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

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46 views

River flow downhill

I have polylines (rivers) with assigned elevations. I need to ensure they are flowing downstream and indicate which vertices are incorrect. I do not have 3D analyst, spatial analyst, or network ...
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70 views

“Points To Raster Tool”- Output pixel values differ from original point values

I am trying to convert an evenly spaced set of points to a raster using the "Points To Raster" tool in 10.1. Problem: Generally, the raster makes sense, but in some areas the cell values differ quite ...
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212 views

How can I find which point is furthest from something?

Here is an example of what I am looking to do: Which town in South Dakota is farthest from a Hospital? Which tool would I use to be able to do this?
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54 views

How to get attributes from line-polygon where points are snapped on, into the point-layer?

I have a SQL Server spatial table with point-objects, the points are set by snapping onto a line SQL Server spatial table. so the points are georeferenced on the line. How can I get the attributes ...
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57 views

Using Geoserver

I am new to GIS and interested in using Geoserver. I have had a look at tutorials and read some books on this but still feeling clueless. I intend to use C# to accomplish some tasks eg, plot points on ...
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279 views

OpenLayers - Add points at vertices of line while drawing line

I would like to create points while I draw a line on my map in OpenLayers. That is, at each vertices of a line and at the end points there is a shape like a square, circle, or diamond. I have this ...
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82 views

Authoring map with advanced gradient symbol for ArcGIS web service?

I need to prepare a web service which will display the gradient of polygon points values. It has to look just like in this picture: link to the picture (please ignore the arrows). Each polygon is ...
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875 views

Splitting polyline by points using ArcGIS 10.2 for Desktop?

I have a layer containing a curved polyline and I would like to split it at multiple point locations, which I have in another layer. In ArcGIS 10.2, I can do this with the tool "Split Line at Point". ...
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40 views

Creating contours from partial data set

Is it possible to create contour lines based on part of the points and not the entire dataset?
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78 views

Geoserver-WMS-problem when zooming point layer

I need help. I would like to have no blank(white) space between points when zooming in WMS geoserver. Any idea? Greetings, Andrew
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214 views

How to change icon symbols in QGIS? Can icons have JavaScript animations?

There are a lot of SVG files located in the "QGIS Dufour" Program Files folder on my PC. I was thinking that I could find the symbol that I want to change in the GUI in this listing in InkScape so I ...
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132 views

How to auto-fill a new point vector in a vector layer?

When I work in-situ I manually add points in my shape-file. I would like that when I add a new point some attributes would already filled with values calculated programmatically. E.g in my first ...
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285 views

Divide polygon based on points for even distribution

If I have a point layer, how can I create a polygon that includes all of the points and divide that polygon into n sections in which each section contains an equal number of points? Preferably in ...
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299 views

How to perform Shapefile to Raster with ArcMap 10.1 while preserving resolution and values?

I am new to ArcMap and I would really appreciate some help. I want to create a new raster using a value in a column of a point shapefile. I have a point shapefile with points equally spaced and each ...
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214 views

WMS: point “pointer” symbol with offset - getFeatureInfo search area slight mismatch

I'd like to ask what ways there might be to adjust a point's getFeatureInfo search area so that it matches a "pointer" (i.e slightly offset) symbol. We are running GeoServer 2.2.0 (part of an Opengeo ...
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61 views

windows function with points in a mixed (multipoint/point) table

I have a table comprising multipoints (tracks) and points (stops between tracks). there can be several consecutive multipoints. now, i want to merge any points lying very closely to each other ...
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707 views

How to calculate average value within a polygon(in Qgis with Python)?

Now I have a point and polygon shapefile and I want to calculate the points' average value within each polygons How to do it with python? I tried to find out but google gives me a lot of raster ...
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171 views

Join .csv file and .shp of georeferenced points

I have georeferenced a map and saved a selection of some points on the map. These points are cities of departure and arrival and I want to join the .shp with a and excel .csv with the information of ...
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394 views

How can I move two layers at once in QGIS?

I'm trying to move two digitized layers, one containing points, the other polygons to a different location at the same time. QGIS doens't seem to allow this. Even if I select both layers and features ...
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61 views

How to obtain and compare neighboring point attributes? (ArcInfo)

This question is kind of hard to explain in a short phrase, so this is what I'm talking about. I have access to an ArcInfo 10 license. I have a layer of point features that all have a "Team" ...
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68 views

Prediction a point position

I don't know if you could help me in this: I have 7 points (x coordinate is known and variable) (y coordinate is known and fixed) each point represents a position of the same object in a specific ...
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109 views

Esri ArcGIS plot point

I have created a java function to plot the points on the map, and I need to pass the x-y coordinates and the taskevent as the parameters. I would like to ask what should be the input parameter for ...
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383 views

