sir , can i make 1mX1m grid on surface like this? and how to detect that points on actual surface ,like by using some sensors or something, please give me answer ,thank you
I am interested with the analysis of population access to healthcare (health coverage analysis) in QGIS. I was wondering, using the Burundi example, can you show how you will determine population access to health care (assuming you have geo-location of all health facilities) - travel time to health facilities or proportion of population within health facility catchment area, if possible taking into consideration geographical barriers such as water bodies, type of roads, mountain, and/or seasonality (rain vs dry season).
Hi Ian a few years ago I was working on a project to do with heritage assessments of golf courses in the north of Sydney (Australia) so the gold course thing is very familiar. There were 42 in all. I found the existing courses has quite a lot of information about their facilities and layout. Nothing much through on older courses such as Mosman where the course was removed in WWII except for the club house. - cheers Iain
In QGIS in the Layers Panel. Right click on the layer you want to set the scale visibility for and select Set Layer Scale Visibility. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-It1plF24gH0.html
It doesn't work for me, I have QGIS 3.18, I also had 3.14, I briefly installed several and it didn't work on any of them, the program says the following: "Any 3D objects not rendered? There is a compatibility issue with QGIS 3D view. You need to restart QGIS to us preview", I don't actually have this device turned on. I tried unchecking 3D from the control panel, but I didn't actually find the feature there. Please tell me which version you are using and how you get there, I can't find any solution on the internet (for example on stackoverflow and github they just don't have answers).
Hello. I liked your approach with simply renaming the world file for the various historical images and tried to use it for investigating the change of the shoreline position over a period of years. However, the Google Earth historical images may be shifted by several meters - I can see that by comparing the location of some fixed points (buildings, coastal structures, crossroads, etc.) - and therefore the wold files will differ. Is there a way to overcome this issue?
Instead of using the Google Earth placemarks as control points you can use physical features common to both your images. Things like fence corner posts, road intersection, small distinct rock outcrops. Anything that is likely to remain in the same place over time and show up in both sets of imagery. Note that tall features like buildings are not recommended as ground control points (GCP's) due to parallax. Parallax occurs due to the change in viewing angles between different satellite positions. So what you might try is georeference your first image as demonstrated in the video. Then use GCP's from this georeferenced image to georeference subsequent imagery.
Is there a way to "burn in" the lines etc into the dem for 3d printing inclusive of things like property lines? thanks for any help you can give, I'm stuck on this
Just wanted to say that your videos have been really helpful in my learning QGIS. In fact, yours have been the most clear and concise I've found on YT. The number of views you're getting is almost criminal for the quality you put out.
when I choose "change data soure" for my mbtiles file I don't find the Geopackage connection in the "select data source" popup. Strange enough in the browser panel under Geopackage the data source link shows up.. but when I click on the "fields" under the correct data source, a message appears "data was not fount in schema"...
I also recommend the ImportPhotos plugin, it's simple and allows you to click and view the photos on the map ImportPhotos Import Photos This tool can be used to import Geo-Tagged photos (jpg or jpeg) as points to QGIS. The user is able to select a folder with photos and only the geo-tagged photos will be taken. Then a layer will be created which it will contain the name of the picture, its directory, the date and time taken, altitude, longitude, latitude, azimuth, north, camera maker and model, title, user comment and relative path. The plug-in doesn’t need any third party applications to work. It has two buttons; the one is to import geotagged photos, and the other one is to be able to click on a point and display the photo along with information regarding the date time and altitude. The user can create one of the following file types: GeoJSON, SHP, GPKG, CSV, KML, TAB. When the user saves a project and wants to reopen it, the folder with the pictures should stay at the original file location or moved at the same location of the project (e.g. *.qgz) in order to be able to view the pictures. Mac users please refer to the Read Me file for further guidance. The new version of Import photos gives the ability to the user to use several basic filters on the image and save the picture. To use additional filters, the user needs to use the python package opencv-python.
