Krita Source Code Documentation
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KisLiquifyTransformWorker Class Reference

#include <kis_liquify_transform_worker.h>

+ Inheritance diagram for KisLiquifyTransformWorker:

Public Member Functions

QRectF accumulatedStrokesBounds () const
 
QRect approxChangeRect (const QRect &rc)
 
QRect approxNeedRect (const QRect &rc, const QRect &fullBounds)
 
QSize gridSize () const
 
bool isIdentity () const
 
 KisLiquifyTransformWorker (const KisLiquifyTransformWorker &rhs)
 
 KisLiquifyTransformWorker (const QRect &srcBounds, KoUpdater *progress, int pixelPrecision=8)
 
bool operator== (const KisLiquifyTransformWorker &other) const
 
const QVector< QPointF > & originalPoints () const
 
int pointToIndex (const QPoint &cellPt)
 
void preparePoints ()
 
 Private (const QRect &_srcBounds, KoUpdater *_progress, int _pixelPrecision)
 
template<class ProcessOp >
void processTransformedPixels (ProcessOp op, const QPointF &base, qreal sigma, bool useWashMode, qreal flow)
 
template<class ProcessOp >
void processTransformedPixelsBuildUp (ProcessOp op, const QPointF &base, qreal sigma)
 
template<class ProcessOp >
void processTransformedPixelsWash (ProcessOp op, const QPointF &base, qreal sigma, qreal flow)
 
void rotatePoints (const QPointF &base, qreal angle, qreal sigma, bool useWashMode, qreal flow)
 
void run (KisPaintDeviceSP srcDevice, KisPaintDeviceSP dstDevice)
 
QImage runOnQImage (const QImage &srcImage, const QPointF &srcImageOffset, const QTransform &imageToThumbTransform, QPointF *newOffset)
 
void scalePoints (const QPointF &base, qreal scale, qreal sigma, bool useWashMode, qreal flow)
 
void toXML (QDomElement *e) const
 
QVector< QPointF > & transformedPoints ()
 
void transformSrcAndDst (const QTransform &t)
 
void translate (const QPointF &offset)
 
void translateDstSpace (const QPointF &offset)
 
void translatePoints (const QPointF &base, const QPointF &offset, qreal sigma, bool useWashMode, qreal flow)
 
void undoPoints (const QPointF &base, qreal amount, qreal sigma)
 
 ~KisLiquifyTransformWorker ()
 
- Public Member Functions inherited from Private
 Private (KisCanvas2 *c)
 

Static Public Member Functions

static KisLiquifyTransformWorkerfromXML (const QDomElement &e)
 

Public Attributes

QRectF accumulatedBrushStrokes
 
QSize gridSize
 
QVector< QPointF > originalPoints
 
KisSpatialContainer originalPointsContainer
 
int pixelPrecision
 
KoUpdaterprogress
 
QRect srcBounds
 
QVector< QPointF > transformedPoints
 
KisSpatialContainer transformedPointsContainer
 
- Public Attributes inherited from Private
KisCanvas2canvas
 
int displayedFrame
 
int intendedFrame
 

Private Attributes

const QScopedPointer< Privatem_d
 

Detailed Description

Definition at line 16 of file kis_liquify_transform_worker.cpp.

Constructor & Destructor Documentation

◆ KisLiquifyTransformWorker() [1/2]

KisLiquifyTransformWorker::KisLiquifyTransformWorker ( const QRect & srcBounds,
KoUpdater * progress,
int pixelPrecision = 8 )

Definition at line 66 of file kis_liquify_transform_worker.cpp.

70{
72
73 // TODO: implement 'progress' stuff
74 m_d->preparePoints();
75}
#define KIS_ASSERT_RECOVER_RETURN(cond)
Definition kis_assert.h:75
const QScopedPointer< Private > m_d

References KIS_ASSERT_RECOVER_RETURN, m_d, and srcBounds.

◆ KisLiquifyTransformWorker() [2/2]

KisLiquifyTransformWorker::KisLiquifyTransformWorker ( const KisLiquifyTransformWorker & rhs)

Definition at line 77 of file kis_liquify_transform_worker.cpp.

