_site/cover/pgmp_geo.COVER.html

1 %% Copyright (c) 2022 Peter Morgan <peter.james.morgan@gmail.com>
2 %%
3 %% Licensed under the Apache License, Version 2.0 (the "License");
4 %% you may not use this file except in compliance with the License.
5 %% You may obtain a copy of the License at
6 %%
7 %% http://www.apache.org/licenses/LICENSE-2.0
8 %%
9 %% Unless required by applicable law or agreed to in writing, software
10 %% distributed under the License is distributed on an "AS IS" BASIS,
11 %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 %% See the License for the specific language governing permissions and
13 %% limitations under the License.
14
15
16 -module(pgmp_geo).
17
18
19 -export_type([box/0]).
20 -export_type([circle/0]).
21 -export_type([line/0]).
22 -export_type([lseg/0]).
23 -export_type([path/0]).
24 -export_type([point/0]).
25 -export_type([polygon/0]).
26
27
28 -type point() :: #{x := float(), y := float()}.
29
30 -type path() :: #{path := closed | open, points := [point()]}.
31
32 -type polygon() :: [point()].
33
34 -type circle() :: #{x := float(), y := float(), radius := float()}.
35
36 -type line() :: #{a := float(), b := float(), c := float()}.
37
38 -type lseg() :: {point(), point()}.
39
40 -type box() :: {point(), point()}.
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