Questions tagged [grids-graticules]
Grids and Graticules include reference grids, measured grids and graticules
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saga_cmd - process never ends
I am trying to use saga_cmd with the debian 11 (package v7.3.0) to create an interpolation process.
With Qgis, the process take around 1 minute and works fine, but the process seems never ends with ...
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How to Label Every Corner of a Polygon Layer
I have a township and range polygon layer on my map and I want the section number to be labeled in every corner (4 labels per feature). I've gotten the labels to generally place in corners by using ...
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What exactly is a grid point? I am trying interpret methods for replication
These methods describe how the researcher built a model training dataset for the purpose of wetland prediction using points as training samples. My goal is to understand how these points align with ...
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Making gridded map where each grid cell shows the share of points of certain category in QGIS
So, I have a dataset of many points across Europe. For illustration purposes see this image below:
Each of these points has one of four categories attached to it, so the dataset I am working with has ...
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Setting decimal places in coordinate-grid in QGIS Print Layout
I have a grid with coordinates on my map in the Print Layout of QGIS. But in one map I have decimal coordinates that look like this:
12.500°E / 52.300°N
And sometimes they look like this:
12°E / 52°...
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GeoTools - Add new operation with CoverageProcessing
I follow the Coverage/Grid tutorial, and try to create a new Operation to calculate diff between two TIFF files (MNT data). As explained here, it seems possible :
https://docs.geotools.org/latest/...
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Customise ArcMap Grid Labels Layout View
I am showing topographic profile of the route. In the Arcmap 10.7 layout view, route profile is running from right to left. So the chainage zero starts from right and increases towards left.
To show ...
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How to calculate the average elevation within a certain radius around a grid cell and apply the average to the grid cell in QGIS?
I have two layers in QGIS: a raster layer containing elevation, and a grid cell layer (polygon) containing 1km by 1km squares.
I am trying to create a new layer where the elevation of each 1km by 1km ...
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Python: interpolate dataset to create a global map
I have a NetCDF dataset (this) with values for the world's oceans. The measurements are in the form of unevenly spaced points:
Now I want to extract some values at specific locations. My problem is, ...
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Drawing lat, lon grid over UTM project not working in QGIS 3.32
Goal
I want to draw both an UTM coordinate grid as well as a geographic coordinates grid (lat, lon) on a map in the QGIS print layout window as shown here.
Setup
GeoTIFF layers with tfw files as .zip ...
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1km Grid misaligned. QGIS
I have downloaded a 1km grid shapefile specifically for Cyprus. When I add this layer, it is severely misaligned i.e. the grid lines are about 30degrees off north. I guess this is a projection issue?...
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Join a raster file with grid data and a CSV file
I am a relatively new user of QGIS and encoutered a first major problem.
I am working with this dataset that converts the available geocoordinates into the European standard ETRS89-LAEA.This is a grid ...
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Change a shapefile with grids to a 2D grid world for RL
I have a shapefile with multiple grids as polygons. I want to convert this into a 2D gridworld so that I can train an RL agent. I tried different libraries but I am stuck in the part of brain storming....
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Creating script to automatically create virtual layers with alphanumeric labels for shapefile grids in QGIS
I have many grids in shapefile format. Adding alphanumeric labels to them can be done through using a virtual layer SQL query as found in this thread: Creating GRID with customized labels in QGIS, ...
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Creating a grid of 1km x 1km
I would like to create a grid for 1km x 1km in one area from a satellite view map in JAPAN using EPSG: 6668 but this error always shows up " Horizontal spacing is too large for the covered area&...
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Is there a easy way to get the Grid convergence in QGIS?
Is there an easy way to get the angular difference between Grid North & True North in QGIS?
This is how I do it:
Make a map in print composer
Set the map CRS to whatever "WGS 84 / UTM zone&...
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ArcGIS Pro - How to put grid coordinates on two different lines in layout?
