Re: [Qgis-user] Advance Digitising Tools- compass bearings
On 2024-05-17 07:00, C Hamilton via QGIS-User wrote: Phil, The Shape Tools plugin has an "Azimuth distance digitizer" and for what you are talking about an "Azimuth distance sequence digitizer". With the latter function you click on a starting location and then give a list of azimuth, distance sequences. I have used this for old surveys like this. There is also an declination offset just in case your surveys were using magnetic north and not true north. In that case you have to look up what the A related question, what about grid to ground conversions and vice-versa, are there plugins which support this? Surveys here in Canada always specify a "combined scale factor", which is tedious to apply manually to each vertex when digitizing. declination offset was for your 1880s date. Regards, Calvin On Thu, May 16, 2024 at 9:50 PM Philip Ryan via QGIS-User wrote: Hello, I am trying to digitise a series of old gold lease "portion plans" produced in the 1880s in Australia by a mining surveyor using a compass and chain. The data for each gold lease includes a table of 1) compass bearings in degrees and 2) distance measurements in links (0.2 m) for each vertex of the lease polygon (mostly a rectangle or trapezoid but sometimes more complex). The Advance Digitizing Tools would seem to be ideal for this data except for the angle measure (a) which I can't input as a compass bearing (0-360 deg). The current settings with 90 deg E as the zero makes conversion of compass bearings very tedious. Is it possible to change the angle variable (a) to a compass bearing? Regards, Phil Ryan ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info:https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-user___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] web based spatial MIS/Dashboard
On 2024-04-22 06:33, Janneke van Dijk via QGIS-User wrote: Dear QGIS developers and users, In my work as a freelance GIS consultant I work with QGIS as much as possible and try to convince clients that it will address all their GIS needs despite not having to pay a license fee for it (and no, it is not user unfriendly). More and more, in addition to wanting 'a GIS system', there are requests for a web based management information system which shows both maps and a dashboard with selected KPIs, and where selecting a feature on the map will update the graphs and charts in the dashboard. So far, I have not been able to find out if this is possible using Open Source software, what it would require in terms of setting it up/configuring/additional development. I assume it is technically possible to develop it. Does anyone have experience with this? How did you set it up? Any examples I could have a look at? I guess strictly speaking it is not a QGIS question, but seeing that some other proprietary GIS software vendors are offering web dashboard functionality 'out of the box' it does get associated with the GIS software procured. I work for an environmental consulting company, and we have done a proof of concept using OpenLayers + Geoserver.org + PostGIS. Some Javascript coding is required. Our initial goal is to replace Google Earth Pro KMZ file with our project sites, with a more automated means of updating it where our GIS technicians can easily add a polygon representing the job site directly from QGIS. The performance is good compared to Google Earth Pro (fast load, and smooth scrolling). It is queued up as a project to implement and deploy company wide. Is there a demand for it (from my limited view - yes)? Are there thoughts about developing such functionality more 'out of the box' within the QGIS community? What would such development require? My impression is that there is more (very tentative) willingness from donors to consider contributing to Open Source software development as part of development projects, but it may mean that it would need to be written into tender proposals with indicative figures for the required funding. I have a limited understanding of what is out there (I've just dabbled (so far unsuccesfully) with chartbrew and grafana the past few days to see how dashboard creation works) so I am not sure what are the right questions to ask. I realise my questions are still rather broad. I have some time at hand so I would be available to do more research and become more specific if there is an interest in this topic. Looking forward to your ideas! Janneke ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Portable GIS
You should look at QFIELD. On 2023-10-12 08:40, Michael Jabot via QGIS-User wrote: I am trying to create a Portable QGIS to test before an international project I have followed the ideas from (https://www.sigterritoires.fr/index.php/en/portable-version-of-qgis-3-32-0/) but am not having luck with QGIS running from the USB I had used Portable GIS from OSGeo in the past but the link I had is no longer working Thank you for any ideas/suggestions that anyone has Mike * Michael Jabot, Ph.D. SUNY Distinguished Professor, Science Education US Partner - NASA GLOBE Program NASA Earth Ambassador Director, Institute for Research in Science Teaching Chancellor's Award Recipient for Excellence in Research The State University of New York at Fredonia 716.320-0189 (Google Voice) ja...@fredonia.edu E250 Thompson Hall 280 Central Avenue Fredonia, NY 14063 * ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info:https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-user___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] azimuth offset 0.32 added to all drawn segments in Azimuth and Distance plugin
On 2023-09-26 14:31, qgis-user-requ...@lists.osgeo.org wrote: Hi Jeremy, it looks like the issue is due to the fact that, while the "Azimuth and Distance" plugin always uses the planimetric azimuth/bearing and the planimetric distance (i.e. calculated on the Cartesian plane of the Project CRS), the Measure Bearing tool returns the bearing angle measured on the ellipsoid set for the current Project (in Project->Properties...->Measurements->Ellipsoid), instead. If you set the Project ellipsoid to "None / Planimetric", than the Measure Bearing tool will return the planimetric bearing angle (i.e. measured on the Cartesian plane of the Project CRS). You can also use the "Azimuth Measurement Map Tool" plugin which allow to switch between Cartesian and ellipsoidal measurement directly in the tool window. Best regards. Andrea --- I wonder if it is safe to use a custom ellipsoid, which matches your local site altitude ? Would this give me "ground" distances and bearings? I am also interested in contributing to the Azimuth and Distance plugin, to use a Combined Scale Factor, so that ground distances may be entered directly from a legal survey. The same goes for bearings, if a meridian convergence factor could be set, to allow bearings to be entered directly from a survey. The existing Magnetic North facility seems to be useful for rotating the surveys using astronometric bearings, to GNSS true north, so this would be an additional feature. ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] azimuth offset 0.32 added to all drawn segments in Azimuth and Distance plugin
Hi, When working with git master branch, or 3.32.2, QGIS Azimuth and Distance plugin seems to add a constant offset to the azimuths entered. I am working with projected CRS EPSG:22717 NAD83(CSRS) epoch 2010 for both project and point layer. I add to Active layer, using Survey type Boundary, Angle type azimuth or bearing, Distance unit Default, Angle unit Degree, North type Default. I choose a point on the map, and create a segment 100m Azimuth 0, then Draw. If i use the measure bearing tool, i get around 0.32 degrees, and it seems to vary slightly each time i draw from a different starting point, but if I delete the drawn, point and snap to the same starting point, i get the same offset. I've opened an issue here: https://github.com/mpetroff/qgsazimuth/issues/32 I took a brief look at the code and I don't see anything adding an offset that shouldn't, but I'm new to GIS so maybe there's something about using a projected CRS that I'm missing. It seems to me if I draw something with a certain bearing, the Measure Bearing tool should give me back the same thing. ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
