Rev 674 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 674 | Rev 801 | ||
---|---|---|---|
Line 22... | Line 22... | ||
22 | * Program URL : http://qmapcontrol.sourceforge.net/ |
22 | * Program URL : http://qmapcontrol.sourceforge.net/ |
23 | * |
23 | * |
24 | */ |
24 | */ |
Line 25... | Line 25... | ||
25 | 25 | ||
26 | #include "googlesatmapadapter.h" |
- | |
27 | - | ||
28 | #include <math.h> |
26 | #include "googlesatmapadapter.h" |
29 | namespace qmapcontrol |
27 | namespace qmapcontrol |
30 | { |
28 | { |
31 | GoogleSatMapAdapter::GoogleSatMapAdapter() |
29 | GoogleSatMapAdapter::GoogleSatMapAdapter() |
32 | : TileMapAdapter("kh.google.com", "/kh?n=404&v=8&t=trtqtt", 256, 0, 19) |
30 | : TileMapAdapter("khm1.google.com", "/kh/v=57&hl=de&x=%2&y=%3&z=%1&s=", 256, 0, 20) |
33 | { |
- | |
34 | // name = "googlesat"; |
- | |
35 | - | ||
36 | numberOfTiles = pow(2, current_zoom+0.0); |
- | |
37 | coord_per_x_tile = 360. / numberOfTiles; |
- | |
38 | coord_per_y_tile = 180. / numberOfTiles; |
31 | { |
Line 39... | Line 32... | ||
39 | } |
32 | } |
40 | 33 | ||
41 | GoogleSatMapAdapter::~GoogleSatMapAdapter() |
34 | GoogleSatMapAdapter::~GoogleSatMapAdapter() |
42 | { |
- | |
43 | } |
- | |
44 | - | ||
45 | QString GoogleSatMapAdapter::getHost() const |
- | |
46 | { |
- | |
47 | int random = qrand() % 4; |
- | |
48 | return QString("kh%1.google.com").arg(random); |
- | |
49 | } |
- | |
50 | - | ||
51 | QPoint GoogleSatMapAdapter::coordinateToDisplay(const QPointF& coordinate) const |
- | |
52 | { |
- | |
53 | //double x = ((coordinate.x()+180)*(tilesize*numberOfTiles/360)); |
- | |
54 | //double y = (((coordinate.y()*-1)+90)*(tilesize*numberOfTiles/180)); |
- | |
55 | - | ||
56 | qreal x = (coordinate.x()+180.) * (numberOfTiles*mytilesize)/360.; // coord to pixel! |
- | |
57 | //double y = -1*(coordinate.y()-90) * (numberOfTiles*tilesize)/180.; // coord to pixel! |
- | |
58 | qreal y = (getMercatorYCoord(coordinate.y())-M_PI) * -1 * (numberOfTiles*mytilesize)/(2*M_PI); // coord to pixel! |
- | |
59 | return QPoint(int(x), int(y)); |
- | |
60 | } |
- | |
61 | - | ||
62 | QPointF GoogleSatMapAdapter::displayToCoordinate(const QPoint& point) const |
- | |
63 | { |
- | |
64 | //double lon = ((point.x()/tilesize*numberOfTiles)*360)-180; |
- | |
65 | //double lat = (((point.y()/tilesize*numberOfTiles)*180)-90)*-1; |
- | |
66 | - | ||
67 | qreal lon = (point.x()*(360./(numberOfTiles*mytilesize)))-180.; |
- | |
68 | //double lat = -(point.y()*(180./(numberOfTiles*tilesize)))+90; |
- | |
69 | //qreal lat = getMercatorLatitude(point.y()*-1*(2*M_PI/(numberOfTiles*tilesize)) + M_PI); |
- | |
70 | qreal lat = lat *180./M_PI; |
- | |
71 | return QPointF(lon, lat); |
- | |
72 | } |
- | |
73 | - | ||
74 | qreal GoogleSatMapAdapter::getMercatorLatitude(qreal YCoord) const |
- | |
75 | { |
- | |
76 | //http://welcome.warnercnr.colostate.edu/class_info/nr502/lg4/projection_mathematics/converting.html |
- | |
77 | if (YCoord > M_PI) return 9999.; |
- | |
78 | if (YCoord < -M_PI) return -9999.; |
- | |
79 | - | ||
80 | qreal t = atan(exp(YCoord)); |
