Minimal Surface Example

The example shows the minimal code to create a surface.

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main.py

# Copyright (C) 2023 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

import sys

from PySide6.QtCore import QSize
from PySide6.QtGui import QVector3D
from PySide6.QtGraphs import (Q3DSurface, QSurfaceDataItem,
                              QSurface3DSeries)
from PySide6.QtWidgets import QApplication
from PySide6.QtQuickWidgets import QQuickWidget


DESCRIPTION = """Minimal Qt Graphs Surface Example

Use the mouse wheel to zoom. Rotate using the right mouse button.
"""


if __name__ == '__main__':
    app = QApplication(sys.argv)

    print(DESCRIPTION)

    surface = Q3DSurface()
    axis = surface.axisX()
    axis.setTitle("X")
    axis.setTitleVisible(True)
    axis = surface.axisY()
    axis.setTitle("Y")
    axis.setTitleVisible(True)
    axis = surface.axisZ()
    axis.setTitle("Z")
    axis.setTitleVisible(True)

    data = []
    data_row1 = [QSurfaceDataItem(QVector3D(0, 0.1, 0.5)),
                 QSurfaceDataItem(QVector3D(1, 0.5, 0.5))]
    data.append(data_row1)
    data_row2 = [QSurfaceDataItem(QVector3D(0, 1.8, 1)),
                 QSurfaceDataItem(QVector3D(1, 1.2, 1))]
    data.append(data_row2)

    series = QSurface3DSeries()
    series.dataProxy().resetArray(data)
    surface.addSeries(series)

    available_height = app.primaryScreen().availableGeometry().height()
    width = available_height * 4 / 5
    surface.resize(QSize(width, width))
    surface.setResizeMode(QQuickWidget.SizeRootObjectToView)
    surface.show()

    sys.exit(app.exec())