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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2
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0answers
21 views

Adding colour range to grid in QGIS

I am doing some mapping for vegetation monitoring across a site. I have divided the property up into quadrats using the create fishnet grid function at the size I wanted. I have then intersected it ...
2
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1answer
28 views

R fractional area calculations using the exactextractr package

I have a question related to this question. I have a gridded shapefile, which has 256 grid polygons. This shapefile represents an area of interest, and that area of interest also has a raster. I want ...
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0answers
27 views

Fishnet cell size accuracy [duplicate]

I have a raster of 500m resolution based on MODIS sinusoidal projection, so I first converted it to WGS84. In order to create a 500m fishnet of the WGS84 raster in ArcGIS, I first converted the raster ...
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2answers
35 views

“Zonal statistics” for two polygon layers using ArcMap

I have 2 polygon layers: one is a vector grid with attribute values for each "polygon cell" the other including administrative boundaries I would like to calculate the mean value of all ...
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0answers
21 views

Calculating how many acres fall within each 1 square mile section?

I am using ArcMap. I have a polygon shapefile of parcels that receive surface water from a water district. I also have a polygon shapefile of section boundaries. I want to calculate how many acres ...
1
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1answer
38 views

Is it possible to convert the USNG grid to a perfect square 10mx10m fishnet at CONUS scale?

I realize this is a ridiculous question, so please forgive in advance. Would it be possible to generate a 10m x 10m grid at CONUS scale, without any non-square polygons at the Grid Zone Junctions (...
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0answers
34 views

Pixel height and width in degrees

I am planning to create a NetCDF file from a script (Github). My shapefile is in GCS_WGS_1984 (this is one of the required files for the script). Now, the script requires to define the cell/pixel ...
3
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1answer
58 views

Creating grid with squares on same line

I have created a grid, which I want to use in an ArcGIS Online application. To create the grid (fishnet) I have used the local projection, which is in meters. I avoided using WGS84 as it is in degrees ...
3
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1answer
67 views

How to Create a Custom-shaped Fishnet Grid in QGIS

I am looking to automate the create of a fishnet grid over a large area (about the size of Rhode Island) for a mapping study. I want to use hexagonal grid cells, but the kicker is I need each of these ...
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1answer
50 views

Extending vector grid in QGIS

I created vector grids in QGIS of size 2*2km. Now I have to add few more grids of the same size to these existing grids. Is this possible in QGIS?
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1answer
30 views

Splitting up polygon with grid using QGIS

I am using QGIS. I have a county map as a single polygon, it has one FEATURE in which one FIELD is Area. I have a grid which also a polygon that divides the county into squares and each grid square ...
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0answers
22 views

How to quickly turn regular spaced points into a grid?

I'm looking for a quick way in ArcGIS Desktop or Pro to turn a set of regular spaced points into a grid like shown here Currently I am creating a fishnet first and then conduct a spatial join but I ...
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0answers
21 views

Aggregate polygons into specific shapes [closed]

So, I've basically got what amounts to a vector-based raster set. It's a series of regular-sized squares that, for all intents and purposes, are raster pixels. The only reason it isn't a raster is ...
1
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1answer
19 views

ArcGIS: Selecting features from a grid layer which are on the edge of another feature by location

I have two layers which come from the same data source. The first one is a vector grid layer which contains 1km x 1km features and looks like this: The second one is the grid layer dissolved into Sub-...
0
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1answer
26 views

Extract by mask with grid shapefile in ArcGIS Pro

I have a tiff file. I want to extract it by a grid but every shp cell should clip the tiff file to a new tiff file. Perhaps the attached image could make sense.
1
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1answer
48 views

Ortho Grid in QGIS straight and curved

I'm really new to GIS tools. I'm trying to make ortho projection maps of all the countries. I've downloaded Natural Earth Data and QGIS. I imported the data files by dragging them into QGIS. I added a ...
0
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0answers
14 views

Zonal statistics projected differently ArcGIS Pro 2.5

I have a fishnet of equally sized raster cells of 1/4 degree, which spans the whole world. Furthermore, I have a netCDF file containing precipitation data. I load both, the shape and the raster file, ...
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0answers
27 views

