A geometric element defined by a pair of x,y coordinates.

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2
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2answers
85 views

Densifying polyline to generate points at set distances using ArcMap?

I have a polyline, that I wish to create points along using ArcMap 10.2.2. I used the methodology suggested here, but I do not seem to be able to generate the points at the set intervals I desire. ...
0
votes
0answers
93 views

How to measure nearest neighbor in miles or kilometers between two point layers using QGIS?

I have tried to look for an answer to this question, but cannot find an adequate solution. I have two point layers. One is of locations by lat/longs of homes in Louisiana. The other is a layer of ...
2
votes
1answer
49 views

Can I use areal mean pixel value in raster for input to Extract Values to Point tool

I have a dataset consisting of a point vector file (plant leaf area) overlaid and georeferenced to a raster file (soil moisture) that I want to use as inputs to the Extract Values To Point Tool in ...
0
votes
0answers
19 views

How do I subset a points dataset along roads so that every other point is selected?

I have a large dataset of about 5000 points. The points are currently all about 0.5 miles from one another. I want to subset these points so that I get every other point and the distance between ...
1
vote
1answer
61 views

How can I get the value of a point that falls between 2 points of another layer?

How can I get the value of a point that falls between 2 points of another layer? I have a Shapefile of points with values representing the distance from an origin (blue in the example bellow) at ...
0
votes
2answers
103 views

Point feature plots in wrong place in QGIS?

I am using QGIS 2.12 on Mac OS X Yosemite 10.10.5. I have a single point with given latitude and longitude. I want to create a new vector layer (shapefile) which will plot one point on the map ...
1
vote
1answer
122 views

2D point cloud to polygon

There was similar questions, but not exactly what I need, so I am asking here. Is there a way to create polygons from these points in the picture? >> The result I want to achieve in this picture >> ...
0
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0answers
76 views

How to calculate Spatial Autocorrelation of grouped points in ArcMap 10.2.2

I have 32 points uniformly distributed with 7 attributes that comprises continuous values. I used the Grouping Analysis tool in ArcMap 10.2.2. I set 2 groups that have clear differences and are also ...
0
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1answer
45 views

Adding Points to existing attributes [duplicate]

I have a table of 150 records which I was able to geocode except for 21 points. I'm able to manually geocode the rest of these 21 points. Every time I add the point, it creates a new row (which I know ...
2
votes
1answer
112 views

Combine digital elevation model (DEM) with point layer (QGIS)

I have two layers: The first one is a digital elevation model (DEM) as GeoTiff. The second is a point vector layer (start and end of street segments). What I want to do: Add elevation information ...
1
vote
1answer
24 views

Specifying rectangle symbol with height/length based on attributes values in mapfile?

I need to specify a rectangle symbol in a mapfile. The symbols should be of varying dimensions based on height/width values stored in a table's attributes. Is it possible to do something as with the ...
1
vote
1answer
28 views

inserting value from raster into overlaying point field

I am using ArcGIS 10.3 for Desktop. I am using an etopo bathymetry map and would like to determine the depth of ~50k points in another layer. I am sure there is a simple tool for this but I am ...
4
votes
1answer
142 views

Create uneven, different diameter ellipse around point in QGIS 2.10

I am trying to make an attribute to show the uneven spread of the crown of a tree using the four cardinal points. I can use a buffer to show one feature, in this case a root protection area. But I ...
2
votes
0answers
39 views

Create polygon layer from point data with number attribute where polygon encloses n% of point data attribute value in QGIS [closed]

I have two sets of data, one is the CodePoint Open with the location of all of the uk postcodes, the second is from online form data from which I've extracted the postcode and telephone area code, and ...
3
votes
1answer
36 views

Displaying nearby locations as 1 point (QGIS 2.8 Wien)

I am using an excel file to store all my locations and their attributes. This excel file contains coordinates of the same location measured on different dates. This means that the coordinates are not ...
5
votes
2answers
399 views

How to extract value from a raster based on lat and lon?

