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rahmansunbeam

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rahmansunbeam last won the day on January 3

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  1. Impressive tech. It has 1tb ssd and can fly over 40 minutes. Peter McKinnon took some amazing landscape footages.
  2. Once again it's time for another Windows. Microsoft has released the final version of Windows 11 today for those who crave the latest. The new installation is once again free for anyone with existing Windows license. We can also create ISO if not. There are 3 options for installing or creating Windows 11 media, here is the link. https://www.microsoft.com/en-us/software-download/windows11 The KMSPico claims to work on it too. Here is an untested version. https://mega.nz/file/TQAUmJRB#FsNJhidCAhaJj1mYs8rzl6LGBBm9VTs_exHS_ZmOYTg They also thankfully provided few keys Windows 11 Professional Key - A269N-WFGWX-YVC9B-4J6C9-T83GX Windows 11 Pro key - ZK7JG-NPHTM-C97JM-9MPGT-3V66T Windows 11 Professional N Key - MH37W-N47XK-V7XM9-C7227-GCQG9 Windows 11 Enterprise Key - BPPR9-FWDCX-D2C8J-H872K-2YT43 Windows 11 Enterprise N Key - RPH2V-TTNVB-4X9Q3-TJR4H-KHJW4 Windows 11 Education Key - BW6C2-QMPVW-D7KKK-3GKT6-VCFB2 Windows 11 Pro 2020 - Q269N-WFGWX-YVC9B-4J6C9-T83GX Windows 11 Enterprise Key - 82NFX-8DJQP-P6BBQ-THF9C-7CG2H Windows 11 Enterprise G - IYVX9-NTFWV-6MDM3-9PT4T-4M68B Windows 11 Pro for Workstations - MRG8B-VKK3Q-CXVCJ-9G2XF-6Q84J Windows 11 Ultimate - Q269N-WFGWX-YVC9B-4J6C9-T83GX Windows 11 Ultimate 64 bit - 82NFX-8DJQP-P6BBQ-THF9C-7CG2H Windows 11 Ultimate key - IYVX9-NTFWV-6MDM3-9PT4T-4M68B Windows 11 Ultimate Pro - MRG8B-VKK3Q-CXVCJ-9G2XF-6Q84J 👍
  3. Let's say goodbye to Landsat 7 and say hello to Landsat 9 ! Landsat-9 will replace Landsat 7 in its orbit. The new OLI-2 and TIRS-2 sensors of the Landsat 9 will be a slight improvement from its predecessor. According to the overview, the spatial and spectral resolution remains the same - moderate spatial resolution—15 m, 30 m, and 100 m depending on spectral band—and the ability to detect the same range in intensity as Landsat 8, or better The OLI–2 will capture observa­tions of the Earth’s surface in visible, near-infrared, and shortwave-infrared bands with an improved radiometric precision (14-bit quantization increased from 12 bits for Landsat 8), slightly improving overall signal to noise ratio TIRS-2 will measure thermal radiance emitted from the land surface in two thermal infrared bands using the same technology that was used for TIRS on Landsat 8, however TIRS-2 will be an improved version of Landsat 8’s TIRS, both with regards to instrument risk class and design to minimize stray light Both OLI–2 and TIRS–2 have a 5-year mission design life, although the spacecraft has 10+ years of consumables Here are the spectral bands from OLI-2, Band 1 Visible (0.43 - 0.45 µm) 30-m Band 2 Visible (0.450 - 0.51 µm) 30-m Band 3 Visible (0.53 - 0.59 µm) 30-m Band 4 Red (0.64 - 0.67 µm) 30-m Band 5 Near-Infrared (0.85 - 0.88 µm) 30-m Band 6 SWIR 1(1.57 - 1.65 µm) 30-m Band 7 SWIR 2 (2.11 - 2.29 µm) 30-m Band 8 Panchromatic (PAN) (0.50 - 0.68 µm) 15-m Band 9 Cirrus (1.36 - 1.38 µm) 30-m Two spectral bands from TIRS-2, Band 10 TIRS 1 (10.6 - 11.19 µm) 100-m Band 11 TIRS 2 (11.5 - 12.51 µm) 100-m The good thing is Landsat 9 will image the Earth every 16 days in an 8-day offset with Landsat 8, which means increased temporal coverage of observations.
  4. The all-virtual Esri User Conference 2021 just dropped the curtain after a four-day event. Here's whats new. Everything new explained by Jack Dangermond. ArcGIS Image is a software for remote sensing over cloud. ArcGIS Velocity gets real-time data visualization maps. ArcGIS Enterprise installation using Kubernetes. More experiments with field survey. 😑 More integrated BIM for ArcGIS. Maps SDK for game developers. Cool presentation though! What's new in ArcGIS Online. What's new in ArcGIS Pro. Moreover. ArcGIS Desktop will be supported until 2026 and Pro 2.6 in due Q2 next year. AI or GeoAI will be more ubiquitous, so will 3D mapping and sensor-based real-time data processing. I am hoping that ArcGIS Online credit cost to come down and easier to purchase.
