up."
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
✴️Coalesce: Fuse together
Example - "The two small fires coalesced and turned into one huge raging forest fire.
✅Sharing is caring
@fluencyinenglish
@fluencyinenglish
@fluencyinenglish
5 phrasal verbs with “PAY”
I shared the questions first on purpose — to make you think before seeing the meanings.
That struggle helps the meanings stick better than passive reading.
If a meaning surprised you, that’s good — it means your brain is actually learning.
#EnglishLearning#PhrasalVerbs#LearnEnglish#RealEnglish