reorg

pyqt/test002.py

@@ -0,0 +1,85 @@
+import numpy as np
+from OpenGL import GL, GLU
+from PyQt5.QtWidgets import QOpenGLWidget, QApplication
+
+global eyeX, eyeY, eyeZ
+
+
+# gluLookAt 'eye' coordinates
+eyeX = 0.0 
+eyeY = 0.0
+eyeZ = 10.0
+
+class OpenGLWidget(QOpenGLWidget):
+
+    def initializeGL(self):
+
+        GL.glClearColor(0,0,0,1);
+#         GL.glEnable(GL.GL_DEPTH_TEST);
+#         GL.glEnable(GL.GL_LIGHT0);
+#         GL.glEnable(GL.GL_LIGHTING);
+#         GL.glColorMaterial(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT_AND_DIFFUSE);
+#         GL.glEnable(GL.GL_COLOR_MATERIAL);
+        
+        GL.glMatrixMode(GL.GL_PROJECTION);
+        GL.glOrtho(-10.0, 10.0, -10.0, 10.0, -10.0, 10.0)
+        GL.glClear(GL.GL_COLOR_BUFFER_BIT)
+        GL.glMatrixMode(GL.GL_MODELVIEW);
+        GL.glLoadIdentity();
+        
+        #GL.glClearColor(1.0, 0.0, 1.0, 0.0);
+#         vertices = np.array([0.0, 1.0, -1.0, -1.0, 1.0, -1.0], dtype=np.float32)
+# 
+#         bufferId = GL.glGenBuffers(1)
+#         GL.glBindBuffer(GL.GL_ARRAY_BUFFER, bufferId)
+#         GL.glBufferData(GL.GL_ARRAY_BUFFER, vertices.nbytes, vertices, GL.GL_STATIC_DRAW)
+# 
+#         GL.glEnableVertexAttribArray(0)
+#         GL.glVertexAttribPointer(0, 2, GL.GL_FLOAT, GL.GL_FALSE, 0, None)
+
+    def paintGL(self):
+#         GL.glDrawArrays(GL.GL_TRIANGLES, 0, 3)
+        GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
+    
+        GLU.gluLookAt(eyeX, eyeY, eyeZ,
+                      0.0, 0.0, 0.0,
+                      0.0, 1.0, 0.0);
+#         GL.glBegin(GL.GL_TRIANGLES);
+#         GL.glColor3f(1.0, 0.0, 0.0);
+#         GL.glVertex3f(-0.5, -0.5, 0);
+#         GL.glColor3f(0.0, 1.0, 0.0);
+#         GL.glVertex3f( 0.5, -0.5, 0);
+#         GL.glColor3f(0.0, 0.0, 1.0);
+#         GL.glVertex3f( 0.0,  0.5, 0);
+#         GL.glEnd();
+
+        from math import sin, cos
+        radius = 0.5
+        halfLength = 3.0
+        slices = 10
+        
+        for i in range(slices):
+            theta = float(i) * 2.0 * 3.14 / float(slices)
+            nextTheta = float(i + 1) * 2.0 * 3.14 / float(slices)
+            
+            GL.glColor3f(1.0, 0.0, 0.0)
+            GL.glBegin(GL.GL_TRIANGLE_STRIP)
+            
+            GL.glVertex3f(0.0, halfLength, 0.0)
+            GL.glVertex3f(radius*cos(theta), halfLength, radius*sin(theta))
+            GL.glVertex3f (radius*cos(nextTheta), halfLength, radius*sin(nextTheta))
+            
+            GL.glVertex3f (radius*cos(nextTheta), -halfLength, radius*sin(nextTheta))
+            GL.glVertex3f(radius*cos(theta), -halfLength, radius*sin(theta))
+            GL.glVertex3f(0.0, -halfLength, 0.0)
+            
+            GL.glEnd()
+
+
+app = QApplication([])
+widget = OpenGLWidget()
+widget.show()
+
+app.exec_()
+
+