Qgis Layer Creation Failed

Quantum GIS requires that the table either has a column of type int4 with a unique constraint on it (which includes the primary key), has a PostgreSQL oid column or has a ctid column with a 16bit block number. If it was not, an invalid layer instance is returned. {"type": "Feature", "geometry": {"type": "Point", "coordinates": [125. 6, PlugInCadastre 1. # That string can be converted into a QGIS object (a # QgsVectorLayer in this case) using the # processing. The insertion point for new layers can be changed - within the QGIS application the insertion point is updated whenever the current selection in the layer tree view changes. code-block:: python. One solution to solve the problem is to point the failed path to an existing directory or to simply create an empty "msys" directory where the path points. You go to Layer > Create new Layer > Temporary Scratch Layer. This will mark an important milestone in QGIS development. Creating new vector layers ¶ QGIS allows you to create new Shapefile layers, new SpatiaLite layers, new GPX layers and new Temporary Scratch layers. Adding a base layer though QGIS rather than via the plugin might solve your issue. The purpose of this tutorial is to provide guidance on how to create polygons using the QGIS software. Groups can be added using the addGroup() or insertGroup() calls of the QgsLayerTreeGroup class:. This code adds a point to the polygon layer at 0. Learn for free Geographic Information System. In the File format section, select Custom delimiters and check Tab. In the tutorial we used world continents shapefile. Hal Hart 666 views. lib file of DRC Project and techfile project. Hi, I’m sharing back with community here (I encourage you to do the same as you come across your own useful Power BI tips and recipes) In this post, I will share how to create a custom map file to use in Power BI. Why? Because anyone can. Usage : first, select a point layer in the legend, then click the action, then click somewhere on the map canvas to create a time map. This page introduces how to merge several tiles into one, which is then easier to stylize, and to treat (shaded relief). When I use v. Splitting vector and raster files in QGIS programmatically On the context of the game I'm developing I have to load gigantic. After running the tool, you should get a new layer, somewhere out of view. Step by step instructions for creating a polygon feature in Quantum GIS. I'm having problems creating new shapefiles - in QGIS 2. On this tutorial, we are going to learn how to create a new shapefile layer on QGIS. Quantum GIS requires that the table either has a column of type int4 with a unique constraint on it (which includes the primary key), has a PostgreSQL oid column or has a ctid column with a 16bit block number. I actually came across this one yesterday. Started a new project - imported shapefiles and everything looks good. Upon killing QGIS, the data was again captured > correctly into the table. II Reunión Nacional de Usuarios QGIS México 2019, 21-23 Noviembre 2019 Guadalajara (México) Asiste, Comparte, aprende y convive con la comunidad QGIS México en las distintas actividades como: Ponencias Magistrales, Conferencias, mesas de trabajo, Talleres y carteles/ mapas. By default the provider uses the type of the first geometry in the file. Try some basic code. In ArcGIS this table can be linked to the raster layers, a features which is not (yet) implemented in QGIS. 18 Las Palmas, a new feature has been introduced that natively allows to add tilemap layers. You can drag the layers up and down in the Layer window to change the order in which they will be visible on your viewing window. Layer>Create layer>New Shapefile layer. GeoPackage is an OGC standard data package that can store different kinds of spatial data types such as points, polyline, and polygon. )" boundary file attached I have re-installed QGIS 1. To zoom in on the new layer, right click it in the table of contents, and select "Zoom to Layer Extent". It is really a very simple addon, but at least for me it makes it just a bit easier to work with GRASS GIS categorical raster layers in QGIS and to share subsets of raster layers. QGIS 3 Girona is the most recent version of this powerful free software, with notable improvements in the administration, visualization, and consultation of files. En utilisant le SIG, j'ouvre shapefile et j'ai essayé de « enregistrer sous » GPX mais il donne une erreur OGR: creation of field ObjectId failed (OGR error:. Take some time to visualize the raster by coloring and adjusting values in symbology until you are comfortable with the look. Explore our content, tutorials, videos, courses, manuals, ArcGIS, ArcGIS Pro, QGIS, gvSIG and. Add Road network polygon and Building to QGIS. Which will get you a new raster layer with consecutive category values, but the same colours and category labels. Creation of a new GRASS layer is supported within the GRASS plugin. Conmutar edicin Despus de activar el modo de una capa, encontrar el icono Aadir objeto espacial en el men Edicin dependiendo del tipo de capa (punto, lnea o polgono). AAS has committed to providing 9,000 EUR (~$11,000 US) each of three years, beginning in November 2012. The tutorial is concise and clearly written, making it easy to follow the various steps. 