Questions tagged [vector-grid]

Use for questions about vector grids which are also known as fishnets. For questions about the Leaflet Plugin please use the tag "vector-tiles"

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Why is the extent of a "point" grid different from a "polygon (rectangle)" grid in QGIS?

I cannot find an answer to this question, not even in the official QGIS documentation. Here is the problem: First, I delineate a survey area layer (geometry type is polygon): When I create a grid (...
Chavdar Kirilov's user avatar
1 vote
1 answer
29 views

Extracting line coordinates with Leaflet and VectorGrid

I'm using a map display in Leaflet and polylines using Leaflet.VectorGrid. By clicking on a line I want to export the coordinates of this line. var layerGroup12 = L.vectorGrid.slicer( pistes,{ ...
Manard82's user avatar
  • 187
2 votes
1 answer
61 views

QGIS 3.22.4 - Atlas grid generated wrong images with invalid labels

I have two vector layers, one is a GeoJSON (can be downloaded from https://pastes.io/vtlw5surdx) which contains countries with points and their coordinates in WGS84 CRS and one layer is shapefile ...
Bằng Rikimaru's user avatar
0 votes
0 answers
43 views

Create a raster which has a value of 1 for where a class of object is present and a value of 0 when it is not in ArcGIS

I have probably explained this very badly, but basically I have polygons which outline the extent of individual fish farms in a lake. I have created a 1km by 1km fishnet of the area within said lake, ...
Birdman's user avatar
  • 61
1 vote
0 answers
32 views

QGIS Classifications on 10km^2 square grid

I am new to QGIS, and I have a problem that I don't know how to solve: My goal is to have a 10km x 10km square grid of Europe where each cell of the grid is classified by land use. With just a few ...
Philip Schmid's user avatar
0 votes
0 answers
68 views

Polygon grid and raster layer do not align R

I noticed that polygons and raster cells are not perfectly aligned. Why the border of the cells and the colors do not align perfectly? There is a little misalignment (the colors do not change exactly ...
baccione's user avatar
2 votes
2 answers
180 views

Creating vector grid in QGIS for two different polygons without overlapping

In QGIS I have the data for all the continents except Antarctica. Now I want to create a grid of size 1km * 1km for each country however the problem I am running into is that if I take two ...
Arup Chakravorty's user avatar
0 votes
0 answers
48 views

Calculating average of nearest neighbour distance between points in grid

As a novice ArcMap user, I would like to calculate the average of the shortest distances between each point contained in a vector grid. My inputs are two vector layers : a polygon grid and points. The ...
Tom Gloaguen's user avatar
1 vote
1 answer
97 views

Making dot grid in specific arrangement

I need to create dot grids for multiple projects and looking for a way to generate/symbolize them systematically to save time. These grids have a couple rules to them though, and the way QGIS ...
forestGIS's user avatar
  • 313
5 votes
1 answer
212 views

Computing grid cell statistics using LiDAR point cloud in QGIS

I have a LIDAR data .laz file of a DEM and a cell grid vector file. I want to compute grid cell statistics, like mean and variance using the LiDAR data. How can I do this in QGIS?
user1889930's user avatar
2 votes
1 answer
239 views

Download images to Google Cloud Storage using geemap.download_ee_image_tiles

Few days ago I saw on a Linkedin post that download_ee_image_tiles option was added to geemap. I was trying to use it with image I had and a fishnet that I have created before. However, I am not sure ...
ReutKeller's user avatar
  • 2,107
1 vote
1 answer
175 views

Creating fishnet grid in R that sums values of points within grid instead of counts

I am very new to both coding and creating maps in R. Is it possible to create a fishnet grid in R that sums values of points within grid instead of counts? I have a dataset with locations for sewage ...
HopefullyOptimistic's user avatar
2 votes
1 answer
165 views

Generating a coveringGrid clipped by the input geometry

I'm trying to generate a rectangular vector grid from a FeatureCollection using ee.Geometry.Polygon.coveringGrid, and clip it to the borders of the original vector. However, the intersection function ...
eivindhammers's user avatar
1 vote
0 answers
75 views

Processing a huge vector grid creation on QGIS with square grid size of 100m x 100m

As a complete beginner to the world of GIS, I have come across a major roadblock: My goal is to create a grid with 100m * 100m square grid boxes over the total area of Canada and USA. I have managed ...
Arup Chakravorty's user avatar
0 votes
1 answer
110 views

Setting a minimum overlapping area using overlay_intersect in QGIS

I want to use the overlay_intersects function to obtain a new column on a grid layer with 0,1 values. The binary results should come from the eventual overlap between my grid and the Shapefile of a ...
Cristina Marcolin's user avatar
0 votes
0 answers
25 views

Cover area with point clusters bounds

Suppose, I have an area covered with regular grid points. Points have some categorial attribute. I need to cover the area with polygons corresponding to the value of this attribute (it is like bounds ...
PrintScreenSys's user avatar
1 vote
1 answer
21 views

Unexpected Output Using GridIndexFeatures in ArcObjects [closed]

