Linked Questions

4
votes
0answers
869 views

Changing central meridian in QGIS causes problems? [duplicate]

I want to change the central meridian of my world map (WGS84) in QGIS from 0 to -80. The problem is that this distorts the map every time I try it. This is what I do: go to Settings/Custom CRS and ...
2
votes
0answers
631 views

Creating a world map centered on another meridian in QGIS [duplicate]

I am trying to create a world map, but centered over the Pacific rather than the Prime Meridian. Recentering the projection (standard Mercator) on 180 degrees gives me a lot of ugly artifacts where ...
2
votes
0answers
411 views

QGIS world map projection with solid Russia (10 degrees over) [duplicate]

I'm fairly new to QGIS. I have a world map, standard WGS84 with 10 degree graticules (see map). How do I "shift" the whole map over just 10 degrees to give me a complete world map with a solid (...
0
votes
0answers
241 views

Wrap CSV lat/long points around 180 meridian in QGIS [duplicate]

I have a CSV file with lat/long coordinates. I also have a custom CRS to center the map on the Indian Ocean. Is there a way for me to force the points to plot on the blank band of the map where the ...
0
votes
1answer
132 views

Lines on map when I change projection on QGIS [duplicate]

I changed the projection of my base to WGS 84 PDC but I get these lines on top. This also happens to a few other projections. I am trying to make the Pacific the center of the map.
1
vote
0answers
72 views

How to reproject data from [-180 180] to [0 360]? [duplicate]

I have both a GeoJSON and shapefile of volcanoes along the Pacific Ring of Fire. The area I want to render in the map is right around the antimeridian, so Leaflet cuts it in half. I initially tried to ...
1
vote
0answers
41 views

Complete map of Oceania (physical, from satellite,...) to use as background [duplicate]

I need to use a map to show a cartographic output based on raster elaborations. Specifically, I want to use this map as background to overlay over it some cells of my rasters layers. The type of map ...
1
vote
0answers
33 views

Graphical error while reprojecting Shapefile with QGIS [duplicate]

I'm trying to retroject Natural Earth's Shapefile of the world (Admin 0 – Countries on this page: https://www.naturalearthdata.com/downloads/10m-cultural-vectors/). Here's the original Shapefile in ...
16
votes
2answers
4k views

Ortho Projection produces artifacts

I`m trying to create a sphere-like view using qgis and the "world from space"-projection http://spatialreference.org/ref/sr-org/6980/ (essentialy an ortho-projection). ArcGIS wraps the shapes ...
4
votes
4answers
2k views

Lines on reprojected sp objects with Mollweide projection

I'm having an odd problem such that when I reproject maps to a Mollweide projection in R using sp, I get additional lines stretching across the globe. What is going on here, and do you have any ...
6
votes
2answers
7k views

Changing shapefile longitude from -180 - 180 to 0 - 360?

I have a shapefile of world countries, with longitude between -180° and 180°. How can I change the shapefile (eg. with ogr2ogr) for having longitude between 0 and 360°. Following OSGEO/Trac ...
4
votes
1answer
3k views

How to render area that crosses 180°?

The problem is that the Chukotka Peninsula is located in the Western Hemisphere. So it is on the left side of Natural Earth Datasets. It needs to be moved to the right. I tried to use following srs(...
6
votes
1answer
763 views

Transforming a shapefile from EPSG:3338 to EPSG:4326?

I'm trying to transform this shapefile from EPSG:3338 (Alaska Albers) to EPSG:4326. When I display the file in EPSG:3338 in QGIS it looks as you'd expect: But when I display it in EPSG:4326 I see ...
3
votes
1answer
795 views

Escaping cut of western/eastern hemispheres in QGIS?

I am very new to QGIS and GIS in general, so I am struggling with the following: when I do a map of Russia, I get the part next to Alaska being drawn far left from Europe, as it lies behind 180o... I ...
1
vote
1answer
1k views

How to create polygon from my coastline in qgis? [duplicate]

I've downloaded the data from Natural Earth (coastline at a scale 50 million), I've cut the coastline into my study area, I wanted to clip other vector datasets as well, for this I wanted to convert ...

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