Re: [Qgis-developer] Lidar data into QGIS (Another topic: Mosaicking Aerial Photos from UAV (Drone), Georef PLY binary tins, SfM output into QGIS)
Hi Roberto, I think we have to separate these topics: - support for georef PLY binary tins, that begins to be the standard output from SfM Structure from Motion drone aerial video and photo low cost surveys. - SfM output into QGIS Structure from Motion - A Visual Approach http://ccwu.me/vsfm/ Tim has also this example in Mosaicking Aerial Photos with GDAL Image Mosaicking with GDAL http://linfiniti.com/2009/09/image-mosaicking-with-gdal/ It might be good to have QGIS plugin for Mosaicking Aerial Photos from UAV. Open source UAV (ArduPilotMega (APM2.x), Mission Planner and APM Planner 2.0) are gaining traction in UAV Technology and Aerial Photo Mapping. We are using APM2.x UAV for forestry plantation aerial photos. APM 2.x UAVs are discussed in this site. http://diydrones.com/ Thanks. Regards, Noli On 1/31/14, Geodrinx geodr...@gmail.com wrote: Larry, it's a mid-term goal to make LAS data available in QGIS. and I also would insert the support for georef PLY binary tins, that begins to be the standard output from SfM Structure from Motion drone aerial video and photo low cost surveys. Roberto ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] point displacement style
Hi to all, I'm using the point diplacement style. I noticed that it doesn't use the new label engine for labelling the diplaced simbol, so the collision engine doesnt' work. There's in plain to migrate it to the new label engine? It could be useful if I open a ticket ? I also have some visualization problem, because at some scale the point displaced symbols disappear (tested on qgis 2.10 Master - Ubuntu 13.04-64bit). Anyone can confirm this problem ? Thanks in advance Luca ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Lidar data into QGIS
Hi, 2014/1/31 A Huarte ahuart...@yahoo.es: Although I know you're going to try it in Vienna, I would like to recover the idea of creating a new type of layer (eg QgsPointCloudLayer) that I usually also tend towards just doing - but this time, with LIDAR it's probably a good advice to think and discuss first It's really a tricky thing. See e.g. Paul Ramsey's Talk at FOSS4G 2013, Birmingham: http://elogeo.nottingham.ac.uk/xmlui/bitstream/handle/url/186/pgpointcloud-foss4-2013.pdf 2014/1/29 Howard Butler wrote: I think the first question to answer for a QGIS point cloud capability is to define what it will do. Is it a renderer/viewer? Product processing pipeline? Everything? I think it is important to keep the scope limited for the first few attempts to feel out the problem. Exactly. --Stefan P.S. BTW there is another battle field over at the format definition side which currently needs some attention: LIDAR Format Wars... http://boundlessgeo.com/2014/01/lidar-format-wars-2/ 2014/1/31 A Huarte ahuart...@yahoo.es: Although I know you're going to try it in Vienna, I would like to recover the idea of creating a new type of layer (eg QgsPointCloudLayer) that inherits from QgsVectorLayer to provide all the basic vector functionality (including a new simplification of proximity to fast rendering), and add extra capabilities for these data types: output rasters, 3D profiles, 3D visualization in plugins ... Best Regards Alvaro De: Paolo Cavallini cavall...@faunalia.it Para: Larry Shaffer lar...@dakotacarto.com CC: qgis-developer qgis-developer@lists.osgeo.org Enviado: Viernes 31 de enero de 2014 7:53 Asunto: Re: [Qgis-developer] Lidar data into QGIS Il 30/01/2014 18:41, Larry Shaffer ha scritto: To revisit your original immediate need, does the output from Howard's Hexer tool visualize what you are looking for? https://github.com/hobu/hexer Hi Larry, we do not have immediate needs, it's a mid-term goal to make LAS data available in QGIS. Thanks anyway for the suggestion, interesting; probably it would be good to check if there is something we can integrate or reuse. All the best. -- Paolo Cavallini - www.faunalia.eu QGIS PostGIS courses: http://www.faunalia.eu/training.html ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] point displacement style
Hi Luca, I can't help with the labeling. At the time the point displacement renderer was developed (about 5 years ago), the labeling engine wasn't as advanced as it is today. So it wasn't an option and also not necessary to the project. I would not regard this as a bug request, but as a feature request and I guess it would a substantial bit of work to integrate the new labeling engine with the point displacement renderer. Do you have an idea how it should behave? I guess, depending on how many points there are there isn't a solution to perfectly label all points. - The point displacement renderer could also be improved to display points in a cluster, not just around the circle, but also inside the circle. This would be more complex to implement, but it would save map/screen space and would visually more pleasing. If you have funds available - please consider hiring a developer. - Regarding