Creating grid in QGIS representing trial plots

I would like to create a grid in QGIS. This grid shall represent agricultural trial plots (each plot about 4,5 x 10 m). Digitizing each polygon is time-consuming and not very exact. Is there a simple ...
0
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0answers
33 views

Calculate Percentage population from Vector Grids

I have a vector grids layer of population (shapefile). Each grid represents population in that grid and have the following attributes: Area Population I want to calculate and display the percentages ...
0
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1answer
29 views

Different number of grid cells between years when using a grid layer to look at area of land cover change over time

My goal is to calculate the area of mangrove cover (vector layer) per grid cell (vector layer) over time (yearly), to determine land cover change. I have tried two ways so far. Initially I wanted to ...
1
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1answer
15 views

Assign coordinates to grid-cell in QGIS

I've created a grid using make grid in QGIS. The type of grid is rectangular (polygon) and it's 0,1 x 0,1 decimal degrees. I now want to assign an X and Y coordinate to the centre of each grid. Would ...
0
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1answer
45 views

Matching points to grid-cells - using join attributes by location

I have point data in a shapefile covering most of Africa. I've made 0.1x0.1 grids using the make grid option from QGIS and now I want to link the grid_id to my point data. Below you will find a ...
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1answer
38 views

Cannot run “Create Fishnet” tool in ArcPy

I've been trying to run an ArcPy code which creates a fishnet for sampling. Everything in the code works fine, but when it gets to arcpy.CreateFishnet_management(), it stops running. I've already ...
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0answers
28 views

Turn a grid an place

I have a grid over a rasterlayer and a second a line .file. I want to place the grid paralell to the line shape or dock it on the shape file. I tried it with turning the grid manually, but it takes ...
0
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1answer
30 views

Make fishnet visible but not snappable [closed]

I'm currently using a polyline fishnet grid to use as a guide when labelling land features. For example, I aim to label 10 grids per day. An issue I have is that when creating my polygons they keep ...
2
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2answers
47 views

QGIS 3.12 print composer - how to rotate map but keep grid unrotated?

I am creating a map using QGIS 3.12 and wish to rotate the map and add a grid using print composer, but I want to keep the grid unrotated. Is this possible or does the grid only rotate with the map?
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0answers
55 views

Converting a 2x2km point grid to a coincident 1x1km grid

I needed to convert a 2x2km point grid (specifically the LUCAS grid) into a coincident 1x1km grid. Is there a "simple" way of doing this in QGIS?
0
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1answer
32 views

Getting polygons out of .shp

I have a shapefile with lines. In the attributes of the line shapefile I have known coordinates. I want to get polygons out of these points which reach to the next line. As a goal I want a grid out ...
2
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1answer
62 views

Vector grid id generation [duplicate]

I generated a grid with 300m spacing but the ids generated from top to bottom in sequential oder. How could I get in horizontal from left to right sequence.
1
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1answer
39 views

Rotate Data for Gridding

I have sample data that was collected in lines. I would like to rotate the data to North-South so that I can rasterize it, then back to the original NAD83 Zone Projection where it's situated at an ...
0
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1answer
39 views

How to display 1,000,000 fishnet polygons in ArcMap?

I am working on ArcMap. I have created a fishnet with 1,000,000 polygons for pixels of size 0.125 degree. I would like to display the map for a variable that varies across cells. I tried symbology and ...
0
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2answers
27 views

How to join maximum values from a polygons layer to other gridded polygons layer in QGIS?

I have two overlapping SHPs. One is with two noncontinous polygons - values 0 is blue and 1 is green. Now I have 9 meters grid for the same area, but I need to "fill" the grid with values from ...
0
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1answer
31 views

Non-random sampling of point vector layer in QGIS

I have a point vector layer with 47.000.000 points representing elevation. It is a regular grid with constant spacing. I aim for rasterization but it is very slow. I know how to do random sampling but ...
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0answers
7 views

Why would the Extract Multi to Points not extract values to all points when the raster and the point clearly overlay?