Create IPoint with Lat/Long in decimal degrees and Z in feet

I have written an ArcMap v10 AddIn that reads a folder of geotagged JPEG's and creates a new feature class where each point is the geotag information from on of the JPEG's. The issue is: The GPS ...
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369 views

ArcGIS10 Split Line at Point Failing due to Dataset size

Im having an Issue with my Split Line at Point tool. Seems to run if lucky for 700 entries before arcmap/arccatalog falls over. Debugging of the errorlog has produced nothing. The total size of the ...
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556 views

Error creating IPoint (ArcGIS 10) - Invalid use of New keyword (VBA)

I have some code I wrote in 9.3 that (mostly) works in version 10. I have a UIToolControl that buffers a user-input point based on a mouse click - nearly identical to the sample. This used to work ...
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79 views

Point features disappear when adding new data

Recently while adding features to a point layer i noticed that once i had saved my edits the already existing points disappeared. Although not visable on the map all of them and their data were still ...
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431 views

Moving GPS Points with a VB script - Bearing works well but distance is wrong

I am using a script I found online created in 2003 by one of the commentators here. It is a great script and exactly what I have been looking for and I'm very glad to have found it. It simply takes ...
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283 views

getting the correct location data with user input

I have some code others have provided, which I modified in order to run a Python script in a toolbox in ArcMap which accepts user input for a starting point, distance, and angle to create a shapefile ...
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9 views

Set of points to multi polygon with specified distance

Is there any algorithm that can transform set of points to the set of polygons with defined maximum distance between points, especially I wonder if it is possible for inner polygons? Please, consider ...
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27 views

many points to many line segments - and retain attributes of points

I would like to take a feature class of 22571 points (with time (in seconds), lat/lon and various other attributes but for now I care most about the ON/OFF attribute) and connect those points into a ...
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23 views

How do I reassign a point's XY value in ArcMap 9.3?`

I have a rectangle polygon I drew on a map and then added points to it's corner and midpoint. I drew the shape (representing a forest sample plot) where I thought it was best located based on 70 year ...
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14 views

How do you add an image to a point location in ArcGIS 10.3?

I have a set of point locations (groundwater wells) and a graph of groundwater elevation for each location. Is there a way to show the graphs at their respective locations on the map, without having ...
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57 views

GeoServer SLD Filter rule before PointStacker transformation

I'm trying to apply a filter rule in an SLD, before applying the GeoServer PointStacker transformation (which groups points that are too close to distinguish their icons). This transformation is ...
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158 views

How to add marker dynamically when clicked on map using OpenLayers 3?

I'm trying to add point (marker) on map click with custom style using OpenLayers 3. I tried this code, but nothing happens when user click on the map: var map = new ol.Map({ layers: [ ...
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40 views

How to extract cross pattern in point data based on heading field, automated using ArcPy

I'm trying to automate a process to identify and remove a cross pattern in point data, as seen below: This picture shows the points colored by heading (degrees from North), with the exception of ...
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75 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 ...
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18 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 ...
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65 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 ...
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59 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 ...
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27 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 ...
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38 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 ...
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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 ...
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82 views

Creating an interactive map that uses a point shape file to display information

I have a raster map, a PNG of a fantasy map, which has points on it. I want to create a interactive map that displays information (text) whenever you click on a point. An example of what i'm after ...
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17 views

How to access point maker

I have been trying to create random points on ArcGIS, my problem is I want them to be circular and have uniform distance between them, was reading somewhere and found out there is a script called ...
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63 views

How to load points in a SQL server polygon table?

I have a spatial table in SQL server which stores both points and polygons geometry and I am using the table to return geoJSON for API calls. I want to load some points to this table with shapetype ...
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32 views

QGIS and Ghydraulics: add attribute fields from intersecting points to line layer

I have lines (pipes) and points (junctions). There is one point at each connection between two lines, so that every line has a start and an end point. Now I want to fill the attributes "start point" ...
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63 views

Multiple points showing as single point in ArcMap

I have a shapefile containing numerous point features with different coordinates showing the locations of schools for an area. When I add this file to a blank map in ArcMap all of the separate ...
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29 views

Defining and exporting a path from discrete points in QGIS

I'm working with elevation data (NED, SRTM, etc.) in QGIS and I'm wondering how I might be able to pick a set of points from my map and export the coordinates to something like CSV. For example, I'd ...
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106 views

Points nearest to polygon: nearest to edge of polygon or centroid?

When using ArcGIS and performing a Spatial Join of points to polygons, there is an option to choose the closest point. Is the point that is chosen closest to the edge of the polygon or to the centroid ...
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36 views

Point data aggregation for choropleth

I have a sizeable amount of geotagged point data (>1M) and am looking to create a choropleth map of point data density based on boundaries I have in a shape file. I've added this to a fusion tables ...