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-rw-r--r--examples/datavisualization/volumetric/volumetric.cpp151
1 files changed, 49 insertions, 102 deletions
diff --git a/examples/datavisualization/volumetric/volumetric.cpp b/examples/datavisualization/volumetric/volumetric.cpp
index a379be3e..3475c85b 100644
--- a/examples/datavisualization/volumetric/volumetric.cpp
+++ b/examples/datavisualization/volumetric/volumetric.cpp
@@ -1,50 +1,16 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Data Visualization module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:GPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 or (at your option) any later version
-** approved by the KDE Free Qt Foundation. The licenses are as published by
-** the Free Software Foundation and appearing in the file LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "volumetric.h"
#include <QtDataVisualization/qvalue3daxis.h>
-#include <QtDataVisualization/q3dscene.h>
-#include <QtDataVisualization/q3dcamera.h>
-#include <QtDataVisualization/q3dtheme.h>
#include <QtDataVisualization/qcustom3dlabel.h>
-#include <QtDataVisualization/q3dscatter.h>
#include <QtDataVisualization/q3dinputhandler.h>
#include <QtCore/qmath.h>
-#include <QtWidgets/QLabel>
-#include <QtWidgets/QRadioButton>
-#include <QtWidgets/QSlider>
-#include <QtCore/QDebug>
-#include <QtGui/QOpenGLContext>
-
-const int lowDetailSize(128);
-const int mediumDetailSize(256);
-const int highDetailSize(512);
+#include <QtGui/qopenglcontext.h>
+
+const int lowDetailSize(256);
+const int mediumDetailSize(512);
+const int highDetailSize(1024);
const int colorTableSize(256);
const int layerDataSize(512);
const int mineShaftDiameter(1);
@@ -67,8 +33,6 @@ static bool isOpenGLES()
{
#if QT_CONFIG(opengles2)
return true;
-#elif (QT_VERSION < QT_VERSION_CHECK(5, 3, 0))
- return false;
#else
return QOpenGLContext::currentContext()->isOpenGLES();
#endif
@@ -76,36 +40,16 @@ static bool isOpenGLES()
VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
: m_graph(scatter),
- m_volumeItem(0),
m_sliceIndexX(lowDetailSize / 2),
m_sliceIndexY(lowDetailSize / 4),
- m_sliceIndexZ(lowDetailSize / 2),
- m_slicingX(false),
- m_slicingY(false),
- m_slicingZ(false),
- m_mediumDetailRB(0),
- m_highDetailRB(0),
- m_lowDetailData(0),
- m_mediumDetailData(0),
- m_highDetailData(0),
- m_mediumDetailIndex(0),
- m_highDetailIndex(0),
- m_mediumDetailShaftIndex(0),
- m_highDetailShaftIndex(0),
- m_sliceSliderX(0),
- m_sliceSliderY(0),
- m_sliceSliderZ(0),
- m_usingPrimaryTable(true),
- m_sliceLabelX(0),
- m_sliceLabelY(0),
- m_sliceLabelZ(0)
-{
- m_graph->activeTheme()->setType(Q3DTheme::ThemeQt);
+ m_sliceIndexZ(lowDetailSize / 2)
+{
+ m_graph->activeTheme()->setType(Q3DTheme::ThemePrimaryColors);
m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityNone);
- m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
- //! [6]
+ m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetIsometricLeft);
+ //! [0]
m_graph->setOrthoProjection(true);
- //! [6]
+ //! [0]
m_graph->activeTheme()->setBackgroundEnabled(false);
// Only allow zooming at the center and limit the zoom to 200% to avoid clipping issues
