示例#1
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    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])
示例#2
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    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])
示例#3
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    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)
示例#4
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    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)
示例#5
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 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])
示例#6
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 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])