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NextGIS
เข้าร่วมเมื่อ 23 ส.ค. 2013
Welcome!
We develop geographic information systems. This channel showcases features of the NextGIS platform.
NextGIS is a suite of programs and services, each made for its own tasks. You can get all of our software with a single subscription.
Our main product is the GIS server NextGIS Web, which is available in the cloud or on premise. NextGIS Web is used to store and publish geodata, manage access, create maps and much more.
Get our Premium subscription to get a complete ready-to-go GIS tools, the link is in the channel header.
We develop geographic information systems. This channel showcases features of the NextGIS platform.
NextGIS is a suite of programs and services, each made for its own tasks. You can get all of our software with a single subscription.
Our main product is the GIS server NextGIS Web, which is available in the cloud or on premise. NextGIS Web is used to store and publish geodata, manage access, create maps and much more.
Get our Premium subscription to get a complete ready-to-go GIS tools, the link is in the channel header.
Map Style Gallery – A collection of ready-to-use beautiful styles
Get inspired by our gallery of cartographic styles and explore them through interactive maps powered by NextGIS: nextgis.com/map-styles/?
Sign-up for NextGIS Platform for interactive maps, data collection and more!
my.nextgis.com/signup/?
We offer free onboarding to help you get started:
my.nextgis.com/consultation?
Sign-up for NextGIS Platform for interactive maps, data collection and more!
my.nextgis.com/signup/?
We offer free onboarding to help you get started:
my.nextgis.com/consultation?
มุมมอง: 48
วีดีโอ
Wurman Dots - Visualizing Object Density
มุมมอง 53หลายเดือนก่อน
A New QGIS Plugin by NextGIS. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS Web Updates (December 2024, Eurasia and Africa)
มุมมอง 56หลายเดือนก่อน
NGW 4.9.0. Updates: nextgis.com/blog/ngw-4_9_0/ NextGIS Web: nextgis.com/nextgis-web/ NextGIS Web SaaS: nextgis.com/nextgis-com/ NextGIS Events: events.nextgis.com
NextGIS Toolbox - Raster Classification
มุมมอง 814 หลายเดือนก่อน
Performs automatic classification of an image (e.g. satellite image) based on a vector layer with training polygons. Random Forest algorithm is used. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS OSMInfo - Adding OSM features to a Web Map in just a few clicks
มุมมอง 1934 หลายเดือนก่อน
Add a layer from Web GIS to QGIS via Connect. Use OSMInfo to directly add OSM features to the Web GIS layer. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS Toolbox - Photos with EXIF to Web GIS layer
มุมมอง 604 หลายเดือนก่อน
Converts a set of georeferenced photos with EXIF tags into Web GIS vector layer. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS Web - How to manage Fonts for Web Map
มุมมอง 595 หลายเดือนก่อน
NestGIS Web allows to upload custom fonts in addition to system ones. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS Toolbox - Raster Clustering
มุมมอง 805 หลายเดือนก่อน
Performs automatic clustering of an image into a specified number of classes. K-Means algorithm is used. Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
MOLUSCE 4 - LULC change detection and prediction with free QGIS tool. Land Use Change Simulations
มุมมอง 7K5 หลายเดือนก่อน
MOLUSCE is a quick and convenient tool to analyse land cover changes in QGIS. With version 4.0 it's now available in the latest QGIS versions, together with a lot of improvements. In this video we covered full MOLUSCE workflow: data preparation, modeling and validation. MOLUSCE page: nextgis.com/molusce/ Quick start (English): github.com/nextgis/qgis_molusce/blob/master/src/molusce/doc/en/Quick...
NextGIS Web Updates, Webinar 13.08.2024 (Eurasia and Africa)
มุมมอง 755 หลายเดือนก่อน
NGW 4.8.0. Updates: nextgis.com/blog/ngw-4_8_0/ NextGIS Web: nextgis.com/nextgis-web/ NextGIS Web SaaS: nextgis.com/nextgis-com/ NextGIS Events: nextgis.com/events
NextGIS Web - Favorites
มุมมอง 466 หลายเดือนก่อน
Add maps and data to Favorites in just two clicks! Sign-up for NextGIS Platform for interactive maps, data collection and more! my.nextgis.com/signup/? We offer free onboarding to help you get started: my.nextgis.com/consultation?
