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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qtgraphs_helper.h"
#include <sbknumpyview.h>
#include <QtCore/QDebug>
namespace QtGraphsHelper {
template <class T>
static void populateArray(double xStart, double deltaX, double zStart, double deltaZ,
qsizetype xSize, qsizetype zSize, qsizetype zStrideBytes,
const T *data, QSurfaceDataArray *result)
{
result->reserve(zSize);
const qsizetype zStride = zStrideBytes / sizeof(T);
double z = zStart;
for (qsizetype zi = 0; zi < zSize; ++zi) {
QSurfaceDataRow row;
row.reserve(xSize);
double x = xStart;
auto *rowDataEnd = data + xSize;
for (auto *d = data; d < rowDataEnd; ++d) {
row.append(QSurfaceDataItem(QVector3D(x, *d, z)));
x += deltaX;
}
result->append(row);
data += zStride;
z += deltaZ;
}
}
QSurfaceDataArray surfaceDataFromNp(double xStart, double deltaX, double zStart, double deltaZ,
PyObject *pyData)
{
static const char funcName[] = "QSurfaceDataProxy.resetArrayNp";
QSurfaceDataArray result;
auto view = Shiboken::Numpy::View::fromPyObject(pyData);
if (!view) {
PyErr_Format(PyExc_TypeError, "Invalid array passed to %s", funcName);
return result;
}
if (view.ndim != 2) {
PyErr_Format(PyExc_TypeError, "%s expects a 2 dimensional array (%d)", view.ndim);
return result;
}
const qsizetype zSize = view.dimensions[0];
const qsizetype xSize = view.dimensions[1];
if (zSize == 0 || xSize == 0)
return result;
switch (view.type) {
case Shiboken::Numpy::View::Int16:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const int16_t *>(view.data), &result);
break;
case Shiboken::Numpy::View::Unsigned16:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const uint16_t *>(view.data), &result);
break;
case Shiboken::Numpy::View::Int:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const int *>(view.data), &result);
break;
case Shiboken::Numpy::View::Unsigned:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const unsigned *>(view.data), &result);
break;
case Shiboken::Numpy::View::Int64:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const int64_t *>(view.data), &result);
break;
case Shiboken::Numpy::View::Unsigned64:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const uint64_t *>(view.data), &result);
break;
case Shiboken::Numpy::View::Float:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const float *>(view.data), &result);
break;
case Shiboken::Numpy::View::Double:
populateArray(xStart, deltaX, zStart, deltaZ, xSize, zSize, view.stride[0],
reinterpret_cast<const double *>(view.data), &result);
break;
}
return result;
}
} // namespace QtGraphsHelper
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