Questions tagged [dimensions]

A measure of spatial extent, especially width, height, or length. (See the full wiki for additional meanings.)

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Unable to use dimensions with WMTS

I am setting up an image mosaic in GeoServer and I can't seem to figure out how to get custom dimensions to work with WMTS. My WMS requests work well when I include custom dimension parameters, but ...
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Setting permanent minimum height and width of all cells in attribute table with PyQGIS

Let's assume there is an attribute table of a vector layer which was opened with F6, see image below With the code below I could set the minimum height and width of all cells in the attribute table. ...
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R cannot correctly read the extents of sentinel data but gis can

I'm working with Sentinel-1 data and trying to use the raster package in r to read it. I got the following error. The raster seems not to be well georeferenced. The resolution and extent are not ...
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increasing 'extent' of small raster to be same size as large raster in R [closed]

I have a satellite image with dimensions (11418, 13790, 1). The resolution is 10m. I have two other rasters, which fall inside of my satellite image which are the same resolution and crs. How would I ...
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Enabling time dimension for layers in GeoServer

I have a collection of GeoTIFF files, each one corresponding to a date and time. How can I add the information date and time to those GeoTIFF, so that GeoServer allows the enabling the "Time"...
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Get image width and height in Google Earth Engine

We can get image dimensions with get("dimensions") ).get(0). The image is from ImageCollection,for example: However, There is no dimensions here. The image is computing results, there is ...
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Why does OSGEO/OGR add a third dimension to my 2D geometry?

When I instantiate a new wkbPoint geometry and give it only two coordinates, I expect it to be specifically 2D. However, a third coordinate automatically gets added as 0. See my code below: from osgeo ...
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QGIS Grid size accuracy

I am using QGIS. I have been using "research tools/create grid" during my process to generate XY coordinates for field research. Using opentopomap for map layer. Using shapefiles. In the ...
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Dimensioning plugin not responding

Trying to create a dim line on QGIS 3.16, Windows 10. The Dimensioning plugin seems to be installed, and even created one dim line, but stopped responding (I updated and re-installed it, it didn't ...
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Automatically adding dimensions to polygons in QGIS [duplicate]

Is it possible to show : lot # area dimensions of the polygon's lines highlighted polygon with the only input being the lot #. The result should look like this:
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Changing pixel's dimension (raster) on QGIS

I would like to change the size of the pixels from 2.5 to 10. How can I achieve this?
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Rasterio reprojection, changing pixel size: results in crazy pixel values

I'm trying to project a geotiff with 789x789m pixel size to 100mx100m using another geotiff as a template. Everything seems to work except that the output pixel values, shown when I open the file in ...
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Dimension Difference preventing plot of series

I have performed linear regression between the 'ro','pr' series (runoff,precipitation) and printed the chart. I want to print the linear fit on top of it and get the R**2 value, but dimensionality ...
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Creating dimension feature class that displays inches in ArcGIS Pro

I have a line feature class in State Plane survey feet. When I create a dimension feature class I simply cannot figure out how to get the dimension to display inches. There seems to be a button for ...
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NetCDF get_dims too many values to unpack

I am working with a NetCDF file (.nc) - 600+MB. import netCDF4 from netCDF4 import num2date import numpy as np import os import pandas as pd # Open netCDF4 file file_location = '2m dewpoint ...
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Image dimensions in Google Earth Engine

How can one get image (band) width and height on the server side? On the user side you do it with image.getInfo().bands[0].dimensions, following Extracting information from Google Earth Engine image ...
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Collision analysis with line diameter in QGIS

I have some lines representing pipes. They have Z value in the attribute. I need to check if they collide with each other. So I want to know where they intersect/collide in height. I was wondering if ...
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Raster data, basics: where is the information?

A long time ago I worked a bit with ArcGIS and shapefiles but never with raster data. Now, I have a raster dataset that I use in QGIS. Ok, no biggy I thought. Just convert it to shape/ vector and all ...
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Adding dimensions to map in QGIS?

I would like to add dimensions to my QGIS map. It can be in the editing/drawing space or the print composer. I would like to see how long a line is, for example 3,5 m. I tried a lot of different ...
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Moving dimension text in ArcMap?

I am labeling a 2-D area with several intersecting dimension labels, and I would like to move the dimension text ('512.64 ft') over to the sides of the polygon to make it easier to interpret. ...
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3 answers
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Creating polygon with exact measurements in QGIS 3

I want to create a square in QGIS 3 with dimensions of 50m by 50m exactly. How can I implement that?
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2 votes
1 answer
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Why do ArcMap dimensions disapear when I close and reopen a map?

I am trying to use the dimensions in ArcMap but after I dimension a map then close and reopen the map the dimensions are gone and I get a COM error, cannot initialize COM component when I try to edit ...
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Need to convert coord_dimension from 4 to 2. File contains 2D polygons

I am working with PostGIS Bundle 2.5 in PostgreSQL 11. I loaded a MultiPolygon file from a geodatbase and I need to append the geometry table to an existing geometry table. However, the coordinate ...
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328 views

Determining minimum width of irregular polygon with PyQGIS [closed]

I would like to determinate minimum width of an irregular polygon (as those in red in picture) with PyQGIS. Does anyone have any advice?
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OpenLayers 4 - draw or move a vector geometry reprojecting its vertices to keep dimensions

I have to draw a polygon on a vector layer on a simple OpenLayers OSM map (WebMercator). What I know: the center (lat/lon) of this polygon the lengths (in meters) of each side. I can pre-calculate ...
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Why does Germany look equally as large as Afghanistan on Google Maps?

