Project

gcps2tiles

0.0
No commit activity in last 3 years
No release in over 3 years
gcps2tilesmh61503891/gcps2tilesHomepageDocumentationSource CodeBug TrackerWiki
A generator of TMS (Tile Map Service) tiles from a image and its GCPs (Ground Control Points).
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Popularity
Downloads
2,664
Stars
1
Forks
0
Watchers
1
 Releases
Current version
0.0.1
Total releases
1
First release
2016-07-27
Latest release
2016-07-27
 Development
Primary Language
Ruby
Licenses
MIT
Average date of last 50 commits
2016-07-27
Reverse Dependencies
0

 Dependencies

Development

bundler
~> 1.12
pry
>= 0
rake
~> 10.0
rspec
~> 3.0

Runtime

colorize
>= 0
memoizable
>= 0
proj4rb
>= 0
systemu
>= 0
thor
>= 0
 Project Readme

Version

gcps2tiles

A generator of TMS (Tile Map Service) tiles from a image and its GCPs (Ground Control Points).

Installation

$ gem install gcps2tiles

Dependencies

  1. gdal_translate
  2. gdal2tiles.py

These command-line tools are executed by systemu or open3 from gcps2tiles.

Example for Instllation

  • macOS
  • macPorts
  • RubyGems
# for gdal_translate
$ sudo port install gdal
$ which -a gdal_translate
/opt/local/bin/gdal_translate

# for gdal2tiles.py
$ sudo port install py27-gdal
$ which /opt/local/share/doc/py27-gdal/examples/scripts/gdal2tiles.py
/opt/local/share/doc/py27-gdal/examples/scripts/gdal2tiles.py

# for gcps2tiles
$ sudo port install proj
$ gem install proj4rb -- --with-opt-include=/opt/local/include --with-opt-lib=/opt/local/lib
$ gem install gcps2tiles
$ which gcps2tiles 
/Users/masayuki/.rbenv/shims/gcps2tiles

Usage

# run help of gcps2tiles
$ gcps2tiles help
Commands:
  gcps2tiles generate --gcps-file-path=GCPS_FILE_PATH --image-file-path=IMAGE_FILE_PATH  # generator TMS (Tile Map Service) tiles from a image and its GCPs (Ground Control Points) 
  gcps2tiles help [COMMAND]                                                              # Describe available commands or one specific command

Options:
  [--gdal-translate-path=GDAL_TRANSLATE_PATH]  
                                               # Default: gdal_translate
  [--python-path=PYTHON_PATH]                  
                                               # Default: python
  [--gdal2tiles-path=GDAL2TILES_PATH]          
                                               # Default: gdal2tiles.py

Example for Usage

The command ls displays a raster image and its gcps points file. The txu-oclc-6550386.jpg is download from http://www.lib.utexas.edu/maps/ams/japan_city_plans/. The image's URL is http://www.lib.utexas.edu/maps/ams/japan_city_plans/txu-oclc-6550386.jpg. The txu-oclc-6550386.points is generated from the image by hand work with QGIS's Georeferencer GDAL Plugin.

$ ls
txu-oclc-6550386.jpg    txu-oclc-6550386.points

The command cat displays the content of txu-oclc-6550386.points.

$ cat txu-oclc-6550386.points 
mapX,mapY,pixelX,pixelY,enable
14942011.24356307648122311,4231785.85050928499549627,1933.549259681095009,-1827.33727220956689052,1
14942204.06600598804652691,4231988.44545324612408876,2026.88463391136860992,-1723.68220134874627547,1
14942476.045682268217206,4231792.49753643479198217,2154.75512528474064311,-1818.79513097949893563,1
14940591.59045474231243134,4232046.88148782681673765,1223.80780346820824889,-1725.78961946050026199,1
14939983.62762918882071972,4233524.63498547300696373,913.52901740949482701,-991.62939136701231746,1
14939850.02285714447498322,4233210.41635492164641619,838.98519306166406295,-1146.04159894466192782,1
14938191.42381835728883743,4235546.01964407879859209,0,0,1
14948244.77059711329638958,4235127.56189436092972755,5000,0,1
14948112.61969627812504768,4227568.21257229428738356,5000,-3841,1
14938057.33083977922797203,4227986.65016794484108686,0,-3840.99765173410287389,1

The command gcps2tiles generates TMS (Tile Map Service) tiles from txu-oclc-6550386.jpg and txu-oclc-6550386.points into the directory txu-oclc-6550386.

