1Geo::ShapeFile::Point(3U)ser Contributed Perl DocumentatiGoeno::ShapeFile::Point(3)
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6 Geo::ShapeFile::Point - Geo::ShapeFile utility class.
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9 use Geo::ShapeFile::Point;
10 use Geo::ShapeFile;
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12 my $point = Geo::ShapeFile::Point->new(X => 12345, Y => 54321);
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15 This is a utility class, used by Geo::ShapeFile.
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18 This is a utility class, used by Geo::ShapeFile to represent point
19 data, you should see the Geo::ShapeFile documentation for more
20 information.
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22 EXPORT
23 Nothing.
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25 IMPORT NOTE
26 This module uses overloaded operators to allow you to use == or eq to
27 compare two point objects. By default points are considered to be
28 equal only if their X, Y, Z, and M attributes are equal. If you want
29 to exclude the Z or M attributes when comparing, you should use
30 comp_includes_z or comp_includes_m when importing the object. Note
31 that you must do this before you load the Geo::ShapeFile module, or it
32 will pass it's own arguments to import, and you will get the default
33 behavior:
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35 DO:
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37 use Geo::ShapeFile::Point comp_includes_m => 0, comp_includes_z => 0;
38 use Geo::ShapeFile;
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40 DONT:
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42 use Geo::ShapeFile;
43 use Geo::ShapeFile::Point comp_includes_m => 0, comp_includes_z => 0;
44 (Geo::ShapeFile already imported Point for you, so it has no effect here)
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47 new (X => $x, Y => $y)
48 Creates a new Geo::ShapeFile::Point object, takes a hash consisting
49 of X, Y, Z, and/or M values to be assigned to the point.
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51 X() Y() Z() M()
52 Set/retrieve the X, Y, Z, or M values for this object.
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54 get_x() get_y() get_z() get_m()
55 Get the X, Y, Z, or M values for this object. Slightly faster than
56 the dual purpose set/retrieve methods so good for heavy usage parts
57 of your code.
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59 x_min() x_max() y_min() y_max()
60 z_min() z_max() m_min() m_max()
61 These methods are provided for compatibility with
62 Geo::ShapeFile::Shape, but for points simply return the X, Y, Z, or
63 M coordinates as appropriate.
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65 distance_from($point)
66 Returns the distance between this point and the specified point.
67 Only considers the two-dimensional distance. Z and M values are
68 ignored.
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70 angle_to($point);
71 Returns the bearing (in degrees from north) from this point to some
72 other point. Returns 0 if the two points are in the same location.
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75 Please send any bugs, suggestions, or feature requests to
76 <https://github.com/shawnlaffan/Geo-ShapeFile/issues>.
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79 Geo::ShapeFile
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82 Jason Kohles, <email@jasonkohles.com>
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84 Shawn Laffan, <shawnlaffan@gmail.com>
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87 Copyright 2002-2013 by Jason Kohles
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89 Copyright 2014 by Shawn Laffan
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91 This library is free software; you can redistribute it and/or modify it
92 under the same terms as Perl itself.
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96perl v5.28.0 2018-07-14 Geo::ShapeFile::Point(3)