# Qgis Fix Topology Errors

(In prior versions of the installer, we had a template database. Project Management Content Management System (CMS) Task Management Project Portfolio Management Time Tracking PDF. First you will have to. And remember to avoid ngons (you've got some there). Fix reshape tool not working on polygons when first/last node is involved Fix handling of joined layers in QGIS server Fix marker size in map units in composer legend Make QgsColumnTypeThread use a separate postgres connection (fixes multithreading issues) Fix label properties stored differently depending on locale. Is there an. I have to fix the geometry validity issues first using the "Check Geometry Validity" tool. then we need to use GRASS. The map shows the extra lines in red inside the external boundary (in this case the international boundary), these represent the topological errors. This video shows how to resolve a few common vector topology problems using GRASS tools of the category "v. Data Sources When QGIS releases a new version, it. 1 Raster Cheat Sheet (PDF) · PostGIS 2. FreshPorts - new ports, applications. clean" tool (GRASS GIS 7 commands): There is a tool in the free and open source software QGIS called "v. This allows the user to have the correct format to run this tool. Topology within the context of geographic digital datasets are the rules that related layers must follow if they are to be considered valid. You can see the console messages cycling through all the datasets in the folder. Otherwise you cannot display this dataset within QGIS, > because the topology is invalid. Is there any other strategies that could save me some time?. I have the Standard license of ArcGIS , ArcMap where I am editing the data. The topology rule to be added. and ALTER EXTENSION postgis UPDATE; will do the trick after you've installed the latest PostGIS. To find exceptions. Topology expresses the spatial relationships between connecting or adjacent vector features (points, polylines and polygons) in a GIS. Or to quote from the QGIS manual:. QGIS Topology Checker Plugin Checking hundreds or even thousands features with topological error is tiring and time consuming. Ignore any topology errors that appear in the console. How can I fix this issue, please? Read more. There is one question still remain, how to clean the topology error?. This video shows how to resolve a few common vector topology problems using GRASS tools of the category "v. Starting from 0. Fortunately, there are some tools that can be used to clean topology error in QGIS such as geometry checker and Grass v. Fischer ] * run crssync on copy of srs. Your donations/sponsorships help to maintain and improve the quality of QGIS were able to fix the following list of issues for the QGIS 2. This has changed! In QGIS 3. osm2pgrouting is a convenient tool, and its focus to work on OpenStreetMap data. Fixing polygon geometry errors in QGIS 2. Ignore any topology errors that appear in the console. You can select the error on the map with the Fix. Advantage of topology over queries. Because of that, we need a tool that can help us to check topology error. Your topology is bad- it doesn't define the head's shape well. Changing the symbology of topology features can make recognition easier, particularly when map elements have the same color or symbology as the topology features. But existing data errors and user-induced errors are hard to find. ArcGIS topology fixing is interactive. How to automate topology check/fix in QGIS and add it to a model?. If you do not fix topology errors, you will likely receive strange results due to bad connections in the network. I'm unable to understand the input part of the circuit where the author says "Producing the opposite where the. 8; Getting Started; QGIS GUI; General Tools; QGIS Configuration; Working with Projections; QGIS Browser; Working with Vector Data; Working with Raster Data; Working with OGC Data; Working with GPS Data; GRASS GIS Integration; QGIS processing. For those wondering why I haven’t listed all the changes, please remember that this is a comparison of the basic GIS. Having vector data without topology errors is important for further analysis, as these errors may lead to incorrect results. QGIS ¶ The quintessential user friendly, cross platform (win/lin/mac) open source GIS desktop application and a server. I hope you get the idea. The topology rule to be added. Keep going further and then connect eyelid and lips meshes together. They say, on the above linked page, that "All When data is migrated into an enterprise geodatabase using the simple loader errors automatically with topology rules. 