Лягатып OpenStreetMap OpenStreetMap

Дзёньнік pratikyadav

Апошнія запісы ў дзёньніку

Mapbox Satellite for Machine Learning

Дасланы pratikyadav 18 Травень 2018 на English.

All Mapbox users, using an access token from their own account, are allowed to create derivatives from Mapbox Satellite for contribution to OpenStreetMap via manual or automated processes for free.

Guidelines

  • All extractions must be non-commerical or OSM-improving. Examples:
    • an academic researcher could use the imagery for a non-OSM use
    • a company or individual could use the imagery for adding to OSM
  • All use of this service is subject to the Mapbox TOS, with a link to our TOS.
  • If you have another purpose for your extractions, get in touch with us via sales@mapbox.com.
  • You’ll need to have a Mapbox account and to use a token from your Mapbox account for all your ML requests. This will help us interpret any traffic issues and communicate with you if they come up.
  • Safe rate limit for downloading satellite tiles is 100 request per second. If you want to exceed that rate, please reach out to community@mapbox.com .

Whether powered by machine learning or not, we’d love to hear about your imagery use cases. And as always, if you have any questions, please reach out to us!

Imagery update for Mapbox Satellite layer

Дасланы pratikyadav 18 Верасень 2017 на English.

We recently rolled out 8.2 million km² of high-resolution satellite imagery from DigitalGlobe to our base map. Read more about it here → https://blog.mapbox.com/updating-8-2-million-km%C2%B2-of-high-resolution-satellite-imagery-b68070bdf4b2

All this imagery is available to be used by OpenStreetMap contributors for mapping! 🎉

Here is a breakout of the extents:

Asia Major cities and urban corridors in Middle East, India, China, Turkey, Vietnam, Thailand, Malaysia, South Korea, Indonesia, and the Philippines.

Africa Egypt and parts of Kenya.

Europe Major cities in Poland, Ukraine, Romania, Iceland, and Hungary. Also Paris and Moscow.

South America Major parts of Brazil, Paraguay, Uruguay, Argentina, and Chile.

North America Large parts of Mexico, Cuba, and Central America, along with southern cities of Canada.

This imagery will enable mappers to trace intricate details like buildings intrusions, turn lanes, trees and so much more! Happy mapping! 🌐

Rio de Janeiro Rio de generio

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Joining HOT

Дасланы pratikyadav 6 Люты 2017 на English.

I am PratikYadav and I work with Mapbox based in Bangalore, India. I came to know about OpenStreetMap and HOT after joining Mabox two years ago and been involved with both of them ever since. I started with taking part in the HOT projects where Mapbox team joins to help HOT in mapping and validation of various tasks over the year.From past few, month I have been working with HOT imagery coordination group to make sure the the request coming for imagrey can be quickly processed by Mapbox.

I worked with Mikel last year to understand the spatial spread of all past HOT tasks. 1

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Месцазнаходжаньне: Castro District, Mission District, San Francisco, California, 94114, United States

7.5cm aerial imagery for Washington, DC

Дасланы pratikyadav 23 Студзень 2017 на English.

We just updated Mapbox basemap imagery in Washington, DC with 2015 aerial imagery at 3 inch (7.5 cm) resolution.

DC-3 Cherry blossoms at the Martin Luther King, Jr. Memorial

The source data is openly licensed by DC.gov, thanks to the District’s open data initiative.

The imagery is ready for tracing in OpenStreetMap, where its high resolution will help with detail mapping for buildings, parks, and navigation features like turn lanes.

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Tell me about your username

Дасланы pratikyadav 25 Верасень 2016 на English.

My user name is same as my real name: Pratik Yadav. But I find the stories of usernames (that are not their real name) very fascinating.

I met a few people in SOTM where they shared how their username relates to their hobby, interest and sometimes a hidden meaning.

If you have a username that has a story, post in comment.

