MapyCz - multiple locations in URL

DJTommek commented 4 years ago

MapyCZ link can have (at least) three locations in one url:

position of the map (params x=??, y=??)
panorama position (param pid=??)
selected place ID (param pid=?? which might be numeric ID or directly coordinates in format x,y) All locations should be returned if they are not the same place (+- few meters).

Examples:

Numeric place ID

https://en.mapy.cz/turisticka?x=16.2845693&y=50.1233926&z=17&pano=1&source=base&id=2107710&pid=66437731&yaw=6.051&fov=1.257&pitch=0.157

coordinates of the map: 50.123393,16.284569
coordinates of place ID: 50.132131,16.313767
coordinates of the panorama: @TODO

Coordinates in place ID

https://en.mapy.cz/turisticka?x=16.2901106&y=50.1243329&z=17&pano=1&source=coor&id=16.290770614266734%2C50.126474095383905&pid=66433150&yaw=3.770&fov=1.257&pitch=0.306

coordinates of the map: 50.124333,16.290111
coordinates of place ID: 50.126474,16.290771
coordinates of the panorama: @TODO

DJTommek commented 4 years ago

Translating panorama ID to coordinates might be possible via https://pro.mapy.cz/panorpc but it's returning list of neighbors (but not coordinates of current position itself).

Solutions:

pick random neighbor and return it's coordinates
pick random neighbor, get it's ID, make another request to panorpc with this ID and pick neighbor with original panorama ID (thanks @draliii).
if there is more than one neighbor calculate center between these points which is one request less than previous solution (thanks @draliii

DJTommek commented 4 years ago

Added support for panorama in e64c0b818f53d8444096ce61c64c223855a93ced.

If panorama is opened and changed, map always will autocenter to currently opened panorama location, so X and Y parameters in URL are the same, as panorama location. But it is possible to move with map away and in that case X an Y is in different location than panorama. Because of that I don't want to rely on that X and Y coordinates so in that commit it is solved via solution 2 described in comment earlier.

DJTommek commented 4 years ago

Done in 091d1ebf706a99fa0910a9baa71d4c47aa594f5c.

DJTommek / better-location