Questions tagged [alignment]
The property of two different things being coincident or making them so.
121
questions
1
vote
0answers
16 views
Building, vertical alignment and urban densification [closed]
I am looking for a methodology to select using a land layer (plot) and a building layer the land where the buildings have low height and are located between lots with high buildings.
Has anyone ever ...
0
votes
0answers
23 views
How to 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 ...
0
votes
1answer
16 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 ...
0
votes
0answers
32 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 &...
2
votes
1answer
38 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 ...
1
vote
1answer
68 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 ...
2
votes
1answer
54 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 ...
1
vote
1answer
86 views
Wrong position when reprojecting layers from EPSG:32651 into EPSG:4326
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 (...
1
vote
0answers
28 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 ...
1
vote
0answers
167 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 ...
4
votes
1answer
1k 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 ...
0
votes
0answers
24 views
Layers projected the same not lining up
I have a map with many different layers all lining up fine and projected the same, but a new layer I've recently added is not lining up exactly. It's not off by a lot but you can definitely see the ...
1
vote
1answer
127 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 ...
2
votes
1answer
209 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 ...
0
votes
2answers
69 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 ...
0
votes
1answer
70 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
0
votes
1answer
41 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 ...
7
votes
2answers
349 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 ...
1
vote
0answers
172 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 ...
0
votes
1answer
120 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 ...
1
vote
1answer
139 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 ...
3
votes
1answer
261 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 ...
1
vote
0answers
83 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)...
0
votes
0answers
43 views
Methodology for boundary inspection
I have two datasets:
parcel layers
an overlaid boundary layer
When the boundary was initially drawn it was never snapped to the parcel boundaries. We now need to conduct reviews around the entire ...
2
votes
1answer
291 views
Align images with self-defined CRS in Google Earth Engine
I have uploaded a dataset to GEE and I want to align every image in the collection to have the same geographic extent as the first image of this collection.
My code so far :
var ref_image = ...
0
votes
1answer
217 views
How to make sure that vector and raster data align correctly in ArcGIS?
I have a shapefile of European states (open-access from here: http://tapiquen-sig.jimdo.com) and DEM data downloaded from Copernicus.
Europe states vector is in GCS_WGS_1984
(Datum: D_WGS_1984,
...
1
vote
1answer
47 views
Summing data from a smaller boundary shapefile to a larger boundary shapefile if the boundaries do not align in ArcGIS Pro?
I have a census tract boundary shapefile for the province of BC, with around 620 polygons, varying in size.
I have another boundary shapefile, BC service areas, this one has much larger polygons and ...
1
vote
1answer
40 views
Making raster layers calculated from point feature congruent?
Raster A and Raster B are both calculated from the same point feature. Raster A results from Natural Neighbor Interpolation in the Spatial Analyst toolbox. Raster B results from Point Density in the ...
2
votes
1answer
120 views
USGS Relief map (GeoTIFF raster) misaligns with vector layers (QGIS)
I'm trying to correct the alignment of three layers (described below), but I'm not entirely sure how to go about re-projecting raster layers to my other layers. Ultimately my goal is to clip the ...
1
vote
1answer
113 views
Closest Facility routes do not align with network dataset
I am running both Service Area analysis and Closest Facility analysis using the same network dataset, StreetMap Premium 2017R3. The service area lines exactly line up with the underlying street ...
2
votes
1answer
140 views
GridMetrics output does not align with base DTM?
I am trying to derive grid metrics from LiDAR (.las) file using FUSION's GridMetrics tool.
My problem is that the output raster from GridMetrics does not align with the base DTM used to run the tool.
...
2
votes
0answers
404 views
How to resize a raster to the same extents of an equivalent raster?
So here's the problem
I have a georeferenced orthomosaic which I used to generate land cover data.
During the pixel classification phase of land cover study, I had to use other softwares to help me ...
3
votes
1answer
346 views
Getting source bounds when filtering LAS using PDAL?
I'm using PDAL to filter out non ground points to create a DTM along with a DSM also made through PDAL to create a Canopy Height Model using this method.
My workflow looks like this.