I have several netcdf files that I can read using the netCDF4 library in python. The data is gridded in 4320 rows and 2160 columns. I also have a list of lat/lon (in decimal degrees) and I am trying ...
1
vote
2answers
635 views

Distance between points along polyline ArcGIS for Desktop?

I'm using ArcGIS 10.3 (Desktop), and I'm trying to measure the distance between points following a path determined by a set of polylines. Hand measurement is not a viable option-- there are ~7500 ...
1
vote
0answers
54 views

Distance Analysis from single point to multiple points on vector layers

Is it possible to do the following in QGIS: Create a text file that plots the distance from a single point (stored in one layer) and multiple points (stored in another layer). I have tried to use ...
0
votes
0answers
61 views

Finding distance and angle to points in point buffer, from center of buffer?

I have a number of buffer circles that contains some interesting points (the green points in the picture). I would like to find out the distance and angle from each buffer center (that I have in the ...
0
votes
0answers
28 views

How to disperse points in ArcGIS for iOS?

In the application I'm developing, a lot of points can end up having identical (x,y) coordinates. I'd like a way to spread them out so that a user can interact with them all, but the only things I've ...
2
votes
2answers
127 views

Convert point to line

A little background: I recently completed a long bike trip and used a GPS to gather data during the ride, including average speed and elevation loss/gain. I imported the data into QGIS. These data ...
4
votes
2answers
180 views

Oil and gas well symbology for geoserver

I need to symbolise an oil and gas well dataset in geoserver. I have the dataset symbolised in ArcMap using the standard esri well symbols. Is there an easy way to convert this esri layer file into ...
0
votes
1answer
49 views

Geotagged HTML Pop in PDF

I am using ArcGIS to add geotagged images as points to a map which allows me to click on the point and an HTML popup comes up with the photo. http://www.esri.com/news/arcwatch/0912/import-geotagged-...
1
vote
1answer
102 views

How to add points to line at every polygon/polyline intersection and have attribute table including distance of new line sements

I am working with polyline shapefile. I need to add point data at every intersection of polyline/polygon which was no problem->simple intersection. Problem is, points were not added to the ends (...
1
vote
1answer
46 views

Adjusting sampling points to closest land surface QGIS

I have many sampling points in mangroves of Southeast Asia and am trying to extract climatic data for each using the WorldClim dataset. However, many of the points fall on areas classified as "water" ...
2
votes
1answer
203 views

How to prevent markers overlaping other markers on map using QGIS 2.2.0

I have points with similar coordinates and displaying them on a map of Latvia they overlapping. How can I display all the points using QGIS 2.2.0 like in Finnish map?
2
votes
1answer
38 views

How do Wikipedia maps add a coordinate point to a base map?

On wikipedia pages for localities, there is often a map on the right side of the page in the introduction, and the map is tagged with the point of the locality. For example, see below: https://en....
2
votes
0answers
65 views

Equal distance points on polylines

In QGIS 2.10.1 I want to create a point layer out of my polyline shapefile and all the points shall have a fixed distance (in meters) while I use WGS84 as coordinate system. So what do I use for this? ...
4
votes
1answer
123 views

How to interpolate missing data from neighbours in PostGIS?

I have a dataset with point data within a given country. Let's say my dataset looks somewhat like this: tree_id | species | age | geom ------------------------------ 0 | Ash | null| ... ...
1
vote
1answer
55 views

Is is possible to extract aspect values from raster based on vector point locations?

Looking for ideas on a workflow in QGIS: I have an Aspect raster layer and a point vector layer from the same area. Such point data represents localities of interest for a particular study. Is there ...
3
votes
2answers
94 views

How can I display points with points displacement renderer without circleoutline

I understand the point displacement, but I would like to display the circle without the circleoutline. Even when I change the "circle pen width" to 0,00 it displays a fine line. And there is no ...
4
votes
1answer
332 views

Calculating attribute for network distance between multiple points in ArcGIS Desktop?

