1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
#include "XdmfArray.hpp"
#include "XdmfArrayType.hpp"
#include "XdmfGeometry.hpp"
#include "XdmfGeometryType.hpp"
#include "XdmfGeometryConverter.hpp"
#include "XdmfUnstructuredGrid.hpp"
#include "XdmfWriter.hpp"
#include "stdio.h"
#include "math.h"
#include "assert.h"
double Pi = 3.1415926535897932384626433832795;
int main()
{
int status = 0;
unsigned int i = 0;
XDMFGEOMETRYCONVERTER * converter = XdmfGeometryConverterNew();
XDMFGEOMETRY * cartesianGeo = XdmfGeometryNew();
XdmfGeometrySetType(cartesianGeo, XDMF_GEOMETRY_TYPE_XYZ, &status);
for (i = 0; i < 3; ++i)
{
double pushval = 1;
XdmfGeometryPushBack(cartesianGeo, &pushval, XDMF_ARRAY_TYPE_FLOAT64, &status);
}
XDMFGEOMETRY * resultSphericalGeo = XdmfGeometryConverterConvertToSpherical(converter, cartesianGeo);
XDMFGEOMETRY * sphericalGeo = XdmfGeometryNew();
XdmfGeometrySetType(sphericalGeo, XDMF_GEOMETRY_TYPE_SPHERICAL, &status);
double value = sqrt(3);
XdmfGeometryPushBack(sphericalGeo, &value, XDMF_ARRAY_TYPE_FLOAT64, &status);
value = asin(sqrt((double)2/3));
XdmfGeometryPushBack(sphericalGeo, &value, XDMF_ARRAY_TYPE_FLOAT64, &status); // should be equal to std::acos(1/std::sqrt(3))
value = Pi/4;
XdmfGeometryPushBack(sphericalGeo, &value, XDMF_ARRAY_TYPE_FLOAT64, &status);
printf("Tolerance 10^-15\nresult\n%s\n?=\ncompare to\n%s\n", XdmfGeometryGetValuesString(resultSphericalGeo), XdmfGeometryGetValuesString(sphericalGeo));
for (i = 0; i < XdmfGeometryGetSize(sphericalGeo); ++i)
{
double val1 = ((double *)XdmfGeometryGetValue(resultSphericalGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
double val2 = ((double *)XdmfGeometryGetValue(sphericalGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
val1 = floor(val1 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
val2 = floor(val2 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
printf("%4.15f ?= %4.15f\n", val1, val2);
assert(val1 == val2);
}
XDMFGEOMETRY * resultCartesianGeo = XdmfGeometryConverterConvertToCartesian(converter, sphericalGeo);
printf("%s\n?=\n%s\n", XdmfGeometryGetValuesString(resultCartesianGeo), XdmfGeometryGetValuesString(cartesianGeo));
for (i = 0; i < XdmfGeometryGetSize(cartesianGeo); ++i)
{
double val1 = ((double *)XdmfGeometryGetValue(resultCartesianGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
double val2 = ((double *)XdmfGeometryGetValue(cartesianGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
val1 = floor(val1 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
val2 = floor(val2 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
printf("%4.15f ?= %4.15f\n", val1, val2);
assert(val1 == val2);
}
// Convert in place for geometries with a lot of references
XDMFGEOMETRY * convertedToSpherical = XdmfGeometryNew();
XdmfGeometrySetType(convertedToSpherical, XDMF_GEOMETRY_TYPE_XYZ, &status);
for (i = 0; i < 3; ++i)
{
double pushval = 1;
XdmfGeometryPushBack(convertedToSpherical, &pushval, XDMF_ARRAY_TYPE_FLOAT64, &status);
}
XdmfGeometryConverterConvertToSphericalOverwrite(converter, convertedToSpherical);
for (i = 0; i < XdmfGeometryGetSize(sphericalGeo); ++i)
{
double val1 = ((double *)XdmfGeometryGetValue(convertedToSpherical, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
double val2 = ((double *)XdmfGeometryGetValue(sphericalGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
val1 = floor(val1 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
val2 = floor(val2 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
printf("%4.15f ?= %4.15f\n", val1, val2);
assert(val1 == val2);
}
XDMFGEOMETRY * convertedToCartesian = XdmfGeometryNew();
XdmfGeometrySetType(convertedToCartesian, XDMF_GEOMETRY_TYPE_SPHERICAL, &status);
value = sqrt(3);
XdmfGeometryPushBack(convertedToCartesian, &value, XDMF_ARRAY_TYPE_FLOAT64, &status);
value = asin(sqrt((double)2/3));
XdmfGeometryPushBack(convertedToCartesian, &value, XDMF_ARRAY_TYPE_FLOAT64, &status); // should be equal to std::acos(1/std::sqrt(3))
value = Pi/4;
XdmfGeometryPushBack(convertedToCartesian, &value, XDMF_ARRAY_TYPE_FLOAT64, &status);
XdmfGeometryConverterConvertToCartesianOverwrite(converter, convertedToCartesian);
for (i = 0; i < XdmfGeometryGetSize(cartesianGeo); ++i)
{
double val1 = ((double *)XdmfGeometryGetValue(convertedToCartesian, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
double val2 = ((double *)XdmfGeometryGetValue(cartesianGeo, i, XDMF_ARRAY_TYPE_FLOAT64, &status))[0];
val1 = floor(val1 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
val2 = floor(val2 * pow((double)10, (double)15) + 0.5) / pow((double)10, (double)15);
printf("%4.15f ?= %4.15f\n", val1, val2);
assert(val1 == val2);
}
return 0;
}
|
