Questions tagged [alignment]

The property of two different things being coincident or making them so.

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Generating orthomosaic from DEM in Metashape

I'm using Metashape to make a point cloud from georeferenced drone images using the basic workflow (Align photos -> Build Point Cloud). I then export that and align it to a LiDAR cloud we have from ...
waiiana's user avatar
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2 votes
1 answer
114 views

Aligning two orthophotos with Metashape

I am working in Metashape Version 2.0.З. I have very basic skills. I have two terrain survey results taken by an unknown UAV (the same UAV was used) in different years without reference points on the ...
Comrade Che's user avatar
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Polygon grid and raster layer do not align R

I noticed that polygons and raster cells are not perfectly aligned. Why the border of the cells and the colors do not align perfectly? There is a little misalignment (the colors do not change exactly ...
baccione's user avatar
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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?...
Andy's user avatar
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83 views

QGIS toolbar aligned to the right

Toolbars and menus are aligned to the right in QGIS 3.32. In version 3.28 it is ok and aligned to the left.
Yossi Pariente's user avatar
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35 views

Align the points in polygon

I have two datasets consits of building footprints and point data. Points are within the footprint but they are scattered. Is there any tool to align them perfectly within the polygon as pattern. ...
Bruno B's user avatar
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1 vote
1 answer
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Move point data to the nearest polygon [closed]

I have two datasets, one is building footprint dataset and another is point data. In my database some points are not within the building footprints and some points are scattered on the roads. I want ...
Bruno B's user avatar
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Query: Raster alignment in QGIS (pixels without data)

I would like to know if when aligning rasters of different resolutions in QGIS if it is possible that some areas that do not have data can somehow be modified or interpreted to give an explanation ...
Diego_12's user avatar
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Alignment of two slightly different vector layers

I have to vector layers. It seems like two of them are describing the same features, but slightly offset from each other. I have tried to align them manually using the Advanced Digitising Tools (Move ...
Li Na's user avatar
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1 vote
1 answer
204 views

Align features of polygon process not making changes in ArcGIS Pro

I have a layer of 770 polyons (LWS) which are generally not aligned to OS Mastermap but mostly should be. I am trying to use the Align Features tool to bring the LWS polygon boundaries that are less ...
gordon26b's user avatar
7 votes
2 answers
408 views

QGIS - align labels of point layer perpendicular to course of polyline

Is it possible to align the lable text of point layers perpendicular to the course of a polyline?
Marek's user avatar
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2 votes
1 answer
194 views

Why are these Rasters out of alignment and how can it be corrected in QGIS?

Background A series of raster files have been created over the same area of land over the last 2 years using a DJI Phantom 4 Multispectral Drone connected to a DJI RTK (https://www.dji.com/au/phantom-...
A Auld's user avatar
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QGIS - Aligning Cells from Multiple Overlay DEM's [closed]

I am modelling a volcano with a changing landform using 5 overlaying DEMs at different stages of the volcano collapse. I need the cells of each DEMs to line up vertically so I can obtain elevation ...
Fitch's user avatar
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20 views

Imported layer misaligns with OSM using QGIS? [duplicate]

I downloaded a layer from a public website and I want to align the layer with OpenStreetMap. To do so I set the project's and OSM's CRS to the CRS of the layer. However, it appeared far from its ...
Floppy's user avatar
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Best orientation line bearing of a vector polygon in QGIS to fit the best

Let say, I have a country vector layer like Lebanon in this example, for us as humans we can easly see that the country extends the best not from north to south like Chile, or from east to west like ...
Khaled's user avatar
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Aligning multiple lines so they run in parallel (QGIS)

I have a set of lines (least cost paths from on place to another), which i would like to align where they run in parallel. What QGIS-tool could i use for that? Ideally, I could define a distance and ...
Zev_Zide's user avatar
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Align points to edge using common attribute

I have two layers, one with points that represents house numbers, and another one that represent the edge of the square, these layers have an attribute in commun, so I´m looking for a way I can use ...
Carolina Tello's user avatar
2 votes
1 answer
278 views

Rotate polygons inside of a polygon to align with the longest side without manually adding a rotation angle in QGIS

Is there a way to rotate all polygons in layer_a (green polygons) to align with the longest side of the polygon in layer_b (red polygon) without having to manually enter a rotation angle? In most ...
Anthony's user avatar
  • 127
2 votes
1 answer
470 views