78 : m_d(new Private(*rhs.m_d.data()))
79{
80}

◆ ~KisLiquifyTransformWorker()

KisLiquifyTransformWorker::~KisLiquifyTransformWorker ( )

Definition at line 82 of file kis_liquify_transform_worker.cpp.

83{
84}

Member Function Documentation

◆ accumulatedStrokesBounds()

QRectF KisLiquifyTransformWorker::accumulatedStrokesBounds ( ) const

Definition at line 463 of file kis_liquify_transform_worker.cpp.

464{
465 return m_d->accumulatedBrushStrokes;
466}

References m_d.

◆ approxChangeRect()

QRect KisLiquifyTransformWorker::approxChangeRect ( const QRect & rc)

Definition at line 450 of file kis_liquify_transform_worker.cpp.

451{
452 const qreal margin = 0.05;
453 QRect resultRect = m_d->transformedPointsContainer.exactBounds().toRect();
454 return KisAlgebra2D::blowRect(resultRect | rc, margin);
455}
Rect blowRect(const Rect &rect, qreal coeff)

References KisAlgebra2D::blowRect(), and m_d.

◆ approxNeedRect()

QRect KisLiquifyTransformWorker::approxNeedRect ( const QRect & rc,
const QRect & fullBounds )

Definition at line 457 of file kis_liquify_transform_worker.cpp.

458{
459 Q_UNUSED(rc);
460 return fullBounds;
461}

◆ fromXML()

KisLiquifyTransformWorker * KisLiquifyTransformWorker::fromXML ( const QDomElement & e)
static

Definition at line 592 of file kis_liquify_transform_worker.cpp.

593{
594 QDomElement liquifyEl;
595
596 QRect srcBounds;
599 int pixelPrecision;
600 QSize gridSize;
601
602 bool result = false;
603
604
605 result =
606 KisDomUtils::findOnlyElement(e, "liquify_points", &liquifyEl) &&
607
608 KisDomUtils::loadValue(liquifyEl, "srcBounds", &srcBounds) &&
609 KisDomUtils::loadValue(liquifyEl, "originalPoints", &originalPoints) &&
610 KisDomUtils::loadValue(liquifyEl, "transformedPoints", &transformedPoints) &&
611 KisDomUtils::loadValue(liquifyEl, "pixelPrecision", &pixelPrecision) &&
612 KisDomUtils::loadValue(liquifyEl, "gridSize", &gridSize);
613
614 if (!result) {
615 warnKrita << "WARNING: Failed to load liquify worker from XML";
616 return new KisLiquifyTransformWorker(QRect(0,0,1024, 1024), 0, 8);
617 }
618
621
622 const int numPoints = originalPoints.size();
623
624 if (numPoints != transformedPoints.size() ||
625 numPoints != worker->m_d->originalPoints.size() ||
626 gridSize != worker->m_d->gridSize) {
627 warnKrita << "WARNING: Inconsistent number of points!";
628 warnKrita << ppVar(originalPoints.size());
631 warnKrita << ppVar(worker->m_d->originalPoints.size());
632 warnKrita << ppVar(worker->m_d->transformedPoints.size());
633 warnKrita << ppVar(worker->m_d->gridSize);
634
635 return worker;
636 }
637
638 QRectF changedRect = QRectF();
639
640 for (int i = 0; i < numPoints; i++) {
641 worker->m_d->originalPoints[i] = originalPoints[i];
642 worker->m_d->transformedPoints[i] = transformedPoints[i];
646 }
647 }
648 changedRect = kisGrowRect(changedRect, pixelPrecision);
649
650 worker->m_d->transformedPointsContainer.initializeWith(worker->m_d->transformedPoints);
651 worker->m_d->originalPointsContainer.initializeWith(worker->m_d->originalPoints);
652
653 worker->m_d->accumulatedBrushStrokes = changedRect;
654
655
656 return worker;
657}
#define warnKrita
Definition kis_debug.h:87
#define ppVar(var)
Definition kis_debug.h:155
T kisGrowRect(const T &rect, U offset)
Definition kis_global.h:186
void accumulateBounds(const Point &pt, Rect *bounds)
bool fuzzyPointCompare(const QPointF &p1, const QPointF &p2)
bool findOnlyElement(const QDomElement &parent, const QString &tag, QDomElement *el, QStringList *errorMessages)
bool loadValue(const QDomElement &e, float *v)
KisLiquifyTransformWorker(const QRect &srcBounds, KoUpdater *progress, int pixelPrecision=8)