0 · QGIS C++ API Documentation 2. then we need to use GRASS. In the panel click Configure. Imagine that Alice is flipping a coin with unknown bias $\theta$ and reporting the results to Bob, who is conducting Bayesian inference. Digitizing in GIS is the process of converting geographic data either from a hardcopy or a scanned image into vector GIS data by tracing the features. This post aims to illustrate one of the most common issues and presents an approach that can help with these errors. Go beyond the basics and unleash the full power of QGIS with practical, step-by-step examples QGIS is the leading alternative to proprietary GIS software. Port details: qgis Free and Open Source Geographic Information System 3. Project Management Content Management System (CMS) Task Management Project Portfolio Management Time Tracking PDF. I am using QGIS Desktop 3. Check Visible extent only. Start an Invalid Geometry Definition its geometry information which is again represented by points. Project Management. If your vector layer is in a very bad shape, with hundreds or thousands of geometry/topology errors (like self intersections), overlapped areas, empty spaces between polygons that are supposed to be adjacent, etc. clean" trough the Quantum GIS interface. I have set up the topology type using the command Add- Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. During the recent QGIS training exercise I taught the QGIS user could exploit the many cleaning v. Next, fire up pgAdmin. 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. Check Exceptions, and uncheck Errors. This post is a quick instruction for installing Postgres 9. Check out our QGIS video tutorials where we go through this tool and others. Thank you so much for pointing me in the right direction! We were, indeed, connecting to the wrong master. Lesson: Feature Topology¶. 0 slide deck. I get this error: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server I tried using the local IP address to connect a. They say, on the above linked page, that "All When data is migrated into an enterprise geodatabase using the simple loader errors automatically with topology rules. > > I would suggest to close the session when clicking on the upper-right X > as well as the digitize-window. While there are thousands of plugins available in the Plugin manager, it is often necessary or advantageous to create your own plugins to automate common tasks or add extra functionality to a workflow. The GRASS-dataset needs a rebuild of topology with v. Hi , When I use the sigplorer to view the topology for some nets, there are some errors like the attached picture, and then the simulation can't continue. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Run the Load a Topology to a Parcel Fabric tool. two lines in a roads vector layer that do not meet perfectly at an intersection). The symbology for several types of topological features can be changed. 2 One-by-one, you can go through errors and fix them. Start from extruding the eyelid circular shape, then do the same with lips. When I run the polygonize tool, a warning shows up saying that there is an "Import Error: DLL load failed" (see Figure 2). Topology editing is a strong point in ArcGIS with a ton of options to fix editing errors. We would like to buy some servers and we are looking into DELL server with 24 NVMe drives (like R740xd2 - 2 socket server) since we need very high read IOPS and throughput. I hope this QGIS Population Density tutorial has been beneficial please contact me via the contact form should you have any questions. 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. One-by-one, you can go through errors and fix them. See Drawing and displaying topologies in ArcMap. Read rendered documentation, see the history of any file, and collaborate with contributors on projects across GitHub. There are about 9,000 topology errors due to this and merging the overlaps back into the curbs layer (using the fix topology merge tool) one by one isn't really feasible. Then press CTRL button (Mac iOS user click on CMD button) en draws a rectangle with your mouse pointer to select each segment affected by the topology issue. Is there any other strategies that could save me some time?. This post aims to illustrate one of the most common issues and presents an approach that can help with these errors. The unique index on column '%1' is unsuitable because Quantum GIS does not currently support non-int4 type columns as a key into the table. Topology expresses the spatial relationships between connecting or adjacent vector features (points, polylines and polygons) in a GIS. How to read these diagrams: The topology rule occurs within a single feature class or subtype. So i have made some view to understand what was happening with my data. QGIS already offers a lot of possibilities to visualize raster data (contrast enhancement, color map, handling of transparent pixels, …) Last year, Radim Blazek refactored the raster provider interface and added on-the-fly reprojection support for rasters to QGIS. tags: postgis sql topology opendata toulouse. To find errors for a particular topology rule. About correcting topology errors. The GRASS Cookbook (GCB) is a collection of recipes for typical GIS tasks which can be accomplished with GRASS plugin in QGIS. Getting access to OSM data in a GIS format is integrated in QGIS. This toolbox provides a new set of tools to navigate, find and fix validation errors different from each topology rule. Click Topology Checker plugin. So, who's the winner here? Was it a far contest?. 