6 will be released any day now. 0 et Gdal 1. When saving, choose Add New Layer so the layer is added to the existing GeoPackage. Hey GRASS/QGIS folks. I'm just starting to use qgis and needed a simple way to integrate the Google terrain feature. Hey guys, i am doing my GIS assignment. You can do selection by two ways. These polygons are one of the input files required for running SpeciesGeoCoder, and they must represent the user-defined operational areas used for biogeographical analyses. getObjectFromUri() method. It's truly in memory. Please remember: If you are interested in a particular advert or item please contact the advertiser, not CJS, and remember to tell them you saw their advert in CJS Professional. The index layer must be a feature layer. Your solution is the perfect way. > > I used SVG icons for the 24hr data, but found this generated much slower > refreshes, as I assume the symbol for each point had to be. What follows will serve as a step-by-step quick-start guide for creating a QGIS map of the ancient Mediterranean using the open-access shapefiles found at the Ancient World Mapping Center (AWMC). The following is a multi-step process into how I create a shapefile in QGIS to recreate the map above in Tableau. Hi, I have a database with a point layer used as reference for a sampling scheme. 5) to replace v2. Optionnally, adding a message filter will only redraw the layer for some specific events. Rummaging in the Toolbox: Introducing the Legend Manager. This article contains step by step instructions for geocoding addresses using QGIS. core import QgsApplication “Failed to open the layer” GLFW is just context creation and input handling, youll have to load textures yourself or. The problem is that this operation is executed in memory (because I need to consolidate/merge data) and the process fails with large files. Sampling raster values at point locations in QGIS On February 15, 2010 July 1, 2014 By pvanb In Data handling , GIS , GIS software , QGIS Recently I received an excel file with the coordinates of 144 vegetation sample plots, with the request to get the altitude values for the plots. Select your project and dataset to create a QGIS vector layer. I'm the only person with access and I do so with admin permissions. You can get this using the context menu (right click mouse on the layer) or the menu ‘Layer | Save as. This code adds a point to the polygon layer at 0. In layman’s terms, a string can be any recorded characters but it’s most commonly used to store words and information. one of QGIS new cool features. Once you have established a particular data connection, then any layers available through that connection are integrated into the ArcCatalog window, or the "Add Data" window in ArcGIS. Today, I am going to start with a simple QGIS Tutorial to create new shapefile layer on QGIS. means that this layer would NOT be labeled if a layer named “orthoquads” is on. Created in the following ways: Create from Content > My Content > Create. QgsVectorLayer(). These plugins can also be installed directly from the QGIS Plugin Manager within the QGIS application. You will be prompted to confirm the Coordinate Reference System for the layer. QGIS SentinelHub plugin from Sinergise is a fantastic tool which allows us to connect to Sentinel data server, visualize, analyze and even download satellite images, all of these using only our Desktop QGIS graphic interface. This is easy done using the field calculator in QGIS, after which you can use the column to create the legend. You will see the layer loaded in the QGIS canvas. Find out more about our featured charity here. The command line is a text interface for your computer. This section of the free chapter preview of Mastering QGIS covers loading different data types into QGIS desktop. x versions you can create a Shapefile layer by combining the Ctrl+Shift+N keys, in QGIS 3 version the same sequence allows you to create a Geopackage. Me gustaría convertir. Hello, welcome to QGIS Tutorial. js map using QGIS with no HTML/JavaScript/CSS programming. Easy tip - Speed up your Layer Control work by turning redraws off and on. The following are code examples for showing how to use qgis. I am able to directly create 'block_geom' table with geometry nicely using ogr2ogr , make indexes, and everything works well in QGIS. QGIS 2: Importing OSM vector layers. First, I loaded the csv data into Tableau and mapped the countries as points on a map. core import QgsApplication “Failed to open the layer” GLFW is just context creation and input handling, youll have to load textures yourself or. GeoPackage is an OGC standard data package that can store different kinds of spatial data types such as points, polyline, and polygon. Creating a new ShapeFile Layer fails in QGIS 3. QGIS SentinelHub plugin from Sinergise is a fantastic tool which allows us to connect to Sentinel data server, visualize, analyze and even download satellite images, all of these using only our Desktop QGIS graphic interface. For this tutorial, we will use the file named 10n060e_20101117_gmted_mea300. code-block:: python. edu is a platform for academics to share research papers. From there you can collect data. In this example we deal with ArcGIS and QGIS. To test this new functionality, we must load some layers in QGIS. Welcome to the Python GDAL/OGR Cookbook!