Summing two rasters of different extents in QGIS

In QGIS 3.24 I've got two rasters, one that is 1079x1079 and another that is 83x84, but they both have a very specific pixel size, 0.002083333333333333304,-0.002083333333333333304. I'd like to add ...
Carter Dills's user avatar
1 vote
1 answer
150 views

Snap Raster and same cell size still lead to slight differences between rasters

I'm working in ArcMap 10.6.1, where I've been trying to make the cells of two rasters (let's call them raster A and raster B) line up perfectly with each other using the Snap Raster and Cell Size ...
stijnionio's user avatar
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Offsetting dataset to match another using QGIS

I have a raster (raster #1) which looks like so and a second raster (raster #2) like this What I want to achieve using QGIS is Fill in Raster #1's gaps with sensible values that have been influenced ...
guest_98732012's user avatar
1 vote
1 answer
479 views

GDAL warp not aligning two rasters perfectly

I'm trying to align one raster to another using GDAL Warp. I've read that it's important to pick a reference image and use its extent coords, cell resolution and the -tap argument to force the second ...
hmnoidk's user avatar
  • 709
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Duplicating Agisoft Metashape Projects

I am currently processing data for my Master's thesis and I need to process the same datasets many times with small changes each time. For example: Not using GCPs Using 9 GCPs Using 1 GCP Using RTK ...
Jose Luis Landivar S's user avatar
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153 views

QGIS WMS layer alignment with OSM

Please bear with as I'm a complete novice when it comes to GIS and QGIS, so some of the terminology may be incorrect. I am using QGIS as a WMS client to test my WMS server. I am trying to overlay a ...
mikip's user avatar
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1 vote
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297 views

Aligning vector layer with basemaps (OSM + Google Satelite) XYZ tiles (from QuickMapServices) using QGIS

I have this misalignment issue that I could not solve by use of answers to similar questions on GIS Stack Exchange. Any suggestions as to how to proceed ? Background QGIS version 3.24 I have two ...
playmobilmeister's user avatar
2 votes
0 answers
149 views

Cell grid not aligning in QGIS when raster calculator is used in model

I am attempting create my first model to automate some of my workflow. However, when using the raster calculator, the output raster is not aligned with the input one despite being referenced to the ...
holycow's user avatar
  • 31
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0 answers
78 views

Raster Coordinates after Geoferencing

I have an orthophoto output from drone deploy that is out by about 3m. When I try and georeference the raster using QGIS georeference tool, my raster disappears to the other side of the planet. ...
Nigel Grier's user avatar
1 vote
0 answers
162 views

Draw polygon with specific dimensions [closed]

I'm a beginner with QGIS, and I'm trying to draw a polygon that is 10m x 10m with 90 degree angles placed along a line, and centred around a point on that line. I don't know what projection to use (I'...
Shona Guthrie's user avatar
1 vote
2 answers
771 views

In Earth Engine, when exporting to drive the raster is shifted

The Problem: Two identical Landsat scenes were downloaded from two different sources. USGS Earth Explorer and Google Earth Engine. Although both of the scenes are in the exact same coordinate system (...
Yousif Almamalachy's user avatar
1 vote
1 answer
448 views

Align set of satellite images

I have a problem my set of four satellite images (4 different years of observations) of the same area are not aligned and more than that I see that there is a distortion problem also. I found this ...
Madi's user avatar
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2 answers
467 views

Fix extent of R rasters (grid_density output) to match

I have two rasters that are the result of the grid_density() function from the liDR package. With those rasters I want to compare point distribution of subsets of a LAS file. My problem is, that I get ...
Honeybear's user avatar
  • 2,426
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0 answers
178 views

Align two vector shapefiles (cells) - ArcGIS Pro

I want to align two vector shapefiles that both are represented by 100m by 100m cells. Thereby, the pink cells have to be placed on the green/yellow cells (see picture below). I already executed the &...
Foeke Boersma's user avatar
3 votes
1 answer
1k views

How to automatically align the edges of features to other features from an other fetaure class?

