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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2287 | - | 1 | |
| 2 | namespace GMap.NET |
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| 3 | { |
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| 4 | using System; |
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| 5 | using System.Globalization; |
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| 6 | |||
| 7 | /// <summary> |
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| 8 | /// the rect of coordinates |
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| 9 | /// </summary> |
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| 10 | public struct RectLatLng |
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| 11 | { |
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| 12 | public static readonly RectLatLng Empty; |
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| 13 | private double lng; |
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| 14 | private double lat; |
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| 15 | private double widthLng; |
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| 16 | private double heightLat; |
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| 17 | |||
| 18 | public RectLatLng(double lat, double lng, double widthLng, double heightLat) |
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| 19 | { |
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| 20 | this.lng = lng; |
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| 21 | this.lat = lat; |
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| 22 | this.widthLng = widthLng; |
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| 23 | this.heightLat = heightLat; |
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| 24 | NotEmpty = true; |
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| 25 | } |
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| 26 | |||
| 27 | public RectLatLng(PointLatLng location, SizeLatLng size) |
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| 28 | { |
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| 29 | this.lng = location.Lng; |
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| 30 | this.lat = location.Lat; |
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| 31 | this.widthLng = size.WidthLng; |
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| 32 | this.heightLat = size.HeightLat; |
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| 33 | NotEmpty = true; |
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| 34 | } |
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| 35 | |||
| 36 | public static RectLatLng FromLTRB(double leftLng, double topLat, double rightLng, double bottomLat) |
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| 37 | { |
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| 38 | return new RectLatLng(topLat, leftLng, rightLng - leftLng, topLat - bottomLat); |
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| 39 | } |
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| 40 | |||
| 41 | public PointLatLng LocationTopLeft |
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| 42 | { |
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| 43 | get |
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| 44 | { |
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| 45 | return new PointLatLng(this.Lat, this.Lng); |
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| 46 | } |
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| 47 | set |
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| 48 | { |
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| 49 | this.Lng = value.Lng; |
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| 50 | this.Lat = value.Lat; |
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| 51 | } |
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| 52 | } |
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| 53 | |||
| 54 | public PointLatLng LocationRightBottom |
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| 55 | { |
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| 56 | get |
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| 57 | { |
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| 58 | PointLatLng ret = new PointLatLng(this.Lat, this.Lng); |
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| 59 | ret.Offset(HeightLat, WidthLng); |
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| 60 | return ret; |
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| 61 | } |
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| 62 | } |
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| 63 | |||
| 64 | public PointLatLng LocationMiddle |
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| 65 | { |
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| 66 | get |
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| 67 | { |
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| 68 | PointLatLng ret = new PointLatLng(this.Lat, this.Lng); |
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| 69 | ret.Offset(HeightLat / 2, WidthLng / 2); |
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| 70 | return ret; |
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| 71 | } |
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| 72 | } |
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| 73 | |||
| 74 | public SizeLatLng Size |
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| 75 | { |
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| 76 | get |
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| 77 | { |
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| 78 | return new SizeLatLng(this.HeightLat, this.WidthLng); |
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| 79 | } |
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| 80 | set |
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| 81 | { |
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| 82 | this.WidthLng = value.WidthLng; |
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| 83 | this.HeightLat = value.HeightLat; |
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| 84 | } |
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| 85 | } |
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| 86 | |||
| 87 | public double Lng |
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| 88 | { |
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| 89 | get |
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| 90 | { |
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| 91 | return this.lng; |
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| 92 | } |
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| 93 | set |
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| 94 | { |
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| 95 | this.lng = value; |
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| 96 | } |
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| 97 | } |
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| 98 | |||
| 99 | public double Lat |
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| 100 | { |
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| 101 | get |
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| 102 | { |
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| 103 | return this.lat; |
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| 104 | } |
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| 105 | set |
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| 106 | { |
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| 107 | this.lat = value; |
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| 108 | } |