$ gcps2tiles generate --gcps-file-path=txu-oclc-6550386.points --image-file-path=txu-oclc-6550386.jpg --output-dir-path txu-oclc-6550386
run gdal_translate -of VRT -gcp 1933.549259681095 1827.337272209567 14942011.243563076 4231785.850509285 -gcp 2026.8846339113686 1723.6822013487463 14942204.066005988 4231988.445453246 -gcp 2154.7551252847406 1818.795130979499 14942476.045682268 4231792.497536435 -gcp 1223.8078034682082 1725.7896194605003 14940591.590454742 4232046.881487827 -gcp 913.5290174094948 991.6293913670123 14939983.627629189 4233524.634985473 -gcp 838.9851930616641 1146.041598944662 14939850.022857144 4233210.416354922 -gcp 0.0 -0.0 14938191.423818357 4235546.019644079 -gcp 5000.0 -0.0 14948244.770597113 4235127.561894361 -gcp 5000.0 3841.0 14948112.619696278 4227568.212572294 -gcp 0.0 3840.997651734103 14938057.33083978 4227986.650167945 txu-oclc-6550386.jpg /var/folders/cc/470s1lj92dx_7z9ykv36kt0m0000gn/T/txu-oclc-6550386.vrt20160727-40569-n8ta9b
run python gdal2tiles.py --s_srs epsg:3857 /var/folders/cc/470s1lj92dx_7z9ykv36kt0m0000gn/T/txu-oclc-6550386.vrt20160727-40569-n8ta9b 
python: can't open file 'gdal2tiles.py': [Errno 2] No such file or directory
#<Process::Waiter:0x007fed4d896d30 dead>
#<Process::Status: pid 40599 exit 2>

To remove the error python: can't open file 'gdal2tiles.py': [Errno 2] No such file or directory, you can set a path to the command-line tool.

$ gcps2tiles generate --gcps-file-path=txu-oclc-6550386.points --image-file-path=txu-oclc-6550386.jpg --output-dir-path txu-oclc-6550386 --gdal2tiles-path=/opt/local/share/doc/py27-gdal/examples/scripts/gdal2tiles.py
run gdal_translate -of VRT -gcp 1933.549259681095 1827.337272209567 14942011.243563076 4231785.850509285 -gcp 2026.8846339113686 1723.6822013487463 14942204.066005988 4231988.445453246 -gcp 2154.7551252847406 1818.795130979499 14942476.045682268 4231792.497536435 -gcp 1223.8078034682082 1725.7896194605003 14940591.590454742 4232046.881487827 -gcp 913.5290174094948 991.6293913670123 14939983.627629189 4233524.634985473 -gcp 838.9851930616641 1146.041598944662 14939850.022857144 4233210.416354922 -gcp 0.0 -0.0 14938191.423818357 4235546.019644079 -gcp 5000.0 -0.0 14948244.770597113 4235127.561894361 -gcp 5000.0 3841.0 14948112.619696278 4227568.212572294 -gcp 0.0 3840.997651734103 14938057.33083978 4227986.650167945 txu-oclc-6550386.jpg /var/folders/cc/470s1lj92dx_7z9ykv36kt0m0000gn/T/txu-oclc-6550386.vrt20160727-41911-371ieu
run python /opt/local/share/doc/py27-gdal/examples/scripts/gdal2tiles.py --s_srs epsg:3857 /var/folders/cc/470s1lj92dx_7z9ykv36kt0m0000gn/T/txu-oclc-6550386.vrt20160727-41911-371ieu txu-oclc-6550386
Generating Base Tiles:
0...10...20...30...40...50...60...70...80...90...100 - done.
Generating Overview Tiles:
0...10...20...30...40...50...60...70...80...90...100 - done.

Tips: The options for a path to a command-line tool as is follows:

  • --gdal-translate-path=GDAL_TRANSLATE_PATH] # Default: gdal_translate
  • --gdal2tiles-path=GDAL2TILES_PATH] # Default: gdal2tiles.py
  • --python-path=PYTHON_PATH] # Default: python
$ tree txu-oclc-6550386 -L 1
txu-oclc-6550386
├── 11
├── 12
├── 13
├── 14
├── 15
├── 16
├── googlemaps.html
├── openlayers.html
└── tilemapresource.xml

6 directories, 3 files
$ du -sh txu-oclc-6550386.jpg 
4.0M	txu-oclc-6550386.jpg
$ du -sh txu-oclc-6550386
 28M	txu-oclc-6550386

To show TMS tiles which generated by gdal2tiles.py.

$ open txu-oclc-6550386/openlayers.html

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.