wow.. that was very nice to share...dear Arun....its worthy..
*----* *Mr. Karunakaran Akhil Dev, M.Sc., M.Phil.* *Consultant (Intern) * * Kerala State Planning Board (KSPB)* *Government of Kerala* *Pattom,Thiruvananthapuram* *----* *PhD Research Scholar * *Disaster Management * *School of Environmental Sciences* *Mahatma Gandhi University, Kottayam-686560* *My Phone:+91 9847231604* On Sat, Dec 23, 2017 at 7:05 PM, Arun Ganesh <arungra...@gmail.com> wrote: > Found a couple of wonderful old maps of Bangalore from the British Library > while trying to understand the history of my area: > > - 1800 http://mapwarper.net/maps/26791#Preview_tab > - 1935 http://mapwarper.net/maps/26792#Preview_tab > > The 1935 map is especially detailed and shows all the old tanks and > waterways that the city has now lost. Also of interest is the location of > all the original settlements and how areas like Indiranagar and Koramangala > used to be 80 years ago. > > > > On Fri, Dec 15, 2017 at 9:14 AM, Nikhil VJ <nikhil...@gmail.com> wrote: > >> Ok here's the page that will help you map any two geo-referenced rasters >> side by side and fade them over satellite view etc: >> >> https://answerquest.github.io/overlap-custom-side.html >> >> Screenshot: >> >> <https://i.imgur.com/9ccbMSG.png> >> >> >> By the way, in case you have done the geo-referencing on QGIS / ArcGIS >> and have a big GeoTIFF sitting on your laptop and don't know how to put it >> on the web, >> 1. Login to Mapbox Studio >> 2. Upload the GeoTIFF file as a dataset. Note the id. >> 3. Note your mapbox accesstoken. >> 4. Construct the tile URL as follows: >> "https://a.tiles.mapbox.com/v4/"; + mapboxID + >> "/{z}/{x}/{y}.png?access_token=" + accesstoken >> 5. Paste in the Left or Right textbox in the above page. >> >> PS: If you liked it then click the appreciation link.. >> >> -Nikhil >> Pune >> >> On Tuesday, December 12, 2017 at 4:58:27 PM UTC+5:30, Arun Ganesh wrote: >>> >>> > So, whatever maps I upload on mapwarper, I should update the Google >>> docs for corresponding Planning District/Page No reference to the mapwarper >>> link. Right ? >>> >>> Yes >>> >>> >>> > Also would like to know the plan forward to integrate the planning >>> district wise maps onto a single platform. >>> >>> For a start we may want to expand Nikhil's map >>> https://answerquest.github.io/bangalore-landuse-existingVproposed.html with >>> the more detailed maps when zoomed in. This would require some tweaking of >>> the code to get right, maybe someone experienced with JS can help? >>> >>> The folks at opencity.in have a vision to create a ward level >>> information explorer for all our cities, so that could be the final place. >>> The have scraped quite a bit of data and making it available here: >>> http://opencity.in/content_type/map >>> >>> An additional data layer is the plot level property tax detail which >>> indicates wether a plot is paying commercial or residential tax: >>> http://bbmp.gov.in/geptis/web/gis/home >>> >>> > After rectification, is vectorization also in Plan? >>> >>> Not at this time. Digitizing these maps would be a fairly large project >>> on its own. >>> >>> > For each quadrant, any verified GCPs are available or we choose it >>> from topoheet? >>> >>> There are no verified gcp's, you can get a fairly good result by picking >>> easily identifiable spots from the maps like a major junction. A visual >>> guide for rectification has been documented: http://opencity.in >>> /explainer/georeferencing-image-maps-on-to-a-gis-map >>> >>> -- >> Datameet is a community of Data Science enthusiasts in India. Know more >> about us by visiting http://datameet.org >> --- >> You received this message because you are subscribed to the Google Groups >> "datameet" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to datameet+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > Datameet is a community of Data Science enthusiasts in India. Know more > about us by visiting http://datameet.org > --- > You received this message because you are subscribed to the Google Groups > "datameet" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to datameet+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- Datameet is a community of Data Science enthusiasts in India. Know more about us by visiting http://datameet.org --- You received this message because you are subscribed to the Google Groups "datameet" group. To unsubscribe from this group and stop receiving emails from it, send an email to datameet+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