the second issue: this may be a bug. Or in extreme cases - if you have many points at a single location - the circle could be so big that it is rendered outside of the visible rendered map area. I am also a user of the point-displacement renderer - so I would like to see improvments in this feature! Thank you for bringing this up. Andreas Am 31.01.2014 09:14, schrieb Luca Lanteri: Hi to all, I'm using the point diplacement style. I noticed that it doesn't use the new label engine for labelling the diplaced simbol, so the collision engine doesnt' work. There's in plain to migrate it to the new label engine? It could be useful if I open a ticket ? I also have some visualization problem, because at some scale the point displaced symbols disappear (tested on qgis 2.10 Master - Ubuntu 13.04-64bit). Anyone can confirm this problem ? Thanks in advance Luca ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Lidar data into QGIS
Hello Alvaro, I just writed a program that displays in real time LiDAR point cloud data. That program, named LaserDrink reads quickly TerraSolid Laser BIN format ( the father of LAS ... ) and writes a temporary WRL file that the Coin3D viewer, then, displays. My temp WRL contains the point cloud class, or the RGB photo color, or the color by height. Also, the point aspect can be set, and it is possible to display them greater or smaller, to realize a 3D photo like visualization. OK, this was LaserDrink.BTW, with it, I could insert TODAY the support in QGis of LiDAR poin cloud real time display. Someone is interested ? :) Ciao Roberto 2014-01-31 A Huarte ahuart...@yahoo.es: Although I know you're going to try it in Vienna, I would like to recover the idea of creating a new type of layer (eg QgsPointCloudLayer) that inherits from QgsVectorLayer to provide all the basic vector functionality (including a new simplification of proximity to fast rendering), and add extra capabilities for these data types: output rasters, 3D profiles, 3D visualization in plugins ... Best Regards Alvaro -- *De:* Paolo Cavallini cavall...@faunalia.it *Para:* Larry Shaffer lar...@dakotacarto.com *CC:* qgis-developer qgis-developer@lists.osgeo.org *Enviado:* Viernes 31 de enero de 2014 7:53 *Asunto:* Re: [Qgis-developer] Lidar data into QGIS Il 30/01/2014 18:41, Larry Shaffer ha scritto: To revisit your original immediate need, does the output from Howard's Hexer tool visualize what you are looking for? https://github.com/hobu/hexer Hi Larry, we do not have immediate needs, it's a mid-term goal to make LAS data available in QGIS. Thanks anyway for the suggestion, interesting; probably it would be good to check if there is something we can integrate or reuse. All the best. -- Paolo Cavallini - www.faunalia.eu QGIS PostGIS courses: http://www.faunalia.eu/training.html ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] point displacement style
Hi Andreas, thanks for your prompt reply ! I start to use this useful function for a project ant it resolve to me a lot of problem. 2014-01-31 Andreas Neumann a.neum...@carto.net: Hi Luca, I can't help with the labeling. At the time the point displacement renderer was developed (about 5 years ago), the labeling engine wasn't as advanced as it is today. So it wasn't an option and also not necessary to the project. I would not regard this as a bug request, but as a feature request and I guess it would a substantial bit of work to integrate the new labeling engine with the point displacement renderer. Ok, I thought that it was due to this problem. I can open a request feature ticket, just to keep track of it. Do you have an idea how it should behave? I guess, depending on how many points there are there isn't a solution to perfectly label all points. I have at least 4-5 point in the circle. My points stay in a layer, geographically linked with another point layer (all point have the same coord) that contain only 1 point. I have 2 kind of problem: - the first one is when I have just 1 point in the first layer, so the point is not drawn in a circle and the two layer are overlapping. On kind solution is to allow to displace point in a circle also when there is just one point in a place. - the second one is when I have more than 1 point and the label of the displaced point overlapping with the second layer label. - The point displacement renderer could also be improved to display points in a cluster, not just around the circle, but also inside the circle. This would be more complex to implement, but it would save map/screen space and would visually more pleasing. If you have funds available - please consider hiring a developer. I can try to put this requests in my next commitment to qgis developers. - Regarding the second issue: this may be a bug. Or in extreme cases - if you have many points at a single location - the circle could be so big that it is rendered outside of the visible rendered map area. I am also a user of the point-displacement renderer - so I would like to see improvments in this feature! I noticed this bug also with 2 point and a small circle. I can investigate deeper and try it also with 2.0 qgis version. Thank you for bringing this up. Thanks to you Andreas Luca ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Lidar data into QGIS
