Questions tagged [length]
The longest extent of anything as measured from end to end
215
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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 ...
18
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4
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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?
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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,'...
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3
answers
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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.
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2
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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?
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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 ...
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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, ...
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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 ...
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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"...
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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 = [...
14
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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?
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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 )'...
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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 ...
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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 ...
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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 ...
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