I am using ArcObjects 10.2 to generate grid index features programmatically. I can get the correct output using the built in GUI geoprocessing tools, and with ArcPy. Furthermore, when I copy the ...
amasephy's user avatar
  • 1,234
2 votes
2 answers
734 views

Creating a custom grid on a Folium Map

I am quite new to Python and I need to create a custom grid with a specific spacing on a Folium map for a particular district. I have added the Polygon of district boundary on the folium map. The grid ...
Jawi289p's user avatar
1 vote
0 answers
78 views

Create polygons with fixed size along lines or another polygon

My task is to create layouts for the grey polygon with a rectangle covering multiple parts for the map extend. I then have to calculate the area of they grey polygon within each rectangle. My idea was ...
ibdmn's user avatar
  • 191
0 votes
0 answers
54 views

Creating grid of polygons with set area and minimum width within given extent using ArcGIS Pro

I am trying to create a grid of features WITHIN an extent (such as a county boundary), preferably something four sided like a square, but doesn't necessarily need to be. I'm using ArcGIS Pro at the ...
Noah P's user avatar
  • 59
1 vote
1 answer
39 views

How to to find out what species are in each cell? [duplicate]

I have a polygon layer called grid_trt which consists of about 100 cells. There is a CSV layer as observation, which contains GPS coordinates and some information about 2500 species in the form of 25,...
Sina Kh.'s user avatar
  • 153
1 vote
0 answers
138 views

How to make fully nested grids using sf in R?

I am using st_make_grid() from the sf package to create grids of various resolutions, but I want the smaller one to be perfectly nested within the larger. library(tidyverse) library(sf) library(spdep) ...
Karthik Thrikkadeeri's user avatar
0 votes
0 answers
8 views

How cell values are computed by cartography::getGridLayer?

I'm trying to figure out how the "average" cell values are calculated by the cartography::getGridLayer function, with the var argument, but the documentation is elliptical. It says: "...
Jean-Luc Dupouey's user avatar
1 vote
0 answers
67 views

Getting total count in each grid cell from multiple point and polygon layers using ArcGIS Pro

I am using ArcGIS Pro 3.1. The multiple point and polygon feature layers are sources of a toxic chemical but from different companies/studies/departments, etc. The grid layer was created with the Grid ...
Hannah's user avatar
  • 11
1 vote
0 answers
65 views

Colouring a particular cell of fishnet grid in ArcMap 10.8

I am using ArcMap10.8 on a Windows laptop. How do I select a specific cell of a fishnet grid and fill it with a colour of my choice? Each cell is labelled with a number. The fishnet grid is overlayed ...
SDG's user avatar
  • 11
1 vote
0 answers
54 views

QGIS - Setting out a grid of points within a predefined area and giving them specific lat/long values

I'm basically re-learning GIS on the job, so forgive me for any inaccurate terminology or methodology etc. I will try to be as clear and concise as possible. I will be collecting the lat/long values ...
LIam's user avatar
  • 11
2 votes
1 answer
357 views

Projecting fishnet grid using ArcGIS Pro

I want to make a 20 mile by 20 mile fishnet grid over the state of Nebraska, with the origin at either the far southwest corner (approx 11,583,008.75W 5,011,971.55N m) or the far NW corner (approx 11,...
user8229029's user avatar
2 votes
1 answer
131 views

Calculate grid cells enter/exit timings from overlayed timed route

[QGIS 3.22] I have made something that works, but it seems convoluted and I wonder whether there's a more efficient way. What would you say is the best way of going from a list of waypoints with ...
Joel's user avatar
  • 127
0 votes
0 answers
81 views

Extending vector grid over larger region using ArcGIS Pro

I have a polygon grid (as a shapefile) over a certain portion of the United States. Each cell is 500 square miles, and there is a specific projection, etc associated with the grid. I want to extend ...
user8229029's user avatar
1 vote
1 answer
311 views

Sample points from each feature in a featurecollection (Google Earth Engine)

I created a grid (featurecollection containing various rectangular features) by coveringGrid function, and now I want to sample 10 points within a feature, and for every feature in this ...
yoyo's user avatar
  • 21
1 vote
1 answer
150 views

Dividing an irregular shaped grid pattern

I have a provincial grid used for the legal subdivision of land and need to split each grid cell into four for analysis purpose: https://github.com/matthewmeadows81/grid. The problem lies in the ...
MJM's user avatar
  • 975
2 votes
1 answer
111 views

Count points in a grid

I have a grid that I have created and a path that is there. I want to calculate the number of points each grid has or I want to calculate the number of points each slab or rectangle has.
Aryan Irani's user avatar
1 vote
0 answers
70 views

QGIS 'Packing Problem'?

