128 lines
4.1 KiB
Python
128 lines
4.1 KiB
Python
import math
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from typing import List, Tuple
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from PySide6.QtCore import Qt
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from PySide6.QtGui import QBrush, QPainter
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from PySide6.QtWidgets import QGraphicsItemGroup
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from PySide6.QtWidgets import (
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QStyleOptionGraphicsItem,
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QWidget,
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)
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from grid.ui.items import SphereGraphicsItem, ArcGraphicsItem, LineGraphicsItem
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class Pattern(QGraphicsItemGroup):
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"""Common pattern on the sphere grid"""
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PATTERN_WIDTH = 600
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SPACE_BETWEEN_SPHERE = 60
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def __init__(self, top_left_corner_x: int, top_left_corner_y: int) -> None:
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super().__init__()
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# center coordinates of the pattern
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center_x = int((top_left_corner_x + self.PATTERN_WIDTH) / 2)
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center_y = int((top_left_corner_y + self.PATTERN_WIDTH) / 2)
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# center
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self.addToGroup(SphereGraphicsItem(center_x, center_y))
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self.addToGroup(SphereGraphicsItem(0, 0))
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# first cercle
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sphere_on_circle = 4
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points = self.generate_circle_points(
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center_x, center_y, self.SPACE_BETWEEN_SPHERE, sphere_on_circle
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)
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for x, y in points:
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self.addToGroup(SphereGraphicsItem(x, y))
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for i in range(sphere_on_circle-1):
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self.addToGroup(
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ArcGraphicsItem(
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x_pos=center_x,
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y_pos=center_y,
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width=self.SPACE_BETWEEN_SPHERE * 2,
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angle_start=(i * 360 / sphere_on_circle) % 360,
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angle_end=((i + 1) * 360 / sphere_on_circle) % 360,
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parent=self,
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)
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)
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line_start_x = center_x
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line_start_y = center_y
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line_end_x = center_x
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line_end_y = int(center_y + self.SPACE_BETWEEN_SPHERE)
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self.addToGroup(
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LineGraphicsItem(line_start_x, line_start_y, line_end_x, line_end_y, self)
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)
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# second cercle
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sphere_on_circle = 8
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points = self.generate_circle_points(
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center_x, center_y, self.SPACE_BETWEEN_SPHERE * 2, sphere_on_circle
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)
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for x, y in points:
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self.addToGroup(SphereGraphicsItem(x, y))
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for i in range(sphere_on_circle-2):
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self.addToGroup(
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ArcGraphicsItem(
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x_pos=center_x,
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y_pos=center_y,
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width=self.SPACE_BETWEEN_SPHERE * 4,
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angle_start=int(i * 360 / sphere_on_circle / 4) % 360,
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angle_end=int((i + 1) * 360 / sphere_on_circle) % 360,
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parent=self,
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)
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)
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# self.addToGroup(
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# ArcGraphicsItem(
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# center_x, center_y, self.SPACE_BETWEEN_SPHERE * 2, 0, 90, self
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# )
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# )
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# third cercle
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# sphere_on_circle = 8
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# points = self.generate_circle_points(
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# center_x, center_y, self.SPACE_BETWEEN_SPHERE * 3, sphere_on_circle
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# )
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# for x, y in points:
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# self.addToGroup(SphereGraphicsItem(x, y))
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def paint(
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self,
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painter: QPainter,
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option: QStyleOptionGraphicsItem,
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widget: QWidget | None = ...,
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):
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super().paint(painter, option, widget)
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brush = QBrush(Qt.GlobalColor.gray)
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painter.setBrush(brush)
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painter.drawRect(0, 0, self.PATTERN_WIDTH, self.PATTERN_WIDTH)
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def generate_circle_points(
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self, center_x: int, center_y: int, radius: int, n_points: int
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) -> List[Tuple[int, int]]:
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"""generate coordinates of points on a circle equally spaced
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Args:
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center_x (int): center x coordinate
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center_y (int): center y coordinate
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radius (int): circle radius
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n_points (int): number of points on the circle to generate
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Returns:
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List[Tuple[int, int]]: list of points coordinates, (x,y)
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"""
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points = []
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angle_step = 2 * math.pi / n_points
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for i in range(n_points):
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theta = i * angle_step
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x = int(center_x + radius * math.cos(theta))
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y = int(center_y + radius * math.sin(theta))
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points.append((x, y))
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return points
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