1 Raster Cheat Sheet (PDF) · PostGIS 2. Notice that this command is similar to what you ran before, but it uses a variable (denoted by %X) in place of a specific dataset name. Click the Show drop-down arrow, and click Errors from all rules. 3GB) fired up QGIS, and ran the Clip operation on the two files. Topology editing is a strong point in ArcGIS with a ton of options. You can create a report of the errors and exceptions for the feature classes in your topology. View all issues; If any of the "topology checks" options is enabled, then cliking on "save layer edits" toggles editing off. is a step-by-step guide to installing QGIS 2. The problem I'm having is that some of these problem polygons are being modified when the topology is validated. This tutorial explains the process for searching, downloading and using OSM data in QGIS. 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. Click the Show drop-down arrow, and click the rule. 2 graphics =3 3. The default action could be changed with the last icon Error resolution settings. ] Failed to execute (Union). This post is a quick instruction for installing Postgres 9. In the panel click Configure. 0 'A Coruña' and was released on 25. Can anyone suggest a collection of (solved) exercises in topology? Undergrad level, as a companion to Dugundji's Topology (although excellent it doesn't provide the solutions to the problems). There are several general ways you can clean up these errors:. pdf), Text File (. Topology is especially useful for detecting and correcting errors of digitized data because it checks and validates the spatial relationship of neighboring and overlapping features. x to ensure topology is digitised correctly and errors are kept to a minimum. QGIS ¶ The quintessential user friendly, cross platform (win/lin/mac) open source GIS desktop application and a server. We will take avandtage of topologies to clean-up a real topological road network, coming from Toulouse OpenData files. OGC found some errors that it reported solved. FreshPorts - new ports, applications. In this final section, we will cover how to repair topological geometry errors via topological editing. All Software. This recipe shows you how to use the built-in GRASS tools to fix various topology errors in vector layers. These exceptions will be saved on a separate, configurable layer. Click Topology Checker plugin. The current version is QGIS 3. There are several ways to correct topology errorsonce you've discovered them. Just want to add minor additions. And clean topology is absolutely necessary in GIS. The Geometry Checker dialog show differents grouped settings in the first tab (Settings): Input vector layer: to select the layer to check. When the shapefile is not clean, the "Dissolve" tool in QGIS doesn't seem to work, it freezes. There are quite a few new raster types available for the software, some of which I have to admit that I had never heard of, but it’s interesting to see that you can now export topology errors in the ArcMap Basic license. I bought an old dell R710 to learn hyper-v, AD, VMware etc. sip conditionals meant for 4. GitHub makes it easy to scale back on context switching. Topology Checker (Find topological errors in vector layers) 21. This recipe shows you how to use the built-in GRASS tools to fix various topology errors in vector layers. What to do? Fix errors using topology tools in ArcGIS. Zonal Statistics Plugin (Calculate count, sum, and mean of a raster for each polygon of a vector layer) 4. You can see the console messages cycling through all the datasets in the folder. Maybe postgis tests the geometries first and tries to fix them automatically? My problem is not with the merge, when I was trying to merge polygons that I had digitized with the option "Avoid intersection of new polygons" I had some errors. I am trying to scale out our search topology by adding a new Index Partition and Query Servers. Port details: qgis Free and Open Source Geographic Information System 3. We will take avandtage of topologies to clean-up a real topological road network, coming from Toulouse OpenData files. A Only selected features checkbox can filter the geometry to the one selected. So the best advice is to fix the data before using it. Fix the errors found – preferentially through automatic means. Project Management. 9 release, QGIS has optional scripting support using Python 2. Check Visible extent only. The topology rule occurs. 0 · QGIS Python API Documentation 2. Lync 2013 - Enabling Topology Completed With Errors Posted on 19th March 2013 by Chris Hayward — 10 Comments ↓ I recently started building a Lync 2013 Pilot Pool alongside my Lync 2010 deployment. 