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Questions - map-projections

Unable to change raster projection in R

I have a raster object in R. I know is a raster because when I do class(pres_kriged_rst) I get [1] "RasterLayer" attr(,"package") [1] "raster" Also, if I "look&quo...
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Cinghio

r

raster

r-raster

map-projections

Votes: 0

Answers: 1

Latest Answer

4326 is just a number, not a coordinate reference system description -- even though it may work like that in some cases, it is better not to rely on it. With raster you can do library(raster) r <- ...
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Robert Hijmans

Visualize PostGIS geography bounding boxes to understand the &quot;&amp;&amp;&quot; operator

I have a point at (-130.2, 30.5) and a box at (-130, 30, -129, 31). As geometry, the && operator reports no bounding box intersection, while as geography, it does: WITH src(point, envelope) AS...
test-img

sjones

gis

postgis

qgis

map-projections

Votes: 0

Answers: 1

Latest Answer

Geography use great circle arcs instead of straight lines. To visualize them, you can segmentize a geography into small segments, then convert these segments to geometry WITH src(geom) AS (SELECT ST_M...
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JGH

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