Questions tagged [grids-graticules]

Grids and Graticules include reference grids, measured grids and graticules

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30 views

Create full British National Grid grid in R

I would like to recreate the entire British National Grid in R using sf. I am after the full coverage shown here: https://upload.wikimedia.org/wikipedia/commons/f/f5/Ordnance_Survey_National_Grid.svg (...
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How to convert grd files to GeoTIFF files?

I have a .grd annual daily gridded rainfall data file and a control file of the same and want to extract monthly values from the file in GeoTIFF format using grads. I am new to programming so please ...
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1answer
28 views

Save MapContent issue with latitude/longitude lines

All labels for longitude lines at bottom and latitude lines on left and right of the map look fine when viewed in JFrame like the one used in https://docs.geotools.org/latest/userguide/tutorial/...
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1answer
18 views

Issue with Grids in Project Manager in QGIS 3.12

I am new to QGIS having worked with ARC for a while. I am having issues with adding a grid to my project. I am using CRS ESPG:3587 WGS 84 / Pseudo-Mercator and noticed that the grid is showing the ...
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Converting point marker G-Econ data into categorized or graduated grid cells

My aim is to highlight differences between the two ethnic groups (Dinka and Nuer) in Sudan regarding their Gross Domestic Product/Gross Cell Product to explain the south sudanese civil war on basis of ...
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1answer
117 views

Setting proj parameters for Second World War military grid systems

I'm trying to georeference some WWII maps available at the University of Texas repository (e.g., example map). The problem is that these maps refer to an unknown proj system (at least for me) and I ...
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1answer
33 views

Need Dominion Land Survey (DLS) grids loaded into QGIS for province of Saskatchewan in Canada

I found a source that allows the download of a shapefile for the grid system for Alberta, but am still in need of the same thing for the entire Dominion Land Survey Grid, or just Saskatchewan. I'm ...
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50 views

Flow accumulation on grid in R

I would like to calculate the number of cells from gridded elevation data that drain into a particular cell. First, I calculate the flow direction by selecting the cell with the steepest slope from ...
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Randomly filtering points in unevenly distributed point dataset?

I have a vegetation plots dataset which has unduly high concentrations of plots in certain parts of the dataset. I want to even out the concentrations of points so that there is a more even ...
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1answer
39 views

How to extract attributes of polygons at specific points into new point layer in PostGIS?

I am not very practiced in PostGIS. However, my volume of data forces me to use it. I have a large polygon layer containing several million polygons and a grid layer that has a point every 10 meters ...
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18 views

How to impute country to a global population grid?

Have following gridded population data (available from the History Database of the Global Environment, HYDE) ftp://ftp.pbl.nl/../hyde/hyde3.1/hyde31_final/1980ad_pop.zip It looks like this: ncols ...
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1answer
122 views

Excess decimal points showing on QGIS layout grid

I am using QGIS 3.8.1. The intervals of my grid are 1.2cm and the labels are set at a 0.6cm offset so they are placed in the middle. I used the draw coordinates custom option to enter my own ...
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39 views

Raster Polygon Overlay Analysys

I have a fishnet polygon feature class and a land cover (40 categories) raster. Both cover a large area. I seek to: a) calculate the area of each land cover type category (40) inside of each Grid ...
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What is the difference between a N96 and N96e grid space?

Global land-use and meteorological raster datasets are often gridded using N96 or N96e grids. I suspect that they are slightly different but I cannot find information on how they differ. Both split ...
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18 views

Total number of cells on each MGRS grid level

I'm trying to figure out how MGRS grid looks like in a whole. I've already read wiki page and some articles but still didn't find the answer to my question. As I understand: level (100 × 100 km ...
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40 views

Grid spacing is not what it should be

I have a map of Ireland and I want to create a 10km x 10km grid over the whole country. I used the 'create grid' feature from the toolbox and put 10km as my horizontal and vertical spacing. However, ...
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1answer
22 views

