# Tagged Questions

Measurement is finding a number that shows the size or amount of something.

4k views

### Using Geodesic Measurements for Circle Radii?

I am currently developing an OpenLayers mapping site. Measurements can be made using a line tool, and an area tool. Both of these are currently set to calculate geodesic measurements as outlined in ...
6k views

### Calculate line distances inside of polygons using ArcGIS for Desktop?

I'm working with two data sets: NHD polyline stream layer for my entire state HUC Watershed boundary Polygons for the entire state I am looking for a way to calculate the total length of streams ...
3k views

### Best formula for calculating short distances in UTM?

I'm fairly new at calculating distances with precision, but I wanted to know what is the best formula for calculating short distances in UTM coordinates. The distances that I'am calculating are all ...
5k views

### Is it possible to display the length of each segment with the Openlayers measure control?

I am trying to make a OpenLayers measure tool that displays the length of each segment on top of each segment and the total length of the measurement as shown below: I have used this example http://...
10k views

### Cannot get areas for polygon layers in ArcMap 10

For an ArcGIS project opened in ArcMap 10, we have added polygon layers representing different geographical features. After all the polygons were created, we opened the attribute tables for those ...
449 views

### Measure length within vector grid?

I have a grid and some lines within a grid and I was wondering how to measure the length of the lines inside the grid. I can use the measure tool for a straight line, however in the future I will not ...
462 views

### Find closest point from origin in QGIS and display measure line in composer

I have a location point. there are several constraints areas surrounding the point. Is there a way to calculate the closest point of this constraint from my point and to display the distances as a ...
86 views

### Why does not equal length of line in DIRECTION/LENGTH with length of line in MEASURING in OpenLayers 2.13?

My map projection is: "EPSG:900913" ,Display projection is "EPSG:4326" and units is "m", however does not equal the length in Direction/length with the length is calculated in measuring in OpenLayers, ...
541 views

### How to calculate the average distance among set of points as measure of closeness

I have three series (or tables) of points in PostGIS which I want to compare. I would like to know how "close" each series is when compared to the other two. In other words I would need some measure ...
2k views

### Can the units of the measure tool in QGIS be changed?

All, I'm trying to do some error-checking with some rasters I'm creating, and want to measure line distances on the map in feet, rather than meters - which is what the measure line tool seems to be '...
135 views

### How to compute orthodromic distance in QGIS?

I have opened a geotiff file with QGIS. The CRS of this file is EPSG:3857 (web mercator). When I use the distance tool in the menu, the computed distance is towards web mercator coordinates and not ...
148 views

### Coloring multilinestringzm M values in QGIS

I have output from a geophysical technique that produces X,Y,Z and scalar value for millions of points, which have been stitched together appropriately (by networkx if it matters) into ...
551 views

### Geodesic measurements for short distances throughout US?

My ArcGIS experience has been limited to working on large-scale maps with planar projections. I'm moving to a project in which I want to calculate the distance between pro sports facilities throughout ...