12 but actually 4. Luckily, the process of fixing topology is relatively straightforward, and I followed the instructions in these PowerPoint slides to learn how to fix topology errors and run network analysis tools in QGIS. Lab 3: Digitizing in QGIS What You'll Learn: In this Lab you'll be introduced to basic digitizing techniques using QGIS. The first step is to identify where the errors are using Topology. 0 release Repair Geometry would add. questions/issues when creating a topology. 0 and optimizing the system. After running the tool just select one of the errors and QGIS will zoom exactly where the problem occur. * Add patch to fix postgis topology availability detection query. 4 release reflected data repaired so all topology errors were fixed as reported by ArcGIS. Geometry Checker Plugin¶ Geometry Checker is a powerful core plugin to check and fix the geometry validity of a layer. Of course it's one of the topology variant. But, hundreds errors are bothering me for cleaning up features. Keep going further and then connect eyelid and lips meshes together. Part 1 Understanding and creating a new plugin framework. So this very innocent looking data layer has at least two problems (four total but I only checked for invalid topology and overlapping geometry) Very Boring Data. However that is only a partial solution, as some processing algorithms will still produce mangled output, which I found the hard way. To find errors in the visible extent. This is somewhat messy data and we have selected to skip failures. osm XML file or by direct download from the OpenStreetMap API. Vector topology cleaning. And clean topology is absolutely necessary in GIS. This time it took all of 17 minutes and 21 seconds to get a new contour layer. 1 Raster Cheat Sheet (PDF) · PostGIS 2. Some network data already comes with a network topology that can be used with pgRouting out-of-the-b. Your topology is bad- it doesn't define the head's shape well. Errors and exceptions are stored as features in the topology layer and allow you to render and manage the cases in which features need not adhere to the topology rules. The added bonus with QGIS is the multiple GIS software packages and plug-ins that extend the core product. ] Failed to execute (Union). 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. The QGIS OpenStreetMap Plugin is a plugin for the desktop GIS application QGIS. clean" trough the Quantum GIS interface. x, we now have a wide range of network analysis tools, both for use case where you want to use your own network data, as well as use cases where you don't have access to appropriate data or just prefer to use an existing service. Sandro Santilli's presentation at PostGIS Day Paris 2011 conference gives a good synopsis of PostGIS Topology and where it is headed Topology with PostGIS 2. QGIS already offers a lot of possibilities to visualize raster data (contrast enhancement, color map, handling of transparent pixels, …) Last year, Radim Blazek refactored the raster provider interface and added on-the-fly reprojection support for rasters to QGIS. The first step is to identify where the errors are using Topology. Fix #3: At this stage, depending on how the parts were created, the assembly may blow up. Topological or topology-based data are useful for detecting and correcting digitising errors (e. How can I fix this issue, please? Read more. We took that out since creating a database from template doesn't maintain search paths set by postgis_tiger_geocoder and postgis_topology extensions. But existing data errors and user-induced errors are hard to find. QGIS ¶ The quintessential user friendly, cross platform (win/lin/mac) open source GIS desktop application and a server. To fix topology gap issues, open your Trails - Manager app in your account and click on the pencil icon on your extreme right. is a step-by-step guide to installing QGIS 2. I would like to use \scalebox to scale a TikZ picture (included with \input) that is located inside a center environment (I don't need a float environment in this specific case). There was no adverse effect to these types of geometry therefore the Check Geometry tool will no longer report the feature as a problem, and the Repair Geometry tool will no longer perform a "fix" on the feature's geometry. After running the tool just select one of the errors and QGIS will zoom exactly where the problem occur. Topology errors are violations of the rules that you can easily find and manage using the editing tools found in ArcMap™. Create the topology using ArcCatalog or geoprocessing tools. Advantage of topology over queries. 18 to check error overshoot, undershoot , but it show all error, so I got many difficult in fix error. Simply put "topology" is the term used to describe how points, lines and polygons relate to each other. I am using QGIS Desktop 3. Resave as something sane, use iconv or recode. These exceptions will be saved on a separate, configurable layer. This tool provides a group of integrity rules that check the validation of the geometries relationship in the data. The Look of Maps: An Examination of Cartographic Design is a cartographic classic by Arthur H. The current version is QGIS 3. Advantage of topology over queries. 