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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0answers
28 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 ...
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0answers
19 views

How can I get the latitude and longitude bounds of a tile set from MapTiler using leaflet.vectorgrid?

I have a leaflet map that loads a vector tile set from Maptiler. I would like the map to fit the bounds of the tile set's content when the user selects the overlay check box to display this tile set. ...
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24 views

Optimizing printing using QGIS [closed]

My goal is to optimize my plan impression. I explain to be able to print plans on several pages, I make a grid and each box corresponds to a part of plans. The problem is that it does not optimize ...
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24 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
30 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 ...
3
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0answers
41 views

QGIS refFunctions override maximum amount of features

A have a polygongrid on a 1x1m spacing. I have multiple XYZ files also on a 1x1 grid. I would like to write the Z-value of the xyz-files (is in geometry and in the DB) to the polygongrid if the XY of ...
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0answers
24 views

SAGA error running “Raster values to points” (“shapes_grid” library)

I am using QGIS 3.10 and I want to generate a "fishnet" shape coincident with the pixels in a raster. I've done this before (in QGIS 3.4) using the "Raster values to points" SAGA tool ("shapes_grid" ...
2
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1answer
68 views

How to create a GRID with customized Labels in QGIS

I would like to know how can I create a GRID layer with customized labels as you can see in the image below: I have searched this topic here: Creating indexed vector grid in QGIS? QGIS Python ...
3
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1answer
68 views

QGIS under measuring distances

I want to create some transects and a grid with specific lengths, but I realized Qgis is under measuring distances. For the transects I used "Advanced digitizing" (100m lines) and for the grid I used "...
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1answer
64 views

Grid polygon generation by converting meter to degree using Python

When given a shapefile as below as an Input, I would like to generate a 100x100 meter polygon grid using python. I went through Creating a regular polygon grid over a spatial extent, rotated by a ...
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1answer
27 views

ArcGIS align grid of 10km squares with grid of 1km squares

I have a pre existing layer of 1km x 1km grid squares, which is aligned with the 10km squares of the British National Grid: I want to create another 10km x 10km square grid on top to highlight the ...
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20 views

Populating sample units inside polygon using ArcMap

A big part of my job currently is drawing out sample units that are roughly 2500 square ft for inspection and are all located within a polygon for the Section. I made a very quick example below. The ...
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0answers
16 views

Creating dynamic overlay grid in ArcMap or ArcGIS Pro?

I have a shapefile of multiple polygon features corresponding to geographic regions that vary in area. The task is to create a dynamic grid over each polygon, with the size of the squares for each ...
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0answers
50 views

Rotating vector grid in QGIS 3.10 vs 3.8

Just wondering if anyone else has had an issue with vector rotation via the advanced editing tools in 3.10? I have a vertical grid overlaying Vancouver Island that I had tried to rotate using the ...
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0answers
20 views

Create grid with a prespecified number of cells inside a shapefile with R

I need to create a grid inside a shapefile with a fixed the number of cells n (inside the shapefile). I tried a few stuff see bellow but nothing worked so far. Any ideas? The data shapefile can be ...
1
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1answer
38 views

Creating grid index (fishnet) features with indexing according to columns

I'm working with west to east river features and I need to index a grid using only numbers and accordinly to columns and not lines. The grid index features tool gives me this numerical sequence of ...
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0answers
36 views

Generating hexagon (tessellation) fishnet inside hexagon (tesellation) fishnet using ArcGIS Pro

I'd like to create a fishnet or hexagons inside a subset area of hexagons? Basically I want a large cell size for my rural area and a small cell size for the urban area. This is the tool I've used to ...
4
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1answer
124 views

QGIS NTv2_SN.gsb

I want to integrate the NTv2_SN.gsb grid in QIGS. I have a dataset in CRS 3149 and want to transform into CRS 2588. Therefor I want to integrate the NTv2_SN.gsb into QGIS. But I have some problems. I ...
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0answers
54 views

Displaying ArcGIS Online vector tile layer in Leaflet using Leaflet.VectorGrid Not displaying correctly