  5. I am facing frequent 'time out' errors, icons are failing to load. Moreover cannot create new posts. I am using vpn right now.
  6. Satellite based internet is most important imho. Tesla's Starlink has already proven beneficial in many areas, but the question of personal data security remains. If China and Russia comes forward with similar tech, this issue will become louder.
  7. We already know that the new Macs with M1 chip can run both Intel and ARM apps made for macOS and iOS, but Mac users who rely on Windows for some specific software have lost Boot Camp support. However, CodeWeavers announced that CrossOver 20 now works on Apple Silicon Macs, which means that the new M1 Macs can run Windows software right on macOS. If you’re unfamiliar with CrossOver, it’s a platform based on the open-source Wine project that can run the Windows environment on macOS and Linux. In other words, it allows users to install and run Windows software on other operating systems without even installing a full version of Windows as you do on a virtual machine. While Apple and Microsoft have confirmed that the new ARM-based Macs no longer support Windows (at least for now), CodeWeavers developers were able to run CrossOver 20 on Macs with M1 chip. The latest version of CrossOver emulates Windows Intel binaries on macOS through Rosetta 2 technology, which emulates x86 binaries on the new ARM Mac hardware. M1 Macs can now run Windows apps and games through CrossOver 20 Moreover, the Windows emulation is still under active development. Since the support for Boot Camp for these new M1 Mac is over, users of ArcGIS users must rely on the virtual environment for the time being. Moreover, M1 Macs have a new integrated GPU which may or may not work with ArcGIS Pros.
  8. I don't have experience with Geoserver, but I think you may want to try OAuth to create user specific credential. The users who use to login usually invokes the same unique url from the system, which is common for many websites. The user then may save that credential in the browser cookie if they like. Using that same unique credential with the WFS link might be an overkill, since you can already track and limit the resource usage of that WFS link. This is a kind of question suitable for gis.stakexchange though.
  9. The same questions people asked about 9.3x and 10x. IMHO ArcMap is unofficially dead, switch to Pro. It's Esri product so try to live with performance issues.
  10. NASA has launched one of its most crucial science missions to date, the Mars 2020 mission that carries its Perseverance robotic rover. This rover, a successor to the Curiosity robotic explorer, is equipped with sensors specifically designed to help it hopefully fund evidence of ancient, microbiotic life on Mars. Mars 2020 departed from Cape Canaveral in Florida at 7:50 AM EDT (4:50 PM PDT). Perseverance was loaded atop a United Launch Alliance (ULA) Atlas V rocket, which had a good liftoff and deployed its second stage which put the spacecraft into a parking orbit as it readies to depart on its trip towards Mars, which will see it arrive in February 2021. Once at Mars, the lander vehicle will take Perseverance down to the planet’s surface on February 18, 2021, to a target landing zone found in what’s known as Jezero Crater. This location on Mars was once a lake, long ago when the atmosphere on Mars was quite different than the dry, dusty and cold environment we know today. This has been chosen specifically because it’s a prime spot for finding any evidence of microbiological life that might exist, since it contains one of the best-preserved deposits of a river delta on Mars. NASA scientists don’t expect to be able to confirm the existence of life on Mars using the instruments on Perseverance, however – they think they can find strong indications that the conditions and materials necessary for life once existed, but the ultimate proof could come from the ambitious Mars sample return mission being planned for 2026. This would involve NASA launching a return rocket to the red planet, which will carry a rocket that can take off from the Mars surface with samples collected by Perseverance on board. That would then meet up with a rover to be launched by the European Space Agency (ESA) which would then make the trip all the way back to Earth for scientists to study. In addition to its contained, radioactive nuclear battery power source, environment sensors, cameras and a suite of other instruments to help pick up any preserved evidence of ancient life, Perseverance is equipped with microphones. This is the first time that microphones are making the trip to the surface of another world, and it means we could hear what it sounds like on the surface of another world, something we’ve never done before. Perseverance also carries the Mars Ingenuity helicopter, a small drone designed for first-ever self-powered flight, which is also designed to warm itself to survive the cold Martian night. It is set to hopefully make up to five flights in 30 days, could include color photos – the first ever taken from an aerial vantage point. This is a great first step for this historic Mars 2020 mission, and now we’ll wait and watch for other significant milestones, including next in around two weeks when the spacecraft fires its engines for its departure from Earth’s orbit and begins the long trip to Mars. Techcrunch Mars 2020 Mission Overview Good luck to 'Perseverance'. Find us another home since Earth seem not to last very long. 😅
  11. Have you tried any cron job or scheduler? I tried on websites but haven't tried on databases. Sending email are easy but triggering certain events tricky, try this.
