geo-nd 0.6.4

Traits and types particularly for 2D and 3D geometry with implementations for [float] and optionally SIMD
Documentation 
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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294

macro_rules! f_const {
    ($f:ty, $e:expr) => {
        <$f>::from_i32($e).unwrap()
    };
    ($f:ty, $n:expr, $d:expr) => {
        <$f>::frac($n, $d)
    };
}

//a Macros that operate on 'Self.data'
//mi ref_traits - Deref/Mut, AsRef/AsMut, Index<usize>
macro_rules! ref_traits {
    { $f:ty,  $e:expr, $ty:ty } => {

        impl std::ops::Deref for $ty {
            type Target = [$f; $e];
            fn deref(&self) -> &[$f; $e] {
                &self.data
            }
        }
        impl std::ops::DerefMut for $ty {
            fn deref_mut(&mut self) -> &mut [$f; $e] {
                &mut self.data
            }
        }

        impl std::convert::AsRef<[$f; $e]> for $ty
        {
            fn as_ref(&self) -> &[$f; $e] {
                &self.data
            }
        }
        impl std::convert::AsMut<[$f; $e]> for $ty
        {
            fn as_mut(&mut self) -> &mut [$f; $e] {
                &mut self.data
            }
        }

        impl std::ops::Index<usize> for $ty {
            type Output = $f;
            fn index(&self, index: usize) -> &$f {
                &self.data[index]
            }
        }
        impl std::ops::IndexMut<usize> for $ty {
            fn index_mut(&mut self, index: usize) -> &mut $f {
                &mut self.data[index]
            }
        }
    }
}

//mi convert_traits - From<> traits
macro_rules! convert_traits {
    { $f:ty,  $e:expr, $ty:ty } => {

        impl std::convert::From<[$f; $e]> for $ty {
            fn from(data:[$f; $e]) -> $ty {
                Self { data }
            }
        }
        impl <'a> std::convert::From<&'a [$f; $e]> for $ty {
            fn from(data:&'a [$f; $e]) -> $ty {
                Self { data:*data }
            }
        }

        impl <'a> std::convert::TryFrom<&'a [$f]> for $ty {
            type Error = std::array::TryFromSliceError;
            fn try_from(data:&'a [$f]) -> Result<$ty, Self::Error> {
                let data :[$f; $e] = <[$f; $e]>::try_from(data)?;
                Ok(data.into())
            }
        }

        impl <'a> std::convert::TryFrom<Vec<$f>> for $ty {
            type Error = Vec<$f>;
            fn try_from(data:Vec<$f>) -> Result<$ty, Self::Error> {
                let data: [$f; $e] = <[$f; $e]>::try_from(data)?;
                Ok(data.into())
            }
        }

        impl std::convert::From<$ty> for [$f; $e]  {
            fn from(s: $ty) -> [$f; $e]  {
                s.data
            }
        }
        impl <'a> std::convert::From<&'a $ty> for &'a [$f; $e]  {
            fn from(s: &'a $ty) -> &'a [$f; $e]  {
                &s.data
            }
        }
        impl <'a> std::convert::From<&'a $ty> for [$f; $e]  {
            fn from(s: &'a $ty) -> [$f; $e]  {
                s.data
            }
        }

    }
}

//mi unary_traits - Neg
macro_rules! unary_traits {
    { $f:ty,  $e:expr, $ty:ty } => {

        //ip Neg
        impl std::ops::Neg for $ty {
            type Output = Self;
            fn neg(mut self) -> Self::Output {
                for d in self.data.iter_mut() {
                    *d = -*d;
                }
                self
            }
        }

        //ip Neg
        impl<'a> std::ops::Neg for &'a $ty {
            type Output = $ty;
            fn neg(self) -> Self::Output {
                let mut r = <$ty>::default();
                for i in 0..$e {
                    r.data[i] = -self.data[i];
                }
                r
            }
        }
    }
}

//mi elementwise_traits - element-wise op and assignop
macro_rules! elementwise_traits {
    { $f:ty, $e:expr, $ty:ty,
      $trait_op:ident, $fn_op:ident, $op:tt,
      $trait_assign_op:ident, $fn_assign_op:ident, $op_assign:tt  } => {

