Hi, I did suggest it indeed. Ideally, it would go in the QGIS core every time they ask for a z factor. (Like under shading in the layer style). I will probably play around with it just to learn who to make a plugin but if you want to put it in your plugin, go ahead.
Nicolas Cadieux https://gitlab.com/njacadieux > Le 27 nov. 2020 à 08:43, C Hamilton <adenacult...@gmail.com> a écrit : > > > I have a Lat Lon Tools plugin, Field Calculator function that generates the > UTM zone. > > Nicolas, you just reminded me that you had suggested this to me earlier as a > plugin. Something like that would be easy to add, but I'm not sure it fits > within Lat Lon Tools which captures different coordinates, but z-factor is > related to the latitude so perhaps it fits. > > Does anyone think it would be worth adding to Lat Lon Tools or should it be a > separate plugin? > > Calvin > >> On Fri, Nov 27, 2020 at 4:52 AM Raymond Nijssen <r.nijs...@terglobo.nl> >> wrote: >> Hi Nicolas, >> >> It is just a simple formula for calculating the "z-factor" for a given >> latitude. What would that look like in a plugin? Where would it go? What >> would it do or show? >> >> Last week I had a similar idea for a plugin that could tell you which >> UTM zone to pick for your current canvas. I decided it would not be >> worth the effort. But maybe these could go together (and be finished at >> the end of this "KwakFriday"? >> >> Regards, >> Raymond >> >> >> On 27-11-2020 06:13, Nicolas Cadieux wrote: >> > Hi, >> > >> > It's just the Z factor needed when you make a hillshade when the x an y >> > are in degrees and the z is in feet or meters (like SRTM). You can see >> > it if you choose Hillshade under symbology / render type (for a raster >> > layer). It's basically the length of a degree in meters for latitude. >> > >> > https://www.esri.com/arcgis-blog/products/product/imagery/setting-the-z-factor-parameter-correctly/ >> > >> > >> > >> > Nicolas >> > >> > On 2020-11-27 12:08 a.m., Richard Duivenvoorde wrote: >> >> On 11/27/20 5:28 AM, Nicolas Cadieux wrote: >> >>> I want to learn to make a QGIS plugin and I was wondering if anybody >> >>> new if there is a QGIS plugin or tool that calculates the z factor >> >>> for a particular latitude? I thought this would be an easy project to >> >>> start with but I don't want to duplicate someone else's work. >> >> Hi Nicolas, >> >> >> >> What do you mean with "calculates the z factor for a particular >> >> latitude"? >> >> >> >> - z-factor as in x,y,z? >> >> - Do you mean based on a crs/datum? So more proj-based? >> >> - Or do you mean based on a known dataset with not enough z-info? So >> >> more extra/intrapolation? >> >> - Raster? Vector? >> >> - Creating a new dataset (processing)? Or just reporting for one lat >> >> (desktop/gui)? >> >> >> >> Just trying to get an idea of your idea :-) >> >> >> >> Regards, >> >> >> >> Richard Duivenvoorde >> >> >> >> >> >> >> _______________________________________________ >> 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