Questions tagged [grids-graticules]

Grids and Graticules include reference grids, measured grids and graticules

Filter by
Sorted by
Tagged with
1
vote
0answers
10 views

Generate essential grid covering polygon with OGR & Python

I'm trying to come up with a method to recreate the type of grid shown below. The grid is using a custom projection measured in meters. each cell is 256 x 256 meters. Ideally I'd like to easily use ...
0
votes
1answer
45 views

0…0.kriging error messages, grid file problem ? (automap, gstat)

I am trying to conduct kriging of variable called percent in South Africa. head(LL12) Location Longitude Latitude percent 1 L1 16.48476 -28.60737 1.0000000 2 L3 16....
1
vote
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 (...
0
votes
0answers
26 views

Intersecting large shapefiles onto a grid in QGIS

I have 21 separate shapefiles containing data for Ireland as various polygons on QGIS 3.10. I'm trying to intersect each shapefile onto a 250m2 grid of Ireland so that I'll have 21 separate shapefiles ...
0
votes
0answers
29 views

Is there a QGIS plugin to drop pins on a repeating pattern in a raster?

I'm looking for a QGIS plugin that drops pins on a repeating pattern in an imperfect raster grid, for example a satellite image. Ideally, one would select a polygon to drop within, a raster, give it ...
2
votes
3answers
81 views

Adding meridians and parallels on world map in QGIS

I'm working on a world map in which I'm using as overlapped layers Bing Aerial, The natural Earth Vector (from natural earth data.com), and also a NASA night view because it's just nice! I would like ...
0
votes
0answers
20 views

Using python to export map with grids? [duplicate]

I am new to Python and I am using the Python console in QGIS 3.10 to make the coordinate grid on a vector layer. I had lots of vector files which are basically square shaped of 500 meters but all are ...
3
votes
1answer
69 views

Creating grid annotations in QGIS

How to make grid annotations like shown below in QGIS (v3.x)? Sequential alphanumeric characters in the centre of grid lines. These are widely used in tourist maps.
0
votes
0answers
56 views

Use PyQGIS to make grid on a vector file

I am new to Python and I am using the Python console in QGIS 3.10 to make the coordinate grid on a vector layer. I had lots of vector files which are basically square shaped of 500 meters but all are ...
0
votes
0answers
32 views

MapComposer not found Error

I was working on an example provided in the pyqgis developer cookbook and performed the code in the QGIS version 2.8.9 but i am getting the following error: ImportError: No module named MapComposer ...
1
vote
2answers
47 views

Make numbered grid overlay with different colours showing the frequency of data in QGIS [closed]

I would like to create a grid overlay. Each grid cell should be numbered and showing frequency of some data using different colours. The grid is over a shapefile of an area.
1
vote
0answers
18 views

Drawing appropriately coordinate grids [duplicate]

I am having an issue while trying to show the coordinates in the print layout in QGIS. While the coordinate format is in decimal and suffix, it is ok. I need the format in degree, minutes, and suffix....
0
votes
1answer
59 views

Create grid of lat long in polygon at 1 km

I want all hotel list in that polygon, so I am using the Google Place API to fetch hotel info. But Google Place gives only 60 records limit, so thought to get all lat long with 1 km distance in that ...
0
votes
0answers
31 views

Exporting grid vector from QGIS to KML gives wrong coordinates

A grid vector was created over the map layer (EPSG:32636) and saved as with CSR EPSG:32636. Then when I export it as KML, it the grid appears in a different country (Congo rather than Lebanon). I ...
1
vote
0answers
49 views

QGIS Print Layout Grid Reference Numeric Format

Using QGIS3.14 The default style of grid labels is single size digits, e.g. 251000E and 5897000N. I wish to show the grid labels in a format similar to Ordnance Survey with the 51 of the easting and ...
3
votes
1answer
60 views

Identifying grid system in Canada

I'm trying to identify this grid system that consists of two letter followed by two numbers. If it helps I know GU37 is defined by the following vertices: Lat (North) Lng (West) 1 48° 30' 00"...
1
vote
1answer
82 views

Which of XYZM-coordinates match the result of grids algorithm in QGIS? [closed]

When you create a grid in QGIS, in the attribute table for each square, you have a corresponding column left, right, top, bottom in coordinates. Which of these four correspond to the X, Y, Z, M ...
0
votes
2answers
41 views

Universal grid 5X5 km

I'm looking for a universal world grid of 5X5 km or 10X10 kms. Is there any known reference in place? And is it possible to get the data ?
2
votes
1answer
32 views

QGIS not providing accurate grid lines on exported map

When I apply a grid to my map in the QGIS 'Layout Manager', the grid lines seem to begin from 0.00000 on the x/y axes, opposed to the accurate grid coords. As seen here in my exported map: Here are ...
0
votes
1answer
38 views

Calculating Grid Convergence

When ESRI tool "Calculate Grid Convergence Angle (Cartography)" is used to calculate line bearing or azimuth, is the bearing referenced to True North or Grid North?
0
votes
0answers
11 views

Extracting number and attributes of points in a GRID in ArcGIS

I will be thankful if someone can help in extracting the number of points with attributes using the grids. For example I want to know number of species points in a grid with attributes. I have ArcGIS ...
0
votes
1answer
41 views

How to delete groups of grid files based on pixel cluster size (under 10)?

I am new to QGIS, and I am currently using flood modeller to produce a series of surface water maps. Once the data is ran, I get a series of 10m2 grid tiles with varying Z flood Values. We are only ...
3
votes
1answer
166 views

Raster brick from raster masks by sectors (R)

The goal is to divide a raster file into quadrants in order to make some computation in each. I'd like to split the raster and create a raster brick with those parts. I don't need to get perfect clips ...
0
votes
0answers
69 views

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 ...
1
vote
1answer
33 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/...
0
votes
1answer
34 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 ...
0
votes
0answers
16 views

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 ...
5
votes
1answer
134 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 ...
0
votes
1answer
57 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 ...
1
vote
0answers
97 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 ...
2
votes
0answers
23 views

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 ...
1
vote
1answer
46 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 ...
1
vote
0answers
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 ...
3
votes
1answer
174 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 ...
1
vote
0answers
40 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 ...
1
vote
0answers
23 views

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 ...
1
vote
0answers
19 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 ...
0
votes
0answers
44 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, ...
0
votes
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 ...
0
votes
1answer
30 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 ...
2
votes
1answer
139 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 ...
1
vote
2answers
144 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 ...
2
votes
0answers
167 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....
1
vote
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 ...
0
votes
0answers
16 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 ...
0
votes
0answers
88 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 ...
1
vote
0answers
59 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 ...
1
vote
0answers
28 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 ...
0
votes
1answer
96 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=...
1
vote
0answers
36 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 ...

1
2 3 4 5
7