@@ -115,10 +59,12 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
toggleAreaAll(true);
if (!isOpenGLES()) {
- m_lowDetailData = new QList<uchar>(lowDetailSize * lowDetailSize * lowDetailSize / 2);
- m_mediumDetailData =
- new QList<uchar>(mediumDetailSize * mediumDetailSize * mediumDetailSize / 2);
- m_highDetailData = new QList<uchar>(highDetailSize * highDetailSize * highDetailSize / 2);
+ m_lowDetailData
+ = new QList<uchar>(lowDetailSize * lowDetailSize * lowDetailSize / 2);
+ m_mediumDetailData
+ = new QList<uchar>(mediumDetailSize * mediumDetailSize * mediumDetailSize / 2);
+ m_highDetailData
+ = new QList<uchar>(highDetailSize * highDetailSize * highDetailSize / 2);
initHeightMap(QStringLiteral(":/heightmaps/layer_ground.png"), m_groundLayer);
initHeightMap(QStringLiteral(":/heightmaps/layer_water.png"), m_waterLayer);
@@ -129,7 +75,7 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
createVolume(lowDetailSize, 0, lowDetailSize, m_lowDetailData);
excavateMineShaft(lowDetailSize, 0, m_mineShaftArray.size(), m_lowDetailData);
- //! [0]
+ //! [1]
m_volumeItem = new QCustom3DVolume;
// Adjust water level to zero with a minor tweak to y-coordinate position and scaling
m_volumeItem->setScaling(
@@ -142,16 +88,16 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
(m_graph->axisY()->max() + m_graph->axisY()->min()) / 2.0f,
(m_graph->axisZ()->max() + m_graph->axisZ()->min()) / 2.0f));
m_volumeItem->setScalingAbsolute(false);
- //! [0]
//! [1]
+ //! [2]
m_volumeItem->setTextureWidth(lowDetailSize);
m_volumeItem->setTextureHeight(lowDetailSize / 2);
m_volumeItem->setTextureDepth(lowDetailSize);
m_volumeItem->setTextureFormat(QImage::Format_Indexed8);
m_volumeItem->setTextureData(new QList<uchar>(*m_lowDetailData));
- //! [1]
+ //! [2]
- // Generate color tables.
+ // Generate color tables
m_colorTable1.resize(colorTableSize);
m_colorTable2.resize(colorTableSize);
@@ -182,13 +128,17 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
if (i < magmaColorsMax) {
m_colorTable2[i] = qRgba(((i - aboveWaterGroundColorsMax) * 2),
((i - aboveWaterGroundColorsMax) * 2),
- ((i - aboveWaterGroundColorsMax) * 2), 255);
+ ((i - aboveWaterGroundColorsMax) * 2),
+ 255);
} else if (i < underWaterGroundColorsMax) {
m_colorTable2[i] = qRgba(((i - aboveWaterGroundColorsMax) * 2),
((i - aboveWaterGroundColorsMax) * 2),
- ((i - aboveWaterGroundColorsMax) * 2), terrainTransparency);
+ ((i - aboveWaterGroundColorsMax) * 2),
+ terrainTransparency);
} else if (i < waterColorsMax) {
- m_colorTable2[i] = qRgba(0, 0, ((i - underWaterGroundColorsMax) * 2) + 120,
+ m_colorTable2[i] = qRgba(0,
+ 0,
+ ((i - underWaterGroundColorsMax) * 2) + 120,
terrainTransparency);
} else {
m_colorTable2[i] = qRgba(0, 0, 0, 0); // Not used
@@ -197,21 +147,21 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
m_colorTable2[airColorIndex] = qRgba(0, 0, 0, 0);
m_colorTable2[mineShaftColorIndex] = qRgba(255, 255, 0, 255);
- //! [2]
+ //! [3]
m_volumeItem->setColorTable(m_colorTable1);
- //! [2]
+ //! [3]
- //! [5]
+ //! [4]
m_volumeItem->setSliceFrameGaps(QVector3D(0.01f, 0.02f, 0.01f));
m_volumeItem->setSliceFrameThicknesses(QVector3D(0.0025f, 0.005f, 0.0025f));