¶ This cookbook has simple code snippets on how to use the Python GDAL/OGR API. I double-checked the path to shapefile and found it to be correct. 0) Add a delimited text. Open the GeoServer Web Admin page and click Layer Groups in the left-hand menu. However, upon closer inspection there are a lot of very useful changes. Now I tried to integrate the opentopomap. Browse to the downloaded ne_10m_airports. Problem: CLick "Create New Shapefile Layer" and I get the pulldown menu (file name, geomeotry type, etc. Scroll down on the vertical menu on the left till you see Files or Storage and click it. Main Menu >> Plugins >> Python Console; 3. Creation of a new GRASS layer is supported within the GRASS plugin. lib file of DRC Project and techfile project. QField lets you create a map in QGIS and upload that map to your mobile device. GeoServer participates in the annual Free and Open Source Software for Geospatial conference, join us in Bucharest for FOSS4G 2019!. It is important to check whether the layer has been loaded successfully. Mastering QGIS is designed to bring users who want to go beyond the basics of QGIS to an advanced level of QGIS expertise. I also sorted the layers in descending order since there are less of the higher category storms. From the command line, you can navigate through files and folders on your computer, just as you would with Windows Explorer on Windows or. In this example we deal with ArcGIS and QGIS. It also permits editing and upload back the OSM server. After a few failed attempts, I decided to use QGIS to create this map. QGIS does not make it possible to include a simple label that will change with each month. COLLADA is an XML-based schema that enables you to transfer data among 3D digital content creation tools, such as SketchUp, Maya, 3ds Max, and Rhino. The continued creation of translation software, along with additional API services, may offer numerous solutions where the lack of standardized data formats remains a barrier to transit agency archived transit data usage. This includes visualizing GRASS raster and vector layers, digitizing vector layers, editing vector attributes, creating new vector layers and analysing GRASS 2-D and 3-D data with more than 400 GRASS modules. 4 with simple GRASS vector layers. After you load some data, launch the plugin by going to Vector ‣ Save Attributes ‣ Save Attributes as CSV. These plugins can also be installed directly from the QGIS Plugin Manager within the QGIS application. You need to know about pyramid layers. The exported. The project Layers appear to be about 40-50% loaded before the message pops up. It appears that recent updates to Windows (KB4041681, KB4041676) are generating a conflict that leads to the following error: Failed to connect to database. There are many different files generated from different algorithms. )" boundary file attached I have re-installed QGIS 1. COLLADA is an XML-based schema that enables you to transfer data among 3D digital content creation tools, such as SketchUp, Maya, 3ds Max, and Rhino. Running echo %PATH% gives me the following:. QGIS is an open-access. Open the GeoServer Web Admin page and click Layer Groups in the left-hand menu. QgsComposerVectorLegendBase Box Vierkant Font Lettertype Map Kaart Preview Voorvertoning Title Titel Vector Legend Options Vectorlegenda opties Layers Lagen Group Groepeer ID ID QgsComposerView Quantum GIS Quantum GIS Move item content Onderdeelinhoud verschuiven Remove item group Verwijder onderdeelgroep Item deleted Onderdeel verwijderd Zoom. shp: Permission denied. I’ve encountered a thousand different problems with data importing and flat files over the last 20 years. QGIS will accept this pathes as well and will not change this when re-opening the project. Input options: Any georeferenced image file or WMS layer containing features you would like to trace. OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. Groups can be added using the addGroup() or insertGroup() calls of the QgsLayerTreeGroup class:. It also introduces how to create shaded relief through Gdaldem hillshade or the QGis Shaded relief plugin, and the associated GIMP whitening to improve this relief. shp for shapefile datastore. The new layer can then be loaded into QGIS using the delimited text plugin (see User Manual). They can be useful for creating small graphics that would not be needed at any time other than the project you are working in. We'll use the neighborhoods layer, the city boundaries layer, and the roads layer that you have already published and styled in your geog585 workspace. Strengths: Offers a wide range of input and output image formats. Including how to join and donate. Please remember: If you are interested in a particular advert or item please contact the advertiser, not CJS, and remember to tell them you saw their advert in CJS Professional. Creating Shapefiles - Drawing lines, points or polygons (vectors) in ArcGIS. To add a xyz tile is the same with adding a WMS layer, we need a layer address (url) but with different parameters. e the Shapefile which can be merged with each other should have an identical shape, i. 6 Contents: core. Download with Google