Trying to create a map with co-ordinates

I'm trying to create a map with the co-ordinates for the location but if i select map units it creates black boxes in the corners of the map instead of a line of co-ordinates. If I used centimeters it ...
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1answer
28 views

Fill out irregular grid with polygons

I'm using QGIS 3.10.0 A Coruna. As you see in the picture, I have an unregular grid with some buildings on them. I would like to fill out all the other rectangles between the points with a polygon ...
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1answer
75 views

Map Graticule in UTM projections (openlayers)

I'd like to know if there is a way to display the Graticule labels on a different projection like UTM. Visit this link and search for EPSG: "31982" (UTM 22s SIRGAS2000) projection to understand the ...
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1answer
85 views

Graticule will not display in layout view

Problem: I am trying to create a graticule for a map in ArcMap 10.7.1. When I create the graticule and hit "apply", the graticule does not display in layout view or when I export the map. Steps to ...
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111 views

OpenLayer's graticule doesn't properly work

I am making a map of Krasnoyarskiy krai subject of Russia. I have defined a custom projection that should be used for this area using proj4 string. I need to show lat/long grid only for this territory....
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1answer
46 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 ...
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13 views

ArcGIS Pro - map series - grid - dynamic coordinate system

I have a map series with different coordinate systems for each map. Map series spatial reference is based on EPSG Code which is an attribute in the index layer so the coordinate systems of the maps ...
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58 views

Projection to create a grid in km

I am trying to create a 1km2 grid of Kenya but I'm struggling. I have changed the projection to EPSG:32337 but this makes Kenya about 10 metres long which is obviously not right and leads to an error ...
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46 views

How can I get township and range edge labels in QGIS 3.4.13-Madeira

I've created PLSS edge labels before with ESRI and older QGIS and don't remember this being all that hard, but for some reason I'm lost trying to get it done with the newer version. The PLSS data is ...
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22 views

Using S2 Geometry as a grid for earth-wide processings [closed]

I am looking at options concerning the processing of raster data (sentinel, landsat, etc.) at a continent scale (for example, north america and south america), with respect to discrete global grid ...
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1answer
71 views

QGIS 3.4.12 print composer, cm distance

In print composer, I would like to syncronize the scale of the map with the Grid scale. For example, in print composer I am making a map in 1/1000 scale, so I go to grid,and insert "map units" x=100 y=...
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31 views

QGIS Graticule at Print Layout starting at from 0

I would like to add a graticule with coordinates to my map. However, when I add a new grid and modify it the graticule appears but it always starts at 0 and not from its real value. How could I fix ...
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0answers
200 views

Create a grid in R, change in cell size displaces position of grid

I'm writing R script which will allow users to overlay a grid on their data in a new projection with the option of defining the size of the grid cell. This seems to work fine, however, when I plot two ...
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2answers
295 views

How to create an hexagonal grid of regular hexagons of definite area anywhere on the globe, using shapely?

I have a geojson file describing a polygon. I want to create an hexagonal grid on top of this polygon, with regular hexagons of area 90000 square meters. Right now, I can either guarantee the area, ...
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0answers
51 views

What projection to use to create aligned GB and Ireland OS Grid map

I would like to create a map like the following: It displays the 100km grid square systems used by both UK and Ireland. I have created the 100km grid squares using the TomBio tools plug in, however,...
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31 views

Electrical Distribution - ArcGIS

I am currently developing a project for which I need to make the preliminary design of the electricity distribution network topology for a population. For this I have the location of the consumers (...
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1answer
38 views

QGIS export DEM to SAGA grid - no coordinate system

I have created a DEM using survey points from a GNSS system. Works like a charm so far. I can extract elevation lines etc. However, when I export it as a SAGA grid it looses the coordinate system. I ...
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1answer
54 views

Pyproj projection 0.5 meter differnce from official results (IGD05/12,IG05/12) Israel Grid

I'm trying to use those parameters and I receive a difference of ~0.5m ALON and BSHM APN Points: coords = [ (dms2rad([31,42,28.5694]), dms2rad([34,36,23.92196]), 55.671), (dms2rad([32,46,44....
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2answers
49 views