References KisAlgebra2D::accumulateBounds(), KisDomUtils::findOnlyElement(), KisAlgebra2D::fuzzyPointCompare(), gridSize, kisGrowRect(), KisLiquifyTransformWorker(), KisDomUtils::loadValue(), m_d, originalPoints, pixelPrecision, ppVar, srcBounds, transformedPoints, and warnKrita.

◆ gridSize()

QSize KisLiquifyTransformWorker::gridSize ( ) const

◆ isIdentity()

bool KisLiquifyTransformWorker::isIdentity ( ) const

Definition at line 106 of file kis_liquify_transform_worker.cpp.

107{
108 const qreal eps = 1e-6;
109 return KisAlgebra2D::fuzzyPointCompare(m_d->originalPoints, m_d->transformedPoints, eps);
110}
const qreal eps

References eps, KisAlgebra2D::fuzzyPointCompare(), and m_d.

◆ operator==()

bool KisLiquifyTransformWorker::operator== ( const KisLiquifyTransformWorker & other) const

Definition at line 86 of file kis_liquify_transform_worker.cpp.

87{
88 bool result =
89 m_d->srcBounds == other.m_d->srcBounds &&
90 m_d->pixelPrecision == other.m_d->pixelPrecision &&
91 m_d->gridSize == other.m_d->gridSize &&
92 m_d->originalPoints.size() == other.m_d->originalPoints.size() &&
93 m_d->transformedPoints.size() == other.m_d->transformedPoints.size();
94
95 if (!result) return false;
96
97 const qreal eps = 1e-6;
98
99 result =
100 KisAlgebra2D::fuzzyPointCompare(m_d->originalPoints, other.m_d->originalPoints, eps) &&
101 KisAlgebra2D::fuzzyPointCompare(m_d->transformedPoints, other.m_d->transformedPoints, eps);
102
103 return result;
104}

References eps, KisAlgebra2D::fuzzyPointCompare(), and m_d.

◆ originalPoints()

const QVector< QPointF > & KisLiquifyTransformWorker::originalPoints ( ) const

◆ pointToIndex()

int KisLiquifyTransformWorker::pointToIndex ( const QPoint & cellPt)

Definition at line 112 of file kis_liquify_transform_worker.cpp.

113{
114 return GridIterationTools::pointToIndex(cellPt, m_d->gridSize);
115}
int pointToIndex(const QPoint &cellPt, const QSize &gridSize)

References m_d, and GridIterationTools::pointToIndex().

◆ preparePoints()

void KisLiquifyTransformWorker::preparePoints ( )

◆ Private()

KisLiquifyTransformWorker::Private ( const QRect & _srcBounds,
KoUpdater * _progress,
int _pixelPrecision )
inline

Definition at line 18 of file kis_liquify_transform_worker.cpp.

21 : srcBounds(_srcBounds)
22 , originalPointsContainer(_srcBounds)
23 , transformedPointsContainer(_srcBounds)
24 , progress(_progress)
25 , pixelPrecision(_pixelPrecision)
26 {
27 }

◆ processTransformedPixels()

template<class ProcessOp >
void KisLiquifyTransformWorker::processTransformedPixels ( ProcessOp op,
const QPointF & base,
qreal sigma,
bool useWashMode,
qreal flow )

◆ processTransformedPixelsBuildUp()

template<class ProcessOp >
void KisLiquifyTransformWorker::processTransformedPixelsBuildUp ( ProcessOp op,
const QPointF & base,
qreal sigma )

◆ processTransformedPixelsWash()

template<class ProcessOp >
void KisLiquifyTransformWorker::processTransformedPixelsWash ( ProcessOp op,
const QPointF & base,
qreal sigma,
qreal flow )

◆ rotatePoints()

void KisLiquifyTransformWorker::rotatePoints ( const QPointF & base,
qreal angle,
qreal sigma,
bool useWashMode,
qreal flow )

Definition at line 404 of file kis_liquify_transform_worker.cpp.