Download with Facebook or download with email. I am using Qgis 2. This is a safeguard to avoid accidentally editing a layer if there is a slip of the mouse. When you select the "layer stack" tool a separate small window will open. Projects are now expandable items, and expanding them shows the full project structure of groups and layers. Input options: Any georeferenced image file or WMS layer containing features you would like to trace. Encountering a crash when requesting QGIS 2. This section of the free chapter preview of Mastering QGIS covers loading different data types into QGIS desktop. qgis - create layer - can't see the lat lon. 20 any new fields I create and any associated data are not saved. This article contains step by step instructions for geocoding addresses using QGIS. Hal Hart 666 views. date, id number etc). Michal ZimmermannPieces of knowledge from the world of GIS. Browse to the downloaded ne_10m_airports. 温馨提示:如果无法跳转至Chrome网上应用商店下载插件,建议您直接复制网址到百度翻译输入框中进行网页翻译。. Setting up R in QGIS. This OGC® Encoding Standard defines GeoPackages for exchange and GeoPackage SQLite Extensions for direct use of vector geospatial features and / or tile matrix sets of earth images and raster maps at various scales. We'll use the neighborhoods layer, the city boundaries layer, and the roads layer that you have already published and styled in your geog585 workspace. 04 avec QGis 2. So if you want to edit your layer, you first have to save as shapefile or import to a databank. Click on Layers ‣ Add Delimited Text Layer. 1) from the Build Service on openSuSE 11. Select and calculate area, length and perimeters of features. You can zoom/pan around just like any other layer. GeoServer is developed, tested, and supported as community-driven project by a diverse group of individuals and organizations around the world. It provides tools for creation from scratch for GeoPackage, Shapefile, SpatiaLite, GPX format and Temporary Scratch layers (aka memory layers). Select your project and dataset to create a QGIS vector layer. XYZ has gone with the model of having maps, layers and datasets which feels a little inherited from GIS. The steps outlined in this GIS video tutorial are: First, choose how you want to select features from your dataset from the menu:. It assumes viewer has already watched the point and line feature tutorials at the 'GIS & GPS Tips and Techniques. The signals are connected to layer refresh when you switch on this rendering option. When trying to save a vector layer (shape) as dxf, I get the following error: Error: creation of data source failed (OGR error:Failed to find template header file header. If you call it on a vector layer, QGIS will be required to setup an new connection to the data store (the layer provider), create some query to return data, and parse each result as it is returned from the provider. The continued creation of translation software, along with additional API services, may offer numerous solutions where the lack of standardized data formats remains a barrier to transit agency archived transit data usage. We were unable to log you in/sign you up. I used the Layer field we created in QGIS to bring in some custom shapes. QGIS plugins add additional functionality to the QGIS application. On this tutorial, we are going to learn how to create a new shapefile layer on QGIS. Hey GRASS/QGIS folks. You will be prompted to confirm the Coordinate Reference System for the layer. Directly drag and drop layers and layer groups from ArcMap to QGIS to add them to the current QGIS project (maintaining their ArcGIS symbology and layer settings!)* Directly drag and drop layers from ArcCatalog to QGIS windows to open in QGIS* Support for ESRI MapServer layers (*requires QGIS 3. QGIS Basics #2: Create Polygon Layer and Add Polygons - Duration: 6:31. It adds support for OpenStreetMap raw vector data, bringing it in as a layer either from. Also, I cannot seem to create new vector files from joins using "Save selection as" Has anyone found a solution to these problems?. The best I could do was this: I finally "Read the Manual" and found that the label toolbar is Attribute based. I am using Qgis 2. Creation of a new GRASS layer is supported within the GRASS plugin. Another great example is tools just failing, but when running the exact same tool on the exact same layer in Arcmap it works perfectly. Using Historic Maps with QGIS. com to discuss licensing arrangements for your organisation! Alternatively, send us an email if you’d like to. Term Description; Analysis: An analysis from the point of view of using InaSAFE is the process whereby a hazard layer, an exposure layer and an optional aggregation layer are used to determine the potential impact of the hazard data on the exposure. Which will get you a new raster layer with consecutive category values, but the same colours and category labels. osm XML file or by direct download from the OpenStreetMap API. When the layer is removed from the project, it gets deleted, too. