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

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0answers
108 views

Quick way to select by attribute and zoom to selection in QGIS

I need to visually control hundreds of points in a layer on top of aerial photographs. Using the attribute table, selecting (with column filter expression) and zooming manually is cumbersome - so I ...
3
votes
1answer
400 views

How to create and remove multiple QgsRubberBands in PyQGIS?

Currently the following code-snip works great to highlight a shape based on the 'feature' and 'layer' variables: self.rubberHighlight = QgsRubberBand(self.iface.mapCanvas(),QGis.Polygon) ...
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1answer
116 views

Select / Drag or by rectangle CMV Application

Anyone able to suggest to this noob if there is a way to change the selection option in my CMV application from individual polygons (one at a time) to an option of selecting multiple polygons at once ...
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1answer
114 views

Select the first 5 rows of a selection after reverse sorting using an attribute field in ArcGIS 10.2 with Python

I have a feature class containing 380 polygons representing sedimentary basins and another polygon feature class representing oil discoveries within said basins. My plan is to: Iterate through all ...
2
votes
1answer
356 views

“Select layer by location” tool - input feature layer Error

I am trying to use the "Select layer by location" tool, in Model Builder, ArcGis. This tools has 2 input files: "Input Feature Layer" and "Selecting Features". I cannot connect the "Input Feature ...
0
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1answer
95 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 ...
3
votes
1answer
260 views

How to remove a feature from a layer created with “Make Layer From Selected Features”?

In ArcGIS desktop, I select some features from a feature class (say with the "Select By Location" function), and then right-click and choose "Selection--> Make Layer From Selected Features"(online ...
2
votes
0answers
50 views

Query out a specific date regardless of the time, using python

Problem: I have a feature class with an attribute table with a field called Edited_Date and its data in the field is as follows: 4/8/2015 10:00:00 PM. I want to select all records that are Edited_Date ...
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0answers
100 views

Does QGIS have a dynamic spatial join select tool, equivalent to MapInfo Boundary Select?

I´m a MapInfo user, I´ve gone over to QGIS and it´s got a lot going for it, except for some simple features from MapInfo I just can´t do without. One such is MapInfo Boundary Select, which is a basic ...
1
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1answer
840 views

How to add item to an existing selection layer

I have a selection layer of about 150 properties in ArcGIS ArcMap, and I want to add one more building to it (see image, area outlined in red circle). The problem is that I missed this building in ...
2
votes
1answer
113 views

TSQL Geometry Query Requires conversion to string

If I specifically define some polygons and check for containment, I get a correct result: DECLARE @g geometry; DECLARE @g2 geometry; SET @g = geometry::STGeomFromText('POLYGON((407305 100826.5, ...
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1answer
1k 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
154 views

Selecting Untitled polygons in Google Earth

I have an area where I'm trying to mark some polygons in it and under temporary places folder they were adding as shown below. Now how do I select some of the polygons and move them to different ...
2
votes
2answers
66 views

Is a multi-database select possible with DB Manager?

I have data in two locations: geometry data (with attributes) on a PostGIS server (read only) a geometryless table on a local SpatiaLite DB (read+write) I need to select features based on data ...
2
votes
1answer
126 views

Select points North of line across polygon using ArcGIS for Desktop?

I need to select all points north of a line. I'm have trouble conceptualizing what tools would allow me to do this. Any advice? I'm in ArcGIS 10.2.2 if that matters. In the poorly drawn picture I ...
1
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1answer
117 views

SQL query within Select tool in ArcGIS model going very slow

I have been working on finding the shortest routes from a series of residential blocks (a shapefile with polygon centroids) to a a number of recreational areas. I have a total of 9 resulting OD cost ...
1
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0answers
100 views

How to relate feature class and table in ModelBuilder?

I am beginner in ModelBuilder, so I have some trouble with it. I have feature class, which contains forest stands (polygons) and table with data about age of their etages. For example, one forest ...
0
votes
1answer
65 views

Postgis - get all records (lat, Log) that contain a polygon.

I have a polygon and want to get all the points inside from a georeference table. How is the sql sentence? For example. obtain all the lat/long records that are inside the department ZZ polygon. ...
1
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1answer
82 views

How to select from selection with PyQGIS?

The expression box has a handy "select from selection" button. Is there a way to emulate this with python? I have the basic expressions down, but can't find a way to do this.
2
votes
1answer
80 views

Odd performance of PostGIS Select Query with ST_AsText

I have this query: select ST_AsText(geo) as wkt, city, street_number, street_name, street_type, street_direction, street_unit from parcels_union order by id ...
0
votes
1answer
80 views

Creating Layer for Selected Features, then Moving it using ArcGIS for Desktop?

I have a frustrating problem with ArcGis 10.1. I rarely use this so don't really understand what is wrong. In an edit session I select a polygon. I would like to 'Create Layer for Selected Features'. ...
3
votes
1answer
1k views

How to select features using an expression with pyqgis?

How can I select features with pyqgis using an expression? I tried to use an QgsExpression but the select method doesn't take it: exp = QgsExpression("'ogc_fid' = 482") cLayer = ...
2
votes
2answers
74 views

Select feature based on both its own attributes and another feature's attributes

I have two points within a polygon, each representing a specific event with a date (listed as 120101 and 120719). The polygon itself represent an event for an extended time period (start: 120626 and ...
0
votes
2answers
124 views

How to select multiple text?