I have four rasters and a point feature that all live in the same file geodatabase and have the same CRS. The point feature covers a large area. See image below: The rasters which values I wish to ...
2
votes
1answer
69 views

How to calculate how many grid squares a line shapefile covers

I have a load of transect data (in the form of a line shapefile) covering a very large area (approx. 11,900km2) that has been split into 20m x 20m grid squares on QGIS using: "Vector -> Research ...
1
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1answer
41 views

Joining each grid cells with many records in QGIS

I have a grid (10 x 10 km) where each cell is identified by a code a shapefile, a point layer, with the year when each point was sampled as shown in the figure below. As you can see from the image ...
0
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0answers
43 views

Leaflet poor performance on pbf animation

I am trying to animate different tilesets for precipitation data on leaflet map. I create layers upfront for next and previous timestamps. I have done the similar logic using MapBox and animation and ...
0
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1answer
72 views

QGIS fishnet problem

I have create a grid in QGIS. But I don't have coordinates, I would like to sketch on the basis of Google satelitte, that uses Pseudo Mercator projection. I tried GRASS mkgrid, but something went ...
0
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1answer
32 views

Getting grid data to a CSV file

I have a road shapefile of a selected area of 1km x 1km created in QGIS. I have also been able to create a grid shapefile of 1m x 1m intervals over my area as below: - Is there a possibility to get ...
1
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1answer
200 views

Creating a Grid in QGIS of with 1meter intervals [duplicate]

I need to create a grid over my QGIS shapefile, with 1m intervals. I know the procedure of creating the grid; view -> decorations -> grid My question is, what is the x and y intervals that I need to ...
2
votes
1answer
85 views

Create within-country grids for multiple countries at once in Google Earth Engine

I have a dataset on countries in sub-Saharan Africa (which is set so that anybody can use it): var SSA = ee.FeatureCollection('users/salem043/Africa_Districts') .select("ADM0") I would like to ...
0
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1answer
28 views

Expanding existing point grid to cover larger area in ArcGIS Desktop

I am looking to expand the already existing point grid system to encompass the entire polygon pictured below without changing the existing point locations or label features. Is there a tool in ...
4
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3answers
87 views

Create a new grid layer from a CSV, given the four corner coordinates

I'm trying to add a new grid layer by importing it from a CVS file. In the CSV, each line represents a grid, and the coordinates of the four corners are given. Moreover, the grid contains its own ...
0
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0answers
37 views

Join attribute by location giving bigger results QGIS

I have created a grid over South Africa, each cell being 10 km x 10 km. In addition, I have a raster layer that has been polygonized, each polygon containing a population count. The total of these ...
0
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1answer
33 views

QGIS sum up polygon features inside grid

I have a grid with population points inside each of the individual cells. I've used the "join attributes by location" tool to join each population point to their respective cell. Now I'd like to sum ...
1
vote
1answer
67 views

Slow processing in ArcMap

I am working with the vector files: Landuse classification shapefile for a certain area with 4 landuse categories - builtup, vegetation, water and open spaces. (area bounds = 95sqkm). I classified a ...
1
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1answer
52 views

How to convert a QGIS Composer Grid to polygons

I really like the cartographic aesthetics of the QGIS 3.10 Composer Grid, especially the border created by using the "Zebra" style and "Fit Segment Length" option. Because of its design, I'd like to ...
2
votes
0answers
105 views

Point grid in QGIS

I'm working on a project that needs me to map out a point grid for drilling work. The grid needs to fall within an already created polygon and be spaced 30x35meters. I was able to overlay a pointgrid ...
0
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0answers
33 views

Create Fishnet issues with measurement distance

I am trying to create a regular soil sampling grid based upon digitised field extents. I had posted a previous question today relating to issues with coordinate systems and displaying the sample ...
3
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1answer
117 views

Counting MODIS burned area pixels inside a grid in GEE

I am using MCD64A1.006 MODIS Burned Area Monthly Global 500m product in GEE and trying to count the number of pixels with a value inside of each grid cell in a vector grid I created. // load MCD64A1 ...

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