A representation of a real-world objects on a map.
0
votes
0answers
24 views
Looks like a ghost polygon. Border line can not be deleted though two feature is the same layer
I'm a QGIS 1.8.0 user.
I received broken shape file.
I found one feature which has a border line within polygon.
I tried to delete line with tool;Merger, Dissolve, Node tool and etc.
I got the ...
0
votes
1answer
11 views
Having trouble selecting polygon from existing layer (using OpenLayers.Control.SelectFeature)
I am hoping someone can point me in the right direction. I am not a programmer, so that is my first roadblock. ha
The problem:
I have an existing polygon layer and I am trying to select one of the ...
1
vote
1answer
34 views
Display list of OpenLayers Features which are currently visible on screen
I have an OpenLayers map a few thousand Points of Interest. These POIs are Vector Features rendered in a Vector Layer.
We are loading the POIs once in order to minimize load on the server.
Next to ...
4
votes
2answers
139 views
What's the difference between “Copy Features” and “Feature Class to Feature class”
I have a feature class within a feature dataset in a FGDB, and I need a copy of it in another FGDB.
In ArcGIS 10.1, I've used the "Copy Features" tool, and it looks to be the same (according to the ...
0
votes
1answer
30 views
Openlayers: Bind Text with feature (Outside Map in a Div)
I'm using OpenLayers to show routes on a map. These routes are loaded from JSON and I'm using a Vector Layer to get it onto the map - works great.
Now I want to Display all features in a div outside ...
0
votes
0answers
33 views
Create annotation layer with follow feature option set as default
I would like to create an annotation layer that has the "follow feature" option as the default. I've looked all over and can't seem to figure out how to do this from the initial annotation layer ...
1
vote
1answer
64 views
How to “Merge Selected Features” with python?
I have been looking for the answer to this question for some time now, but can't seem to find it! My problem is straight forward:
I have one layer
It contains lots of features (only polygons), say ...
3
votes
0answers
22 views
problem creating and editing features at extent edges
I'm in the process of creating a polyline feature layer of tectonic plates. I'm working with WGS-84 reference system, which means the extent is +-180 in lon, and +-90 in lat.
In order to create the ...
0
votes
0answers
21 views
openlayers clustering alternative
Is there some alternative to group features in OpenLayers? My goal is to speed-up the process of rendering. Clusters allow to do that a bit faster than rendering just plain features. So, any ...
0
votes
0answers
37 views
How to obtain the center of Vector layer created using WFS query?
I created a vector GML layer using a WFS query with a filter. The layer renders fine . However, the layer does not appear to have any features associated with it (layer.features.length is 0 )
I need ...
2
votes
1answer
61 views
Changin features' pointRadius based on the current zoom level
I need to have my features change their pointRadius based on the current Zoom level. My questions are:
Would it be possible to use Rule Based Styling techniques to overcome the problem?
If yes, it ...
1
vote
1answer
64 views
Diff operation in PostGIS/Geotools
What is the best way to perform a diff operation on Postgis features/tables or Geotools objects? Are there any automatic methods I can use? If not, what would be the optimal way to implement your own ...
0
votes
1answer
59 views
Error 001143 and Error 99999 when using Locate Features Along Routes in ArcGIS10.1
To Whom it May Concern,
So, oddly, what I need to do has worked for about half of my data but not the rest.
I'm trying to use the Locate Features Along Routes tool in ArcGIS10.1. I have a smaller ...
0
votes
1answer
65 views
Feature Layer Selections
I'm new to arcgis and arcpy, so some of my lingo and terminology may be off. I have a script that takes a feature layer as an ainput. From there I want to be able to count the number of selections in ...
2
votes
3answers
130 views
how to change color of feature to mark it as recently modified with openlayers
I am developing a crowd sourced app using openlayers. after user clicks an feature, a popup form is displayed. After clicking the save button, the data is used in processing which takes some time so ...
3
votes
0answers
70 views
How to cluster features based on their proximity?
I have around 500 features (Forests) that I want to cluster based on their proximity, and then work with those clusters. I only have the ID, and shape area of those features.
How can I cluster them?
5
votes
2answers
92 views
How to Count Features in a Feature Type in FME?
