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34

Since this question never gets old, I built a site that does the Brute Force method. If you drag a zipped shp+shx onto the map it will map it in every coordinate system available in PostGIS. Assuming you know what "correct" looks like, you can zoom to that area and click on the polygon to get the .prj file from epsg.io.


21

I really love this web tool: http://projfinder.com/ . Get some X,Y coordinates from your unkown file, Zoom to approximately the same place on the globe, paste in your coordinates, and let it guess.


13

I had the same problem and opening the layer property, I saw the coordinates of the label apearing in red : By clicking on the menu (on the red icone) and selecting "store data in the project", I was able to solve the problem and move the labels. I hope it works for you as well !


12

MapSwipe Tool perhaps? Its description: This plugin is a map tool for swipe active layer, for example, you can see the difference with others layers below.


9

This is a few years after the question, but here's one that is browser-based and does exactly what you asked for: GOTOES: Add Time Stamps to GPX Files


7

ArcGIS's Create Fishnet tool combined with the Intersect will do this for you. Try this workflow: Create Fishnet (Data Management): use your polygons as the template extent. Make sure to select "Create Label Points" as this is the vector layer that will become the regularly distributed sample points. Adjust the parameters so that you get the number of ...


7

You can alter the default saving location through Options > Processing. This also allows you to specify a pre-execution python script which I assume could be written to set the save folder (details here: https://docs.qgis.org/3.10/en/docs/training_manual/processing/hooks.html) This answer indicates you can grab the current project path quite easily: ...


6

To do selection for all layers, you need to install a plugin called "Multiple Layer Selection" Plugins -> Manage and Install Plugins -> search for "Multiple Layer Selection" Click on the selection icon and you can select across the layers without the need to go to layer panel to select the layer first. To identify the features ...


6

The algorithms in the GRASS folder might be all there but the Processing framework requires a GRASS command to have an associated description file (saved as .txt files) to identify the correct input parameters. This is described in a grass.txt (or grass7.txt.) file which can be located in your QGIS directory. For example: C:/Program Files/QGIS 2.18/apps/...


6

ArcGIS Pro is still in the process of increasing it's toolset, that's an optimistic outlook, others have had similar questions in other forums, Where is the classification histogram? and ArcGIS Pro - histograms within graduated colour symbology. Currently, to access Histogram and Statistics information your best option is to you the Histogram and ...


6

QGIS (at least in 3.0+) has a pole_of_inaccessibility function you can use. Calculates the approximate pole of inaccessibility for a surface, which is the most distant internal point from the boundary of the surface. This function uses the 'polylabel' algorithm (Vladimir Agafonkin, 2016), which is an iterative approach guaranteed to find the true pole of ...


6

This bug is still present in version 3.6.2. You need to open the Layer Property, click on each of the data defined coordinates X and Y: and select the "store data in project" box:


6

You have two options, depending on whether the points are actual duplicates (exactely the same point) or if the are "almost" duplicates (very close to one another): Use Menu Processing / Toolbox / Delete duplicate geometries. This will eliminate duplicate points. On the screenshot, I created several points as actual duplicates - to make them ...


5

Try the ogrinfo program supplied as part of GDAL. See How to access Shapefile metadata using OGR? So ogrinfo might not give you the projection information without a .prj file, but it is still a useful tool to help you investigate the list of potential projections. For example: Geometry: Polygon Feature Count: 269 Extent: (320000.000000, 505000.000000) - ...


5

To add to the other responses in this post, I would add the following: How To: Identify an unknown projected coordinate system using ArcMap Provide a specific check on NAD1927 If the coordinates are in decimal degrees, such as between longitude -180 and +180, and latitude -90 and +90, identify the Geographic Coordinate System (datum) used for the data. ...


5

Under Settings > Options > Digitizing, Find the "Rubberband" setting, Then "Line Colour" and adjust the "Alpha Channel" on the colour chooser. I find that an Alpha value of 50 gives a nice level of transparency but of course you can tweak it as you desire:


5

The geoprocessing history is often included in the metadata of the item, and it is also logged in the geoprocessing results window. More info from ESRI here


5

This is a good video that provides you with a walkthrough on generating a flood inundation map, QGIS Flood Risk Mapping Walkthrough. Also, you can find additional case study here


5

OpenJUMP http://openjump.org can do that on desktop. Compressed format that is good for copy-paste Beautified format that helps visual interpretation


4

It sounds like your custom tool is expecting a dataset rather than a layer. Consequently, when you drag and drop a dataset in ArcCatalog all is fine. However, when you try to drag and drop a layer from the Table of Contents it rightly complains that it is not a dataset. Try drag and drop of the dataset, which is the source of the same layer, from the ...


4

It sounds like you are dealing with a graphic so use the Select tool on the Draw toolbar to select. Then on the same toolbar under the Drawing pulldown you should be able to Convert Graphics To Features so that you can edit it. Alternatively, once you have it selected you can use the Delete key (or Edit | Delete) to delete it. Edit | Select All ...


4

You can accomplish this by creating a new template. If you create an mxd, and add the custom tools or models you want, then save the document to the "my Templates" directory, you can select that mxd as the template when opening arcmap. Your custom tools will be in the toolbars you added them to. It is not the same as editing the normal.mxt, but is probably ...


4

It might be easiest to try using QGIS and dropping the geojson into it. Then do a join by attribute. A side benefit of it being graphical is that you can browse/label the counties and then quite easily spot check your joined data.


4

Check your project's settings. The project also has a default distance unit which may be set to metres.


4

This is a known bug. It was reported for QGIS 3.0.3 and was fixed, but it re-appeared in 3.2.1. Your options are: Wait for a bug fix. Revert to QGIS 3.2.0 - download old version of QGIS here. Use a static field for data-defined label positions. Create fields called "LabelX" and "LabelY", with Field Calculator expressions x($geometry) and y($geometry), ...


4

Is there a tool or equivalent algorithm for the logical fourth one: "Merge Parts"? No, there isn't. The adjacent parts of a multipolygon are considered a topological error and must be linked with the Fix geometries tool. Is it even possible to select individual parts? No, it isn't. You can select features, not individual parts. Is there ...


4

When creating line objects the Advanced Digitizing window shows you distance (d), angle (a), x coordinate and y coordinate. To use it, switch on both the Advanced Digitizing panel and toolbar and click the icon for 'Enable advanced digitizing tools' when you are editing


3

I had the same problem while I was working on my project (DEMs). One of the DEM was unknown coordinates and cannot be projected, so I did the 'georeferencing' utilizing of Georeferencing tool in ArcMap. After Georeferencing, you'll get your prj.file.


3

The tools are in Advanced Editing toolbar. Customize->Toolbars->Advanced Editing Tools.


3

This is a long shot, but do you have a 'Production Mapping', 'Defense Mapping', 'Aviation', or 'Maritime Charting' extension for ArcGIS? It seems the "Dice Polygons" tool will accomplish what you need. I've never used the tool personally, but from the description, it sounds like a winner. Search Link EDIT: Alternatively, I've written a dice algorithm for ...


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