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. Of course as I normally do I got a bit adventurous and did a few different things to build pyramid layers. Je voudrais convertir. adf using the normal 'open raster layer' dialogue (make sure you select 'All other files' in the file type selector box). transform Performs an affine transformation on a vector layer. I'm looking at extracting the colour & layer info from the QGIS project file to build a script using GMT to plot a publication quality map, with legend and annotated box. One solution to solve the problem is to point the failed path to an existing directory or to simply create an empty "msys" directory where the path points. After you load some data, launch the plugin by going to Vector ‣ Save Attributes ‣ Save Attributes as CSV. QGIS will accept this pathes as well and will not change this when re-opening the project. Mastering QGIS is designed to bring users who want to go beyond the basics of QGIS to an advanced level of QGIS expertise. Let's take a look at how GeoServer allows you to group multiple layers together in a single WMS. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. In this tutorial I will show you how to create a Hillshaded topographic map in QGIS. Future opportunities include adding GTFS feeds from the local ferry traffic in the New York Region. It's truly in memory. 4 will become the first long-term release for the 3. When saving, choose Add New Layer so the layer is added to the existing GeoPackage. 04 avec QGis 2. In general QGIS is going to be faster, more powerful and more efficient to work with. Writing tests Each of the AttributeTransfer plugin tests inherits from unittest. I double-checked the path to shapefile and found it to be correct. OGR to the rescue again!. The continued creation of translation software, along with additional API services, may offer numerous solutions where the lack of standardized data formats remains a barrier to transit agency archived transit data usage. In the File format section, select Custom delimiters and check Tab. Now symbolize the points. After a few failed attempts, I decided to use QGIS to create this map. It provides tools for creation from scratch for GeoPackage, Shapefile, SpatiaLite, GPX format and Temporary Scratch layers (aka memory layers). Maybe the QGIS layer name would be better?. You can use a free, non-commercial ArcGIS public account or an ArcGIS subscription account. After a bit of a chat, he agreed to update the QLR for the QGIS Nightly Build (2. In Topology Rule Settings window, select Road for the first layer, then select rule must not overlap with and select Building for the second layer. dxf for reading, is GDAL_DATA set properly?). Why? Because anyone can. 6 Contents: core. As mentioned in previous part of the series, the QGIS Python console is an entry point to GIS workflow automation within QGIS. However, upon closer inspection there are a lot of very useful changes. Create an awesome 3D map in minutes in #QGIS July 23, 2014 July 23, 2014 / dragons8mycat Until recently, 3D has been a bit of a gimmick to the everyday GIS user, by this I mean that it has been quite time consuming to create a GOOD 3D representation (easily) until now. It’s a program that takes in commands, which it passes on to the computer’s operating system to run. Most raster data providers may keep metadata in the filename itself, like path, row and a timestamp. 20 any new fields I create and any associated data are not saved. org and support the Open GIS movement. 0 comes with a new logo! Overall the look of QGIS is very similar. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. Your Layer. That is fine when you are learning or want to quickly create maps. Scroll down on the vertical menu on the left till you see Files or Storage and click it. Creating Shapefiles Page 1 of 7 Creating Shapefiles in QGIS This guide explains how to digitise an area by creating a polygon shapefile layer, and then how to calculate area and perimeter of that shapefile. Let's add remaining user interface elements. shp layer and click OK. We are proud to be a recognized Open Source Geospatial Foundation project. The new layer can then be loaded into QGIS using the delimited text plugin (see User Manual). Creating a new ShapeFile Layer fails in QGIS 3. core import * qgs = QgsApplication([], True) qgs. Freegistutorial. We are on the eve of another QGIS release. Tools like QGIS afford us new vistas onto historical data. tif files and parse them to hexagons. QGIS 3 Girona is the most recent version of this powerful free software, with notable improvements in the administration, visualization, and consultation of files. create shape files in QGIS This is a complete shapefiles (polygon, line, multipoint, point) practical of the basics in QGIS. PyQGIS developer cookbook Release 2. So if you want to edit your layer, you first have to save as shapefile or import to a databank. Learn for free Geographic Information System. Lately many users report errors when trying to import an Excel XLS table into ArcGIS. 0, but there I get a message saying layer creation failed. 18 Las Palmas, a new feature has been introduced that natively allows to add tilemap layers. The policies were designed to ensure that maps created in QGIS' print layout designer would meet a set of minimum standards, e. Let's say that we want to create a layer of churches for the city Merida in Mexico. QGIS for Beginners - Create a New Shapefile Layer on QGIS. and the creation of the line is done programmatically in the layer style. