[MapProxy] Merging 3 sources for different scale levels as a single service
Josh Norton
joshnortons at gmail.com
Tue Aug 29 13:49:47 PDT 2017
Thanks for your help Just.
I hadn't tried applying the min_res and max_res directly to the source only
against a grid. My configuration is below.
Josh
*services:*
* demo:*
* tms:*
* wmts:*
* restful: true*
* kvp: true*
*layers:*
*- name: Topo*
* title: Topo*
* sources: [topo_cache_gpk]*
*caches:*
* topo_cache_gpk:*
* sources: [topo_esri_source, linz_topo250_source, linz_topo50_source]*
* grids: [GLOBAL_WEBMERCATOR]*
* cache:*
* type: geopackage*
* filename: /opt/mapproxy/cache_data/topo_tiles.gpk*
* table_name: topo*
*sources:*
* topo_esri_source:*
* type: tile*
* transparent: true*
* grid: GLOBAL_WEBMERCATOR*
* url:
http://agshost/arcgis/rest/services/Topo/MapServer/tile/%(z)s/%(y)s/%(x)s*
* linz_topo250_source:*
* type: tile*
* transparent: true*
* grid: GLOBAL_WEBMERCATOR*
* url:
http://tiles-a.data-cdn.linz.govt.nz/services;key=api_key/tiles/v4/layer=2324/EPSG:3857/%(z)s/%(x)s/%(y)s.png*
* min_res: 1222*
* max_res: 38*
* linz_topo50_source:*
* type: tile*
* transparent: true*
* grid: GLOBAL_WEBMERCATOR*
* url:
http://tiles-a.data-cdn.linz.govt.nz/services;key=api_key/tiles/v4/layer=2343/EPSG:3857/%(z)s/%(x)s/%(y)s.png*
* min_res: 38*
* max_res: 0.2*
*globals:*
* image:*
* formats:*
* default_format:*
* format: image/png*
* colors: 0*
* resampling_method: bilinear*
On 26 August 2017 at 00:37, Just van den Broecke <just at justobjects.nl>
wrote:
> Hi,
>
> I just did almost the same, though with 2 sources and without
> cache-storage. After quite some fiddling with configs, it worked by playing
> with min_res, max_res and transparency on the source-level.
> Keep the grid defs as is (GLOBAL_WEBMERCATOR in your case). Tiles are here
> only requested from 1 TMS remote source at a time, otherwise a transparent
> png is returned by source locally, my config-sketch:
>
> layers:
> - name: combilayer
> title: combined topo..
> sources: [combi_cache]
>
> caches:
> combi_cache:
> grids: [dutch_grid]
> disable_storage: true
> sources: [source1, source2]
> format: image/png
> meta_buffer: 0
>
> sources:
> source1:
> type: tile
> url: URL1..%(tms_path)s.png
> transparent: true
> grid: dutch_grid
> max_res: 0.84
>
> source2:
> type: tile
> url: URL2..%(tms_path)s.png
> transparent: true
> grid: dutch_grid
> min_res: 0.84
>
> grids:
> dutch_grid:
> tile_size: [256, 256]
> srs: 'EPSG:28992'
> bbox: [-285401.920, 22598.080, 595401.920, 903401.920]
> bbox_srs: 'EPSG:28992'
> res: [3440.64, 1720.32, 860.16, 430.08, 215.04, 107.52, 53.76, 26.88,
> 13.44, 6.72, 3.36, 1.68, 0.84, 0.42, 0.21, 0.105, 0.0525]
>
> etc, no specific grid definitions. Though with 3 layers you have to play
> with min_res and max_res for the "middle" scale 1:250. Somehow I got errors
> "min_res > "max_res" when both specified on source. Looks like they need to
> be reversed? Maybe others can fill in here.
>
> Best,
>
> Just van den Broecke
>
> On 25-08-17 02:06, Josh Norton wrote:
>
>> Hi there,
>>
>> I'm wanting to merge 3 tiled sources into a single tiled service as below:
>>
>> Global topo service for levels 0-7
>> Country 1:250k service for levels 8-12 (rendering the global tiles in
>> areas outside the country covered)
>> Country 1:50k service for levels 13- (rendering the global tiles for
>> areas outside the country covered)
>>
>> I have been able to merge the first 2 services where the country 250k
>> renders on top of the global service but I am unable to control the
>> scale that the 250k or 50k tiles start to render.
>> I have tried specifying a set resolution list, setting min_res and
>> max_res, num_levels etc
>>
>> A working configuration file is below with some options commented out in
>> the grid section that do not produce the desired results.
>> Grateful for any help anyone can offer.