I have created a Vector Tile Package using ArcGIS Pro and uploaded it to ArcGIS Online. I am trying to load the layer into a leaflet map using the Leaflet.VectorGrid plugin. It successfully loads but ...
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0answers
26 views

Obtaining least number of grids (polygons) covering a separate polygon while the grids are overlapping

I have grids as polygons where the grids are overlapping. I want list of grids covering a separate polygon. The image below demonstrate the problem. The red lines are the edges of the grids and the ...
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1answer
47 views

Using ModelBuilder to create different layers by selecting all attributes that intersect each grid index cells

I have a large grid index layer and point layer. I want to use ModelBuilder that will select each cell in the grid index layer, then perform a select by location to select all the points within each ...
2
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2answers
87 views

Add Excel-style row_number and column_name attributes to a Grid Index in ArcGIS [closed]

After using the Grid Index Feature tool it creates a grid polygon layer. The resulting feature class contains a field called [PageName], which displays like A1, A2, A3...etc in each row starting from ...
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2answers
388 views

Creating grid following points in QGIS?

I am working with a set of coordinates from a csv file that creates a grid (of points) in QGIS. There is an id attribute along with the X and Y coordinates for each point. I need to work with a ...
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0answers
22 views

Creating rotated local grid/fishnet in QGIS with known AMG origin & rotation angle?

I have a local grid with known origin that is in AMG (metres) and a rotation angle. How do I establish that grid so that it can be projected into known CRS eg GDA94/ MGA Zone projection? I located ...
2
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1answer
48 views

How to create polygons layer from datasheet in QGIS

I would like to create a polygon shp file from a large dataset. The header looks like this: "Name MINx MAXx MINy MAXy" I expect the layer to look like a grid.
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0answers
15 views

Split height data based upon grid? (Same as Create Grid, Intersection, Split Data for Vector)

I have vector data for a large area that I have split into 2km x 2km layers using Create Grid, Intersection, and split, within the vector menu. I've downloaded STRM data for the whole area. I'd like ...
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0answers
34 views

Using interactive inputs to Create Fishnet using ModelBuilder?

I'm creating a fully automatic tool in ModelBuilder, and have a problem with the Fishnet function. The tool should work with different files, and the user only needs to choose a specific txt file (...
1
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1answer
58 views

Create fake clustered raster data in ArcGIS [closed]

I'd like to create several polygon grids with fake species occurrence (see example image) where each grid cell has a random value between 0 and 5 but high and low values cluster in certain areas as ...
2
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1answer
42 views

How to get the type of the largest polygon inside a grid cell?

(1) I have a vector grid layer. (2) I have a multipolygon layer. Each polygon has a specific type (in this case a vegatation type) Now I want to get as an output the grid layer where each cell ...
0
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1answer
125 views

Draw a spatial grid with the lat/longs at the center of the grid using R

I looked through multiple posts on the same, and most of them end up drawing a grid connnecting the points or a grid connecting the bounding box of the coordinates. I need a grid with each of these ...
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1answer
58 views

Dividing country into maps of scale 1:25000 (metres)?

I want to divide a country into a grid of maps that will be of 1:25000 scale. I am not sure how to approach this. Create fishnet seems like a good ending point. I have some old maps of the given scale....
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2answers
42 views

Check if two different class points fall within the same cell of a grid?

I am very new to R and GIS and statistics. I'm trying to find out if two set of points of different class (ie. species) that I have are aggregated or seggregated. For that I need to randomize the ...
2
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1answer
83 views

Selecting points within fishnet grid cell with criteria of at least 3 unique values using ArcGIS Desktop?

My goal is to create a raster from points with values based on at least 3 unique IDs within a cell. Cells that had fewer than 3 points with unique IDs will have value NA. See below for clarification. ...
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0answers
23 views

Create a grid in QGIS [duplicate]

I have GIS points (x, y data) for every minute over a landscape. If I load them up as a CSV into QGIS they all show up as points, which you would expect. However, what I would like to do is use these ...
1
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1answer
53 views

Dividing up vector grid and scoring cells using QGIS?

