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//
// Lynkeos
// $Id:$
//
// Created by Jean-Etienne LAMIAUD on Thu Oct 30 2014.
// Copyright (c) 2014-2020. Jean-Etienne LAMIAUD
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
/*!
* @header
* @abstract Class for the drizzling interpolator, used in Lynkeos < v3.
*/
#ifndef __LYNKEOSDRIZZLEINTERPOLATOR_H
#define __LYNKEOSDRIZZLEINTERPOLATOR_H
#import <Foundation/Foundation.h>
#include "processing_core.h"
#include "LynkeosCore/LynkeosInterpolator.h"
/*!
* @abstract Pixels weight.
*/
typedef struct
{
REAL left; //!< Weight of left pixel half
REAL top; //!< Weight of upper pixel half
} Pixels_Weight_t;
/*!
* @abstract Vectors of pixels weight.
*/
typedef struct
{
REALVECT left; //!< Weight of left pixel half
REALVECT right; //!< Weight of right pixel half
REALVECT top; //!< Weight of upper pixel half
REALVECT bottom; //!< Weight of lower pixel half
} Pixels_Weight_Vector_t;
@interface LynkeosDrizzleInterpolator : NSObject <LynkeosInterpolator>
{
@private
u_short _expand; //!< Scaling factor
LynkeosIntegerPoint _integerOffset[3]; //!< Integer part of the offsets
Pixels_Weight_t _weight[3]; //!< Weight of pixel parts
Pixels_Weight_Vector_t _vectorWeight[3]; //!< Weights for vectors
u_short _nPlanes; //!< Number of planes
//! Origin of the rectangle to interpolate, inside the sample
LynkeosIntegerPoint _origin;
LynkeosImageBuffer *_sample; //!< Image sample to interpolate
}
@end
#endif
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