Questions tagged [offset]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
5
votes
1answer
988 views

Data Defined Override XY offset input

I have several rectangular polygons that overlap each other and I'd like to label them with the ID's (for atlas page numbers). The image below shows my initial setup. I've offset each label from the ...
3
votes
0answers
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. ...
3
votes
3answers
4k views

How do I zoom/Pan to a Leaflet Map, such that the given point is off-center?

In my Leaflet Application, on some event, I want to zoom to a particular marker, and then show it's popup. I have certain other custom components on top of the map, and the Popup that appears, is ...
8
votes
1answer
658 views

Using a formula to set the offset of a line pattern on QGIS 2.18

I’ve been trying to fill city boundaries polygons with a 3 colors stripes pattern (red, orange, green), whose respective thickness is proportional to 3 variables, different for each city, but whose ...
3
votes
1answer
719 views

Generating line offset, perpendicular using PostGIS?

I'm trying to generate two line offsets from a line but I'm having problems generating them as they should be. Using PostGIS select st_asgeojson(st_union(the_geom)) from ( select ST_Line_Substring(...
5
votes
2answers
448 views

How to write a CASE WHEN expression for label offset?

I would like to label to feature with id 1 and 2 with offset x of -10 mm and the offset y with 5 mm. But on the GUI there is only one data defind overried. Is it possible to change that for the x and ...
1
vote
1answer
375 views

Is there a Field Calculator or GUI based way to move points by angle and distance in QGIS?

In QGIS what is the best way of moving an existing point (or digitising a new point) when you have: the starting x,y (UTM) coordinate; the angle from compass bearing towards the unknown point, and; a ...
3
votes
1answer
6k views

How to graphically offset the boundary line of a polygon in QGIS?

In Arcgis, there is a way to offset graphically the contour line of a polygon like below. I'm trying to do the same thing in a styling method (i.e the solution can't be by buffering physically the ...
4
votes
2answers
7k views

Offseting point perpendicular to line direction in PostGIS

I have a PostGIS table of points, that are sitting on road centerlines (I've linear referenced them). And the second table with road centerlines themselves. The point table also has a field roadid and ...

1
2