Questions tagged [polygon-creation]
Process of creating geometric polygon features.
551 questions
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Summary of overlapping rasters in QGIS
Using QGIS, I have imported a dataset consisting of 288 raster layers. I am wanting to create a polygon layer for the data footprint (not extent) of the rasters that shows how the raster are ...
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How to create unique grid cells in QGIS with overlapping polygons?
I have a grid of polygons and a larger polygon (which is really just a border). The overlapping polygon intersects the smaller polygon grid and divides some cells (see picture). I am trying to add an ...
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Buffering line vectors that only buffer along the length of the line in QGIS
I am trying to buffer some line vectors, however I ideally only want the buffers coming from the lengths of the lines rather than the buffers surrounding the whole line and coming off of the ends of ...
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Way to package an ArcGIS Pro project that contains a raster-to-polygon layer
I have FEMA 1% raster data, that I converted to polygon using raster-to-polygon tool. Esri is blocking me to package the project because I used that tool. I even deleted all the FEMA layers and still ...
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Using Geometry Generator or any method to create dimension lines from two different polygons in QGIS [closed]
I am working on development applications and need to generate some information. I have a buildings shapefile with the building footprints, as well as a parcel fabric shapefile.
What I want to do is ...
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Visualizing provided uncertainty radius data in QGIS
In QGIS, I have data consisting of 4 fields (columns): "Date", "Long", "Lat", "Uncertainty Radius (UR)". While the latlong plots look good, I need to provide a ...
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Polygons from ArcGIS REST Server raster in QGIS
I have an old survey map (of an estuary) I've access through the ArcGIS REST servers plugin. It looks like the server doesn't allow direct saving, so while I can see and access the map, I can't copy ...
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Drawing polygon squares from points using QGIS
I have a CSV file with the following columns:
areaName, centreLat, centreLong, minLat, minLong, maxLat, maxLong.
I want to import this into the QGIS UI and have it draw squares using the min/max lat/...
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Drawing polygons on layout using PyQGIS
My purpose is to generate so called Stratigraphic Logs in a QGIS report. A stratigraphic lgc is a schematic representation of geological layers encountered during a drilling. I would like to generate ...
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Creating Polygon from coordinate strings when importing CSV into QGIS
I have a CSV file containing data for multiple substation areas. One of the fields in the attribute table is called "geometry", and it holds the coordinate vertices for each polygon.
I'm ...
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Extending Thiessen polygons to region shape in ArcGIS Pro
I've created Thiessen polygons for a region, but the output doesn't reach the geographic limits needed. How can I expand to the limits using ArcGIS Pro?
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Interpolating and creating polygons from millions of data points in ArcGIS Pro [closed]
I have a large feature class containing millions of datapoints. For the sake of simplicity, let's say that each point has coordinates along with a value from 0-500.
I am trying to create polygons from ...
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Convert vector (points, lines, polygons) data into one whole polygon layer
The vector data in the left image consists of traffic signs, road lines, sidewalks, etc.
I want to make a big polygon where all the datas are located.
I've tried "Convex Hull", "Minimum ...
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Clustering of points within distance & criteria of max number of points within cluster & max cluster size
I am using QGIS and I have a cluster of say 1000 points. I want to cluster these points such that all points which are within 200 m of each other will be part of the cluster but with the constraints ...
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Properly drawing overlapping features in QGIS
I want to copy the below image and so draw polygons of different colors, where each color is a known interval. But I was wondering which is the correct way to achieve that, since it already happened ...
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