very interesting!, but as Stefan says, first devs+users must define to do De: Geo DrinX geodr...@gmail.com Para: A Huarte ahuart...@yahoo.es CC: Larry Shaffer lar...@dakotacarto.com; qgis-developer qgis-developer@lists.osgeo.org Enviado: Viernes 31 de enero de 2014 10:08 Asunto: Re: [Qgis-developer] Lidar data into QGIS Hello Alvaro, I just writed a program that displays in real time LiDAR point cloud data. That program, named LaserDrink reads quickly TerraSolid Laser BIN format ( the father of LAS ... ) and writes a temporary WRL file that the Coin3D viewer, then, displays. My temp WRL contains the point cloud class, or the RGB photo color, or the color by height. Also, the point aspect can be set, and it is possible to display them greater or smaller, to realize a 3D photo like visualization. OK, this was LaserDrink. BTW, with it, I could insert TODAY the support in QGis of LiDAR poin cloud real time display. Someone is interested ? :) Ciao Roberto 2014-01-31 A Huarte ahuart...@yahoo.es: Although I know you're going to try it in Vienna, I would like to recover the idea of creating a new type of layer (eg QgsPointCloudLayer) that inherits from QgsVectorLayer to provide all the basic vector functionality (including a new simplification of proximity to fast rendering), and add extra capabilities for these data types: output rasters, 3D profiles, 3D visualization in plugins ... Best Regards Alvaro De: Paolo Cavallini cavall...@faunalia.it Para: Larry Shaffer lar...@dakotacarto.com CC: qgis-developer qgis-developer@lists.osgeo.org Enviado: Viernes 31 de enero de 2014 7:53 Asunto: Re: [Qgis-developer] Lidar data into QGIS Il 30/01/2014 18:41, Larry Shaffer ha scritto: To revisit your original immediate need, does the output from Howard's Hexer tool visualize what you are looking for? https://github.com/hobu/hexer Hi Larry, we do not have immediate needs, it's a mid-term goal to make LAS data available in QGIS. Thanks anyway for the suggestion, interesting; probably it would be good to check if there is something we can integrate or reuse. All the best. -- Paolo Cavallini - www.faunalia.eu QGIS PostGIS courses: http://www.faunalia.eu/training.html ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Labeling toolbar activating signals?
Thanks Denis, this is close but not totally related. I finally managed to activate the buttons but this is like vaudou magic to me: I create a memory layer, and triggers actionToggleEditing once, and then a second time but only after having refreshed the canvas.. : self.iface.setActiveLayer(labelMapLayer ) labelLayer.startEditing() self.iface.actionToggleEditing().trigger() # connects label layer attributes values changed to labelLayerModified function labelLayer.attributeValueChanged.connect(self.labelLayerModified) #redraws registry and mapcanvas. if hasattr(labelMapLayer, setCacheImage ): labelMapLayer.setCacheImage(None ) labelMapLayer.triggerRepaint() self.iface.legendInterface().refreshLayerSymbology( labelMapLayer ) self.iface.actionToggleEditing().trigger() -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Labeling-toolbar-activating-signals-tp5100666p5101140.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] EditCommand (UndoAction) mandatory?
Hi, Yesterday I added some signals to QgsVectorLayer which are emitted in calls to beginEditCommand, endEditCommand and destroyEditCommand. This makes it possible for consumers of edit signals (attributeValueChanged etc.) to wait for a batch operation to finish and update once at the end. Example: In the case of the attribute table and an update to all columns from the field calculator it results in an enormous speed boost, if it is updated only once at the end of an operation and not for every single feature. What I am doing now is to cache the bounds (min/max column/row) of changed attributes and when the next endEditCommand is made update everything within. Now the question is: Can I rely on endEditCommand being called for every operation? Or do I have to check for out-of-edit-command changes and update immediately in this case? Regards, Matthias ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] scale bar in print composer template problem
Hi Jorge, I'm on a debian 7.3 with QGIS 2.1 master Cheers Matteo 2014-01-30 Jorge Tornero jtorlis...@gmail.com: Hello Matteo, Which version of QGIS are you working with? Best regards, Jorge Tornero 2014-01-30 Matteo Ghetta matteo.ghe...@gmail.com: Hi all, I'm creating a print template and I noticed that the bar scale doesn't update when loading layer with different extent. So scale bar results extremely huge or small depending on the new layer uploaded in the print composer. Any hint? Cheers Matteo ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Enable snapping on intersections