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. Your donations/sponsorships help to maintain and improve the quality of QGIS were able to fix the following list of issues for the QGIS 2. While there are thousands of plugins available in the Plugin manager, it is often necessary or advantageous to create your own plugins to automate common tasks or add extra functionality to a workflow. x to ensure topology is digitised correctly and errors are kept to a minimum. One great resource for free and openly licensed data is OpenStreetMap(OSM). Once the geometry errors have been identified, the work of repairing the layer begins. I am working with topology checker in Qgis 2. In this case, also the threshold parameter requires several values to be listed accordingly. So this very innocent looking data layer has at least two problems (four total but I only checked for invalid topology and overlapping geometry). The free version which has no GUI. Should this happen? I thought validation should just flag any errors that go against the set rules. Of course it's one of the topology variant. There are quite a few new raster types available for the software, some of which I have to admit that I had never heard of, but it's interesting to see that you can now export topology errors in the ArcMap Basic license. I'm trying to understand current mirror circuits and I've been reading this article. How can I fix this issue, please? Read more. txt) or read book online for free. > > I would suggest to close the session when clicking on the upper-right X > as well as the digitize-window. The map shows the extra lines in red inside the external boundary (in this case the international boundary), these represent the topological errors. is a step-by-step guide to installing QGIS 2. Topology: cannot delete slivers (or gaps). Geometry Checker Plugin¶ Geometry Checker is a powerful core plugin to check and fix the geometry validity of a layer. This video is a practical, hands-on course updated for QGIS 2. If this kind of errors are not too big they can all be easily removed using the QGIS Processing toolbox, specifically using one of the GRASS modules and "snapping" import option. I have the Standard license of ArcGIS , ArcMap where I am editing the data. From GRASS-Wiki. This image shows an administrative unit polygon file, where a new topology was created to produce the layer shown in red outline. While there are thousands of plugins available in the Plugin manager, it is often necessary or advantageous to create your own plugins to automate common tasks or add extra functionality to a workflow. However, I have sometimes hundreds of errors. Slivers and gaps keep your dataset from forming a continuous fabric and should be identified and fixed as appropriate. 1 Topology Cheat Sheet. It is very simple to create topology rules with the Topology Checker plugin. Ignore any topology errors that appear in the console. What to do? Fix errors using topology tools in ArcGIS. 18 to check error overshoot, undershoot , but it show all error, so I got many difficult in fix error. The added bonus with QGIS is the multiple GIS software packages and plug-ins that extend the core product. Keep going further and then connect eyelid and lips meshes together. I'm trying to understand current mirror circuits and I've been reading this article. qgs project in QGIS Desktop if it not already. It allows users to install different QGIS versions on linux without having to recompile or use Docker. 0 release Repair Geometry would add. There are quite a few new raster types available for the software, some of which I have to admit that I had never heard of, but it's interesting to see that you can now export topology errors in the ArcMap Basic license. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Topology Checker (Find topological errors in vector layers) 21. You can select the error on the map with the Fix. After running the tool just select one of the errors and QGIS will zoom exactly where the problem occur. If your vector layer is in a very bad shape, with hundreds or thousands of geometry/topology errors (like self intersections), overlapped areas, empty spaces between polygons that are supposed to be adjacent, etc. This time, using topology checker and automatic correction is not suitable. Topology editing is a strong point in ArcGIS with a ton of options to fix editing errors. See Validating a topology. txt) or read book online for free. It adds support for OpenStreetMap raw vector data, bringing it in as a layer either from. I installed hyper-v bare bones on the R710 - Windows 2016 hyper-v server. I have an Android One with Oreo version