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. For interacting with the QGIS environment, we must use the iface variable. It appears that recent updates to Windows (KB4041681, KB4041676) are generating a conflict that leads to the following error: Failed to connect to database. It is important to check whether the layer has been loaded successfully. To zoom in on the new layer, right click it in the table of contents, and select "Zoom to Layer Extent". Also see HCI (human-computer interaction). , the pseudocolor Color map. Use geomType to override this type. date, id number etc). Step by step instructions for creating a polygon feature in Quantum GIS. An enterprise with a large number of QGIS installs was looking for a way to control the outputs which staff were creating from the software, and enforce a set of predefined policies. The policies were designed to ensure that maps created in QGIS' print layout designer would meet a set of minimum standards, e. I am able to directly create 'block_geom' table with geometry nicely using ogr2ogr , make indexes, and everything works well in QGIS. These are my notes on installing QGIS Server following the instructions on the wiki. 18 QGIS Project. QGIS Basics #2: Create Polygon Layer and Add Polygons - Duration: 6:31. Running QGIS desktop as root via the terminal does allow me to open files!. It's a whole new dimension to content creation that'll help you create your home, contact, about us or any other page where a linear layout won’t convey your message. I'm writing a stand-alone app using Python and QGIS 2. com QGIS is a great GIS application which supports a wide range of file types. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. The continued creation of translation software, along with additional API services, may offer numerous solutions where the lack of standardized data formats remains a barrier to transit agency archived transit data usage. We are proud to be a recognized Open Source Geospatial Foundation project. Bonjour à tous, je souhaite importer des données cadastre au format Edigeo et Majic pour un chantier d'aménagement foncier. So, I had a chat with QGIS superstar Nathan Woodrow & he reminded me of his idea a while back called "QLR" - QGIS Layer Reference, whereby you can group data & then save the style of the GROUP. To start out, add a Shape Map visual to a report in Power BI Desktop: Once you add. Creation of a new GRASS layer is supported within the GRASS plugin. Select the Identify tool and click on any of the points to examine the available attributes. To access the currently active layer in QGIS, you can type the following and press Enter. Performs an affine transformation on a vector layer. Anonymous said Awesome stuff! I definitely want to try this out, and you make it easy to get started. Description: I f your organisation uses a proxy to connect to the internet you may need to enable "Use proxy for web access". When trying to save a vector layer (shape) as dxf, I get the following error: Error: creation of data source failed (OGR error:Failed to find template header file header. In order for your local version of python to find the qgis. This tutorial is the third of three tutorials on getting started with QGIS. I viewed the underlying data and extracted a csv file containing the generated latitude and longitude from Tableau. 07:30 PM QGIS Application Bug report #21354 (Closed): SAGA Difference wrong result Hi Using SAGA Difference in processing I try to create a new layer with the result as a difference between the two l 07:24 PM QGIS Application Bug report #21349: QGIS Clip and Difference - GEOS geoprocessing error: intersection failed. Urban model* Created from Content > My Content > Create. To get OSM data, use the "Vector → Openstreetmap" menu: "Load data" will connect to the OSM server and download data. GIS Quick Tip - Create an "action" in QGIS July 25, 2013 July 25, 2013 / dragons8mycat Just found this in QGIS and have had a quick play and really like the way it functions, so wanted to share it with everyone. QGIS export of KML to vector file SHP failing; warning box says that "type can be overridden with a layer creation option" but I see no menu option anywhere to set this. It assumes viewer has already watched the point and line feature tutorials at the ‘GIS & GPS Tips and Techniques. Layers can be removed by the user in the QGIS interface, or via Python using the removeMapLayer() method. Step by step instructions for creating a polygon feature in Quantum GIS. code-block:: python. So if you deal with a lot of imagery it can get to be a hassle. e either "Point", "Line" or "Polygon"?. After a few failed attempts, I decided to use QGIS to create this map. Your solution is the perfect way. org and support the Open GIS movement. "Export to vector file failed. Easy Tip - A Quick Way to Select All, View Entire Layer or Make a Layer Editable. I am using Qgis 2. I have just ran into an issue with QGIS/PostGIS and could use some help. 4 when closing a project, the application shows a warning about potential data loss if there are any non-empty memory layers present. OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. Je voudrais convertir. ciao Utilizzo QGIS 3. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: