Questions tagged [offset]

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Offset Expressions Dynamic QGIS - Unique non-repeating Numbers

I am trying to create a layer style that shows line features that share the same geometry, an exploded view for line Features. What I have done so far via the Offset expressions in QGIS 3.6 ("...
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0answers
405 views

QGIS draw line segments with “geometry generator” based on segments angle

I have quite a hard problem to solve here and I don't know if its even possible with the geometry functions in QGIS. I have a line geometry with equidistant vertices, that is, same length segments. ...
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268 views

Alternative to Event layer plugin for QGIS > 2.8?

It appears to me and from another post that the qgis "Event layer" plugin is not fully functional in versions above 2.8. Trials using versions 2.14 & 2.18 failed to generate a Point memory layer. ...
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25 views

Making callout lines follow feature offset

I'm looking for a solution to the following problem: Using QGIS 3.16 I'd like to display two point features with the same coordinates. So I set an offset to the symbology of one of them (see attached ...
2
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0answers
671 views

Parallel Offset of a Polygon Edge with Shapely

I need to offset edges of a polygon by different amounts. buffer() will parallel-offset all the edges by the same amount, and each in its edge-normal direction (and in both directions if applied to a ...
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0answers
12 views

ArcGIS Desktop 3D Analyst Line of Sight

I am trying to do some Line of Sight analysis on some points using 3D Analyst in ArcGIS Desktop. I have a set of points that I've made two copies of a feature class of, one to use as the observers and ...
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0answers
37 views

Offsetting multiple points

I have a multiline shapefile and a point shapefile. The points are supposed to fall in the center of line breaks but when imported to qgis, the points fall on one end of a line break. Is there a ...
1
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0answers
34 views

Huge offset in Lambert Conformal Conic data using ArcMap

I want to display my lat/lon climate data, which is in Lambert Conformal Conic. But when I load it in ArcMap (also in QGIS) it will always be displayed with a huge offset. The data is located in ...
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0answers
112 views

QGIS, labels offset for a line layer

I am working with rule based labels on a line layer and need to move the labels along different axes along the line. I want to move the label 2 along the line a few millimeters. For the label 2, the ...
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0answers
36 views

Specific mixed feature between offset, buffer and intersection

I'm trying to reproduce the steps needed to aim this goal: Given a layer of polygons, I'm want to retrieve for each polygon which is at a distance less than 50m to a 2nd polygonal layer the only 5m ...
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0answers
60 views

Large offset between two identical vector layers

I want to have a dxf layer to overlay another layer. The dxf layer is already saved to a shapefile with the needed crs. The layer has a large offset and nothing happens when I set the crs to the ...
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33 views

What is the sIgnificance of equator in GPS offset calculation?

I am going through a SAE document where it says that the GPS offsets (NodeLL) should be calculated in such a way that the range should be within one of these: ranges of +- 0.0008191 degrees ranges of ...
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0answers
84 views

PostGIS generate lanes for multilinestring map (ST_OffsetCurve)

I currently have a road network for specific area as multilinestrings. It only shows the road as a single line. I would like to generate lanes for that as well, using some kind of offset. The problem ...
1
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1answer
98 views

Map Offset, Design not in Line with Map when I load my workspace

We are facing an issue when using QGIS to plan and design FTTx networks. We create the design and it all looks great and print it via composer to be validated on site but when we go back into the ...
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0answers
122 views

How to offset points from a coastline

I need to create a set of points with a fixed spacing and given distance from a a georeferenced coastline. My idea is trying to obtain a parallel line and then placing points on it. To do the first ...
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0answers
149 views

GDAL gdalwarp usage on QGis - how to set cell position of the clipped raster to be equal to the origin of the source cell

I work on a Windows QGis 2.14 platform. I need to clip a raster with a vectorial polygon. When I use gdalwarp I cannot find where is the setting for establishing the output graticule position respect ...
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9 views

Sumo's netconvert netoffset

Can anyone tell how Sumo's netconvert is using netoffset (lat,lon offset) when we convert osm file to .net.xml file in order to import in sumo ? Netoffset is present in .net.xml file in location tag.
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62 views

QGIS - Misaligned vector layers

I am using QGIS Version 3.16.4-Hannover and Windows 10 but I also tested on Linux Mint 20. I have a problem with several imported shapefiles from different sources. I do not know if I do something ...
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29 views

QGIS / GRASS GIS How to make offset / parallel lines with Z values

Please how to make something like v.parallel (GRASS function in QGIS) or offset (QGIS) from 3D line with keeping Z value (with z geometry). My vector 3D line is center of river and i need to make ...
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22 views

Creating Road Edge of Pavements from Road Centerlines using QGIS

I have a Road Centerline data set and would like to use it to create a Road Edge Of Pavements data set that I could then export to a CAD format. Is there an easy way to do this in QGIS?
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16 views

Confused on gainbias.txt values using OpticalCalibration Orfeo-Toolbox

I'm currently working on a preexisting project that utilizes Orfeo Toolbox OpticalCalibration. There are different satellites that each have different data regarding solar irradiance that the project ...
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0answers
43 views

Fixing fixed layer offset

I have a shapefile layer whose CRS is WGS84. However, all points are off by some fraction of degree, roughly corresponding to a dozen of meters. Is there a way in QGIS to fix this offset? I can more ...
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0answers
18 views

Need to arrange the point features in a row or inverted triangle

Need to arrange the overlapping point features in a row or inverted triangle which are in same layer with 0.1 offset. enter image description here ps://i.stack.imgur.com/B8idh.png
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0answers
27 views

Offset line, when zooming out line extends at intersections

[1[]2I'm doing offset in ArcGIS in a cartographic line symbol. Before the offset the line in all scales appears OK. But when zooming out, the offset line extends out at intersections. While when ...
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826 views

Offsetting polygons by meters with clipper

I would like to create buffered polygons of locations (towns, villages etc) in order to use them for searching in radius. This is what I would like to achieve (units for ilustration): This is how I ...