m_volumeItem->setSliceFrameWidths(QVector3D(0.0025f, 0.005f, 0.0025f));
m_volumeItem->setDrawSliceFrames(false);
- //! [5]
+ //! [4]
handleSlicingChanges();
- //! [3]
+ //! [5]
m_graph->addCustomItem(m_volumeItem);
- //! [3]
+ //! [5]
m_timer.start(0);
} else {
@@ -295,13 +245,13 @@ void VolumetricModifier::adjustSliceX(int value)
if (m_sliceIndexX == m_volumeItem->textureWidth())
m_sliceIndexX--;
if (m_volumeItem->sliceIndexX() != -1)
- //! [7]
+ //! [6]
m_volumeItem->setSliceIndexX(m_sliceIndexX);
- //! [7]
- //! [9]
+ //! [6]
+ //! [8]
m_sliceLabelX->setPixmap(
QPixmap::fromImage(m_volumeItem->renderSlice(Qt::XAxis, m_sliceIndexX)));
- //! [9]
+ //! [8]
}
}
@@ -457,7 +407,7 @@ void VolumetricModifier::setPreserveOpacity(bool enabled)
void VolumetricModifier::setTransparentGround(bool enabled)
{
if (m_volumeItem) {
- //! [12]
+ //! [11]
int newAlpha = enabled ? terrainTransparency : 255;
for (int i = aboveWaterGroundColorsMin; i < underWaterGroundColorsMax; i++) {
QRgb oldColor1 = m_colorTable1.at(i);
@@ -469,7 +419,7 @@ void VolumetricModifier::setTransparentGround(bool enabled)
m_volumeItem->setColorTable(m_colorTable1);
else
m_volumeItem->setColorTable(m_colorTable2);
- //! [12]
+ //! [11]
adjustSliceX(m_sliceSliderX->value());
adjustSliceY(m_sliceSliderY->value());
adjustSliceZ(m_sliceSliderZ->value());
@@ -479,9 +429,9 @@ void VolumetricModifier::setTransparentGround(bool enabled)
void VolumetricModifier::setUseHighDefShader(bool enabled)
{
if (m_volumeItem) {
- //! [13]
+ //! [12]
m_volumeItem->setUseHighDefShader(enabled);
- //! [13]
+ //! [12]
}
}
@@ -493,9 +443,9 @@ void VolumetricModifier::adjustAlphaMultiplier(int value)
mult = float(value - 99) / 2.0f;
else
mult = float(value) / float(500 - value * 4);
- //! [11]
+ //! [9]
m_volumeItem->setAlphaMultiplier(mult);
- //! [11]
+ //! [9]
QString labelFormat = QStringLiteral("Alpha multiplier: %1");
m_alphaMultiplierLabel->setText(labelFormat.arg(
QString::number(m_volumeItem->alphaMultiplier(), 'f', 3)));
@@ -650,8 +600,6 @@ int VolumetricModifier::excavateMineShaft(int textureSize, int startIndex, int c
dataIndex += (textureSize * textureSize / 2) * shaftSize;
}
}
-
-
}
return endIndex;
}
@@ -660,7 +608,7 @@ void VolumetricModifier::excavateMineBlock(int textureSize, int dataIndex, int s
QList<uchar> *textureData)
{
for (int k = 0; k < size; k++) {
- int curIndex = dataIndex + (k * textureSize * textureSize / 2);
+ int curIndex = 0;
for (int l = 0; l < size; l++) {
curIndex = dataIndex + (k * textureSize * textureSize / 2)
+ (l * textureSize);
@@ -669,7 +617,6 @@ void VolumetricModifier::excavateMineBlock(int textureSize, int dataIndex, int s
(*textureData)[curIndex] = mineShaftColorIndex;
curIndex++;
}
-
}
}
}
@@ -679,9 +626,9 @@ void VolumetricModifier::handleSlicingChanges()
if (m_volumeItem) {
if (m_slicingX || m_slicingY || m_slicingZ) {
// Only show slices of selected dimensions
- //! [8]
+ //! [7]
m_volumeItem->setDrawSlices(true);
- //! [8]
+ //! [7]
m_volumeItem->setSliceIndexX(m_slicingX ? m_sliceIndexX : -1);
m_volumeItem->setSliceIndexY(m_slicingY ? m_sliceIndexY : -1);
m_volumeItem->setSliceIndexZ(m_slicingZ ? m_sliceIndexZ : -1);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 09:43:04 +0000