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renderer.py
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153 lines (113 loc) · 5.58 KB
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import sys
import numpy as np
import PyQt5
from typing import List
from PyQt5.QtCore import Qt, QEvent
from PyQt5 import QtWidgets, QtCore, QtGui
# all distance units inches
# while True:
# x_coord_of_rendered = 24/point_z * point_irl_coords[0]
# y_coord_of_rendered = 24/point_z * point_irl_coords[1]
class Ui(QtWidgets.QMainWindow):
def __init__(self):
super(Ui, self).__init__()
self.scene = QtWidgets.QGraphicsScene(0, 0, 200, 200)
self.view = QtWidgets.QGraphicsView(self.scene)
self.test_triangle = Triangle3d([[-1, -1, 20], [1, -1, 20], [0, 1, 20]], self.scene)
"""
self.point_irl_coords = [0, 0, 20]
self.convergence_pt_to_screen_distance = 24
self.ellipse_representing_rendered = QtWidgets.QGraphicsEllipseItem(0, 0, 10, 10)
self.ellipse_representing_rendered.setBrush(Qt.red)
self.scene.addItem(self.ellipse_representing_rendered)
"""
self.refresh_time = 17 # => ~60fps
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.update_stuff)
self.timer.start(self.refresh_time)
self.setFocusPolicy(Qt.StrongFocus)
self.setCentralWidget(self.view)
self.show()
def keyPressEvent(self, a0):
print(f"key pressed!! Key text is {a0.text()}")
# update irl coords of point
if a0.text() == "k": # go up
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords: # TODO: make this into a sensible matrix based thingy
point[1] += 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[1] += 1
elif a0.text() == "j": # go down
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords:
point[1] -= 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[1] -= 1
elif a0.text() == "h":
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords:
point[0] -= 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[0] -= 1
elif a0.text() == "l":
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords:
point[0] += 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[0] += 1
elif a0.text() == "i":
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords:
point[2] -= 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[2] -= 1
elif a0.text() == "o":
triangle_coords = self.test_triangle.get_coords()
for point in triangle_coords:
point[2] += 1
self.test_triangle.set_coords(triangle_coords)
# self.point_irl_coords[2] += 1
else:
super(Ui, self).keyPressEvent(a0)
return
# # calculate new projected coords of point's image
# if not self.point_irl_coords[2] == 0:
# x_coord_of_rendered = 24/self.point_irl_coords[2] * self.point_irl_coords[0] + 100
# y_coord_of_rendered = 24/self.point_irl_coords[2] * self.point_irl_coords[1] + 100
# else:
# x_coord_of_rendered = 24/(self.point_irl_coords[2] + 0.01) * self.point_irl_coords[0] + 100
# y_coord_of_rendered = 24/(self.point_irl_coords[2] + 0.01) * self.point_irl_coords[1] + 100
# self.ellipse_representing_rendered.setX(x_coord_of_rendered)
# self.ellipse_representing_rendered.setY(y_coord_of_rendered)
def update_stuff(self):
pass
class Triangle3d:
def __init__(self, points_coords: List[List[float]], scene: QtWidgets.QGraphicsScene):
self.points_coords = points_coords
self.projected_triangle = QtWidgets.QGraphicsPolygonItem(QtGui.QPolygonF([QtCore.QPointF(0, 0),
QtCore.QPointF(1, 0),
QtCore.QPointF(0, 1)]))
scene.addItem(self.projected_triangle)
self.draw()
def draw(self):
projected_coords = []
for point_coords in self.points_coords:
if not point_coords[2] == 0:
projected_x_coord = 24 / point_coords[2] * point_coords[0] + 100
projected_y_coord = 24 / point_coords[2] * point_coords[1] + 100
else:
projected_x_coord = 24 / (point_coords[2] + 0.01) * point_coords[0] + 100
projected_y_coord = 24 / (point_coords[2] + 0.01) * point_coords[1] + 100
projected_coords.append([projected_x_coord, projected_y_coord])
self.projected_triangle.setPolygon(QtGui.QPolygonF([QtCore.QPointF(projected_coords[0][0], projected_coords[0][1]),
QtCore.QPointF(projected_coords[1][0], projected_coords[1][1]),
QtCore.QPointF(projected_coords[2][0], projected_coords[2][1])]))
def set_coords(self, points_coords: List[List[float]], auto_draw: bool = True):
self.points_coords = points_coords
if auto_draw: self.draw()
def get_coords(self) -> List[List[float]]:
return self.points_coords
def get_qpolygon(self): return self.projected_triangle
app = QtWidgets.QApplication(sys.argv)
ui = Ui()
app.exec_()