NextGIS Connect 2.0. Desktop to Cloud: using QGIS to manage your geodata online. Webinar
มุมมอง 3326 หลายเดือนก่อน
NextGIS Connect 2.0. Desktop to Cloud: using QGIS to manage your geodata online. Webinar
Digitizr - Buffer visible while digitizing
มุมมอง 707 หลายเดือนก่อน
Digitizr - Buffer visible while digitizing
Expanded Web GIS Data Management Capabilities with NextGIS Connect 2.0
มุมมอง 1957 หลายเดือนก่อน
Expanded Web GIS Data Management Capabilities with NextGIS Connect 2.0
NextGIS Toolbox - Web Map into QGIS project
มุมมอง 2468 หลายเดือนก่อน
NextGIS Toolbox - Web Map into QGIS project
NextGIS Toolbox - Clearing layer contents
มุมมอง 808 หลายเดือนก่อน
NextGIS Toolbox - Clearing layer contents
Digitizr (Update) - Digitize a line and have a buffer around it immediately
มุมมอง 1088 หลายเดือนก่อน
Digitizr (Update) - Digitize a line and have a buffer around it immediately
NextGIS Toolbox - Address parser from CSV
มุมมอง 468 หลายเดือนก่อน
NextGIS Toolbox - Address parser from CSV
NextGIS OGRStyle for QGIS - OGR Style in a click
มุมมอง 1348 หลายเดือนก่อน
NextGIS OGRStyle for QGIS - OGR Style in a click
NextGIS Web - Panoramas on your Web Maps
มุมมอง 10910 หลายเดือนก่อน
NextGIS Web - Panoramas on your Web Maps
NextGIS Connect - Manage multiple styles of a layer
มุมมอง 14010 หลายเดือนก่อน
NextGIS Connect - Manage multiple styles of a layer
NextGIS Toolbox - Vector files from Web GIS to GeoPackage
มุมมอง 8011 หลายเดือนก่อน
NextGIS Toolbox - Vector files from Web GIS to GeoPackage
NextGIS Mobile - Searching within the attribute table data
มุมมอง 3911 หลายเดือนก่อน
NextGIS Mobile - Searching within the attribute table data
NextGIS Toolbox - GIS Tools in Your Web Browser
มุมมอง 13811 หลายเดือนก่อน
NextGIS Toolbox - GIS Tools in Your Web Browser
NextGIS Web - Connect lookup table to a layer
มุมมอง 117ปีที่แล้ว
NextGIS Web - Connect lookup table to a layer
NextGIS Web - Filter layer features on the Web Map by area
มุมมอง 82ปีที่แล้ว
NextGIS Web - Filter layer features on the Web Map by area
OSMInfo - New ways to save data from OpenStreetMap
มุมมอง 329ปีที่แล้ว
OSMInfo - New ways to save data from OpenStreetMap
NextGIS - The platform for your Web Maps
มุมมอง 993ปีที่แล้ว
NextGIS - The platform for your Web Maps
hi, i wanna ask, in the evaluating correlation step, why do we need to exclude the spatial variable that has high correlation (> 0.7) from the driving factors?
Hello! High correlation means that these two factors are very similar. Including them together doesn’t add value and may unnecessarily complicate the model.
Hello! At the "Create Web GIS connection" setting tab, I only get the "As guest" and not the "User login with password". How can I authenticate with user? Thanks
Hello! Click the plus sign to the right of the "As guest" field. A credential input field will open, followed by a new window: 1. Enter any connection name you like. 2. Below, you can enter the Web GIS URL if desired. 3. Stay "Basic authentication" selected. 4. Then, enter your username and password.
UPD: Now you can update NextGIS Connect to version 2.6.0 and there will be a clearer authentication window.
Thank you so much for update and tutorial ❤
Hello. Where can I find the internal working machanism if the MOLUSCE plugin? Is there any Report or manual?
Hello! Thank you for this question! 1. Code is opened and you can freely explore it: github.com/nextgis/qgis_molusce/tree/master/src/molusce 2. There is a built-in PDF documentation: github.com/nextgis/qgis_molusce/blob/master/src/molusce/doc/en/QuickHelp.pdf Take a look at chapter 3 with technical and algorithm details
Why no information on the attribute table
Merci pour vos enseignes
why we need to transform the DEM?
Hello. In this particular case by two reasons: 1. Transforming DEM to metric coordinate reference system is crucial for calculating derivatives like slope angle 2. All input datasets should have the same extent, pixel size and coordinate reference system as input Land Use/Land Cover rasters, so we should transform everything to their spatial domain
Why does molusce give me "nan" value in the evaluation correlation, do you know anything about that?
Hard to say without data samples. You can send us some to support@nextgis.com and we'll try to figure out
Thank you so much...I was struggle with the matching of the geometry but after watching your videos I solved it.....really appreciate it...
great, brah
Hello, thanks for the video. I am new to MOLUSCE and I am strugling a bit to understand the bottom table in the Area Changes results. For instance, what does it mean the almot 59% in the Barren to Barren transition? Thanks a lot!
Hello! It means that 59% of Barren pixels remained the same class (Barren). And 41% of them were transited to "Natural Herbaceous".
@@nextgis_channel Thanks very much for your answer 🙂
hello,I found the current validation kappa in my result was low (about 30), what should I do? Which part of my model has a problem?😭
Hi, usually it means that your hypothesis about influecing environmental factors is wrong, or model parameters are wrong, or both. First step is to play a lot with model parameters, if metrics dont grow, then you should reconsider spatial variables
Does this not support other map projections?
Hello, I'm in Nigeria. I've been unable to make payment for the geodata I ordered using my debit cards. Please can you tell me what to do.