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| 109 | } |
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| 110 | |||
| 111 | public double WidthLng |
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| 112 | { |
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| 113 | get |
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| 114 | { |
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| 115 | return this.widthLng; |
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| 116 | } |
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| 117 | set |
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| 118 | { |
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| 119 | this.widthLng = value; |
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| 120 | } |
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| 121 | } |
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| 122 | |||
| 123 | public double HeightLat |
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| 124 | { |
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| 125 | get |
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| 126 | { |
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| 127 | return this.heightLat; |
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| 128 | } |
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| 129 | set |
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| 130 | { |
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| 131 | this.heightLat = value; |
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| 132 | } |
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| 133 | } |
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| 134 | |||
| 135 | public double Left |
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| 136 | { |
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| 137 | get |
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| 138 | { |
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| 139 | return this.Lng; |
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| 140 | } |
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| 141 | } |
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| 142 | |||
| 143 | public double Top |
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| 144 | { |
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| 145 | get |
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| 146 | { |
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| 147 | return this.Lat; |
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| 148 | } |
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| 149 | } |
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| 150 | |||
| 151 | public double Right |
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| 152 | { |
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| 153 | get |
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| 154 | { |
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| 155 | return (this.Lng + this.WidthLng); |
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| 156 | } |
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| 157 | } |
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| 158 | |||
| 159 | public double Bottom |
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| 160 | { |
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| 161 | get |
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| 162 | { |
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| 163 | return (this.Lat - this.HeightLat); |
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| 164 | } |
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| 165 | } |
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| 166 | |||
| 167 | bool NotEmpty; |
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| 168 | |||
| 169 | /// <summary> |
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| 170 | /// returns true if coordinates wasn't assigned |
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| 171 | /// </summary> |
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| 172 | public bool IsEmpty |
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| 173 | { |
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| 174 | get |
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| 175 | { |
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| 176 | return !NotEmpty; |
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| 177 | } |
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| 178 | } |
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| 179 | |||
| 180 | public override bool Equals(object obj) |
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| 181 | { |
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| 182 | if(!(obj is RectLatLng)) |
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| 183 | { |
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| 184 | return false; |
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| 185 | } |
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| 186 | RectLatLng ef = (RectLatLng)obj; |
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| 187 | return ((((ef.Lng == this.Lng) && (ef.Lat == this.Lat)) && (ef.WidthLng == this.WidthLng)) && (ef.HeightLat == this.HeightLat)); |
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| 188 | } |
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| 189 | |||
| 190 | public static bool operator ==(RectLatLng left, RectLatLng right) |
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| 191 | { |
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| 192 | return ((((left.Lng == right.Lng) && (left.Lat == right.Lat)) && (left.WidthLng == right.WidthLng)) && (left.HeightLat == right.HeightLat)); |
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| 193 | } |
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| 194 | |||
| 195 | public static bool operator !=(RectLatLng left, RectLatLng right) |
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| 196 | { |
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| 197 | return !(left == right); |
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| 198 | } |
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| 199 | |||
| 200 | public bool Contains(double lat, double lng) |
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| 201 | { |
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| 202 | return ((((this.Lng <= lng) && (lng < (this.Lng + this.WidthLng))) && (this.Lat >= lat)) && (lat > (this.Lat - this.HeightLat))); |
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| 203 | } |
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| 204 | |||
| 205 | public bool Contains(PointLatLng pt) |
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| 206 | { |
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| 207 | return this.Contains(pt.Lat, pt.Lng); |
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| 208 | } |
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| 209 | |||
| 210 | public bool Contains(RectLatLng rect) |
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| 211 | { |
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| 212 | return ((((this.Lng <= rect.Lng) && ((rect.Lng + rect.WidthLng) <= (this.Lng + this.WidthLng))) && (this.Lat >= rect.Lat)) && ((rect.Lat - rect.HeightLat) >= (this.Lat - this.HeightLat))); |
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| 213 | } |
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| 214 | |||
| 215 | public override int GetHashCode() |
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| 216 | { |
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| 217 | if(this.IsEmpty) |
