Questions tagged [length]
The longest extent of anything as measured from end to end
Line feature, Merge and Dissolve
I have a layer with several polygons and a layer with line above these polygons. Its like a map and a road network on it. I have to find out the length of line in each polygon. I used the intersect ...
Getting geometry length in meters in PostGIS
In PostGIS, the ST_length() function returns the length of a LineString in some units, but not in meters. Is there a function like ST_Length() but in meters?
How to Calculate length of polyline geometry for several tables in PostGIS?
PostGIS database contains several geometry (polyline) tables (with names "D1_r", "D2_r", "D3_r"). I calculate length for one "postgis layer" use request: SELECT sum(ST_Length_Spheroid(the_geom,'...
How to create a rectangle polygon with set lengths in QGIS?
I have a search area i want to outline. and i need it to be 1km by 2km. is it possible to achieve this in QGIS. I can create a rectangle polygon but only guess the lengths.
Calculating sum of geometric length of shapefile in ArcGIS Desktop?
I have a shapefile with lots of line routes. I projected it and calculated the length using calculate geometry. How can I get the sum of all these routes in ArcGIS Desktop?
Permanently setting polygon/polyline segment length using ArcGIS Desktop?
I'm trying to create a several hundred polygons in ArcGIS 10, each of which may have up to several hundred vertices. For consistency sake I would like each line segment in these polygons to be of a ...
Getting the length of line inside polygon
How can I get the length (brown marked part) of the "Road 7" inside the red polygon? My start: SELECT ST_Length(way) FROM lines WHERE road = "Road 7" AND ST_Intersects(line, ...
Length in meters arcobjects [duplicate]
i have a an array of polylines in epsg:3857 projection, and i want to calculate length of each polyline. i am new to arcgis and arcobjects, i couldn't find the functions that i need. Should i use ...
Why Attribute name length in QGIS is limited to 10 characters?
In QGIS software, a vector layer has "attribute" but the name length is limited to only 10 Characters. Is there any method to name an "attribute" to a longer name? (e.g. attribute name "building name"...
Polyline length calculation in ArcGIS 10/VB script
I used to run this length calc on my data in ArcGIS 8 and 9, and now it don't work in ArcGIS10. Can you tell me what I have done wrong? Dim dbllength as double Dim pcurve as icurve Set Pcurve = [...
Finding line length while editing in QGIS?
I am using QGIS. I would like to know if there is any way during the editing phase of a vector (line or polygon) to know the length of the line (total and partial) that is being created?
How to measure length of line accurately?
In postgis 1.5 for the below given query the answer is 1540651.62674101 meters , SELECT ST_Length(ST_GeomFromText('LINESTRING(77.83042478941326 9.98463896136159,78.03469506809812 23.90398909552571 )'...
ArcGIS Surface Length Tool equivalent in FME?
I am trying to calculate the 3D length of a line. I currently have a rather complex and cumbersome model built in ArcGIS ModelBuilder that uses a tool called "Surface Length". I was wondering if ...
How to get turn angle, line orientation and line length in ArcMap 9.3.1?
I am mapping and analysing animal movements using arcgis 9.3.1 along with Hawthorne Beyer's GME, and am trying to utilise the correlated random walk commands, but in order to do this I need to find ...
Looking for a pythonic way to calculate the length of a WKT linestring
I was quite unsatisfied with Calculating Length of Linestrings in WGS84 in Miles. It kept me wondering if there is a more convenient, Pythonic way to calculate the length of a WKT linestring according ...