:)

भोपाल वार्ड नक्शा

Дасланы pratikyadav 11 Жнівень 2016 на English.

screen shot 2016-08-11 at 4 16 52 pm

http://www.bhopalmunicipal.com/city-information/informative-map.html

नगर पालिका भोपाल द्वारा प्रकाशित नक्शा जो के सारे वार्डस को दिखता है.

OSM पर यह जानकारी अभी नहीं है.

English version

Published by Bhopal Municipal Corporation, the map shows all admin-wards.

The information is not yet in OSM and could be a good addition.

Месцазнаходжаньне: Peer Gate Area, Ibrahimpura, Bhopal, Huzur Tahsil, Bhopal, Madhya Pradesh, 462001, India

Open Peer Review Process at Mapbox

Дасланы pratikyadav 20 Красавік 2016 на English. Апошняе абнаўленьне 25 Красавік 2016.

As part of the Mapbox Data team, we make sure that our contributions to OpenStreetMap from our mapping projects, through user feedback and support to HOT activations are at par with the OpenStreetMap data quality standards. One of the ways we check data quality is through our weekly manual peer review process.

To be more open towards our QA processes, we are bringing our manual peer review accessible for anyone to participate.

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The process of manual peer review are as follows:

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HOT Global Footprint

Дасланы pratikyadav 15 Люты 2016 на English.

Last month I worked on a map of all HOT tasks (until January 5, 2016).

screen shot 2016-01-08 at 5 13 57 pm

The map is available at http://pratikyadav.github.io/HOT-Task-Map

You can read more about it at https://hotosm.org/updates/2016-02-08_the_global_footprint_of_hot

If you are interested in the code and shapefile of the task, then see this repo at GitHub https://github.com/pratikyadav/HOT-Task-Map

I prefer staying on JOSM while mapping and try to find missing features using satellite imagery. This becomes hard sometimes as one has to download OSM data to actually see if that feature (building, road, waterway etc) is present or not. To make this a little simple, I use custom Mapbox layers made using Mapbox Studio Classic.

The url of the layer created will be something like https://api.mapbox.com/v4/pratikyadav.93f1df6f/page.html?access_token=pk.eyJ1IjoicHJhdGlreWFkYXYiLCJhIjoiMTA2YWUxNjRkNmFmZGQ4YzAxZWFiNDk0NDM1YjE1YjAifQ.4P6N5dNmA_WQXd3BsJvu5w#14/23.2687/77.3938

Add tms[99]: at the start of the layer url, remove zoom/lat/log from the end and replace page.html? with {zoom}/{x}/{y}.png?.

The new TMS url ready to be used in JOSM will look something like this-

tms[99]:https://api.mapbox.com/v4/pratikyadav.93f1df6f/{zoom}/{x}/{y}.png?access_token=pk.eyJ1IjoicHJhdGlreWFkYXYiLCJhIjoiMTA2YWUxNjRkNmFmZGQ4YzAxZWFiNDk0NDM1YjE1YjAifQ.4P6N5dNmA_WQXd3BsJvu5w

Open imagery preferences in JOSM and use add new tms tab to add the layer url and layer name.

Roads

tms[99]:https://api.mapbox.com/v4/pratikyadav.93f1df6f/{zoom}/{x}/{y}.png?access_token=pk.eyJ1IjoicHJhdGlreWFkYXYiLCJhIjoiMTA2YWUxNjRkNmFmZGQ4YzAxZWFiNDk0NDM1YjE1YjAifQ.4P6N5dNmA_WQXd3BsJvu5w

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Mapbox Mapping Project Guide

Дасланы pratikyadav 17 Снежань 2015 на English.

Over the last few months, we’ve begun and completed several mapping projects. As our team has grown, we’ve needed clear guidance for the team to run a lead a mapping task from inception to completion in line with the best practices of mapping and ensuring the highest quality of contributions to the map.

12314225_818843284893542_7459455561395015025_o Mapbox team during a mapping huddle

We have put together a simple guide to how the data team approaches a mapping project on OSM.