I snipped Germany and Afghanistan from the same Google Maps view: They look like they are about the same size. Here is the full screenshot: The problem: Afghanistan has an area of while Germany has ...
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Converting dimension feature class into standard feature class using ArcGIS Desktop?

I have found very little information regarding if it is possible to convert a dimension feature class into a standard feature class. This would hypothetically be done in an SDE environment. Our theory ...
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6 votes
3 answers
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Stack rasters with different origin, dimensions and resolution in R

I have three raster files with the same extent and CRS, but with different origin, dimensions and resolution. r1 class : RasterLayer dimensions : 3020, 3043, 9189860 (nrow, ncol, ncell) ...
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7 votes
3 answers
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Converting projected coordinates to lat/lon using pyproj fails

I have been trying to work on this issue on myself mainly referring to this post (Converting projected coordinates to lat/lon using Python?) but still didn't succeed. I have some 2-D data function ...
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4 votes
2 answers
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How to read geopackage tiles using Geotools

I want to read tiles from a geopackage file using Geotools (v. 17.0). I found the class GeoPackageReaderTest.java on GitHub and modified the example to read tiles from my file: // try to read ...
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Does line feature have one or two dimensions?

In the coursera class fundamentals of gis it's said that lines are one-dimensional feature and polygons are two-dimensional. Is this correct? if the line has a curvature two dimensions are needed to ...
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556 views

CRS Reprojection by Warp or by Saving

I'm transforming a WGS84 CRS to ETRS 89 using QGis. When I reproject the raster using via raster transformation or via GDAL Warp my pixel change from 30x30m to 26x26m which shouldn't be a problem as ...
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Multiple dimensions problem in importing kml files

When I import multiple kml files into R by using readOGR in a loop, I came across the problem denotes as follows Error in ogrInfo(dsn = dsn, layer = layer, encoding = encoding, use_iconv = ...
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9 votes
4 answers
3k views

Dropping z dimension programmatically

It seems there is no geoalgorithm to drop z values in the QGIS processing toolbox. Can this be done programmatically using the Python console? At the moment I have to save the layer with unchecked '...
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3 votes
2 answers
493 views

Real dimensions of square buffers

I have a shapefile with points and I want to create square buffers around my points 6x6. My coordinate system is in meters. I use R and for the buffers I use: bufers=gBuffer(file, width = 6,capStyle="...
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Changing the height of info window in CARTO

I have inserted a chart in info window for every feature of a polygon layer in CARTO. I want to change the height of info window in order to be looked as a whole without the need of scrolling. In info ...
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1 answer
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Import 2D GML file via OGR2OGR fails with "Did not get at least 3 values or invalid number of set of coordinates"

I have a GML file that seems to mix <gml:posList srsDimension="2"> and <gml:posList> records. OGR2OGR (understandably) crashes when reading these files: ERROR 1: Did not get at ...
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267 views

How to set coordinate dimensions in Django GDAL API?

The Django GDAL documentation for coord_dim says: coord_dim Returns or sets the coordinate dimension of this geometry. For example, the value would be 2 for two-dimensional geometries. But how do I ...
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Specify default width and height used by Geoserver's layer preview page

Currently whenever I try to preview any WMS layer under Geoserver's layer preview page &width=768&height=339 automatically gets set in the request. I'd like to change these values. Is there ...
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3 votes
2 answers
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Multi-dimensional points in PostGIS

I have experience in PostgreSQL but I am fresh new in PostGIS and I can see how quickly would I like it. I have extensively worked on time series and now I am discovering the spatial side of my data. ...
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How to add time and elevation dimension attributes to Geoserver rasters?

In geoserver, when I edit a postgis raster layer and click on the Dimensions Tab, I can't enable either of the Time or Elevation dimensions. The following message appears next to each of the ...
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R raster stack 4 dimensions

I am trying to create a raster stack / brick from a list of ncdf files with the dimensions 160x160x24x1). r = stack(files) This gives me a raster stack but without the 4th dimensions which is ...
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Showing dimensions on polygons in QGIS?

I have a shapefile that contains all of the property parcel lines in King County, WA. We are currently displaying this data through mapbox on our site with no issues. We would like to be able to show (...
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1 vote
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Drawing features with specific dimensions in ArcGIS [closed]

I am having some issues drawing transect lines in ArcGIS. I need to create some lines that have specific lengths (20m and 30m). My Map units are set to 'meters' and coordinate system is NAD UTM 10. ...
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Real-world dimensions of a 3D object in VisualSFM or MeshLab

I have a good-quality, precise 3D scene reconstructed from photographs/video by VisualSFM. All camera parameters, including 3D position and lens details, are known. Now, that the hardest work has ...
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4 votes
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Is there a tool that shows dimensions during editing?

Is there a plugin or tool providing following functionality: I select 2 points (or vertices) - it shows the length between this points. When I edit the point (or move vertex) the length automatically ...
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WMS with time dimension

I set up a layer with "time" dimension in GeoServer, but I'm having quite a hard time figuring out how to use it... It is a vector layer with some polygons in it. This is my layer configuration for ...
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AutoCAD dimensions units

Not sure if this question belongs (Please tell me if it isn't) I have an AutoCAD drawing that is in centimeters, and every time I insert a dimension, it appears in centimeters (which makes sense ...
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8 votes
3 answers
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What's the difference between coordinateDimension and spatialDimension?

The OpenGIS standard mentions three methods to query the dimensions of a Geometry: dimension(): the inherent dimension of the geometry: 0 for Point 1 for Curve 2 for Surface coordinateDimension(): ...
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Unable to create Dimension Feature Class [closed]

I am trying to create a Dimension feature class within a new geodatabase. I right-click on the geodatabase and select the New, then Feature Class. The New Feature Class window comes up and I can put ...
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