409{
410 RotateOp op(angle);
411 m_d->processTransformedPixels(op, base, sigma, useWashMode, flow);
412}

References m_d.

◆ run()

void KisLiquifyTransformWorker::run ( KisPaintDeviceSP srcDevice,
KisPaintDeviceSP dstDevice )

Definition at line 414 of file kis_liquify_transform_worker.cpp.

415{
416 KIS_SAFE_ASSERT_RECOVER_RETURN(*srcDevice->colorSpace() == *dstDevice->colorSpace());
417
418 dstDevice->clear();
419
420 using namespace GridIterationTools;
421 QRect correctSubGrid = calculateCorrectSubGrid(m_d->srcBounds, m_d->pixelPrecision, m_d->accumulatedBrushStrokes, m_d->gridSize);
422
423 PaintDevicePolygonOp polygonOp(srcDevice, dstDevice);
424 RegularGridIndexesOp indexesOp(m_d->gridSize);
425
426 bool canMergeRects = GridIterationTools::canProcessRectsInRandomOrder(indexesOp, m_d->transformedPoints, correctSubGrid);
427 polygonOp.setCanMergeRects(canMergeRects);
428
429#ifdef DEBUG_PAINTING_POLYGONS
430 polygonOp.setDebugColor(Qt::red);
431#endif
432
433 iterateThroughGrid<AlwaysCompletePolygonPolicy>(polygonOp, indexesOp,
434 m_d->gridSize,
435 m_d->originalPoints,
436 m_d->transformedPoints,
437 correctSubGrid);
438 QList<QRectF> areasToCopy = cutOutSubgridFromBounds(correctSubGrid, m_d->srcBounds, m_d->gridSize, m_d->originalPoints);
439#ifdef DEBUG_PAINTING_POLYGONS
440 QList<QColor> colors = {Qt::blue, Qt::green, Qt::yellow, Qt::black};
441#endif
442 for (int i = 0; i < areasToCopy.length(); i++) {
443#ifdef DEBUG_PAINTING_POLYGONS
444 polygonOp.setDebugColor(colors[i]);
445#endif
446 polygonOp.fastCopyArea(areasToCopy[i].toRect(), false);
447 }
448}
virtual void clear()
const KoColorSpace * colorSpace() const
#define KIS_SAFE_ASSERT_RECOVER_RETURN(cond)
Definition kis_assert.h:128
bool canProcessRectsInRandomOrder(IndexesOp &indexesOp, const QVector< QPointF > &transformedPoints, QSize grid)
QList< QRectF > cutOutSubgridFromBounds(QRect subGrid, QRect srcBounds, const QSize &gridSize, const QVector< QPointF > &originalPoints)
QRect calculateCorrectSubGrid(QRect originalBoundsForGrid, int pixelPrecision, QRectF currentBounds, QSize gridSize)

References GridIterationTools::canProcessRectsInRandomOrder(), KisPaintDevice::clear(), KisPaintDevice::colorSpace(), GridIterationTools::PaintDevicePolygonOp::fastCopyArea(), KIS_SAFE_ASSERT_RECOVER_RETURN, m_d, and GridIterationTools::PaintDevicePolygonOp::setCanMergeRects().

◆ runOnQImage()

QImage KisLiquifyTransformWorker::runOnQImage ( const QImage & srcImage,
const QPointF & srcImageOffset,
const QTransform & imageToThumbTransform,
QPointF * newOffset )

Definition at line 504 of file kis_liquify_transform_worker.cpp.