and suddenly my Android rebooted and after that it started to behave strangely: 1) Notification section doesn't work. This video is a practical, hands-on course updated for QGIS 2. Next, fire up pgAdmin. Best of its kind. Our multidisciplinary team with extensive experience in the sector allows us to offer the best training in geomatic-related matters. Validate the topology and fix any errors. Why? Topology. Post navigation Using QGIS to fix geometry errors. Zonal Statistics Plugin (Calculate count, sum, and mean of a raster for each polygon of a vector layer) 4. Scribd is the world's largest social reading and publishing site. There are several ways to correct topology errors once you have discovered them. I hope this QGIS Population Density tutorial has been beneficial please contact me via the contact form should you have any questions. These exceptions will be saved on a separate, configurable layer. Several tools may be listed to be executed sequentially. This video shows how to resolve a few common vector topology problems using GRASS tools of the category "v. I have set up the topology type using the command Add- Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Edgematching and rubbersheeting helps fix errors. 0 'A Coruña' and was released on 25. The OSM database consits of streets, local data as well as building polygons. To validate and analyse the errors that may exist, we, first of all, have to activate the topology tool. Topology rules have the advantage that they only need be created once and then they can check your work as you go. Your topology is bad- it doesn't define the head's shape well. Is there any other strategies that could save me some time?. A new topology toolbox. Luckily, the process of fixing topology is relatively straightforward, and I followed the instructions in these PowerPoint slides to learn how to fix topology errors and run network analysis tools in QGIS. The added bonus with QGIS is the multiple GIS software packages and plug-ins that extend the core product. This recipe shows you how to use the built-in GRASS tools to fix various topology errors in vector layers. As @swatchai pointed out the polygon might be missing or the topology could be we always fix their work and now they stop. 8-UserGuide-en. To find errors in the visible extent. I import it and run topology in QGIS and see how I did. Since QGIS 3. Is there any other strategies that could save me some time?. On this page, as well as on ESRI's website, it is suggested to use arcgis Repair Geometry to fix this issue. QGIS ¶ The quintessential user friendly, cross platform (win/lin/mac) open source GIS desktop application and a server. Zonal Statistics Plugin (Calculate count, sum, and mean of a raster for each polygon of a vector layer) 4. Lync 2013 - Enabling Topology Completed With Errors Posted on 19th March 2013 by Chris Hayward — 10 Comments ↓ I recently started building a Lync 2013 Pilot Pool alongside my Lync 2010 deployment. FreshPorts - new ports, applications. ArcGIS Help 10. The GRASS-dataset needs a rebuild of topology with v. Post navigation Using QGIS to fix geometry errors. A new topology data model can be created for each project. clean modules under GRASS GIS. Network topology refers to the configuration of connections between the elements (links, nodes, etc. I hope you get the idea. I am trying to create a topology to fix some "small area" polygons that have gaps and overlaps in between them. 0 (PDF) · PostGIS 2. ] Failed to execute (Union). I am working with topology checker in Qgis 2. Lab 3: Digitizing in QGIS What You'll Learn: In this Lab you'll be introduced to basic digitizing techniques using QGIS. Topological or topology-based data are useful for detecting and correcting digitising errors (e. The free version which has no GUI. > > Cheers > Stephan > Yes, known problem, I'll try to fix this for 0. Reopen the assembly, and when prompted to use the file or not, select the "Open without this document" option. 1 Raster Cheat Sheet (PDF) · PostGIS 2. QGIS already offers a lot of possibilities to visualize raster data (contrast enhancement, color map, handling of transparent pixels, …) Last year, Radim Blazek refactored the raster provider interface and added on-the-fly reprojection support for rasters to QGIS. So, who's the winner here? Was it a far contest?. A zip file of the current release is also available here for manual installation. 0 (PDF) · PostGIS 2. 12 was not 0x041200 (current 4. (The contour. 2 One-by-one, you can go through errors and fix them. Prior to the 10. Topology editing is a strong point in ArcGIS with a ton of options. QGIS User Guide » If not stated otherwise, all content is licensed under Creative Commons Attribution-ShareAlike 3. One-by-one, you can go through errors and fix them with the error inspector. 1:3305 - I could see that the reported MySQL version matched the version from the old master. To find errors for a particular topology rule.