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# Copyright (C) 2023 The Qt Company Ltd.
# Copyright (C) 2013 Riverbank Computing Limited.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from __future__ import annotations
import math
from PySide6.QtGui import (QVector3D, QVector3DList)
class Logo():
def __init__(self):
self.m_data = QVector3DList()
self.m_data.reserve(5000)
x1 = +0.06
y1 = -0.14
x2 = +0.14
y2 = -0.06
x3 = +0.08
y3 = +0.00
x4 = +0.30
y4 = +0.22
self.quad(x1, y1, x2, y2, y2, x2, y1, x1)
self.quad(x3, y3, x4, y4, y4, x4, y3, x3)
self.extrude(x1, y1, x2, y2)
self.extrude(x2, y2, y2, x2)
self.extrude(y2, x2, y1, x1)
self.extrude(y1, x1, x1, y1)
self.extrude(x3, y3, x4, y4)
self.extrude(x4, y4, y4, x4)
self.extrude(y4, x4, y3, x3)
NUM_SECTORS = 100
for i in range(NUM_SECTORS):
angle = (i * 2 * math.pi) / NUM_SECTORS
x5 = 0.30 * math.sin(angle)
y5 = 0.30 * math.cos(angle)
x6 = 0.20 * math.sin(angle)
y6 = 0.20 * math.cos(angle)
angle = ((i + 1) * 2 * math.pi) / NUM_SECTORS
x7 = 0.20 * math.sin(angle)
y7 = 0.20 * math.cos(angle)
x8 = 0.30 * math.sin(angle)
y8 = 0.30 * math.cos(angle)
self.quad(x5, y5, x6, y6, x7, y7, x8, y8)
self.extrude(x6, y6, x7, y7)
self.extrude(x8, y8, x5, y5)
def const_data(self):
return self.m_data.constData()
def count(self):
return len(self.m_data) * 3
def vertex_count(self):
return self.count() / 6
def quad(self, x1, y1, x2, y2, x3, y3, x4, y4):
n = QVector3D.normal(QVector3D(x4 - x1, y4 - y1, 0),
QVector3D(x2 - x1, y2 - y1, 0))
self.add(QVector3D(x1, y1, -0.05), n)
self.add(QVector3D(x4, y4, -0.05), n)
self.add(QVector3D(x2, y2, -0.05), n)
self.add(QVector3D(x3, y3, -0.05), n)
self.add(QVector3D(x2, y2, -0.05), n)
self.add(QVector3D(x4, y4, -0.05), n)
n = QVector3D.normal(QVector3D(x1 - x4, y1 - y4, 0),
QVector3D(x2 - x4, y2 - y4, 0))
self.add(QVector3D(x4, y4, 0.05), n)
self.add(QVector3D(x1, y1, 0.05), n)
self.add(QVector3D(x2, y2, 0.05), n)
self.add(QVector3D(x2, y2, 0.05), n)
self.add(QVector3D(x3, y3, 0.05), n)
self.add(QVector3D(x4, y4, 0.05), n)
def extrude(self, x1, y1, x2, y2):
n = QVector3D.normal(QVector3D(0, 0, -0.1),
QVector3D(x2 - x1, y2 - y1, 0))
self.add(QVector3D(x1, y1, 0.05), n)
self.add(QVector3D(x1, y1, -0.05), n)
self.add(QVector3D(x2, y2, 0.05), n)
self.add(QVector3D(x2, y2, -0.05), n)
self.add(QVector3D(x2, y2, 0.05), n)
self.add(QVector3D(x1, y1, -0.05), n)
def add(self, v, n):
self.m_data.append(v)
self.m_data.append(n)
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