508{
509 KIS_ASSERT_RECOVER(m_d->originalPoints.size() == m_d->transformedPoints.size()) {
510 return QImage();
511 }
512
513 KIS_ASSERT_RECOVER(!srcImage.isNull()) {
514 return QImage();
515 }
516
517 KIS_ASSERT_RECOVER(srcImage.format() == QImage::Format_ARGB32) {
518 return QImage();
519 }
520
521 QVector<QPointF> originalPointsLocal(m_d->originalPoints);
522 QVector<QPointF> transformedPointsLocal(m_d->transformedPoints);
523
524 PointMapFunction mapFunc = bindPointMapTransform(imageToThumbTransform);
525
526 std::transform(originalPointsLocal.begin(), originalPointsLocal.end(),
527 originalPointsLocal.begin(), mapFunc);
528
529 std::transform(transformedPointsLocal.begin(), transformedPointsLocal.end(),
530 transformedPointsLocal.begin(), mapFunc);
531
532 QRectF dstBounds;
533 Q_FOREACH (const QPointF &pt, transformedPointsLocal) {
534 KisAlgebra2D::accumulateBounds(pt, &dstBounds);
535 }
536
537 const QRectF srcBounds(srcImageOffset, srcImage.size());
538 dstBounds |= srcBounds;
539
540 QPointF dstQImageOffset = dstBounds.topLeft();
541 *newOffset = dstQImageOffset;
542
543 QRect dstBoundsI = dstBounds.toAlignedRect();
544
545 QImage dstImage(dstBoundsI.size(), srcImage.format());
546 dstImage.fill(0);
547
548 GridIterationTools::QImagePolygonOp polygonOp(srcImage, dstImage, srcImageOffset, dstQImageOffset);
550
551
552 QRect correctSubGrid = GridIterationTools::calculateCorrectSubGrid(m_d->srcBounds, m_d->pixelPrecision, m_d->accumulatedBrushStrokes, m_d->gridSize);
553 bool canMergeRects = GridIterationTools::canProcessRectsInRandomOrder(indexesOp, m_d->transformedPoints, correctSubGrid);
554 polygonOp.setCanMergeRects(canMergeRects);
555
556
557 GridIterationTools::iterateThroughGrid<GridIterationTools::AlwaysCompletePolygonPolicy>(polygonOp, indexesOp,
558 m_d->gridSize,
559 originalPointsLocal,
560 transformedPointsLocal,
561 correctSubGrid);
562
563
564 QList<QRectF> areasToCopy = GridIterationTools::cutOutSubgridFromBounds(correctSubGrid, m_d->srcBounds, m_d->gridSize, m_d->originalPoints);
565 polygonOp.setCanMergeRects(false);
566 const qreal eps = 0.001;
567 for (int i = 0; i < areasToCopy.length(); i++) {
568 QPolygonF transformed = imageToThumbTransform.map(QPolygonF(areasToCopy[i]));
570 polygonOp.fastCopyArea(transformed.boundingRect().toRect());
571 } else {
572 polygonOp.operator()(transformed, transformed);
573 }
574 }
575 return dstImage;
576}
#define KIS_ASSERT_RECOVER(cond)
Definition kis_assert.h:55
std::function< QPointF(const QPointF &)> PointMapFunction
PointMapFunction bindPointMapTransform(const QTransform &transform)
bool isPolygonPixelAlignedRect(const Polygon &poly, Difference tolerance)

References KisAlgebra2D::accumulateBounds(), bindPointMapTransform(), GridIterationTools::calculateCorrectSubGrid(), GridIterationTools::canProcessRectsInRandomOrder(), GridIterationTools::cutOutSubgridFromBounds(), eps, GridIterationTools::QImagePolygonOp::fastCopyArea(), KisAlgebra2D::isPolygonPixelAlignedRect(), KIS_ASSERT_RECOVER, m_d, GridIterationTools::QImagePolygonOp::setCanMergeRects(), and srcBounds.

◆ scalePoints()

void KisLiquifyTransformWorker::scalePoints ( const QPointF & base,
qreal scale,
qreal sigma,
bool useWashMode,
qreal flow )

Definition at line 394 of file kis_liquify_transform_worker.cpp.

399{
400 ScaleOp op(scale);
401 m_d->processTransformedPixels(op, base, sigma, useWashMode, flow);
402}

References m_d.

◆ toXML()

void KisLiquifyTransformWorker::toXML ( QDomElement * e) const

Definition at line 579 of file kis_liquify_transform_worker.cpp.