        // Add/Sub of  &Self  for Self
        impl <'a> std::ops::$trait_op<&'a $ty> for $ty {
            type Output = $ty;
            fn $fn_op(mut self, other: &'a $ty) -> $ty {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
                self
            }
        }

        // Add/Sub of  Deref to [F; D]  for Self (Covers Self + Self)
        impl<D: std::ops::Deref<Target = [$f; $e]>> std::ops::$trait_op<D> for $ty {
            type Output = $ty;
            fn $fn_op(mut self, other: D) -> $ty {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
                self
            }
        }

        // Add/Sub of &Self for &Self
        impl <'a> std::ops::$trait_op<&'a $ty> for &'a $ty {
            type Output = $ty;
            fn $fn_op(self, other: &'a $ty) -> $ty {
                *self $op other
            }
        }

        // Add/Sub of  Deref to [F; D]  for &Self (Covers &Self + Self)
        impl<'a, D: std::ops::Deref<Target = [$f; $e]>> std::ops::$trait_op<D> for &'a $ty {
            type Output = $ty;
            fn $fn_op(self, other: D) -> $ty {
                *self $op other
            }
        }

        impl <'a> std::ops::$trait_assign_op<&'a $ty> for $ty {
            fn $fn_assign_op(&mut self, other: &'a $ty)  {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
            }
        }

        impl<D: std::ops::Deref<Target = [$f; $e]>> std::ops::$trait_assign_op<D> for $ty {
            fn $fn_assign_op(&mut self, other: D) {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
            }
        }

        impl <'a> std::ops::$trait_assign_op<&'a $ty> for &mut $ty {
            fn $fn_assign_op(&mut self, other: &'a $ty)  {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
            }
        }

        impl<D: std::ops::Deref<Target = [$f; $e]>> std::ops::$trait_assign_op<D> for &mut $ty {
            fn $fn_assign_op(&mut self, other: D) {
                for i in 0..$e {
                    self.data[i] $op_assign other[i];
                }
            }
        }
    }
}

//mi scale_by_f_traits
macro_rules! scale_by_f_traits {
    { $f:ty, $ty:ty,
      $trait_op:ident, $fn_op:ident, $op:tt,
      $trait_assign_op:ident, $fn_assign_op:ident, $op_assign:tt  } => {

        // Mul/Div by $f for Self
        impl std::ops::$trait_op<$f> for $ty {
            type Output = $ty;
            fn $fn_op(mut self, other: $f) -> $ty {
                for i in 0..4 {
                    self.data[i] $op_assign other;
                }
                self
            }
        }

        // Mul of $f for &Self
        impl <'a> std::ops::$trait_op<$f> for &'a $ty {
            type Output = $ty;
            fn $fn_op(self, other: $f) -> $ty {
                *self $op other
            }
        }

        impl std::ops::$trait_assign_op<$f> for $ty {
            fn $fn_assign_op(&mut self, other: $f) {
                for i in 0..4 {self.data[i] $op_assign other;}
            }
        }

        // Mul/Div by  & $f  for Self
        impl <'a> std::ops::$trait_op<&'a $f> for $ty {
            type Output = $ty;
            fn $fn_op(mut self, other: &'a $f) -> $ty {
                for i in 0..4 {
                    self.data[i] $op_assign other;
                }
                self
            }
        }

        impl <'a> std::ops::$trait_assign_op<&'a $f> for $ty {
            fn $fn_assign_op(&mut self, other: &'a $f) {
                for i in 0..4 {self.data[i] $op_assign other;}
            }
        }
    }
}

//mi serialize_traits
macro_rules! serialize_traits {
    { $f:ty,  $e:expr, $ty:ty } => {

        impl Serialize for $ty {
            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
            where
                S: serde::Serializer,
            {
                self.data.serialize(serializer)
            }
        }

        impl<'de> Deserialize<'de> for $ty {
            fn deserialize<DE>(deserializer: DE) -> Result<Self, DE::Error>
            where
                DE: serde::Deserializer<'de>,
            {
                let array = <[$f; $e]>::deserialize(deserializer)?;
                Ok(array.into())
            }
        }

    }
}

//a Export them
pub(crate) use convert_traits;
pub(crate) use elementwise_traits;
pub(crate) use f_const;
pub(crate) use ref_traits;
pub(crate) use scale_by_f_traits;
pub(crate) use serialize_traits;
pub(crate) use unary_traits;