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| 218 | { |
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| 219 | return 0; |
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| 220 | } |
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| 221 | return (((this.Lng.GetHashCode() ^ this.Lat.GetHashCode()) ^ this.WidthLng.GetHashCode()) ^ this.HeightLat.GetHashCode()); |
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| 222 | } |
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| 223 | |||
| 224 | // from here down need to test each function to be sure they work good |
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| 225 | // | |
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| 226 | // . |
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| 227 | |||
| 228 | #region -- unsure -- |
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| 229 | public void Inflate(double lat, double lng) |
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| 230 | { |
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| 231 | this.Lng -= lng; |
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| 232 | this.Lat += lat; |
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| 233 | this.WidthLng += 2d * lng; |
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| 234 | this.HeightLat += 2d * lat; |
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| 235 | } |
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| 236 | |||
| 237 | public void Inflate(SizeLatLng size) |
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| 238 | { |
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| 239 | this.Inflate(size.HeightLat, size.WidthLng); |
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| 240 | } |
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| 241 | |||
| 242 | public static RectLatLng Inflate(RectLatLng rect, double lat, double lng) |
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| 243 | { |
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| 244 | RectLatLng ef = rect; |
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| 245 | ef.Inflate(lat, lng); |
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| 246 | return ef; |
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| 247 | } |
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| 248 | |||
| 249 | public void Intersect(RectLatLng rect) |
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| 250 | { |
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| 251 | RectLatLng ef = Intersect(rect, this); |
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| 252 | this.Lng = ef.Lng; |
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| 253 | this.Lat = ef.Lat; |
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| 254 | this.WidthLng = ef.WidthLng; |
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| 255 | this.HeightLat = ef.HeightLat; |
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| 256 | } |
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| 257 | |||
| 258 | // ok ??? |
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| 259 | public static RectLatLng Intersect(RectLatLng a, RectLatLng b) |
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| 260 | { |
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| 261 | double lng = Math.Max(a.Lng, b.Lng); |
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| 262 | double num2 = Math.Min((double)(a.Lng + a.WidthLng), (double)(b.Lng + b.WidthLng)); |
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| 263 | |||
| 264 | double lat = Math.Max(a.Lat, b.Lat); |
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| 265 | double num4 = Math.Min((double)(a.Lat + a.HeightLat), (double)(b.Lat + b.HeightLat)); |
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| 266 | |||
| 267 | if((num2 >= lng) && (num4 >= lat)) |
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| 268 | { |
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| 269 | return new RectLatLng(lat, lng, num2 - lng, num4 - lat); |
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| 270 | } |
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| 271 | return Empty; |
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| 272 | } |
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| 273 | |||
| 274 | // ok ??? |
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| 275 | // http://greatmaps.codeplex.com/workitem/15981 |
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| 276 | public bool IntersectsWith(RectLatLng a) |
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| 277 | { |
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| 278 | return this.Left < a.Right && this.Top > a.Bottom && this.Right > a.Left && this.Bottom < a.Top; |
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| 279 | } |
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| 280 | |||
| 281 | // ok ??? |
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| 282 | // http://greatmaps.codeplex.com/workitem/15981 |
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| 283 | public static RectLatLng Union(RectLatLng a, RectLatLng b) |
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| 284 | { |
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| 285 | return RectLatLng.FromLTRB( |
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| 286 | Math.Min(a.Left, b.Left), |
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| 287 | Math.Max(a.Top, b.Top), |
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| 288 | Math.Max(a.Right, b.Right), |
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| 289 | Math.Min(a.Bottom, b.Bottom)); |
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| 290 | } |
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| 291 | #endregion |
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| 292 | |||
| 293 | // . |
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| 294 | // | |
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| 295 | // unsure ends here |
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| 296 | |||
| 297 | public void Offset(PointLatLng pos) |
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| 298 | { |
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| 299 | this.Offset(pos.Lat, pos.Lng); |
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| 300 | } |
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| 301 | |||
| 302 | public void Offset(double lat, double lng) |
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| 303 | { |
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| 304 | this.Lng += lng; |
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| 305 | this.Lat -= lat; |
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| 306 | } |
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| 307 | |||
| 308 | public override string ToString() |
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| 309 | { |
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| 310 | return ("{Lat=" + this.Lat.ToString(CultureInfo.CurrentCulture) + ",Lng=" + this.Lng.ToString(CultureInfo.CurrentCulture) + ",WidthLng=" + this.WidthLng.ToString(CultureInfo.CurrentCulture) + ",HeightLat=" + this.HeightLat.ToString(CultureInfo.CurrentCulture) + "}"); |
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| 311 | } |
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| 312 | |||
| 313 | static RectLatLng() |
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| 314 | { |
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| 315 | Empty = new RectLatLng(); |
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| 316 | } |
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| 317 | } |
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| 318 | } |