Recent questions tagged gis

0 votes

699 views

1 answer

gis - From a shapefile with polygons/areas, and points (lat,lon), figure out which polygon/area each point belongs to? In R

I am trying to identify which polygon (ZCTA... aka Zip Code analogue) a given point belongs in, given a ... missing here? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

453 views

1 answer

gis - Calculating the distance between polygon and point in R

I have a, not necessarily convex, polygon without intersections and a point outside this polygon. I'm ... implements an efficient algorithm? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

293 views

1 answer

gis - R: creating a map of selected Canadian provinces and U.S. states

I am attempting to create a map of selected Canadian provinces/territories and selected U.S. states. So far ... accomplish the objectives in R. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

620 views

1 answer

gis - How do I convert coordinates to a Latitude & Longitude?

I am reverse engineering a transportation visualization app. I need to find out the latitude for the origin of ... to latitude and longitude. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

596 views

1 answer

gis - netCDF files in R

I have netCDF file obtained from here with name precip.mon.total.v6.nc. I am using ncdf package in R to ... for any help in this direction. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

411 views

1 answer

gis - Specifying Lat & Long for Leaflet TileLayer

Seems like a simple question, but I have been tearing my hair out for hours now. I have a series of files ... help is much appreciated, cheers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

547 views

1 answer

gis - Reading hdf files into R and converting them to geoTIFF rasters

I'm trying to read MODIS 17 data files into R, manipulate them (cropping etc.) and then save them as geoTIFF's ... dealing with .hdf files in R? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

712 views

1 answer

gis - Equivalent of PostGIS ST_MakeValid in Django GEOS

Upon checking a polygon object's validity using Objects.polygon.valid, it thrown a GEOS_NOTICE: Self-intersection ... ST_MakeValid in Django? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

827 views

1 answer

gis - Buffer (geo)spatial points in R with gbuffer

I'm trying to buffer the points in my dataset with a radius of 100km. I'm using the function gBuffer ... all help would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

696 views

1 answer

gis - See if lat / long falls within a polygon using mysql

I have the created the table below CREATE TABLE geom (g GEOMETRY); and have inserted many rows, example below: ... me in the right direction? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags