opengl安装

pip install -U pyopengl

opengl显示bvh

https://github.com/chenzhike110/BVH-visualizer

opengl pyqt 显示2d骨骼

from PyQt5.QtWidgets import QApplication, QMainWindow, QOpenGLWidget
from PyQt5.QtCore import Qt
import OpenGL.GL as gl
import OpenGL.GLU as glu
import sys
 
class OpenGLWidget(QOpenGLWidget):
    def initializeGL(self):
        gl.glClearColor(0.0, 0.0, 0.0, 1.0)
        gl.glEnable(gl.GL_DEPTH_TEST)
        self.modelPosition = [0.0, 0.0, -10.0]  # 初始位置
        self.moveStep = 0.5  # 每次移动的步长
        self.setFocusPolicy(Qt.StrongFocus)
 
    def keyPressEvent(self, event):
        key = event.key()
        if key == Qt.Key_Right:
            self.modelPosition[0] += self.moveStep  # 向右移动
        elif key == Qt.Key_Left:
            self.modelPosition[0] -= self.moveStep  # 向左移动
        elif key == Qt.Key_Up:
            self.modelPosition[1] += self.moveStep  # 向上移动
        elif key == Qt.Key_Down:
            self.modelPosition[1] -= self.moveStep  # 向下移动
 
        self.update()  # 更新OpenGL小部件以重新渲染模型
    def mousePressEvent(self, event):
        if event.button() == Qt.RightButton:  # 检测右键点击
            self.modelPosition[0] += self.moveStep  # 向右移动模型
            self.update()  # 更新OpenGL小部件以重新渲染模型
    def resizeGL(self, width, height):
        gl.glViewport(0, 0, width, height)
        gl.glMatrixMode(gl.GL_PROJECTION)
        gl.glLoadIdentity()
        glu.gluPerspective(45, width / height, 0.1, 50.0)
        gl.glMatrixMode(gl.GL_MODELVIEW)
 
 
    def paintGL(self):
        gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
        gl.glLoadIdentity()
        gl.glTranslatef(*self.modelPosition)  # 使用模型位置变量
 
        self.drawSkeleton()
 
    # def paintGL(self):
    #     gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
    #     gl.glLoadIdentity()
    #     gl.glTranslatef(0.0, 0.0, -10.0)
    #
    #     self.drawSkeleton()
 
    def drawSkeleton(self):
        # 定义骨骼关键点
        joints = [
            (0, 0, 0),  # 身体中心
            (-1, 2, 0),  # 左手
            (1, 2, 0),   # 右手
            (0, -2, 0),  # 腿部中心
            (-1, -4, 0), # 左脚
            (1, -4, 0)   # 右脚
        ]
 
        # 定义骨骼连接
        bones = [
            (0, 1),
            (0, 2),
            (0, 3),
            (3, 4),
            (3, 5)
        ]
 
        # 绘制关键点
        gl.glPointSize(10)
        gl.glBegin(gl.GL_POINTS)
        for joint in joints:
            gl.glVertex3fv(joint)
        gl.glEnd()
 
        # 绘制骨骼
        gl.glBegin(gl.GL_LINES)
        for bone in bones:
            for vertex in bone:
                gl.glVertex3fv(joints[vertex])
        gl.glEnd()
 
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('PyQt OpenGL 3D Skeleton Example')
        self.setGeometry(300, 300, 800, 600)
        self.initUI()
 
    def initUI(self):
        self.openglWidget = OpenGLWidget(self)
        self.setCentralWidget(self.openglWidget)
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())

显示文字：

2024.02.23测试成功，虽然变量引用报错 GLUT_BITMAP_8_BY_13

from OpenGL.GL import *
from OpenGL.GLUT import *
from OpenGL.GLU import *
 
def draw_text(x, y, text):
    glRasterPos2f(x, y)
    for character in text:
        glutBitmapCharacter(GLUT_BITMAP_8_BY_13, ord(character))
 
def display():
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
    glLoadIdentity()
    draw_text(-0.9, 0.9, "Hello, OpenGL!")
    glutSwapBuffers()
 
glutInit()
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH)
glutInitWindowSize(800, 600)
glutInitWindowPosition(0, 0)
glutCreateWindow(b"OpenGL Text Example")
glutDisplayFunc(display)
glutMainLoop()

显示3d效果：

from PyQt5.QtWidgets import QApplication, QMainWindow, QOpenGLWidget
from PyQt5.QtCore import Qt
import OpenGL.GL as gl
import OpenGL.GLU as glu
import sys
 
class OpenGLWidget(QOpenGLWidget):
    def initializeGL(self):
        gl.glClearColor(0.0, 0.0, 0.0, 1.0)
        gl.glEnable(gl.GL_DEPTH_TEST)
 
    def resizeGL(self, width, height):
        gl.glViewport(0, 0, width, height)
        gl.glMatrixMode(gl.GL_PROJECTION)
        gl.glLoadIdentity()
        glu.gluPerspective(45, width / height, 0.1, 50.0)
        gl.glMatrixMode(gl.GL_MODELVIEW)
 
    def paintGL(self):
        gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
        gl.glLoadIdentity()
        gl.glTranslatef(0.0, 0.0, -5.0)
 
        self.drawCube()
 
    def drawCube(self):
        # 绘制一个简单的3D立方体
        vertices = [
            [-1, -1, -1],
            [ 1, -1, -1],
            [ 1,  1, -1],
            [-1,  1, -1],
            [-1, -1,  1],
            [ 1, -1,  1],
            [ 1,  1,  1],
            [-1,  1,  1]
        ]
 
        edges = [
            (0, 1), (1, 2), (2, 3), (3, 0),
            (4, 5), (5, 6), (6, 7), (7, 4),
            (0, 4), (1, 5), (2, 6), (3, 7)
        ]
 
        gl.glColor3f(1.0, 1.0, 1.0)
        gl.glBegin(gl.GL_LINES)
        for edge in edges:
            for vertex in edge:
                gl.glVertex3fv(vertices[vertex])
        gl.glEnd()
 
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('PyQt OpenGL 3D Cube Example')
        self.setGeometry(300, 300, 800, 600)
        self.initUI()
 
    def initUI(self):
        self.openglWidget = OpenGLWidget(self)
        self.setCentralWidget(self.openglWidget)
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())