#!/bin/sh
# ...
0
votes
1answer
34 views
Custom Projection and Alignment of Large-Scale RGB Time Series Mosaics
We are running an experiment to observe time to germination and growth in potato plants in a greenhouse. To that end we have built a gantry system equipped with an RGB camera to capture the plants ...
1
vote
0answers
52 views
Raster alignment doesn't produce aligned results
I have two rasters with different extent and resolution, same coordinate reference, from two different surveys - one RGB and one NIR - takes on different times.
nir_in
class : RasterBrick
...
1
vote
3answers
969 views
Align one polygon boundary to another boundary
As visualized in the picture as an example, two polygons should be aligned to each other. The boundaries of the green polygon should not be changed. The blue polygon may therefore only be adapted to ...
4
votes
3answers
2k views
Can not get the connecting line to align with label in desired place in QGIS 3
I have labelled a points layer by defining a line between points and labels, so as I could remove the label to outside the map area (Figure 1). Using additional columns in the points layer attributes ...
0
votes
1answer
213 views
Aligning polygons to another polygon?
I am drawing the habitat map within 500 Meters boundary. Once the works area changes, I need to update all the habitats (polygon) to align with the boundary (another polygon).
Recently, I am using ...
0
votes
1answer
160 views
Based on what rule does Raster Calculator produce output when the input rasters are misaligned?
Taking into account the following assumptions:
we have 2 rasters (satellite images from different satellite platforms) of the same pixel size, same coordinate system, little bit misaligned, Snap to ...
0
votes
2answers
84 views
Points not at right location
I know the questions have been asked, but I can't make it through!
So, I have uploaded a CSV with my Lat/Long coordinates (in degree decimals). Every points should be located in Quebec, but it all ...
4
votes
1answer
571 views
Align the border of a polygon to overlap the border of another using QGis
I have two polygon layers. As seen in picture, the border of two layers do not fit. I want to align the border of layer 1 (blue) to overlap the border of layers 2 (pink). How to do it with QGIS?
1
vote
0answers
167 views
Aligning or integrating features from two feature classes using ArcGIS Desktop?
I am trying to align two line feature classes (street networks) that have been digitalized differently - see picture. One is more spatially accurate and has the attributes I need (A) and the other one ...
1
vote
0answers
708 views
Raster alignment
I have a problem with raster aligning.
Given:
Two rasters that need to be aligned. Rasters a little bit shifted, scaled and rotated.
Two arrays of matched keypoints.
Transformation is wrong, so ...
1
vote
0answers
75 views
Histogram charts rendering away from data
I am having issues with producing Histograms in my file. Initially I thought they were not showing up, but it turns out they are, just extremely far away from my actual data. For reference:
Here are ...
1
vote
3answers
673 views
ArcGIS Attribute Table - Latitude, no Longitude
I received a shapefile from an online source, and in the attribute table it shows a column and values for latitude; but there is nothing for longitude.
I have not used ArcGIS for some time, and I don'...
1
vote
1answer
160 views
Misalligned coordinate system of overlapping shapefile
I am using QGIS and have 2 shapefiles related to a particular city: The city blocks and the census tracks. When I bring them both into QGIS and overlay them, it's clear that the boundaries should ...
0
votes
1answer
164 views
Why the line in the shapefile does not align with the base map reference Runway? [closed]
I created a shapefile and set the coordinate system to WGS 1984 UTM zone 45N, and I added the base map Imagery with Labels.
I created a line feature with Coordinates of two ends of the runway
(27°...
0
votes
0answers
561 views
Align two georreferenced rasters which have different resolution in QGIS
I have two rasters in .TIFF format which have different resolution, different information and extent but georreferenced in the same coordinate system .
I would like to know if it possible to align ...
1
vote
3answers
560 views
The raster or shapefile exported from Ecognition does not align with the original raster when I open it in QGIS
The raster or shapefile exported from Ecognition does not align with the original raster when I open it in QGIS.
I'm using Ecognition to classify a raster, but when I export the shapefile and open it ...
1
vote
2answers
568 views
CityEngine: aligning a shape to terrain
I have three layers: 1-Parcels 2-Buildings 3-DEM
I imported them all into CityEngine and I aligned parcels and Buildings to Terrain (DEM).
I noticed that, in large parcels (see Figure 1), some ...