I am reading around 120 spatial tables in FME. I would like to export a spreadsheet or CSV using FME that contains the feature name (table name) and the number of records in that table.
So far, I've ...
2
votes
1answer
62 views
ArcGIS Server 10.1 - Cached tiles cut off features
I have a, ArcGIS MapServer with cached tiles. The problem I ran into is, that the features which are next to the MapServers extent are cut off.
The image below should explain the issue.
The blue line ...
0
votes
1answer
49 views
Extract polygon from several FC in one process
I've built a polygon and used Clip (Analysis Tools) in order to extract information from several FC that intersect the polygon. Of course, I used the clip tool for each feature class.
My boss wants a ...
2
votes
1answer
88 views
Problem Updating the Location of an SDE Feature Using ArcObjects .NET
I have been able to connect to an Enterprise GeoDatabase, retrieve features from it and update attributes. However I am having problems accessing and then updating the shape property of a feature. ...
2
votes
1answer
218 views
How to get all selected features from a specific feature class in C#
I am looking for a way to get all selected features from a map which belongs to a specific feature class (shape file, geo database,…).
To be more specific and to give you a real case for my ...
1
vote
2answers
307 views
Openlayers remove previously drawn polygon on starting to draw next one
Objective:
At any point of time there SHOULD only be zero/one polygon(s) on a vector layer with a polygon control. I need the previous polygon to be removed as soon as user starts drawing the first ...
1
vote
1answer
140 views
OpenLayers Zoom To Feature Help
I have been struggling with something for a while that I figured would be simple. I have a WMS layer with many (millions) polygon features. This is a PostGIS layer (WMS). Each polygon has an ID in an ...
1
vote
1answer
53 views
How to abort a layer event in Openlayers
I have a problem ( How to stop features to redraw unwillingly in OpenLayers ) that might be solved by aborting the beforefeatureremoved or beforefeaturesremoved event.
What I would like to to is to ...
2
votes
1answer
51 views
How to stop features to redraw unwillingly in OpenLayers
I have a problem where when editing features from a wfs vector layer. After some changes are made to the geometry, the feature redraws itself and the changes are lost.
Usually the problem occurs more ...
1
vote
1answer
57 views
Is there a way to perform zonal statistics-like operations with feature zone data without doing feature-to-raster transformation?
I want to use zonal statistics on Chinese counties (which can be very small) from a fairly coarse (0.5 degree) raster grid. The problem with zonal statistics is that it returns a much smaller number ...
0
votes
0answers
62 views
OpenLayers move each vector feature of layer by constant pixels away from center
I am stuffing a lot of features, each from a different layer, onto exactly the same point, so the visual result is somewhat confusing and it is necessary that some graphics have some offset of ...
2
votes
1answer
54 views
How to fix the “The inserted Ring is not contained in a feature”?
I am trying to add a ring in a feature in a shapefile. This feature is a single part feature but has already a few rings. When I try to add the new ring, I have the error message : "The inserted Ring ...
0
votes
0answers
81 views
OpenLayers set feature style
I have a standard OpenLayers features with geometry and containing some additional data. Like this:
...
data: [3 ,8]
id: 5
isCluster: true
lat: -14.018995915348285
lon: -113.59550725071185
...
1
vote
1answer
124 views
Server side clustering - cluster (feature) geometry
I am trying to implement server side clustering and show it using OpenLayers. I am using this good material as an example. As a clustering result, a get some list of features, some of them are ...
0
votes
0answers
31 views
How to “Get a Feature With Lock” in Openlayers/GeoExt?
I couldn't find any GetFeatureWithLock Methods in OpenLayers/GeoExt Docs, but I want my WFS-T to automatically lock features during editing process.
In my Ext.grid.ColumnModel, it seems like users ...
0
votes
0answers
69 views
How to set the holeModifier on OpenLayers.Control.DrawFeature to always be active?
I would like to create a button "draw a hole" taht uses by default the holeModifier functionality but the user dont need to press the cttrlBtn.
The "standard" way I guess, would be to create a way of ...
1
vote
2answers
194 views
how to check if a wms layer has no features
I've been searching the net for a couple of days to find a way, how to check if a wms layer has no features...
Let me explain
I'm using openLayers/geoserver/postgis.
I'm using a cql_filter to search ...
