The selection of data from a database based on some criteria.

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2
votes
2answers
337 views

onSelect sometimes firing before onUnselect

I have a map that displays satellite coverage zones. Some of these coverages overlap. I am using the SelectFeature functionality to fire off onSelect and onUnselect events. However, when moving ...
0
votes
2answers
164 views

javascript function to search all OpenLayers vector features covering a pixel

I have an OpenLayers map that draws features in a vector layer. The features are selectable and have a popup on select. Unfortunately in a lot of cases the features overlap so it can be impossible to ...
3
votes
1answer
43 views

How to select an limited TOP n from a specific column in arcgis query builder

I'd like to know what is the best way to select a limited top 'n' of rows from a specific column of a geodatabase file. Currently I use a function in the query builder of the select tool (arcgis10) in ...
3
votes
1answer
425 views

How to highlight on mouseover without wiping out select control

I am trying to highlight features of a vector layer as the mouse moves over them. I can make this work. I'm also trying to make the features selectable and have a popup box when they're clicked. this ...
1
vote
1answer
36 views

Python script to select a point within a cell?

I have two features: points and grid cells (vector). I want to select a point within a grid cell (some cell do not have point) using python script and create a new feature layer with below conditions: ...
1
vote
1answer
45 views

Select polygons by attribute belonging to another layer

I'm a recent QGIS user. I have a shapefile A with a series of polygons indicating land use of an urban region (urbanised areas). Now I want to select them in relation to a second shapefile B with the ...
0
votes
1answer
40 views

Call Identify Click Function on Dropdown Change

I am a web programmer with no GIS experience and I am working with a GIS specialist with no web service experience. I am using the JavaScript API 3.7 but I am not very familiar with the API. I have ...
0
votes
1answer
103 views

ArcGIS wmslayer select feature android

i am using ArcGIS Runtime SDK for Android and it supports wmslayer but there is no sample or code for selection feature with using wmslayer. my app show the map from getting data my wms server. Do ...
0
votes
1answer
453 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 ...
0
votes
1answer
131 views

Selection not displaying all results in QGIS

I have a point layer. Of which I have just selected 15 points from the attribute table manually and say show selected attributes. Of these 15 one point does not get highlighted the rest do fine. When ...
3
votes
0answers
106 views

How to select features based upon multiple values in graphical modeler?

I'm trying to create a basic model using QGIS, the QGIS graphical modeler and the sextante toolbar. In part of the model, I need to select features based upon multiple attribute values (for example - ...
3
votes
0answers
92 views

QGIS Select Single Feature not correct in attribute table

For some reason, QGIS is not displaying the correct row of my data when I click on a feature with "Select Single Feature" or even the other select tools. I have a point database linked from mysql. ...
2
votes
0answers
102 views

GeoTools, add column in query with CQL

I'm trying to query the database (DataStore) and want to let the datastore calculate a value for me. In SQL I would do it like this: SELECT name, ST_Area(ST_Intersection(the_geom, ....) AS myValue ...
2
votes
0answers
208 views

Select only features within the layout view

I want to create a tool layer in ArcGIS10 that will select only features within the current layout view so that I can add the attribute table to the layout and only show attributes for the selected ...
1
vote
0answers
34 views

select remove layers not working second time

http://www.youtube.com/watch?v=qxVO0tFdiuA&feature i captured video. You can watch. Now i explain my problem. Firstly, when i create popup and in popup menu when i call function and select ...
1
vote
0answers
65 views

How to select and highlight feature by attribute

I have the below code which does a select by shape on my arc map how do I achieve this with attributes 1.The map has only one layer 2.There is a filter for the attributes on features Below is the ...
0
votes
0answers
19 views

Select feature or graphics for editing geometry

i research about selecting feature or graphics for editing geometry and i found geometry editor sample but in this sample only you can add new feature after adding, you can not select and edit. Now i ...
0
votes
0answers
14 views

Assign feature actions in QGIS--too many actions run at the same time

Using QGIS, I'm assigning actions to a polygon layer whose features are based on extents of hundreds of maps of a variety of files (including DWG, DGN, PDF, jpg, etc). However, since some of the ...
0
votes
0answers
35 views

Selecting WMS Layer on hover - Error Openlayers.REQUEST.GET params

I have wms baselayer and wms shapefile. I want to select the wms shapefile feature while hovering and change its color. I tried SLD Select and adding Selecting and Hover Vectors separately, but ...
0
votes
0answers
21 views

Selecting features through a many-to-one relationship

I want to select multiple counties based on the occurrence of a species present within them. I have a County polygon layer with CountyName as an attribute, a flat table called tblSpCnty with the ...
0
votes
0answers
36 views

How to refresh child data element of shapefiles through iterations

I’m trying to automate some processing steps for several shapefiles that are contained within multiple subfolders. I am able to iterate through the subfolders, but the model won’t iterate through the ...
0
votes
0answers
80 views

Refresh WMS Select Control

I use WMS layer in my application and I need to refresh it with new parameters. I did refresh the WMS layer correctly but I couldn't find a way to refresh its select control. So I got the new layer ...