There is a road network and two point feature classes. For one feature class, I need to calculate a field to hold road (not Euclidean!) distance from every point to a certain point in the other ...
3
votes
1answer
109 views

Clipping points by a polygon attribute in QGIS

I am trying to clip a point layer with a polygon layer. My polygon layer has multiple polygons (e.g. country with different states). I am wanting to clip the point layer based on the different states ...
0
votes
1answer
47 views

Line sections between points in ArcMap?

How to get shape with lines between points which have to lay on the same line entity?
0
votes
2answers
42 views

Calculate how many points a route goes through

Is there a way in which a route mapping interface can determine how many points a certain (user created) route has 'touched'? In the sense that firstly: I have a set of markers or points (e.g. ...
1
vote
2answers
179 views

How to select points within a certain distance from a line?

I have a file with a points layer and a lines layer. I would like to select only the points that lay within certain distance (a couple of meters) of the lines. Is there an easy way to do this? Or ...
0
votes
1answer
117 views

How to insert long/lat value in postgis database in the form of Point(x,y)?

I am having some trouble in inserting long/lat in the form of point. Currently, I have array of long/lat value and which I want to store into database in the form of point. However, I am unable to ...
1
vote
2answers
89 views

Switch selection of specific polygon

I'm using ArcGIS 10 desktop version. I have a number of polygons, let's say 300, in a layer. Each polygon contains information of schools, ranging from 100 to 250 points, in a separate point layer. ...
0
votes
1answer
60 views

Adding a point-shape file to a raster image with no spatial information

I have a raster image (JPG) of a fictional map from a fantasy book. I want to add a point-shape file in order to show main events from the book upon the map. My map has no spatial information (as ...
1
vote
2answers
486 views

How can I represent Time in GeoJSON?

I'm modelling a bus route as a series of waypoints. Most of these waypoints have just a latitude and a longitude and represent points along a road. However, when the bus gets to a bus stop, the ...
2
votes
1answer
501 views

How connect points with lines in QGIS?

I need to connect points with lines in QGIS. I am in this fresh out so I'm not sure how to do it and I need a little bit help with this. I read several posts i and tried to do something about it but ...
6
votes
2answers
329 views

How can I average point features spatially in QGIS?

I have a GPX file with track points and I want to average the points spatially to improve accuracy of the point feature. I can't just make a polygon and find its centroid as the number of overlapping ...
2
votes
2answers
176 views

How to visualize updating lines of bearing from a point

I'm working on a project where I need to visualize a constantly updating line of bearing from a point, based on degree of rotation around that point. My plan is to design a line feature with an ...
2
votes
1answer
107 views

Create points symbology with more than one parameter

In QGIS i would like to create symbology for points layer where the symbology will take into account more than one parameter (currently two). i.e.: My points layer has street names and house numbers ...
0
votes
0answers
39 views

multiple attributes in csv file to raster

I have a several large comma separated text files each with multiple attributes. Each text file is about ~2.9 GB with 21 million lines. Each line contains X, Y, VALUE1, VALUE2, VALUE3, etc. The X and ...
5
votes
1answer
266 views

Why aren't there LiDAR records in some black and white parts of the scene?

This is the actual scene: This is the corresponding LiDAR scene: The LiDAR data is from xyz file. The questions are: Why are there no points for the dark squares on the checkerboard as well ...
0
votes
1answer
58 views

How to remove points in QGIS?

I have way points of my field work, but some of points I saved are not related to my project. How can i remove them in QGIS?
3
votes
1answer
77 views

Find all points within 5m with same name on large dataset

I have a large dataset (500,000 rows) in cartoddb which contains data like this.(abbreviated for easier typing) cartodb_id | count | lat | long | name | the_geom 1 ...
0
votes
0answers
24 views

Space points out a minimum distance along a line

I have just snapped thousands of points to the polylines they share attribution with but a lot of the locations overlap slightly. I would like to create a minimum distance between points. I DO NOT ...
2
votes
1answer
34 views

.net arcobjects delete point feature by one of the attribute value

What I want is to delete a feature by objectID, currently I have got the objectID of the related feature, but I have no idea how to delete the feature, can anybody give me some advice? The ...