1
vote
1answer
270 views
Openlayers Vector Feature Popup
im trying to create a popup in Openlayers that would open when someone clicks a marker. And the marker is setup like this: new OpenLayers.Feature.Vector() and not with the ordinary marker layer.
The ...
0
votes
2answers
91 views
QGIS equivalent to “Features to Line” ArcGIS tool
I have a python script in Arc10 that uses the features to line tool. I however don't have the license to run it. I was wondering if there is a Qgis tool or process that would essentially do the same ...
2
votes
0answers
66 views
Cannot reselect polygon after modify
I've got various vector layers on a OL map.
On one layer I have a few draw controls. If I draw a polygon I can select it (the whole pop-up thing works). This also works for all the other features.
...
2
votes
1answer
114 views
Bug With Adding Multiple Controls for Selecting Features in OpenLayers
I am trying to add functionality to my WFS layer which will allow me to do:
Hover over a point and display a tooltip with information about the feature
Click on the point to zoom in on it
I have ...
0
votes
1answer
47 views
OpenLayers make feature not clickable
I have defined an OpenLayers.Select.Control - I need only hoveron and hoverout events. I have implemented it using callbacks that and it works. But I need to disable just on feature clicking ...
0
votes
2answers
641 views
OpenLayers vector layer remove all features
I have a map (using OpenLayers) and a vector layer containing features(points). Sometimes I need to remove all features from the vector layer. When I use
vectorLayer.removeAllFeatures()
then it ...
0
votes
0answers
104 views
Generating vector data (points) for OpenLayers Animated Cluster Strategy
In my web application I am going to use OpenLayers.Strategy.AnimatedCluster strategy due to the fact that I need to visualize a great amount of point features. Here is a very good example of what it ...
3
votes
1answer
228 views
change style of newly drawn points
I've a vector layer with a bunch of draw controls on it. You can add polygons, points and you can modify polygon.
Now I changed the style of the points so they have a nice pin-like image. But them I ...
1
vote
1answer
149 views
How to select features from different WFS layers?
I'm trying to select features from different WFS layers but unfortunatelly it doesn't works in my code.
This is my code:
var select = new OpenLayers.Layer.Vector("Selection", {styleMap: new ...
1
vote
1answer
65 views
How to find out what features /tags are included in an .osm or .pbf file?
I would like to load osm data into a postgis (postgresql) database. In
How to load OSM data into PostGIS preserving all Tags? there has beeen a solution posted:
Download the OSM files (in .osm ...
1
vote
2answers
72 views
Length of Feature
I have a shapefile which renders a map.
I want to calculate and preferably store length of each feature in the shapefile either using QGis or through programmatic means.
What is the best way to get ...
2
votes
2answers
41 views
XML not getting convert into list of Feature Objects
I'm getting a following XML response:
<wfs:FeatureCollection xmlns="http://www.opengis.net/wfs" xmlns:wfs="http://www.opengis.net/wfs" xmlns:Alexandria="http://www.opengeo.org/alexandria" ...
1
vote
3answers
791 views
How can I unselect a feature in Openlayers?
I am able to identify the selected features on my map using the following line:
vector_layer.selectedFeatures
I would like to be able to deselect this feature using a standalone function (not an ...
1
vote
1answer
144 views
ArcObjects bug in OID field duplication while duplicating feature class?
I have a shapefile with a column of type esriFieldTypeOID with the name FID and numbers from 0 to 5 (the first odd think is that ArcMap does not show a * next to the column name in the table view even ...
7
votes
2answers
142 views
How to remove long linear strips from polygons?
I have a polygon layer representing impervious land cover. This was taken from a land cover raster dataset. The impervious data represents all impervious surface that is not buildings or roads. I ...
2
votes
0answers
50 views
Is there a way to distinguish between digitized and pasted features?
Is there a way to tell if an added feature in QGIS is in fact a newly digitized one or a pasted feature?
I think QGIS is treating both cases in the same way, emitting the same signal:
...
5
votes
3answers
266 views
How to update feature positions with clustering in OpenLayers?
I have an OpenLayers 2.12 map with a vector layer with a cluster strategy. All the static behavior is how I want it. Now I'd like to add the possibility to update the features' position. I do this ...