>>
>> Josh
>>
>>
>> /services:/
>> / demo:/
>> / tms:/
>> / wmts:/
>> / restful: true/
>> / kvp: true/
>> /
>> /
>> /layers:/
>> /
>> /
>> /- name: Topo/
>> / title: Topo/
>> / sources: [topo_cache_gpk]/
>> /
>> /
>> /- name: LINZtopo50/
>> / title: LINZ Topo 50/
>> / sources: [linz_topo50_cache_gpk]/
>> /
>> /
>> /- name: LINZtopo250/
>> / title: LINZ Topo 250/
>> / sources: [linz_topo250_cache_gpk]/
>> / /
>> /caches:/
>> /
>> /
>> / topo_cache_gpk:/
>> / sources: [topo_esri_source, linz_topo250_source]/
>> / grids: [GLOBAL_WEBMERCATOR]/
>> / cache:/
>> / type: geopackage/
>> / filename: /opt/mapproxy/cache_data/topo_tiles.gpk/
>> / table_name: topo/
>> /
>> /
>> / topo_esri_cache_gpk:/
>> / sources: [topo_esri_source]/
>> / grids: [GLOBAL_WEBMERCATOR]/
>> / cache:/
>> / type: geopackage/
>> / filename: /opt/mapproxy/cache_data/topo_esri_tiles.gpk/
>> / table_name: topo_esri/
>> /
>> /
>> / linz_topo50_cache_gpk:/
>> / sources: [linz_topo50_source]/
>> / grids: [GLOBAL_WEBMERCATOR]/
>> / cache:/
>> / type: geopackage/
>> / filename: /opt/mapproxy/cache_data/LINZ_topo50_tiles.gpk/
>> / table_name: linz_topo50/
>> / /
>> / linz_topo250_cache_gpk:/
>> / sources: [linz_topo250_source]/
>> / grids: [GLOBAL_WEBMERCATOR]/
>> / cache:/
>> / type: geopackage/
>> / filename: /opt/mapproxy/cache_data/LINZ_topo250_tiles.gpk/
>> / table_name: linz_topo250/
>> /
>> /
>> /sources:/
>> / topo_esri_source:/
>> / type: tile/
>> / grid: GLOBAL_WEBMERCATOR/
>> / url:
>> http://10.0.0.232:6080/arcgis/rest/services/Topo/MapServer/t
>> ile/%(z)s/%(y)s/%(x)s
>> <http://10.0.0.232:6080/arcgis/rest/services/Topo/MapServer/
>> tile/%(z)s/%(y)s/%(x)s>/
>> /
>> /
>> / linz_topo50_source:/
>> / type: tile/
>> / transparent: true/
>> / grid: 'topo50grid'/
>> / url:
>> http://tiles-a.data-cdn.linz.govt.nz/services;key=dd53dc504e
>> 3b4c37a627fa41a74ffd2b/tiles/v4/layer=2343/EPSG:3857/%(z)s/
>> %(x)s/%(y)s.png
>> <http://tiles-a.data-cdn.linz.govt.nz/services;key=dd53dc504
>> e3b4c37a627fa41a74ffd2b/tiles/v4/layer=2343/EPSG:3857/%(z)s/
>> %(x)s/%(y)s.png>/
>> / /
>> / linz_topo250_source:/
>> / type: tile/
>> / transparent: true/
>> / grid: 'topo250grid'/
>> / url:
>> http://tiles-a.data-cdn.linz.govt.nz/services;key=dd53dc504e
>> 3b4c37a627fa41a74ffd2b/tiles/v4/layer=2324/EPSG:3857/%(z)s/
>> %(x)s/%(y)s.png
>> <http://tiles-a.data-cdn.linz.govt.nz/services;key=dd53dc504
>> e3b4c37a627fa41a74ffd2b/tiles/v4/layer=2324/EPSG:3857/%(z)s/
>> %(x)s/%(y)s.png>/
>> /
>> /
>> /grids:/
>> / topo250grid:/
>> / base: GLOBAL_WEBMERCATOR/
>> / #num_levels: 6/
>> / #max_res: 4891.96981025128/
>> / #res: [611.49622628141, 305.748113140705, 152.8740565703525,
>> 76.43702828517625, 38.21851414258813, 19.109257071294063]/
>> / topo50grid:/
>> / base: GLOBAL_WEBMERCATOR/
>> / #res: [9.554628535647032, 4.777314267823516, 2.388657133911758,
>> 1.194328566955879, 0.5971642834779395, 0.29858214173896974] /
>> /
>> /
>> /# globals:/
>> /# image:/
>> /# formats:/
>> /# default_format:/
>> /# format: image/png/
>> /# colors: 0/
>> /# resampling_method: bilinear/
>>
>>
>>
>>
>>
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>>
>>
>
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