mapquest / avecado Goto Github PK

i have installed avecado on ubuntu(12.04) machine and successfully generated the tile.pbf file for sample xml files present in avecado/test directory.

Instread of giving input from Mapnik XML input file, i wants to give from postgis database.

Is it possible, else suggest me some other best way.

With Boost 1.56, it's often needed to build it from source, which is much quicker if only the libraries needed are built. This is difficult to figure out by iterating through building boost and ./configure, because it takes some time and the ./configure error messages are misleading for missing boost libraries.

The libraries currently required are program_options,thread,filesystem,python,regex,system,iostreams,date_time

when i connecting to avecado_server from my server as XMLHttpRequest it shows following message in borwser

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://localhost:7789/0/0/0.pbf. This can be fixed by moving the resource to the same domain or enabling CORS.

i know the reason for this was Access-Control-Allow-Method and Access-Control-Allow-Origin Header but i dont know how to enable those in avecado_server.

Zoom levels are generally associated with tiling schemes on top of 900913 projections. Although it's possible to build tiling schemes on top of other projections, using zoom levels in the config means that it is more difficult to use avecado for other projections.

Internally, avecado should use scale rather than zoom level, as Mapnik does. It should provide config methods which allow the user to specify either a scale or a zoom level (since the common case is likely to be 900913 still).

The adminizer will depend on gdal. This isn't a difficult dependency to meet, as basically any server running the rest of a rendering stack will need gdal, but we should add ./configure flags to disable izers.

I am using ubuntu12.06. I am executing the configure script as follows

./configure --with-boost-libdir=/usr/local/boost-1.56/lib CXX=g++-4.8 CC=gcc-4.8. But i am getting the following error

configure: We could not detect the boost libraries (version 1.53 or higher). If you have a staged boost library (still not installed) please specify $BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.
configure: error: cannot find Boost libraries, which are are required for building avecado. Please install libboost-dev.

I have started the avecado server as follows in linux machine

./avecado_server test/postgisconf.xml 7889

It works perfect when i connect the server as localhost . I couldn't connect the server from other machine using that machine's ip . Any idea on this?

Regards,
Vijay K

i'm used mapbox-gl-js client to display vector tile in browser. i use mapbox vector.pbf file it works fine but when i use avecado .pbf file larger polygon coloured like surrounded the each tile.

For example:
Here i have added only ocean polygon

Kindly Visit mapbox/mapnik-vector-tile#70

Is there any possibilities to reduce the geometries field in avecado while generating ?

{
"center":"-75.6038,40.0799,11",
"maxzoom":"16",
"metatile":"1",
"minzoom":"0",
"name":"MQ Carto Vector",
"maskLevel":0,
"format":"pbf",
"name": "Avecado Development Server",
"private": true,
"scheme": "xyz",
"tilejson": "2.0.0",
"tiles": ["http://localhost:4002/{z}/{x}/{y}.pbf"],
"vector_layers":"...omitted..."
}

There are two "name" entries

Using command-line(avecado) i can generate vector pbf file.
Now i tried using avecado_server it works fine and showing following lines

./avecado_server test/single_line.xml 7788
Loading mapnik map...
Mapnik map loaded.

But in browser side i didn't know how to retrieve vector pbf file.
I didn't get any information regarding that in avecado.

Cross-refs mapbox/mapnik-vector-tile#66

There are some API changes in mapbox/mapnik-vector-tile@1532ccc, and a vector tile spec upgrade.

Probably nothing in avecado that the linked regexs won't cover, but I wanted to get them noted down.

$ ./avecado ~/mq-carto-style-vector/mq-carto-style.tm2source/data.xml 0 0 0
Unable to make vector tile: Postgis Plugin: Bad connection
Connection string: ' dbname=MnPADB connect_timeout=4'
  encountered during parsing of layer 'natearth_ocean_10m' in Layer at line 27 of '/home/pnorman/mq-carto-style-vector/mq-carto-style.tm2source/data.xml'

Also happens without dbname and relying on PGHOST. psql works fine

https://github.com/MapQuest/mq-carto-style-vector/blob/6696477211d1240c0621921c3a7d4237d0a8304d/mq-carto-style.tm2source/data.xml reproduces the problem.

This version of the library was tested with commit 01c6b422 from Mapnik master.

Commit 01c6b422 does not yet contain mapnik/view_transform.hpp, resulting in a failing build.
Could you please update the commit id to what you are currently using?

i have cloned avecado today(3-Nov-14)