I'm new to ArcGIS Pro and I am a bit confused on how to add a customised coordinate grid in layout.
I can add a default grid, but I cant find any way to customise it.
I want to create a grid Like this
...
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Transforming lat/lon from displaced-pole grid to regular WGS84 lat/lon
I previously shared my problem on StackOverflow (as Incorrect or shifted longitude in netCDF data, how to fix?), but I was pointed here, because my question is not really about coding, but more about ...
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Stopping graticule labels from overlapping edges using ArcMap
I am using ArcMap.
Every time I make a layout I find myself having to convert the graticule to graphics and then delete the edge coordinate labels for one of the axis (since they overlap with each ...
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Clip grid to extent of map in QGIS in Layout View
In the layout view (QGIS), I selected the rectangle in the add shape to clip my image (map). However, when overlaying the grid, the edges of the grid extend beyond the clipped image. (appears to cover ...
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How to create point-centered cells grid with geocube
I want to create a tiff file starting from a numpy array which contains temperature data points in the format lat,lon,T2
My data array (the columns contain respectively cell number,temperature,lon,lat)...
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Reprojection from EPSG:3857 to EPSG:31468 in deegree
I have source data in EPSG:3857 that is shifted approximately 20 KM north when reprojected to EPSG:31468 in deegree version 3.4.17 and I am trying to determine the cause.
I am wondering if deegree may ...
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QGIS - How to put Grid coordinates on two separate lines
Im making a map & I want to put the grid coordinates on two lines like this:
I cant seem to find any option to do such a thing in the QGIS layout composer.
Anyone have a suggestion on how I can ...
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3D NetCDF data visualization in IDV
I am using Unidata IDV (Integrated Data Viewer) to visualize geospatial data. The data is in NetCDF format and the metadata as such:
netcdf tn {
dimensions:
ansi = 5 ;
plev = 3 ;
Lat = 160 ...
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36
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Turn off mesh layer in ArcGIS Pro 3D Scene
I was working with a profile view of an elevation surface in a local scene, and I accidentally pressed something that made a mesh appear at a constant elevation in the scene. It looks like a grid ...
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What is LIS 0.25 degree grid used by GLAM project
I am interested in finding the grid system called LIS 0.25 degree used by GLAM project at https://glam1.gsfc.nasa.gov/. LIS seems to be the Land Information System https://lis.gsfc.nasa.gov/ however ...
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How to count features from multiple different layers in a grid in ArcGIS Pro 3.1?
The multiple features (points and polygons) are all a toxic chemical from different sources. The grid was created using the 'Grid Index features', so it is a polygon. Some grid cells have no features, ...
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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,...
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Assign grid squares to polygons that most contain them
I have a featureclass that is a grid of the countries of the world (88,110 squares).
I am trying to assign all the grid cells to the country that each cell MOST contains (from a shapefile of country ...
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Concatenation of commands in SAGA grid calc
My goal is to mask pixels with chosen value, for example if g1 is equal to x1,x2,x3 the resulting pixel has to be set to 1 otherwise to 0.
Trough grid calculator I've tried this command:
eq(g1, (x1 or ...
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How can I create a grid overlay that accounts for feature density instead of map unit area?
I am working with the below spatial data (each point does contain relevant attribute information). I need to be able to audit these data for completeness and accuracy against the associated data from ...
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QGIS layout, split grid coordinates from A to Z
I have been using the layout manager to make coordinates for this map. I am fairly new to QGIS so my knowledge is a little limited on how to do this.
I have used this code
if ( @grid_axis = 'y' ,
...
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127
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Straight lines appearing on print layout for ortho projection
I've created an orthographic projection map, and have added it to a print layout. When I then add a lat/lon grid at 10 degree intervals I get straight lines across the image as well as the curved ones ...
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Why does the right side coordinate does not appear?
I was working on QGIS 3.28 and the CRS is WGS 1984 Web Mercator. Apparently my right side coordinate doesn't appear in scale 1:750.000.