580{
581 QDomDocument doc = e->ownerDocument();
582 QDomElement liqEl = doc.createElement("liquify_points");
583 e->appendChild(liqEl);
584
585 KisDomUtils::saveValue(&liqEl, "srcBounds", m_d->srcBounds);
586 KisDomUtils::saveValue(&liqEl, "originalPoints", m_d->originalPoints);
587 KisDomUtils::saveValue(&liqEl, "transformedPoints", m_d->transformedPoints);
588 KisDomUtils::saveValue(&liqEl, "pixelPrecision", m_d->pixelPrecision);
589 KisDomUtils::saveValue(&liqEl, "gridSize", m_d->gridSize);
590}
void saveValue(QDomElement *parent, const QString &tag, const QSize &size)

References m_d, and KisDomUtils::saveValue().

◆ transformedPoints()

QVector< QPointF > & KisLiquifyTransformWorker::transformedPoints ( )

◆ transformSrcAndDst()

void KisLiquifyTransformWorker::transformSrcAndDst ( const QTransform & t)

Definition at line 468 of file kis_liquify_transform_worker.cpp.

469{
470 KIS_SAFE_ASSERT_RECOVER_RETURN(t.type() <= QTransform::TxScale);
471
472 m_d->srcBounds = t.mapRect(m_d->srcBounds);
473
474 // TODO: do it within Spatial Container
475 for (int i = 0; i < m_d->transformedPoints.count(); i++) {
476 m_d->originalPointsContainer.movePoint(i, m_d->originalPoints[i], t.map(m_d->originalPoints[i]));
477 m_d->transformedPointsContainer.movePoint(i, m_d->transformedPoints[i], t.map(m_d->transformedPoints[i]));
478
479 m_d->originalPoints[i] = t.map(m_d->originalPoints[i]);
480 m_d->transformedPoints[i] = t.map(m_d->transformedPoints[i]);
481 }
482 m_d->accumulatedBrushStrokes = t.map(m_d->accumulatedBrushStrokes).boundingRect();
483 if (t == QTransform::fromScale(t.m11(), t.m22()) && t.m11() == t.m22()) {
484 m_d->pixelPrecision *= t.m11();
485 KIS_SAFE_ASSERT_RECOVER(m_d->pixelPrecision > 0) { m_d->pixelPrecision = 1; }
486 KIS_SAFE_ASSERT_RECOVER(QList<int>({1, 2, 4, 8, 16}).contains(m_d->pixelPrecision) || m_d->pixelPrecision%16 == 0) { m_d->pixelPrecision = 1; }
487 // should check if pixelPrecision is a power of 2, but that's more complicated
488 }
489}
#define KIS_SAFE_ASSERT_RECOVER(cond)
Definition kis_assert.h:126

References KIS_SAFE_ASSERT_RECOVER, KIS_SAFE_ASSERT_RECOVER_RETURN, and m_d.

◆ translate()

void KisLiquifyTransformWorker::translate ( const QPointF & offset)

Definition at line 176 of file kis_liquify_transform_worker.cpp.

177{
178 KIS_ASSERT_RECOVER_RETURN(m_d->originalPoints.size() ==
179 m_d->transformedPoints.size());
180
181 // TODO: make it within Spatial Container, either a hidden offset, or just offsetting all points at once
182 // and benchmark
183 for (int i = 0; i < m_d->transformedPoints.count(); i++) {
184 m_d->originalPointsContainer.movePoint(i, m_d->originalPoints[i], m_d->originalPoints[i] + offset);
185 m_d->transformedPointsContainer.movePoint(i, m_d->transformedPoints[i], m_d->transformedPoints[i] + offset);
186
187 m_d->originalPoints[i] += offset;
188 m_d->transformedPoints[i] += offset;
189 }
190
191 m_d->accumulatedBrushStrokes.translate(offset);
192}

References KIS_ASSERT_RECOVER_RETURN, and m_d.

◆ translateDstSpace()

void KisLiquifyTransformWorker::translateDstSpace ( const QPointF & offset)

Definition at line 194 of file kis_liquify_transform_worker.cpp.