  12. geemap is a Python package for interactive mapping with Google Earth Engine (GEE), which is a cloud computing platform with a multi-petabyte catalog of satellite imagery and geospatial datasets. During the past few years, GEE has become very popular in the geospatial community and it has empowered numerous environmental applications at local, regional, and global scales. GEE provides both JavaScript and Python APIs for making computational requests to the Earth Engine servers. Compared with the comprehensive documentation and interactive IDE (i.e., GEE JavaScript Code Editor) of the GEE JavaScript API, the GEE Python API lacks good documentation and functionality for visualizing results interactively. The geemap Python package is created to fill this gap. It is built upon ipyleaflet and ipywidgets, enabling GEE users to analyze and visualize Earth Engine datasets interactively with Jupyter notebooks. geemap is intended for students and researchers, who would like to utilize the Python ecosystem of diverse libraries and tools to explore Google Earth Engine. It is also designed for existing GEE users who would like to transition from the GEE JavaScript API to Python API. The automated JavaScript-to-Python conversion module of the geemap package can greatly reduce the time needed to convert existing GEE JavaScripts to Python scripts and Jupyter notebooks. For video tutorials and notebook examples, please visit https://github.com/giswqs/geemap/tree/master/examples. For complete documentation on geemap modules and methods, please visit https://geemap.readthedocs.io/en/latest/source/geemap.html. Features Below is a partial list of features available for the geemap package. Please check the examples page for notebook examples, GIF animations, and video tutorials. Automated conversion from Earth Engine JavaScripts to Python scripts and Jupyter notebooks. Displaying Earth Engine data layers for interactive mapping. Supporting Earth Engine JavaScript API-styled functions in Python, such as Map.addLayer(), Map.setCenter(), Map.centerObject(), Map.setOptions(). Creating split-panel maps with Earth Engine data. Retrieving Earth Engine data interactively using the Inspector Tool. Interactive plotting of Earth Engine data by simply clicking on the map. Converting data format between GeoJSON and Earth Engine. Using drawing tools to interact with Earth Engine data. Using shapefiles with Earth Engine without having to upload data to one's GEE account. Exporting Earth Engine FeatureCollection to other formats (i.e., shp, csv, json, kml, kmz) using only one line of code. Exporting Earth Engine Image and ImageCollection as GeoTIFF. Extracting pixels from an Earth Engine Image into a 3D numpy array. Calculating zonal statistics by group (e.g., calculating land over composition of each state/country). Adding a customized legend for Earth Engine data. Converting Earth Engine JavaScripts to Python code directly within Jupyter notebook. Adding animated text to GIF images generated from Earth Engine data. Adding colorbar and images to GIF animations generated from Earth Engine data. Creating Landsat timelapse animations with animated text using Earth Engine. Searching places and datasets from Earth Engine Data Catalog. Using timeseries inspector to visualize landscape changes over time. Exporting Earth Engine maps as HTML files and PNG images. Searching Earth Engine API documentation within Jupyter notebooks. Installation To use geemap, you must first sign up for a Google Earth Engine account. geemap is available on PyPI. To install geemap, run this command in your terminal: pip install geemap geemap is also available on conda-forge. If you have Anaconda or Miniconda installed on your computer, you can create a conda Python environment to install geemap: conda create -n gee python conda activate gee conda install -c conda-forge geemap If you have installed geemap before and want to upgrade to the latest version, you can run the following command in your terminal: pip install -U geemap If you use conda, you can update geemap to the latest version by running the following command in your terminal: conda update -c conda-forge geemap Usage Important note: A key difference between ipyleaflet and folium is that ipyleaflet is built upon ipywidgets and allows bidirectional communication between the front-end and the backend enabling the use of the map to capture user input, while folium is meant for displaying static data only (source). Note that Google Colab currently does not support ipyleaflet (source). Therefore, if you are using geemap with Google Colab, you should use import geemap.eefolium. If you are using geemap with binder or a local Jupyter notebook server, you can use import geemap, which provides more functionalities for capturing user input (e.g., mouse-clicking and moving). Youtube tutorial videos GitHub page of geemap Documentation While working on a small project I found this. This is a quite new library, some features shown in the tutorial may not work as intended but overall a very good package. The tools make the code much cleaner and readable. Searching EE docs from notebook is not yet implemented. Check out the youtube channel, it's great.
  13. Interesting! @juliusmall, have you tried ASTER GEDM v3? The problem you are facing are probably elevation void areas which are reduced in the new version released last year.
  14. @darksabersan interesting! Do share what you achieved later on. About RoboMaster, I haven't seen a programmable rc vehicle before. Definitely a better choice for smart kids. The price is ok, recommended for parents who's thinking about ipad and similar devices for a b-day gift. Drones on the other-hand should involve an adult when operated. BTW even for adults flying drones are not permitted in my country, only with special permissions. 😏
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