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Dump

Dump historical image tiles into a folder.

This command will download historical imagery from within a region on a specified date and save all 256x256 pixel image tiles to a folder. If imagery is not available for the specified date, the downloader will use the image from the next nearest date.

Usage

 GEHistoricalImagery dump --lower-left [LAT,LONG] --upper-right [LAT,LONG] -z [N] -d [yyyy/mm/dd] -o [Directory] [--format [FORMAT_STRING]] [-p [N]]

  --lower-left=LAT,LONG                             Required. Geographic coordinate of the lower-left (southwest) corner
                                                    of the rectangular area of interest.

  --upper-right=LAT,LONG                            Required. Geographic coordinate of the upper-right (northeast)
                                                    corner of the rectangular area of interest.

  -z N, --zoom=N                                    Required. Zoom level [1-24]

  -d yyyy/MM/dd, --date=yyyy/MM/dd                  Required. Imagery Date

  -o [Directory], --output=[Directory]              Required. Output image tile save directory

  -f [FilenameFormat], --format=[FilenameFormat]    (Default: z={Z}-Col={c}-Row={r}.jpg)
                                                    Filename formatter:
                                                      "{Z}" = tile's zoom level
                                                      "{C}" = tile's global column number
                                                      "{R}" = tile's global row number
                                                      "{c}" = tile's column number within the rectangle
                                                      "{r}" = tile's row number within the rectangle

  -p N, --parallel=N                                (Default: ALL_CPUS) Number of concurrent downloads

Examples

Download historical imagery tiles at zoom level 20 from within the region defined by the lower-left (southwest) corner 39.619819,-104.856121 and upper-right (northeast) corner 39.638393,-104.824990.

Example 1

Save the images with filenames in the format "Zoom={Z}, Column={c}, Row={r}.jpg"

{Z} will be replaced by the zoom level.

{c} will be replaced by the column number within the rectangle, starting with column 0 along the left (west) edge of the rectangle.

{r} will be replaced by the row number within the rectangle, starting with row 0 along the bottom (south) edge of the rectangle.

Command:

GEHistoricalImagery dump --lower-left 39.619819,-104.856121 --upper-right 39.638393,-104.824990 --zoom 20 --date 2024/06/05 -f "Zoom={Z}, Column={c}, Row={r}.jpg" -o ".\Tiles"

Output:

Zoom=20, Column=00, Row=00.jpg
...
Zoom=20, Column=91, Row=54.jpg

Example 2

Save the images with filenames in the format "Zoom={Z}, Global Column={C}, Global Row={R}.jpg"

{Z} will be replaced by the zoom level.

{C} will be replaced by the global column number.

{R} will be replaced by the global row number.

There are 2^zoom number of global columns, beginning with column 0 at -180 degrees longitude. There are 2^zoom number of global rows, beginning with row 0 at -180 degrees latitude. Because latitudes are constrained to [-90,90] degrees, only the middle half of the global rows are used.

Command:

GEHistoricalImagery dump --lower-left 39.619819,-104.856121 --upper-right 39.638393,-104.824990 --zoom 20 --date 2024/06/05 -f "Zoom={Z}, Global Column={C}, Global Row={R}.jpg" -o ".\Tiles"

Output:

Zoom=20, Global Column=218872, Global Row=639689.jpg
...
Zoom=20, Global Column=218963, Global Row=639743.jpg

Updated 2024/10/14