Broadly the guide provides a checklist for a project lead to work through during the different phases of a mapping project:

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Chennai Flood

Дасланы pratikyadav 3 Снежань 2015 на English.

The south Indian city of Chennai is facing one of the biggest floods in a century with close to 120 cm rainfall this month. It has already claimed 200 lives and has affected the lives of over 6 million residents. The meteorological department has forcasted more rain in the next 48 hours and the situation has been termed crucial.

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Source: twitter

Members of the Indian OSM community created tool to crowdsource reports of flooding, and has recieved reports of over 5700 flooded streets in 48 hours. Check the flood-map to see the extent of flooding in the city.

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Месцазнаходжаньне: CMWSSB Division 58, Zone 5 Royapuram, Chennai, Tamil Nadu, 600001, India

Tokyo Road Improvement

Дасланы pratikyadav 9 Лістапад 2015 на English.

As part of the Japan Road improvement series, we just completed the most important project of aligning major roads in Tokyo to orthorectified imagery from GSI using the tasking manager.

screen shot 2015-11-09 at 2 46 13 pm

The project included: - Realigning and merging major highways (motorway, trunk, primary and secondary) - Create dual carriageways on divided highways with link roads and correct oneways

Compared to the previous road improvement projects concluded in Japan (Kyushu , Osaka , Mito , Fukushima , Ishikawa , Beppu-Oita , Aomori and North Mutsu ), Tokyo was in better state in terms of road alignment with GSI imagery.

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Japan Major Road Alignment task at TeachOSM

Дасланы pratikyadav 26 Кастрычнік 2015 на English.

In light of the previous post by planemad and MAPconcierge about major road realignment issues in Japan, OSM Japan community is now focusing on fixing roads in Tokyo and surrounding areas.

2015-10-23 12 51 42 TeachOSM Tasking Manager for Tokyo. http://tasks.teachosm.org/project/91

The objective is to:

  • Realign and merge major highways (motorway, trunk, primary and secondary)
  • Create dual carriageways on major highways with link roads and correct oneways

Being the country’s capital, and host to many Japanese mappers, the overall quality of data is very good. But, another pass of review can certainly improve the data.

Come join your hands with Japan OSM community by contributing to this task. The instructions are available in English, Japanese, and Russian, hit me or MAPconcierge if you want to translate in your own language.

Visit http://tasks.teachosm.org/project/91 for details on how to map.

Happy Mapping.

भारत की सबसे जायद उपयोग में आने वाली भाषा हिंदी है. परन्तु ओपन स्ट्रीट मैप पे हिंदी टैग्स की संख्या काफी काम है. टैग इन्फो के माध्यम से देखा जा सकता है की हिंदी भाषीय टैग्स की कुल गिनती केवल २३०९ है. इनमे से ४३१ नोड्स भारत के अंदर आते है.

screen shot 2015-10-13 at 4 06 38 pm

भारत में जयदतर हिंदी टैग्स केवल बड़े शहर में सिमित है.

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Mapping Streams in Mountain Areas

Дасланы pratikyadav 17 Жнівень 2015 на English.

Some tricks to map Streams in Mountain Area.

Mapping streams/rivers in mountain region could be very tricky. Sometimes it’s difficult to differentiate between the valley and the peaks. Other times the imagery is covered with cloud, snow or not visible due to the shadow. image Satellite Image showing parts of Gangotri National Park, India.

A few steps can be very helpful to deal with such problems.

Overview of the area

Before jumping into the task of mapping, take some time to have an overview of the whole area. This helps to have a better understanding of the region.

Switching between layers

Better to select the layer that best shows your interest features clearly. A better resolution imagery is not always the best one.

Using terrain layer

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Месцазнаходжаньне: Azad Market, Ibrahimpura, Bhopal, Huzur Tahsil, Bhopal, Madhya Pradesh, 462001, India