def get_tiles_range_for_zoom(self, zoom):
# get tiles - copied from mapDownloader
dlon = mapUtils.km_to_lon(mapUtils.nice_round(self.reg_width),
self.center_lat)
dlat = mapUtils.km_to_lat(mapUtils.nice_round(self.reg_height))
if dlat > 170:
dlat = 170
if dlon > 358:
dlon = 358
top_left = mapUtils.coord_to_tile(
(self.center_lat + dlat / 2, self.center_lon - dlon / 2, zoom))
bottom_right = mapUtils.coord_to_tile(
(self.center_lat - dlat / 2, self.center_lon + dlon / 2, zoom))
# top_left[0][0], bottom_right[0][0], top_left[0][1], bottom_right[0][1]
# xmin, xmax, ymin, ymax
world_tiles = mapUtils.tiles_on_level(zoom)
if bottom_right[0][0] - top_left[0][0] >= world_tiles:
top_left[0][0], bottom_right[0][0] = 0, world_tiles - 1
if bottom_right[0][1] - top_left[0][1] >= world_tiles:
top_left[0][1], bottom_right[0][1] = 0, world_tiles - 1
# xmin, xmax, ymin, ymax
return (top_left[0][0], bottom_right[0][0], top_left[0][1],
bottom_right[0][1])
def get_tiles_range_for_zoom(self, zoom):
# get tiles - copied from mapDownloader
dlon = mapUtils.km_to_lon(mapUtils.nice_round(self.reg_width), self.center_lat)
dlat = mapUtils.km_to_lat(mapUtils.nice_round(self.reg_height))
if dlat > 170:
dlat = 170
if dlon > 358:
dlon = 358
top_left = mapUtils.coord_to_tile(
(self.center_lat + dlat / 2, self.center_lon - dlon / 2, zoom)
)
bottom_right = mapUtils.coord_to_tile(
(self.center_lat - dlat / 2, self.center_lon + dlon / 2, zoom)
)
# top_left[0][0], bottom_right[0][0], top_left[0][1], bottom_right[0][1]
# xmin, xmax, ymin, ymax
world_tiles = mapUtils.tiles_on_level(zoom)
if bottom_right[0][0] - top_left[0][0] >= world_tiles:
top_left[0][0], bottom_right[0][0] = 0, world_tiles - 1
if bottom_right[0][1] - top_left[0][1] >= world_tiles:
top_left[0][1], bottom_right[0][1] = 0, world_tiles - 1
# xmin, xmax, ymin, ymax
return(top_left[0][0], bottom_right[0][0], top_left[0][1], bottom_right[0][1])
def query_region_around_location(self, lat0, lon0, dlat, dlon, zoom, *args, **kwargs):
if dlat > 170:
lat0 = 0
dlat = 170
if dlon > 358:
lon0 = 0
dlon = 358
top_left = mapUtils.coord_to_tile((lat0 + dlat / 2, lon0 - dlon / 2, zoom))
bottom_right = mapUtils.coord_to_tile((lat0 - dlat / 2, lon0 + dlon / 2, zoom))
self.query_region(top_left[0][0], bottom_right[0][0], top_left[0][1], bottom_right[0][1], zoom, *args, **kwargs)
def query_region_around_location(self, lat0, lon0, dlat, dlon, zoom, *args,
**kwargs):
if dlat > 170:
lat0 = 0
dlat = 170
if dlon > 358:
lon0 = 0
dlon = 358
top_left = mapUtils.coord_to_tile(
(lat0 + dlat / 2, lon0 - dlon / 2, zoom))
bottom_right = mapUtils.coord_to_tile(
(lat0 - dlat / 2, lon0 + dlon / 2, zoom))
self.query_region(top_left[0][0], bottom_right[0][0], top_left[0][1],
bottom_right[0][1], zoom, *args, **kwargs)
def coord_to_screen(self, x, y, zl):
mct = mapUtils.coord_to_tile((x, y, zl))
xy = mapUtils.tile_coord_to_screen((mct[0][0], mct[0][1], zl),
self.get_allocation(), self.center)
if xy:
for x, y in xy:
return (x + mct[1][0], y + mct[1][1])
def coord_to_screen(self, x, y, zl):
mct = mapUtils.coord_to_tile((x, y, zl))
xy = mapUtils.tile_coord_to_screen(
(mct[0][0], mct[0][1], zl), self.get_allocation(), self.center
)
if xy:
for x,y in xy:
return (x + mct[1][0], y + mct[1][1])