Comments (4)
MH Talukas PDFs and shapefiles comparison using QGIS software
Taluka PDF maps from MRSAC: http://www.mrsac.gov.in/en/taluka-maps
pages go till http://www.mrsac.gov.in/en/taluka-maps?page=0,12
Each PDF has outlines and names of villages in the Taluka.
MH Villages shapefile : https://drive.google.com/open?id=0B3gxOiUzXTR-RVdZNXh4X1huUG8
What we have to do is
- Open PDF of taluka
- Load MH Villages shapefile in QGIS and filter down to the taluka in focus
- Set display properties to show village name as label
- Visually inspect both, and make notes of any discrepancies.
Possible discrepancies
- Some villages are shown to be under another taluka
- One village is split into multiple parts in the shapefile.
- Names are different for the same location/shape in PDF and shapefile
- Boundaries don't relate.
Discrepancies can be logged in this tracking sheet (request organisers for access), or can be compiled separately if there is more details. We should try as far as possible to standardise it into tables and not keep it verbose.
Larger aim of the exercise
To document discrepancies between the official PDFs and the villages shapefile that Datameet has
Why
- Shapefile has census 2011 codes for each village, which the Taluka PDFs do not have
- Shapefile has village maps in digitized geospatial data form, can be immensely useful for researchers
- But it is compiled from non-official sources, so it needs to be audited to ensure that it is showing accurate information as per official data and can be relied upon.
- The PDFs are officially published by state agency MRSAC for public use, so can be considered as official source that we can audit the shapefile with.
from datameet-pune.github.io.
Openstreetmap mapping: Rural roads in Maharashtra
https://tasks.teachosm.org/contribute?difficulty=ALL&organisation=datameet
from datameet-pune.github.io.
Finding ward number geospatially
Given a dataset of entities in Pune with lat-long locations, use QGIS or other geospatial tools to determine the ward number under which each data-point falls, and create a column in this dataset indicating ward number.
Supporting data: Pune ward maps, latest as well as previous.
Data this exercise can be done on: http://opendata.punecorporation.org/Citizen/CitizenDatasets/Index?categoryId=37
from datameet-pune.github.io.
Mapping schools of Pune
Pune Open Data Portal has published following datasets of schools:
School Enrollment statistics for 2016-17
http://opendata.punecorporation.org/Citizen/CitizenDatasets/Index?categoryId=13&dsId=400&search=school
1210 schools details here.
School Enrollment Statistics 2012-2016
http://opendata.punecorporation.org/Citizen/CitizenDatasets/Index?categoryId=13&dsId=417&search=school0
Year | Count |
---|---|
2012-13 | 1184 |
2013-14 | 1190 |
2014-15 | 1223 |
2015-16 | 1233 |
2016-17 | 1247 |
These need lat-long information.
from datameet-pune.github.io.
Related Issues (20)
- Bank accounts data from PMJDY website HOT 8
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- Extracting from PDF maps
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- Geohash idea for Bus stops (and other location redundancy) de-duplication HOT 1
- Problem statements for a hackathon HOT 15
- Calculate open location codes for tabular data
- Build a mapped data explorer for DKAN portals like Telangana Open Data Portal
- Co-ordination for Business Intelligence Hackathon, SICSR, Jan 2019 HOT 2
- Gathering tasks for SPPU Statistics dept hackathon, 9 Feb 2019 HOT 3
- sliver polygon
- Gathering tasks for COEP hackathon, 2 Feb 2019 HOT 11
- multipolygon incorrect district and other attributes
- MH Villages v2W2 shapefile District error
- project: Adding Indian place names to Spellcheck Dictionaries
- Marathi localisation for QGIS project : possibility to pull already done work from other open source projects HOT 2
- PDF data extraction related
- Project: NoSQL database HOT 2
- GSDA groundwater site HOT 2
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from datameet-pune.github.io.