But it appears when I change the scale to 1:2.000.000 or above.
...
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Automatic / Parametric Grid generation across multiple polygons in QGIS
I have a following problem:
I have a layer with numerous polygons inside (Over 400). I need to generate grids inside every polygon.
When using the Grid process over a layer, the generated grid covers ...
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Reproject raster from rectilinear LCC to rectilinear GK
I have many climate raster (netcdf) in a rectilinear grid in LCC projection (EPSG 3034) and I want to reproject it with python to a local Gauß Kryger projection (31467).
Reprojecting every raster ...
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Setting correct options for grid using EPSG 3004 in QGIS 3.10?
I would like to produce in QGIS a layout with the grid.
My project is based on EPSG 3004.
I manage to use the grid tool until a certain point, because the coordinates seem very messy.
What can I do in ...
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When I add a grid "Layout" the units don't match with my map's
When I add a Grid in Layout and select "Map units" and Interval the units still don't match
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ArcPy changing scalebar and grid parameters
I'm trying to use ArcPy in ArcMap, so Python 2.7, to automate the basics for the maps I make on a daily basis. Rather than having myself setout certain elements I want Python via the ArcMap API to do ...
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Adaptive grid to balance sample density [closed]
I have been following this tutorial https://james-brennan.github.io/posts/fast_gridding_geopandas/ in order to create a grid on a geographical area and to assign labels to each point.
I was curious ...
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How to show pixel boundaries of a given raster in QGIS?
The Norwegian Meterological Institute provides historical weather data. I download one of these .nc files:
curl https://thredds.met.no/thredds/fileServer/ngcd/version_22.09/RR/type2/2022/08/...
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Vertical grid shift with PROJ 9
I want to perform a vertical grid shift using PROJ 9.I have never used PROJ syntax and I am having some issues to have it right.
I have checked documentation and this previous post from which I got a ...
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Creating an irregular point grid with provided row and column numbers in PostGIS
I am looking to create an irregular grid of points via PostGIS, using the four provided corner (point) coordinates, and number of point-rows, and point-columns.
Four corners may or may not be ...
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Create a grid for more than one country in R
Some time ago I posted my own answer to create a grid inside a country to be used in kriging interpolation:
0........0.kriging error messages, grid file problem ? (automap, gstat)
This grid was for ...
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1
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313
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QGIS Map Composer frame to show numbers and letters [duplicate]
I'm trying to create a tactical burn plan map using QGIS. 3.10.3. It needs to be able to be used by lay people to communicate where features are on the map.
To do so I need the map frame to show ...
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3
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513
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Adding Lat/Long Coordinates to Frame in Print Layout
I am still learning how to use QGIS: I am making a map of a location in Antarctica, so I am using WGS 84/Antarctic Polar Stereographic coordinates (EPSG:3031). I have put the map into a print layout ...
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Creating fishnet based on DMS Coordinates
I am trying to create a random sampling map of an ocean area. To do this, I would like to create cells that are 1' x 1' in size (one minute by one minute in DMS). My map is using WGS 1984 Web Mercator ...
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QGIS grid doesn't fit
I downloaded the German 1km grid and also create a 100m grid with the same EPSG code
EPSG:25832 - ETRS89 / UTM zone 32N
but the created grid doesnt have the same coordinates. Why did this happen?
...
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ArcPy GridIndexFeature doesn't calculate square Grids - But using the tool in ArcGIS Pro desktop it does
I am currently trying to create Grids for several counties in my country.
Therefore I wrote a Python script using ArcPy and the GridIndexFeatures tool.
I want a 1000x1000 Meters Grid. If I am using ...
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Retrieve scale-value of a specific map in specific print-layout for using this scale in model-builder
I made a model with the model-builder which create a grid with its height- and width-size dependend on the size of a certain map in a certain print-layout. It allready works fine.
But that for I need ...
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