when i give a command make it shows following error

make all-am
make[1]: Entering directory /home/test/avecado/backup/avecado' CXX src/avecado.lo In file included from src/avecado.cpp:11:0: ./include/backend.hpp:61:3: error: 'backend_pbf' in namespace 'mapnik::vector' does not name a type mapnik::vector::backend_pbf m_pbf; ^ src/avecado.cpp: In function 'std::ostream& avecado::operator<<(std::ostream&, const avecado::tile&)': src/avecado.cpp:17:34: error: invalid use of incomplete type 'struct mapnik::vector::tile' bool write_ok = t.m_mapnik_tile->SerializeToZeroCopyStream(&stream); ^ In file included from ./include/avecado.hpp:4:0, from src/avecado.cpp:1: ./include/tile.hpp:10:46: error: forward declaration of 'struct mapnik::vector::tile' namespace mapnik { namespace vector { struct tile; } } ^ src/avecado.cpp: In function 'bool avecado::make_vector_tile(avecado::tile&, unsigned int, const mapnik::Map&, int, double, unsigned int, unsigned int, unsigned int, const string&, mapnik::scaling_method_e, double, boost::optional<const avecado::post_processor&>)': src/avecado.cpp:40:11: error: 'processor' in namespace 'mapnik::vector' does not name a type typedef mapnik::vector::processor<backend_type> renderer_type; ^ src/avecado.cpp:49:3: error: 'renderer_type' was not declared in this scope renderer_type ren(backend, ^ src/avecado.cpp:49:17: error: expected ';' before 'ren' renderer_type ren(backend, ^ src/avecado.cpp:58:3: error: 'ren' was not declared in this scope ren.apply(scale_denominator); ^ src/avecado.cpp:61:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ make[1]: *** [src/avecado.lo] Error 1 make[1]: Leaving directory/home/test/avecado/backup/avecado'
make: *** [all] Error 2

Trying to build avocado out of the box fails:

On ubuntu 15.04
g++ 4.9.2
Using branch master for avocado
Using branch master for mapnik-vector-tile as git submodule

./configure is successfull
calling 'make' produce the following error:

# make
make  all-am
make[1]: Entering directory '/home/dmarteau/projets/mappy/git-lbs/avecado'
  CXX      src/make_vector_tile.lo
In file included from src/make_vector_tile.cpp:7:0:
mapnik-vector-tile/src/vector_tile_processor.hpp:13:23: fatal error: clipper.hpp: No such file or directory
 #include "clipper.hpp"
                       ^
compilation terminated.
Makefile:1323: recipe for target 'src/make_vector_tile.lo' failed
make[1]: *** [src/make_vector_tile.lo] Error 1
make[1]: Leaving directory '/home/dmarteau/projets/mappy/git-lbs/avecado'
Makefile:807: recipe for target 'all' failed
make: *** [all] Error 2

Include path problem ?

Note that building stand alone mapnik-vector-tile (i.e cd mapnik-vector-tile && make) is succeessfull.

As a follow-up to #23 (comment)

All renderers support accept an optional hashmap of key:values (mapnik/mapnik#2553), which are apparently passed down to the postgis plugin.

Do we want to pass down zoom from avecado? It would make SQL queries that are zoom-dependent easier to write, but data styles using those queries would become less compatible (e.g. not work with mapbox-studio)

If the database connection fails and --thread-hint is >1 avecado core dumps.

pnorman@pnorman-desktop:~/avecado$ ./avecado_server --thread-hint 4 ~/mq-carto-style-vector/mq-carto-style.tm2source/data.xml 4002
Loading mapnik map...Loading mapnik map...

Loading mapnik map...
Loading mapnik map...
terminate called recursively
terminate called after throwing an instance of 'Aborted (core dumped)
pnorman@pnorman-desktop:~/avecado$ ./avecado_server --thread-hint 1 ~/mq-carto-style-vector/mq-carto-style.tm2source/data.xml 4002
Loading mapnik map...
Exception: Postgis Plugin: Bad connection
Connection string: ' connect_timeout=4'
  encountered during parsing of layer 'water' in Layer at line 26 of '/home/pnorman/mq-carto-style-vector/mq-carto-style.tm2source/data.xml'

Fixing the database parameters fixes both 1 and 4 threads.

On going with this #23
i have found some geometries(lines) are overlapped.
Example take Admin boundaries

Correct taken from mapbox

Admin_level = 2 two lines overlapped

Admin_level = 2, 3 and 4 are overlapped

i dont want this overlapping, instead i just show the higher admin_level line. Is it possible to control in avecado ?

The data.xml for Mapnik includes information for returning a tilejson

That JSON fragment doesn't include all the information needed for a tilejson, but other parameters provide the name, min/max zoom, center. The required "tiles" key may need another command line option, since that varies depending on the hostname, and if you are accessing it remotely, localhost doesn't work.

To-do:

• Can we get the parameters from Mapnik, or do we parse the XML ourselves?

mapbox/tilejson-spec#14 has some examples of the format, since it's not formally documented

See #36 for background.

The build docs should mention git submodules, and show how to init and update them before the build.

The build process should check for the presence of these files at configure-time and give a sensible error message.

Running

./configure --prefix=$HOME/avecado --with-boost=$HOME/boost \
--with-mapnik-config=$HOME/mapnik/bin/mapnik-config

I get the error

configure: error: Package requirements (libcurl >= 7.30) were not met:

No package 'libcurl' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables LIBCURL_CFLAGS
and LIBCURL_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

pkg-config wasn't picking up libcurl, so I tried LIBCURL_LIBS="-L/usr/lib/x86_64-linux-gnu -lcurl" andLIBCURL_CFLAGS=curl-config --cflags LIBCURL_LIBS=curl-config --libs``, neither worked.

The tilejson specification says that min and max zoom are integers but the json produced has strings

maxzoom":"16",
"metatile":"1",
"minzoom":"0",

This appears to be an issue for minzoom, maxzoom, center, and perhaps bounds. I wouldn't be surprised if metatile was also expected to be an integer.

Generating .pbf file size is higher in size and it kills my bandwidth. so based on request header i need to set Content-Encoding : gzip in response and gzip tile.get_data() in rep.content.