195{
196 // TODO: make it within Spatial Container, either a hidden offset, or just offsetting all points at once
197 // and benchmark
198 for (int i = 0; i < m_d->transformedPoints.count(); i++) {
199 m_d->transformedPointsContainer.movePoint(i, m_d->transformedPoints[i], m_d->transformedPoints[i] + offset);
200 m_d->transformedPoints[i] += offset;
201 }
202}

References m_d.

◆ translatePoints()

void KisLiquifyTransformWorker::translatePoints ( const QPointF & base,
const QPointF & offset,
qreal sigma,
bool useWashMode,
qreal flow )

Definition at line 384 of file kis_liquify_transform_worker.cpp.

389{
390 TranslateOp op(offset);
391 m_d->processTransformedPixels(op, base, sigma, useWashMode, flow);
392}

References m_d.

◆ undoPoints()

void KisLiquifyTransformWorker::undoPoints ( const QPointF & base,
qreal amount,
qreal sigma )

Definition at line 204 of file kis_liquify_transform_worker.cpp.

207{
208 const qreal maxDistCoeff = 3.0;
209 const qreal maxDist = maxDistCoeff * sigma;
210
211 KIS_ASSERT_RECOVER_RETURN(m_d->originalPoints.size() ==
212 m_d->transformedPoints.size());
213
214 QVector<int> indexes;
215 m_d->transformedPointsContainer.findAllInRange(indexes, base, maxDist);
216 for (int i = 0; i < indexes.count(); i++) {
217
218 QPointF diff = m_d->transformedPoints[indexes[i]] - base;
219 qreal dist = KisAlgebra2D::norm(diff);
220 qreal lambda = exp(-0.5 * pow2(dist / sigma));
221 lambda *= amount;
222
223 QPointF oldPosition = m_d->transformedPoints[indexes[i]];
224 m_d->transformedPoints[indexes[i]] = m_d->originalPoints[indexes[i]] * lambda + m_d->transformedPoints[indexes[i]] * (1.0 - lambda);
225
226 m_d->transformedPointsContainer.movePoint(indexes[i], oldPosition, m_d->transformedPoints[indexes[i]]);
227 }
228}
T pow2(const T &x)
Definition kis_global.h:166
qreal norm(const T &a)

References KIS_ASSERT_RECOVER_RETURN, m_d, KisAlgebra2D::norm(), and pow2().

Member Data Documentation

◆ accumulatedBrushStrokes

QRectF KisLiquifyTransformWorker::accumulatedBrushStrokes

Definition at line 37 of file kis_liquify_transform_worker.cpp.

◆ gridSize

QSize KisLiquifyTransformWorker::gridSize

Definition at line 41 of file kis_liquify_transform_worker.cpp.

◆ m_d

const QScopedPointer<Private> KisLiquifyTransformWorker::m_d
private

Definition at line 86 of file kis_liquify_transform_worker.h.

◆ originalPoints

const QVector< QPointF > & KisLiquifyTransformWorker::originalPoints

Definition at line 31 of file kis_liquify_transform_worker.cpp.

◆ originalPointsContainer

KisSpatialContainer KisLiquifyTransformWorker::originalPointsContainer

Definition at line 34 of file kis_liquify_transform_worker.cpp.

◆ pixelPrecision

int KisLiquifyTransformWorker::pixelPrecision

Definition at line 40 of file kis_liquify_transform_worker.cpp.

◆ progress

KoUpdater* KisLiquifyTransformWorker::progress

Definition at line 39 of file kis_liquify_transform_worker.cpp.

◆ srcBounds

QRect KisLiquifyTransformWorker::srcBounds

Definition at line 29 of file kis_liquify_transform_worker.cpp.

◆ transformedPoints

QVector< QPointF > & KisLiquifyTransformWorker::transformedPoints

Definition at line 32 of file kis_liquify_transform_worker.cpp.

◆ transformedPointsContainer

KisSpatialContainer KisLiquifyTransformWorker::transformedPointsContainer

Definition at line 35 of file kis_liquify_transform_worker.cpp.


The documentation for this class was generated from the following files: