/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef bts_ID_CLUSTER2D_EM_H
#define bts_ID_CLUSTER2D_EM_H
/* ---- includes ----------------------------------------------------------- */
#include "b_BasicEm/Context.h"
#include "b_BasicEm/Int16Arr.h"
#include "b_TensorEm/Cluster2D.h"
/* ---- related objects --------------------------------------------------- */
/* ---- typedefs ----------------------------------------------------------- */
/* ---- constants ---------------------------------------------------------- */
/* data format version number */
#define bts_ID_CLUSTER2D_VERSION 100
/* ---- object definition -------------------------------------------------- */
/** 2d vector array with node id information */
struct bts_IdCluster2D
{
/* ---- private data --------------------------------------------------- */
/* ---- public data ---------------------------------------------------- */
/* vector array */
struct bts_Cluster2D clusterE;
/** array of id numbers */
struct bbs_Int16Arr idArrE;
};
/* ---- associated objects ------------------------------------------------- */
/* ---- external functions ------------------------------------------------- */
/* ---- \ghd{ constructor/destructor } ------------------------------------- */
/** initializes cluster */
void bts_IdCluster2D_init( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA );
/** destroys cluster */
void bts_IdCluster2D_exit( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA );
/* ---- \ghd{ operators } -------------------------------------------------- */
/** copies cluster */
void bts_IdCluster2D_copy( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
const struct bts_IdCluster2D* srcPtrA );
/** compares cluster */
flag bts_IdCluster2D_equal( struct bbs_Context* cpA,
const struct bts_IdCluster2D* ptrA,
const struct bts_IdCluster2D* srcPtrA );
/* ---- \ghd{ query functions } -------------------------------------------- */
/** returns center of gravity */
struct bts_Flt16Vec2D bts_IdCluster2D_center( struct bbs_Context* cpA,
const struct bts_IdCluster2D* ptrA );
/** returns bounding box */
struct bts_Int16Rect bts_IdCluster2D_boundingBox( struct bbs_Context* cpA,
const struct bts_IdCluster2D* ptrA );
/* ---- \ghd{ modify functions } ------------------------------------------- */
/** allocates cluster */
void bts_IdCluster2D_create( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
uint32 sizeA,
struct bbs_MemSeg* mspA );
/** resize cluster (sizeA must be smaller or equal to allocated size)*/
void bts_IdCluster2D_size( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
uint32 sizeA );
/** transforms cluster according to alt (function does not change bbp of cluster) */
void bts_IdCluster2D_transform( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
struct bts_Flt16Alt2D altA );
/** copies src cluster and simultaneously transforms vectors according to alt using dstBbpA as resulting cluster format */
void bts_IdCluster2D_copyTransform( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
const struct bts_IdCluster2D* srcPtrA,
struct bts_Flt16Alt2D altA,
uint32 dstBbpA );
/* ---- \ghd{ memory I/O } ------------------------------------------------- */
/** size object needs when written to memory */
uint32 bts_IdCluster2D_memSize( struct bbs_Context* cpA,
const struct bts_IdCluster2D* ptrA );
/** writes object to memory; returns number of bytes written */
uint32 bts_IdCluster2D_memWrite( struct bbs_Context* cpA,
const struct bts_IdCluster2D* ptrA,
uint16* memPtrA );
/** reads object from memory; returns number of bytes read */
uint32 bts_IdCluster2D_memRead( struct bbs_Context* cpA,
struct bts_IdCluster2D* ptrA,
const uint16* memPtrA,
struct bbs_MemSeg* mspA );
/* ---- \ghd{ exec functions } --------------------------------------------- */
/* This function extracts equivalent 2d sub clusters which positions
* correponts to those nodes that have a non-negative id occurring
* in both input clusters.
* Note: Nodes with negative ids are ignored
* Non-Negative ids must not occur twice in one cluster.
*/
void bts_IdCluster2D_convertToEqivalentClusters( struct bbs_Context* cpA,
const struct bts_IdCluster2D* inCluster1PtrA,
const struct bts_IdCluster2D* inCluster2PtrA,
struct bts_Cluster2D* outCluster1PtrA,
struct bts_Cluster2D* outCluster2PtrA );
/** Computes the best affine linear transformation from *srcPtrA to *dstPtrA using matching id values.
* Constrains of trafo are given by altTypeA
*
* This function selects and matches nodes with corresponsing non-negative id values of source
* an destination clusters. Nodes with negative id values are ignored. Id values >= 0 must be unique
* per node.
*/
struct bts_Flt16Alt2D bts_IdCluster2D_alt( struct bbs_Context* cpA,
const struct bts_IdCluster2D* srcPtrA,
struct bts_IdCluster2D* dstPtrA,
enum bts_AltType altTypeA,
struct bts_Cluster2D* tmpPtr1A, /* temporary cluster 1 */
struct bts_Cluster2D* tmpPtr2A ); /* temporary cluster 2 */
#endif /* bts_ID_CLUSTER2D_EM_H */