GPS coordinate of center of a grid

I am working on a project to identify weeds. I used the grid to separate the area. Each cell is marked weed or no weed. I would like to get the GPS of the center of each cell with a weed in it. Does ...
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31 views

Measured grid labeling in ArcMap

Can the grid labels be written along the ends of the grid lines within the data box without Cartography tools and with E / N at the end? I've been playing with offsets and other options. The only ...
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1answer
260 views

Grid to Matrix in QGIS

I generated a rectangular grid using the vector tools available and added a attribute in this grade (sum of lentghs of a line). Now I want to convert this rectangular grid to a matrix (if possible in ...
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1answer
199 views

QGIS Print Layout - Rotation of Grid Coordinates to match map rotation

I have a layout in QGIS where 3 map views are rotated to 35 deg. The grids automatically rotate to match the maps rotation, however the labels do not. Does anyone know a way to make the coordinate ...
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38 views

Equal geographic coordinate grid intervals

Is there a way of creating an equal geographic coordinate grid interval in QGIS print composer? I tried editing the interval and offset but it does not give equal interval like 121°14'0" then 121°14'...
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1answer
141 views

QGIS, Grid, and CRS [closed]

I'm totally lost after some manipulations to add a grid in QGIS. The projection of my project is WGS84 3857. It's a map of UK. I tried View>Decorations>Grid option. Everytime I get a perfect squared ...
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0answers
28 views

Is there a way to automatically prevent the QGIS print/layout composer from letting grid labels overlap?

I am currently using QGIS 3.6.1 and have just discovered the magic of the Atlas functionalities. Unfortunately now that almost everything is automated I need to find an automated way for QGIS to know ...
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1answer
167 views

Setting the correct grids in QGIS 3.8 map composer?

My area lies between E 92.25-92.50 and N 24.50-24.75. When I tried to draw the coordinates on QGIS 3.8 map composer, it showed the co ordinates as E 8.00-E 24.000 and N 0.000-16.000. I used the ...
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0answers
179 views

Map gridded rainfall data to lat-longs and extract daily rainfall data? [closed]

My objective is to create a dataset, wherein for certain locations (lat-longs) I need to report daily rainfall from 1950 to 2017. Rainfall data source: Indian Meteorological Department (IMD) daily ...
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0answers
40 views

Stop Grid Coordinates Overlapping in Print Layout

I have created some data driven pages in the print layout (controlled by atlas) using QGIS 3.4. The grid spacing is set to a fixed interval (20m). This works fine until one of the pages is located in ...
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49 views

R gdal_grid interpolation results in null values for elevation

I am trying to grid point cloud data. I created a csv with coordinates x,y and elevation z-values. The first lines of the .csv file look like this: "X", "Y", "Z" 666578.24179169,5747856.3361029,-0....
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1answer
75 views

Dynamic oriented grid using QGIS 3 layout view (grid borders parallel to paper borders)

I use QGIS 3 to create maps with coordinate grid. Often, when I change the extent of a map, my coordinate grid tilts and becomes not parallel with the paper borders. This looks very awful, and I have ...
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0answers
72 views

Custom formatting coordinate grid using QGIS

I am custom formatting my coordinate grid. Is there a way to change the following formula so that the output comes with a decimal and suffix? substr(@grid_number, length(@grid_number) -6,5) The ...
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0answers
74 views

How to get a grid 500m x 500m on map composer

I need to make a map on map composer, with a grid layed on it which is 500m x 500m. however the only way I could find of doing this was by adding a grid to my map, found within item properties. This ...
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0answers
31 views

Labeling reference grid at centroid in ArcGIS Pro?

In ArcGIS Pro 2.3, is there a way to label the centre of the new reference grids with the grids name (as in picture below), or if there is no way to directly label, is there any method of turning the ...
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0answers
23 views

Automating Cluster Assignment of Grid Squares?

I'm using MapInfo. I have a grid layer which has results assigned to each grid square. I'm wanting to automatically assign cluster references using a minesweeper style approach, i.e. where grid ...

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