I have 45 irregular polygons (geographic areas) of various sizes. I need to grid each one into a universal number of same-sized squares/rectangles (same sized within each polygon, not necessarily ...
David J Vaughan's user avatar
2 votes
2 answers
172 views

Remove a set of grids taking into account its overall geometry

I have a bunch of grids (100x100m) and I need to remove some of them considering the linear shape that forms some sets forms. I've blue circled the set of grids I need to remove. What I thought since ...
J.Patordi's user avatar
  • 313
0 votes
1 answer
73 views

ArcPy: Grid Index Features freezing and crashing ArcGIS Pro

I am trying to use the grid index features tool in ArcPy. However when I run it outside of the Python window in ArcGIS Pro, it freezes and crashes. When used within ArcGIS Pro it works fine. I am ...
Amidaz's user avatar
  • 11
1 vote
1 answer
350 views

Field Calculator: @row_number adds the Feature ID + 1 instead of the row-number

I created a grid of hexagons and kept only the hexagons in a circle. In effect many hexagon-ids are missing and the remaining ones start at 1409. I want them to be numbered consecutively in a logic ...
SAM's user avatar
  • 21
8 votes
4 answers
732 views

Importing grid layer from CSV in QGIS

In QGIS, I used the Create grid function to produce a grid. It produces an attribute table that looks something like that : Now, let say I have a CSV file with the same attributes. id left top right ...
Pioupiou's user avatar
  • 183
0 votes
2 answers
163 views

How to fill gaps in point feature dataset - ArcGIS Pro

I have a point feature dataset that contains gaps, as can be seen in the picture below (1). I would like to fill the gaps with additional points with an equal distance (=0.5 meters). What is the most ...
Foeke Boersma's user avatar
-1 votes
1 answer
91 views

How to make the grid polygons assume the inside centroid attributes of another layer QGIS

I have a square grid and I have multiple centroids on another layer. These centroids have many attributes as values. I want for each grid cell to assume the attributes of the centroids inside them. ...
John Silva's user avatar
1 vote
1 answer
100 views

Calculating mean values from raster data within fishnet squares

I am trying to calculate the mean raster values (mean RedTPI) for each of the 9 squares of my fishnet. Here is my workflow and what is going wrong: ^I calculated the layer I am working with by ...
mappingB22's user avatar
0 votes
0 answers
196 views

How to create a Grid in R for Kriging

I have done my work for creating variograms etc, and i would like to run kriging. I've loaded my dataset, and i know that i should create a grid file, but i don't know how. I have the shapefile from ...
Dimitris K's user avatar
1 vote
1 answer
48 views

Elevation dataset appears to have come with all of the Eastings wrong

I'm working with QGIS 3.12, trying to create a basemap of a mine site in Alberta for an env sci related project. I downloaded the 20k ASCII DEM from Altalis and imported the .gnp layer; which is a ...
Benkr's user avatar
  • 13
1 vote
0 answers
15 views

Persist attributes from a base layer to a grid layer

I currently have a shapefile of municipalities and towns as the base layer which contains attributes such as municipal name and baranggay name (town). I would want to create a hexagonal grid on top of ...
Mr09's user avatar
  • 11
2 votes
1 answer
482 views

Calculating the percent of a polygon that is contained within a grid cell in QGIS

I have a polygon that covers a grid that I've created. I want to find the percent of the polygon's area that is contained within each grid cell. I've tried overlap analysis in QGIS but this returns ...
gwvp1008's user avatar
0 votes
0 answers
15 views

Dividing a curved, tube like polygon into intervals with ArcGIS Desktop 10.5.1 [duplicate]

I am trying to divide a bunch of long, curved polygons (an example is shown in blue) into segments of 10m, from north to south, the width is 15, but is given by the lines. My first attempt was to use ...
Hvirina's user avatar
  • 35
0 votes
0 answers
46 views

Curved fishnet (vector grid for extraction) in ArcGIS

I am trying to create a sampling grid for a raster data set. I am using ArcGIS Desktop 10.5.1. with an Advanced License on a Windows 10, 64 bit. The raster data set shows tractor tramlines in crop ...
Hvirina's user avatar
  • 35
1 vote
1 answer
87 views

Serving big timeseries multidimensional vector grid

I've been working on creating a timeseries data aggregation of ocean vessel data. Things like the number of seconds that vessels spent in each grid cell per day, per vessel class, per navigation ...
RedM's user avatar
  • 1,515
2 votes
1 answer
253 views

Calculate the minimum distance of a point grid from the nearest point of another layer with QGIS

I have a grid of 1 km points and a separate group of points representing RTK stations. (See image 1) I want to create a 3rd value for the grid points that is proportional to the nearest reference ...
Tyros43's user avatar
  • 23
0 votes
0 answers
56 views

Fetching WFS layer grid of 1*1 mtr from GeoServer

I have created 1*1 grid in QGIS from Vector->Research tools->Create grid. And I have converted that grid file to shape and hosted in the GeoServer. When I am trying to fetch that layer after ...
Piyush's user avatar
  • 283
0 votes
0 answers
165 views

Rotate a fishnet in ArcGIS

I have created a fishnet of sampling points within the area defined by the polygon shown below 1. The grid is unrotated but I want to rotate it so the lines of points run parallel to the length of the ...
Josephine's user avatar

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