I have two feature classes containing polygons. One (lets call it A) covers the whole area of interest without any gap or overlap. The other (B) has polygons scattered over the area. The features of B ...
588chm's user avatar
  • 615
2 votes
1 answer
359 views

PostGIS align borders of countries

New to PostGIS. I have USA & Canada vector data. The borders have small gaps or overlaps. I want to use PostGIS to align one border to another border. We are free to add or remove vertices. I have ...
Tony's user avatar
  • 41
3 votes
1 answer
1k views

Aligning rectangular grid with raster pixels in QGIS

I want to create a 1000m grid over a 1000m land cover map such that the grid cells are perfectly aligned with the raster pixel underneath. But when I use the Create Grid function in QGIS, the cells ...
Ryan Ma's user avatar
  • 53
2 votes
1 answer
997 views

Wrong position when reprojecting layers from EPSG:32651 into EPSG:4326 [closed]

I have a vector layer on my project that I digitized from a geologic map. I originally projected it on WGS 84 UTM Zone 51 North (EPSG:32651) when I was digitizing. I tried reprojecting it to WGS 84 (...
Marc James's user avatar
1 vote
0 answers
96 views

Non-alignment of vector and raster layers in QGIS

I have a vector map layer, raster climate data and added a delimited text points layer. My problem is that the raster extent does not quite match the edge of the vector map, and as a result, some of ...
Gio's user avatar
  • 11
1 vote
0 answers
1k views

How can I align the pixels with using GDAL and Python?

I am trying to use Python/GDAL to align different GeoTIFFs that I warped (gdal.Warp) to the same SRS. My problem is one of the images is rotated, the pixels do not overlap perfectly, which is ...
Felix's user avatar
  • 165
8 votes
2 answers
6k views

Aligning two rasters of same resolution perfectly on top of each other in QGIS

I have two rasters, that I managed to make in the same resolution using the 'Raster tools --> Resampling' tool by SAGA. The pixel sizes are exactly the same, however the new resampled raster, in ...
Andrea Rey's user avatar
1 vote
1 answer
287 views

Geoplot/GeoPandas missalignment in Windows (no Anaconda)

I am trying to familiarize myself with creating geographic plots in Python using geopandas and geoplot. So I am working my way through tutorials and documentation. Currently, I am looking at the user ...
FirefoxMetzger's user avatar
2 votes
1 answer
905 views

Fit polygons in another polygon

Is there any way to perfectly fit the blue shapes into the green shapes? I have over 7k blue shapes and 550 green shapes and I would love if someone could help me to avoid me doing all the fitting ...
Gonzalo Villanueva's user avatar
0 votes
2 answers
376 views

Elevation profile that can follow the change in view of Atlas page in QGIS

I think I have read every thread on QGIS profiles in the stack and I cannot find a way to create a profile that can be produced in context on each page of an atlas print. I can create an image for ...
Mikeoramma's user avatar
0 votes
1 answer
707 views

Why do two rasters with the same spatial reference not align?

I have two rasters which have the same spatial reference and cell resolution but they are slightly out of line? Any idea why this is and how I can align them? I am using ArcMap 10.4.1
Will's user avatar
  • 1
0 votes
1 answer
93 views

Aligning Polygons to Margins in Data Driven Pages

I'm creating a data driven page of polygons (forest subcompartments) on a basemap in ArcMap 10.4.1. The scale required for outputted maps is predefined (1:5,000). Output is multi page pdfs. Users of ...
Yi_Harr's user avatar
7 votes
2 answers
766 views

Aligning line with closest line segment in PostGIS

I've got a road network dataset and a dataset that consist of multiple disconnected lines of varying lengths in PostGIS. Most of these lines are (largely) parallel to the road network, but the ...
winecity's user avatar
  • 539
1 vote
0 answers
357 views

Optimal alignment of satellite images taken separately over the same geographic surface

I am given two satellite images of a location which has been subject to a natural disaster, one before the disaster and one after. I am given bounding boxes for the images.The images have been ...
Lars Ericson's user avatar
0 votes
1 answer
424 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 ...
Yusef_S's user avatar
  • 101
2 votes
1 answer
295 views

Aligning pixels for using GSW as mask layer with Landsat 8 and Global Surface Water (JRC) Layer

I want to isolate some surface water areas on Landsat 8 images by using the Global Surface Water dataset in GEE as mask. After mapping both in the Editor I realized the positions of pixels of GSW and ...
elewe's user avatar
  • 41
3 votes
1 answer
869 views

Aligning two maps with different projections in QGIS

I am trying to add historic borders to a modern blank world map. The files I have are all bitmap format and the historic borders are in separate regional maps (Africa, India, North America, Western ...
Rob's user avatar
  • 31
2 votes
0 answers
285 views

Aligning points in WGS84 to centroid of features in projected CRS (EPSG:28992) using QGIS

I have a set of points in WGS84 representing the rainfall over the Netherlands, as acquired by radar towers. These points represent the centroid of a pixel in WGS84 and they are separately by (roughly)...
Irene's user avatar
  • 1,220