Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-06 Thread Paul Hartmann
On 06.07.2015 21:15, Wiktor Niesiobedzki wrote: 2015-07-06 10:54 GMT+02:00 Paul Hartmann phaau...@gmail.com: Strange... It would be interesting to see how other projects are handling this, e.g. QGIS and GDAL. This is good hint. I've checked QGIS, but it actually uses GDAL definitions. And

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-05 Thread Wiktor Niesiobedzki
2015-07-04 22:33 GMT+02:00 Wiktor Niesiobedzki o...@vink.pl: 2015-07-02 23:57 GMT+02:00 Paul Hartmann phaau...@gmail.com: On 02.07.2015 23:33, Wiktor Niesiobedzki wrote: I think it should go into the data/epsg file. The normal epsg file for Proj4 contains this info, e.g.: # ATS77 / UTM zone

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-04 Thread Wiktor Niesiobedzki
2015-07-02 23:57 GMT+02:00 Paul Hartmann phaau...@gmail.com: On 02.07.2015 23:33, Wiktor Niesiobedzki wrote: I think it should go into the data/epsg file. The normal epsg file for Proj4 contains this info, e.g.: # ATS77 / UTM zone 19N 2219 +proj=utm +zone=19 +a=6378135 +b=6356750.304921594

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-03 Thread Dirk Stöcker
On Thu, 2 Jul 2015, Wiktor Niesiobedzki wrote: Currently I'm working on WMTS support. As some of you may know (and those who do not, I refer to http://www.opengeospatial.org/standards/wmts) uses notion of scaleDenominator that's crucial to tile positioning. More less - scaleDenominator tell how

[josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-02 Thread Wiktor Niesiobedzki
Hi, Currently I'm working on WMTS support. As some of you may know (and those who do not, I refer to http://www.opengeospatial.org/standards/wmts) uses notion of scaleDenominator that's crucial to tile positioning. More less - scaleDenominator tell how many meters are on the tile per pixel. I

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-02 Thread Paul Hartmann
On 02.07.2015 21:47, Wiktor Niesiobedzki wrote: Currently I'm working on WMTS support. As some of you may know (and those who do not, I refer to http://www.opengeospatial.org/standards/wmts) uses notion of scaleDenominator that's crucial to tile positioning. More less - scaleDenominator tell how

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-02 Thread Wiktor Niesiobedzki
2015-07-02 23:12 GMT+02:00 Paul Hartmann phaau...@gmail.com: On 02.07.2015 21:47, Wiktor Niesiobedzki wrote: Currently I'm working on WMTS support. As some of you may know (and those who do not, I refer to http://www.opengeospatial.org/standards/wmts) uses notion of scaleDenominator that's

Re: [josm-dev] WMTS scales - proper definition of 1m along meridian

2015-07-02 Thread Paul Hartmann
On 02.07.2015 23:33, Wiktor Niesiobedzki wrote: I understand, that how much real meters you get per unit of latitude as well as per unit of longitude differs for different part of the ellipsoid/sphere. But that's not what WMTS specification ask. The crucial part of spec says: pixelSpan =