GeoProcessing Tools for QGIS
GeoProcessing Tools for QGIS
The antipodes of any place on Earth are distant from it by 180° of longitude and as many degrees to the North of the equator as the original is to the South (or vice versa).
If the coordinates (longitude and latitude) of a point on the Earth’s surface are (θ, φ), then the coordinates of the antipodal point are (θ ± 180°,−φ). This relation holds true whether the Earth is approximated as a perfect sphere or as a reference ellipsoid.
The closest and farthest pair of Points
The most isololated point of a point set
The largest empty circle of a point set
The maximum inscribed circle of polygons
Skeleton/ Medial Axis of Polygons (Output should be manually refined)
Split Polygon layer into almost equal parts using Voronoi Diagram
Create Wedge buffers for point features
Create Spiral Wedge buffers for point features
Vietnamese Font Converter: TCVN3 <--> Unicode <--> VNI-Windows <--> Unaceented; UPPER CASE <--> lower case <--> Capitalize Each Word <--> Sentence case <--> sWAP Case
Calculate antipode of a (lat, long) input.
antipode(lat, long) or antipode($y, $x) in WGS84 CRS
antipode(10.784229903855978, 106.70356815497277) → returns a point geometry
geom_to_wkt(antipode(10.784229903855978, 106.70356815497277)) → 'Point (-73.29643185 -10.7842299)'
Convert text to Capitalized.
capitalize(string)
capitalize('quách đồng thắng'') → 'Quách đồng thắng'
Convert text to unaccented.
unaccent(string)
unaccent('Quách Đồng Thắng') → 'Quach Dong Thang'
Convert TCVN3 to Unicode.
tcvn3_unicode(string)
tcvn3_unicode('Qu¸ch §ång Th¾ng') → 'Quách Đồng Thắng'
Convert Unicode to TCVN3.
unicode_tcvn3(string)
unicode_tcvn3('Quách Đồng Thắng') → 'Qu¸ch §ång Th¾ng'
Convert VNI Windows to Unicode.
vni_unicode(string)
vni_unicode('Quaùch Ñoàng Thaéng') → 'Quách Đồng Thắng'
Convert Unicode to VNI Windows.
unicode_vni(string)
unicode_vni('Quách Đồng Thắng') → 'Quaùch Ñoàng Thaéng'
sWAP Case of input text
swapcase(string)
swapcase('Quách Đồng Thắng') → 'qUÁCH đỒNG tHẮNG'