1 files changed, 51 insertions, 0 deletions
diff --git a/examples/quick3d/customgeometry/examplepoint.py b/examples/quick3d/customgeometry/examplepoint.py
new file mode 100644
index 000000000..0360806ae
--- /dev/null
+++ b/examples/quick3d/customgeometry/examplepoint.py
@@ -0,0 +1,51 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+import random
+
+import numpy as np
+from PySide6.QtGui import QVector3D
+from PySide6.QtQml import QmlElement
+from PySide6.QtQuick3D import QQuick3DGeometry
+
+QML_IMPORT_NAME = "ExamplePointGeometry"
+QML_IMPORT_MAJOR_VERSION = 1
+
+
+@QmlElement
+class ExamplePointGeometry(QQuick3DGeometry):
+    def __init__(self, parent=None):
+        QQuick3DGeometry.__init__(self, parent)
+        self.updateData()
+
+    def updateData(self):
+        self.clear()
+
+        # We use numpy arrays to handle the vertex data,
+        # but still we need to consider the 'sizeof(float)'
+        # from C to set the Stride, and Attributes for the
+        # underlying Qt methods
+        FLOAT_SIZE = 4
+        NUM_POINTS = 2000
+        stride = 3
+
+        vertexData = np.zeros(NUM_POINTS * stride, dtype=np.float32)
+
+        p = 0
+        for i in range(NUM_POINTS):
+            vertexData[p] = random.uniform(-5.0, +5.0)
+            p += 1
+            vertexData[p] = random.uniform(-5.0, +5.0)
+            p += 1
+            vertexData[p] = 0.0
+            p += 1
+
+        self.setVertexData(vertexData.tobytes())
+        self.setStride(stride * FLOAT_SIZE)
+        self.setBounds(QVector3D(-5.0, -5.0, 0.0), QVector3D(+5.0, +5.0, 0.0))
+
+        self.setPrimitiveType(QQuick3DGeometry.PrimitiveType.Points)
+
+        self.addAttribute(
+            QQuick3DGeometry.Attribute.PositionSemantic, 0, QQuick3DGeometry.Attribute.F32Type
+        )