Hello! Write to the chat, please: t.me/nextgis_talks
Sir.... Which version of qgis you used for molusce support
hi, is there any alternative if I dont have any applied style in my folder? how can I still colored it?
Is it free
There is a free plan, as well as paid ones: nextgis.com/pricing-base/
Yes
Thank you for sharing. I'd like to ask, after I used the molusce plugin in QGIS for simulation, the overall accuracy is below 0.6, and the historical accuracy is 0.8. What could be the reason for this?
@user-md3tg8pe5h 0 seconds ago when i add slope map as a spatial variable to predict LULC by Weight of evidence i face a problem that the Rand min and Range max for the slope raster appers as (nan) how can i fix this problem, please?
If "range min" and "range max" values are invalid, it seems to be a problem with your input rasters and their metadata, so plugin is unable to take correct min/max values from it
what about Weight of evidence method, could you teach us about it, please?
It's very simple and doesn't have many things to be tuned. You should only set up the process of converting continuous data to discrete, selecting number of intervals for each factor.
Thank you so much guysss for update it. Really thanks from my heart....... ❤❤❤❤
Hi there, I noticed that your predicted results for 2022 and 2027 are pretty similar at first glance despite the rigorous process. Almost unable to discern any changes from the full view between the 2 iterations. What do you think is the reason?
Hello! Actually hundreds of pixels were changed, so model was able to catch something. But in general hypothesis in this demo case was very weak, so I wouldn't count on results as something real. If we would take a look at transition potential maps for each pair of classes, we would notice that there many potential changes, but model wa not confident enough most of them, so it prefered to leave state unchanged.
What year should the predictor maps (road network, water bodies,etc.) be? And what is the resolution of your input data?
Hello! In current implementation of MOLUSCE predictor maps are static for the whole period, including forecast. It is one of current limitations. Usually it's better to use predictors data relevant for the latest known LULC date. Resolution of data could be different, depending on your study scale. In this video we used MODIS MCD12Q1 data with ~500 meters/pixel spatial resolution.
Thank you sir for providing us Molusce 4 that works in QGIS 3.x, I'm glad to hear that. I'll try.
Finallyy!!
Very good! Brazil
What is the main difference between this version and the previous version?
@@akwijayanto Hi! First of all, the plugin was transited from the QGIS 2 engine to the QGIS 3 engine. It is a huge thing, a lot of internal mechanisms are changed. It also means that we are able to support Molusce again, which was nearly impossible before the update (too much outdated code was inside). Besides that: - Improved styles support. Now Molusce works with paletted/unique values render type, which is the actual standard for land cover rasters. In the previous version you had to use singleband pseudocolor, and in many cases (gaps in class numbers etc.) it wasn't convenient. - calculation efficiency of ANN method has been improved significantly, and stop button now works well (which is very important for fast experiments with training the model under different parameters) - some bugs and UI fixes
Can it be installed in QGIS 3.2 version?
@@tahmidanam6391 hello, minimal QGIS version is 3.22
Было бы неплохо сказать, что для этого нужен платный модуль, иначе WMS просто не будет работать
Can't see what is done on that video. Quality is not very good
Hmm, set the quality to 1080, make the video full screen
Thank you so much for making this plugin. It works with QGIS 3.32.3 and it solved my problem.
Glad it worked for you!
How to do it? Do we need api-key of our dataset?
Hello! To upload via the Connect module, you'll only need your data and/or a configured project in QGIS. Please ask any API-related questions in this chat: t.me/nextgis_talks
how did you get the satellite data?
Satellite data, specifically cloud-free Sentinel 2 mosaics, can be obtained through the NextGIS Data service: data.nextgis.com/
Does this method just create a layer from a google spreadsheet? When adding new records to Google Spreadsheet, these new records are not synchronized with WebGIS?
Indeed, this tool generates a layer using the data from the table. It is important to note that each row should contain coordinates. In case you make any modifications to the table, in order for the new objects to appear on the map, you will need to utilize the tool again and choose the appropriate mode: "ADD" or "REPLACE".
Any idea what the file size would be doing this for the entire US? It would be really nice to have topographic maps of the country and be able to overlay your gps position over it.
it will depend on zoom scales needed
In QGIS 2XX it used to have this function, but also by clicking and selecting 2 layers and clipping the difference between them on the go, without the need to create a new layer/file, where's this function?
Wow!! Want views? Check promo sm!!
Только не совсем понятно, от куда взялась ссылка на svg-маркер.
годится любая прямая публичная ссылка на любой опубликованный файл SVG
Is there a way to clip an OSM to the boundary of a .shp file? Trying to clip the boundary of a country with the OSM in the background. Thanks!
th-cam.com/video/JKMJ7DBZ-vs/w-d-xo.html
Очень интересная функция. Хотелось бы увидеть, как выглядит результат такого заказа.
Нет проблем, вот тут есть примеры data.nextgis.com/ru/about/#pdf
Спасибо! Очень полезный и удобный модуль 🤗