- | |
81 | qreal res = (2.*(t))-(M_PI/2.); |
- | |
82 | return res; |
- | |
83 | } |
- | |
84 | - | ||
85 | qreal GoogleSatMapAdapter::getMercatorYCoord(qreal lati) const |
- | |
86 | { |
- | |
87 | qreal lat = lati; |
- | |
88 | - | ||
89 | // conversion degre=>radians |
- | |
90 | qreal phi = M_PI * lat / 180; |
- | |
91 | - | ||
92 | qreal res; |
- | |
93 | //double temp = Math.Tan(Math.PI / 4 - phi / 2); |
- | |
94 | //res = Math.Log(temp); |
- | |
95 | res = 0.5 * log((1 + sin(phi)) / (1 - sin(phi))); |
- | |
96 | - | ||
97 | return res; |
- | |
98 | } |
- | |
99 | - | ||
100 | void GoogleSatMapAdapter::zoom_in() |
- | |
101 | { |
- | |
102 | current_zoom+=1; |
- | |
103 | numberOfTiles = pow(2, current_zoom+0.0); |
- | |
104 | coord_per_x_tile = 360. / numberOfTiles; |
- | |
105 | coord_per_y_tile = 180. / numberOfTiles; |
- | |
106 | } |
- | |
107 | - | ||
108 | void GoogleSatMapAdapter::zoom_out() |
- | |
109 | { |
- | |
110 | current_zoom-=1; |
- | |
111 | numberOfTiles = pow(2, current_zoom+0.0); |
- | |
112 | coord_per_x_tile = 360. / numberOfTiles; |
- | |
113 | coord_per_y_tile = 180. / numberOfTiles; |
- | |
114 | } |
- | |
115 | - | ||
116 | bool GoogleSatMapAdapter::isValid(int x, int y, int z) const |
- | |
117 | { |
- | |
118 | if ((x>=0 && x < numberOfTiles) && (y>=0 && y < numberOfTiles) && z>=0) |
- | |
119 | { |
- | |
120 | return true; |
- | |
121 | } |
- | |
122 | return false; |
- | |
123 | } |
- | |
124 | QString GoogleSatMapAdapter::query(int i, int j, int z) const |
- | |
125 | { |
- | |
126 | return getQ(-180+i*coord_per_x_tile, |
- | |
127 | 90-(j+1)*coord_per_y_tile, z); |
- | |
128 | } |
- | |
129 | - | ||
130 | QString GoogleSatMapAdapter::getQ(qreal longitude, qreal latitude, int zoom) const |
- | |
131 | { |
- | |
132 | qreal xmin=-180; |
- | |
133 | qreal xmax=180; |
- | |
134 | qreal ymin=-90; |
- | |
135 | qreal ymax=90; |
- | |
136 | - | ||
137 | qreal xmoy=0; |
- | |
138 | qreal ymoy=0; |
- | |
139 | QString location="t"; |
- | |
140 | - | ||
141 | //Google uses a latitude divided by 2; |
- | |
142 | qreal halflat = latitude; |
- | |
143 | - | ||
144 | for (int i = 0; i < zoom; i++) |
- | |
145 | { |
- | |
146 | xmoy = (xmax + xmin) / 2; |
- | |
147 | ymoy = (ymax + ymin) / 2; |
- | |
148 | if (halflat >= ymoy) //upper part (q or r) |
- | |
149 | { |
- | |
150 | ymin = ymoy; |
- | |
151 | if (longitude < xmoy) |
- | |
152 | { /*q*/ |
- | |
153 | location+= "q"; |
- | |
154 | xmax = xmoy; |
- | |
155 | } |
- | |
156 | else |
- | |
157 | {/*r*/ |
- | |
158 | location+= "r"; |
- | |
159 | xmin = xmoy; |
- | |
160 | } |
- | |
161 | } |
- | |
162 | else //lower part (t or s) |
- | |
163 | { |
- | |
164 | ymax = ymoy; |
- | |
165 | if (longitude < xmoy) |
- | |
166 | { /*t*/ |
- | |
167 | - | ||
168 | location+= "t"; |
- | |
169 | xmax = xmoy; |
- | |
170 | } |
- | |
171 | else |
- | |
172 | {/*s*/ |
- | |
173 | location+= "s"; |
- | |
174 | xmin = xmoy; |
- | |
175 | } |
- | |
176 | } |
- | |
177 | } |
- | |
178 | return QString("/kh?n=404&v=24&t=%1").arg(location); |
35 | { |
179 | } |
- |