Hi all. What is the actual meaning and use of the above mentioned snapping option? I tried, but cannot see any change enabling it. Thanks. -- Paolo Cavallini - www.faunalia.eu QGIS PostGIS courses: http://www.faunalia.eu/training.html ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] [postgis-users] QGis 2.0 Copy/Paste from shapefile to Postgis issue if the primary key is a string
Hi, QGIS prevent to overwrite the primary key field when it copies/pastes, this is why it leaves the field empty. One way would be to add the constraint after the copy/paste if it's for a single shot. Otherwise, just add a unique constraint on f1 and add a serial as primary key. Cheers, Denis On 31. 01. 14 15:02, F T wrote: Hello We have a pb with copy/paste from a shapefile to postgis if the primary key is a string. The primary key is left NULL and no commit is possible. To reproduce the pb : Create *table1 *with a string primary key CREATE TABLE table1 ( f1 character varying(10) NOT NULL, f2 character varying(10), geom geometry, *CONSTRAINT t1_pkey PRIMARY KEY (f1),* CONSTRAINT enforce_dims_geom CHECK (st_ndims(geom) = 2), CONSTRAINT enforce_geotype_geom CHECK (geometrytype(geom) = 'POINT'::text), CONSTRAINT enforce_srid_geom CHECK (st_srid(geom) = 2154) ) *table2* is the same as table 1 but it has no primary key CREATE TABLE table2 ( f1 character varying(10) NOT NULL, f2 character varying(10), geom geometry, CONSTRAINT enforce_dims_geom CHECK (st_ndims(geom) = 2), CONSTRAINT enforce_geotype_geom CHECK (geometrytype(geom) = 'POINT'::text), CONSTRAINT enforce_srid_geom CHECK (st_srid(geom) = 2154) ) *shapes.shp* is a shapefile that contains the points I would like to copy/paste in the Postgis tables (see attached zip file) 1) if I copy/paste the points from shapes.shp to table1, the key field stays NULL and the commit is impossible. 2) if I copy/paste the points from shapes.shp to table2, everything is ok. Have you ever seen this bug? Thanks Fabrice ___ postgis-users mailing list postgis-us...@lists.osgeo.org http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Enable snapping on intersections
Snap to intersection makes you snap to just that intersection point. Did a test with two polygon layers and a point layer. Adding a point to the point layer, while within the snap tolerance, made the point appear right on the intersection between the two polygon layers. Removing the 'Enable snapping on intersection' made the point not snap to the intersection. I have set snapping settings to both polygon layers, prehaps you missed that in the snap options. - Jakob Lanstorp -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Enable-snapping-on-intersections-tp5101200p5101219.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Enable snapping on intersections
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Il 31/01/2014 15:46, Jakob Lanstorp ha scritto: Snap to intersection makes you snap to just that intersection point. Did a test with two polygon layers and a point layer. Adding a point to the point layer, while within the snap tolerance, made the point appear right on the intersection between the two polygon layers. Removing the 'Enable snapping on intersection' made the point not snap to the intersection. I have set snapping settings to both polygon layers, prehaps you missed that in the snap options. Hi Jakob, I tried as you described, in various combinations, but could not see a difference between activating and deactivating the option. All the best, and thanks. - -- Paolo Cavallini - www.faunalia.eu Corsi QGIS e PostGIS: http://www.faunalia.eu/training.html -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlLrzhEACgkQ/NedwLUzIr7IvACguomLoiYG/ZVTZqkgjZ3vYFWp rdQAn3CN9twILYCuLwo/FJjloZ0IkTDt =ILCh -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] EasyCustomLabeling ported to QGIS 2.0
Hi there, I ported EasyCustomLabeling to new API so that it should be very few clicks to make such maps in a few clicks: http://osgeo-org.1560.x6.nabble.com/file/n5101254/EasyCustomLabelin0.5.png https://www.dropbox.com/s/6ru3javeedl3urg/EasyCustomLabelin0.5.png https://www.dropbox.com/s/6ru3javeedl3urg/EasyCustomLabelin0.5.png I would be pleased to get some feedback on it, from either users or dev's. *Still here are some issues and one blocker I encountered:* - Memory Layer Saver plugin can save the labeling layers BUT* can't restore correctly unpinned labels* (free labels). It seems related to NULL - None - PyQtNullVariant stuff. If someone has an idea, the plugin could then be totally usefull. see http://hub.qgis.org/issues/9148. Help ! - Signals attributeValueChanged seem sends floats values in string type when manual editions are done in attribute table. Need a ticket? - There is no attributeValueChanged signal emitted when using field calculator.. So some Callouts won't be updated if user choose to edit a bunch of labels (to get them aligned for instance). Cheers! Régis -- View this message in context: http://osgeo-org.1560.x6.nabble.com/EasyCustomLabeling-ported-to-QGIS-2-0-tp5101254.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