I have a map of an area, have created a vector grid over this, and want to score different areas of the map by risk (high risk, medium risk, low risk), by scoring each cell. I want to define these ...
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0answers
56 views

Population calculation per grid using QGIS?

I have a ward map of a city along with the population in each ward. I have divided the map into 1 km* 1 km grids. How do I calculate the population per grid, taking into account that there can be ...
2
votes
1answer
205 views

Access geometry.coordinates of sliced vector grid

I am trying to represent LineString GeoJSON as vector tile layer using Leaflet.VectorGrid. But i need to do some interactive by clicking on vector tile layer. but this vector tile layer has came with ...
2
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3answers
84 views

Sum up values of neighboring polygons in ArcGIS

My question is very similar to Summing up values of neighbouring polygons using QGIS?. However, I would like to be able to perform the analysis within ArcGIS Desktop if possible. What I would like to ...
1
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0answers
23 views

Calculating areas and joining attributes between overlapping features

I am working with QGIS 3.4.8 and Python 3.6.8 on OSX El Capitan 10.11.6. I have two shapefilea, one which is a grid of cells (each cell a feature) and the other one which is urban settlements as ...
0
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0answers
34 views

Selecting grid squares (polygons) that intersect with a raster

I have a raster dataset that I have exported a subset from using attribute values (so the extract has areas where there are no pixels). I also have a fishnet grid (polygons) and I want to select the ...
1
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2answers
88 views

Shanon diversity index in QGIS

I'm trying to calculate Shannon diversity index for trees in a urban context. I have the following attribute table which I got joining attributes by location between a vector points and a vector grid. ...
1
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0answers
25 views

Fitting a grid to a research plot

I am trying to create a grid to use for zonal stats for a ag research plot. I have created some grids and rotated them and am getting decent fittings but I feel that there must be some other better ...
0
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1answer
35 views

How is IDW raster formed?

IDW algorithm says that it makes a grid and assigns value to each point in grid depending on the distance of separation. From this definition, it looks like the output is set of equally spaced points. ...
3
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1answer
120 views

Vector grid in QGIS3 - Can I change the order of row number?

When creating a grid (e.g. dx=15,dy=20) in GQIS 3 the first cell begins from the upper left corner and continues to the bottom of the grid as shown in the picture below. Is there any way to define ...
2
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1answer
57 views

Merging two neighboring cells in grid of type SpatialPolygonsDataFrame?

I have a grid of type SpatialPolygonsDataFrame (each cell has a set of data attributes). I want to merge each cell which has a surface < X with one of its neighbours. An example is depicted in the ...
1
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0answers
129 views

QGIS: creating a grid over a canvas with 50m by 50m edges

I know I can overlay a grid on my canvas by going to view -> decorations -> grid. However, I want to overlay a box grid that is 50 by 50 meters. Is there a way to specify this? CRS: WGS 84 ...
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1answer
146 views

Creating 100m^2 grid automatically using QGIS?

I need help on how to create a grid structure over my data set with each box being 100m^2. That isn't manually doing it so I can calculate the features within each box?
0
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1answer
29 views

Drawing polygons with specific heights and widths in ArcGIS Desktop?

I have a dataset that defines my plot corners. Within each plot, there are a number of subplots, each with specific dimensions. I need to create polygon shapefiles for each of the subplots. Is there ...
0
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0answers
101 views

Create a SVG layer for Leaflet from GeoJSON

I had a large GeoJSON and I display it with vectorgrid plugin for Leaflet. I want to add another layer based on the main GeoJSON with only the name of the building and display it in vector format (not ...
1
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0answers
95 views

Create 3mx3m Vector Grid on Worldmap with equirectangular projection in QGIS [closed]

I would like to create a 3meter x 3meter Raster Grid on a Worldmap in QGIS. I am fairly new to the whole topic but I have found out that the equirectangular projection should be the most accurate, ...