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ResInsight/ThirdParty/Ert/lib/geometry/geo_pointset.cpp

227 lines
6.7 KiB
C++

/*
Copyright (C) 2011 Statoil ASA, Norway.
The file 'geo_pointset.c' is part of ERT - Ensemble based Reservoir Tool.
ERT 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 3 of the License, or
(at your option) any later version.
ERT 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 at <http://www.gnu.org/licenses/gpl.html>
for more details.
*/
#include <math.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <ert/util/util.hpp>
#include <ert/geometry/geo_pointset.hpp>
#define INIT_SIZE 256
struct geo_pointset_struct {
int size;
int alloc_size;
bool internal_z;
double * xcoord;
double * ycoord;
double * zcoord; // Can be NULL
};
static void geo_pointset_resize( geo_pointset_type * pointset, int new_alloc_size) {
pointset->xcoord = (double*)util_realloc( pointset->xcoord , new_alloc_size * sizeof * pointset->xcoord );
pointset->ycoord = (double*)util_realloc( pointset->ycoord , new_alloc_size * sizeof * pointset->ycoord );
if (pointset->internal_z)
pointset->zcoord = (double*)util_realloc( pointset->zcoord , new_alloc_size * sizeof * pointset->zcoord);
pointset->alloc_size = new_alloc_size;
}
geo_pointset_type * geo_pointset_alloc( bool internal_z) {
geo_pointset_type * pointset = (geo_pointset_type*)util_malloc( sizeof * pointset );
pointset->xcoord = NULL;
pointset->ycoord = NULL;
pointset->zcoord = NULL;
pointset->internal_z = internal_z;
pointset->size = 0;
geo_pointset_resize( pointset , INIT_SIZE );
return pointset;
}
void geo_pointset_memcpy( const geo_pointset_type * src, geo_pointset_type * target , bool copy_zdata) {
if (src->internal_z != target->internal_z)
util_abort("%s: when copying geo_poitset they must have equal value for internal_z\n", __func__);
geo_pointset_resize( target , src->size );
target->size = src->size;
memcpy( target->xcoord , src->xcoord , src->size * sizeof * src->xcoord);
memcpy( target->ycoord , src->ycoord , src->size * sizeof * src->ycoord);
if (copy_zdata) {
if (src->internal_z)
memcpy( target->zcoord , src->zcoord , src->size * sizeof * src->zcoord);
else
util_abort("%s: can not pass copy_zdata = true for pointset with shared z\n",__func__);
} else if (target->internal_z) {
int i;
for (i=0; i < target->size; i++)
target->zcoord[i] = 0;
}
}
void geo_pointset_add_xyz( geo_pointset_type * pointset , double x , double y, double z) {
if (pointset->size == pointset->alloc_size)
geo_pointset_resize( pointset , 1 + pointset->alloc_size * 2);
pointset->xcoord[ pointset->size ] = x;
pointset->ycoord[ pointset->size ] = y;
if (pointset->internal_z)
pointset->zcoord[ pointset->size ] = z;
pointset->size++;
}
void geo_pointset_free( geo_pointset_type * pointset ) {
free( pointset->xcoord );
free( pointset->ycoord );
util_safe_free( pointset->zcoord );
free( pointset );
}
int geo_pointset_get_size( const geo_pointset_type * pointset ) {
return pointset->size;
}
const double * geo_pointset_get_zcoord( const geo_pointset_type * pointset ) {
return pointset->zcoord;
}
static void geo_pointset_assert_index( const geo_pointset_type * pointset , int index) {
if ((index < 0) || (index >= pointset->size))
util_abort("%s: invalid pointset index. Size:%d \n",__func__ , index );
}
static void geo_pointset_assert_zindex( const geo_pointset_type * pointset , int index) {
if ((index < 0) || (index >= pointset->size))
util_abort("%s: invalid pointset index. Size:%d \n",__func__ , index );
if (pointset->zcoord == NULL)
util_abort("%s: z coordinate not set\n",__func__);
}
void geo_pointset_iget_xy( const geo_pointset_type * pointset , int index , double * x , double * y) {
geo_pointset_assert_index( pointset , index );
*x = pointset->xcoord[ index ];
*y = pointset->ycoord[ index ];
}
double geo_pointset_iget_z( const geo_pointset_type * pointset , int index ) {
geo_pointset_assert_zindex( pointset , index );
return pointset->zcoord[ index ];
}
void geo_pointset_iset_z( geo_pointset_type * pointset , int index , double value) {
geo_pointset_assert_zindex( pointset , index );
pointset->zcoord[ index ] = value;
}
bool geo_pointset_equal( const geo_pointset_type * pointset1 , const geo_pointset_type * pointset2) {
bool equal = false;
if (pointset1->size == pointset2->size) {
size_t byte_size = pointset2->size * sizeof * pointset2->xcoord;
if ((memcmp(pointset1->xcoord, pointset2->xcoord , byte_size) == 0) &&
(memcmp(pointset1->ycoord, pointset2->ycoord , byte_size) == 0)) {
if (pointset1->internal_z == pointset2->internal_z) {
if (pointset1->zcoord) {
if (memcmp(pointset1->zcoord, pointset2->zcoord , byte_size) == 0)
equal = true;
} else
equal = true;
}
}
}
return equal;
}
void geo_pointset_assign_z( geo_pointset_type * pointset , double value ) {
int index;
for (index = 0; index < pointset->size; index++)
pointset->zcoord[index] = value;
}
void geo_pointset_shift_z( geo_pointset_type * pointset , double value ) {
int index;
for (index = 0; index < pointset->size; index++)
pointset->zcoord[index] += value;
}
void geo_pointset_scale_z( geo_pointset_type * pointset , double value ) {
int index;
for (index = 0; index < pointset->size; index++)
pointset->zcoord[index] *= value;
}
void geo_pointset_iadd( geo_pointset_type * self , const geo_pointset_type * other ) {
int index;
if (self->size == other->size) {
for (index = 0; index < self->size; index++)
self->zcoord[index] += other->zcoord[index];
} else
util_abort("%s: size mismatch \n",__func__);
}
void geo_pointset_isub( geo_pointset_type * self , const geo_pointset_type * other ) {
int index;
if (self->size == other->size) {
for (index = 0; index < self->size; index++)
self->zcoord[index] -= other->zcoord[index];
} else
util_abort("%s: size mismatch \n",__func__);
}
void geo_pointset_imul( geo_pointset_type * self , const geo_pointset_type * other ) {
int index;
if (self->size == other->size) {
for (index = 0; index < self->size; index++)
self->zcoord[index] *= other->zcoord[index];
} else
util_abort("%s: size mismatch \n",__func__);
}
void geo_pointset_isqrt( geo_pointset_type * pointset ) {
int index;
for (index = 0; index < pointset->size; index++)
pointset->zcoord[index] = sqrt(pointset->zcoord[index]);
}