GridIterationTools::IncompletePolygonPolicy< PolygonOp, IndexesOp > Struct Template Reference

#include <kis_grid_interpolation_tools.h>

Static Public Member Functions
static bool	tryProcessPolygon (int col, int row, int numExistingPoints, PolygonOp &polygonOp, IndexesOp &indexesOp, const QVector< int > &polygonPoints, const QVector< QPointF > &originalPoints, const QVector< QPointF > &transformedPoints)

Detailed Description

template<class PolygonOp, class IndexesOp>
struct GridIterationTools::IncompletePolygonPolicy< PolygonOp, IndexesOp >

Definition at line 455 of file kis_grid_interpolation_tools.h.

Member Function Documentation

tryProcessPolygon()

template<class PolygonOp , class IndexesOp >

static bool GridIterationTools::IncompletePolygonPolicy< PolygonOp, IndexesOp >::tryProcessPolygon ( int col, int row, int numExistingPoints, PolygonOp & polygonOp, IndexesOp & indexesOp, const QVector< int > & polygonPoints, const QVector< QPointF > & originalPoints, const QVector< QPointF > & transformedPoints )

inlinestatic

Definition at line 457 of file kis_grid_interpolation_tools.h.

    {
        if (numExistingPoints >= 4) return false;
        if (numExistingPoints == 0) return true;
 
        QPolygonF srcPolygon;
        QPolygonF dstPolygon;
 
        for (int i = 0; i < 4; i++) {
            const int index = polygonPoints[i];
 
            if (index >= 0) {
                srcPolygon << originalPoints[index];
                dstPolygon << transformedPoints[index];
            } else {
                QPoint cellPt = Private::pointPolygonIndexToColRow(QPoint(col, row), i);
                QPointF srcPoint;
                QPointF dstPoint;
                bool result =
                    getOrthogonalPointApproximation(cellPt,
                                                    originalPoints,
                                                    transformedPoints,
                                                    indexesOp,
                                                    &srcPoint,
                                                    &dstPoint);
 
                if (!result) {
                    //dbgKrita << "*NOT* found any valid point" << allSrcPoints[pointToIndex(cellPt)] << "->" << ppVar(pt);
                    break;
                } else {
                    srcPolygon << srcPoint;
                    dstPolygon << dstPoint;
                }
            }
        }
 
        if (dstPolygon.size() == 4) {
            QPolygonF srcClipPolygon(srcPolygon.intersected(indexesOp.srcCropPolygon()));
 
            KisFourPointInterpolatorForward forwardTransform(srcPolygon, dstPolygon);
            for (int i = 0; i < srcClipPolygon.size(); i++) {
                const QPointF newPt = forwardTransform.map(srcClipPolygon[i]);
                srcClipPolygon[i] = newPt;
            }
 
            polygonOp(srcPolygon, dstPolygon, srcClipPolygon);
        }
 
        return true;
    }

References dstPoint, GridIterationTools::getOrthogonalPointApproximation(), KisFourPointInterpolatorForward::map(), and GridIterationTools::Private::pointPolygonIndexToColRow().

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The documentation for this struct was generated from the following file:

• libs/image/kis_grid_interpolation_tools.h