I am using ArcGIS 10.1. Is there a way to select on the typed text on the screen? I have standard text not assoicated with anything that I would like to delete. Is there anyway to select all?
2
votes
1answer
601 views

How to zoom to selected feature with QGIS Python Console

I want to select a feature by ID and zoom to it. I tried the following but the canvas doesn't change. Any ideas? canvas = qgis.utils.iface.mapCanvas() cLayer = canvas.currentLayer() cLayer.select(51) ...
5
votes
6answers
756 views

How to divide a feature class into ranges?

I have a shapefile consisting of around 4000 polygons. The polygons are created from buffering around a similar number of islands somewhere in the Norwegian archipelago. Due to an error in the ...
1
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1answer
507 views

Openlayers SelectControl add multiple Layers

Heres my code to add an SelectControl with Popup for an existing layer add startup map.addLayer(window.markerLayer); window.markerLayer.events.on({ }); // Popup für Marker window.selectControl ...
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2answers
732 views

How to select island (donut hole) polygons witin the same polygon layer?

i have a dataset containing many polygons. In this dataset some polygons have other polygons (as a donut) inside of them. So those island polgons are contained by only one polygon but it originated ...
2
votes
1answer
297 views

How to query values from a list in Python?

I have a list like this... list = ['1','2','3','4'] how can I use arcpy.Select_analysis to select features that have the attributes in the list. qry = '"SECDIVNO" IN ' + str(tuple(list)) ...
1
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1answer
55 views

Automation of object selection to be printed in data driven page?

Is it possible to have the central object of each DDP to be automatically selected in order to be visually enhanced? The part of segment being the main cartographic object within the page, should ...
1
vote
3answers
2k views

How to select features of visible layers in QGIS

In QGIS 1.8 I used plugin "Select features of visible layers by rectangle" to know the layer that owns a visible feature. In QGIS 2.0.1 this plugin is no more available. I wonder if it is possible to ...
15
votes
4answers
5k views

Quickest way to select polygon by point in ArcGIS Desktop using ArcPy?

I keep thinking that I must be missing something, but there does not seem to be a tool in ArcGIS 10 to select features (in particular polygons) from a layer at a point (X,Y) location via ArcPy. The ...
1
vote
2answers
526 views

How to use an IF THEN statement in an sql Select expression?

I need to select the top 3 records from a table, but depending on an inline variable from an iteration, occasionally one of those top 3 records should not be selected and should be replaced by the top ...
2
votes
2answers
73 views

Using a selection tool will select everything

When I use the Selected Features tool and try to drag a box around a few small items it grabs everything. If i use the edit tool it will correctly select only features that are inside/intersect the ...
1
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1answer
111 views

Using Selection Sets with Python

I am trying to build a model that reads through about 30 different point feature classes and appends only the selected features to a new feature class. Some of the feature classes don't have any ...
2
votes
2answers
573 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 ...
1
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0answers
29 views

Data Transfer of a point on line using the anchor point

Can I a line feature, the anchor point touches a point feature transferred the field value, even when the point touches another line(s)? How does this work?
1
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1answer
354 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 shows the map getting data from my wms server. Do ...
2
votes
1answer
579 views

vb.net ArcObjects is there a function the same as “Select Features by Polygon” of ArcMap's tool

I want to know whether there is a function provided by ArcObjects (vb.net) to realize the "Select Features by Polygon" on ArcMap (shown below). I am using VS 2012 (vb.net) and ArcObjects 10.2.2, ...
2
votes
1answer
81 views

Select same / select similar in ArcGIS

Can a "select similar" right click (two clicks total) like in AutoCad be created in ArcGIS as an addin or something python-related? It is listed on their "ideas" page here: arcgis ideasSelect ...
1
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0answers
13 views

Making point selection tool using ArcObjects with VBA? [duplicate]

I want to make a selection tool that I can use to select a feature point in ArcGIS for Desktop so I can combine it with a form that I just made to display the form after the feature selected. I use ...
3
votes
1answer
3k 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
328 views

How to transpose reclassified field values from one polygon shapefile to identical polygons of another shapefile?

I used vector output from modeling software as clip features for ecoregion input. I reclassified and dissolved the clipped layers into 3 subunits, and now would like to transpose those simplified ...
1
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1answer
150 views

How to show a selected polygon feature, using a single marker in its center

I've been asked to replicate a map where the selected polygon is shown with a red tick/check mark: I need to tell ArcMap to use this symbol when a polygon is selected, so that un-selecting the ...
1
vote
0answers
170 views

How to combine three data extraction functions into one button?

I am looking to simplify my code. As of right now I have some code that allows users to extract GIS data in three different ways: Extract by drawn extent Extract by extent of the a county Extract by ...
0
votes
2answers
238 views

How to set Merge output as Select Input in ModelBuilder?

I'm using ModelBuilder. I tried to take the Output from the Merge tool as Input to the Select tool. But it doesn't work. I'm trying to Merge 90 Shapefile lines into one. Then "Select" some features ...
2
votes
1answer
86 views

Finding Code in QGIS Select Features Toolset

Can anyone tell me in what directory the pre-installed Python scripts for the QGIS selection tools (i.e., Select by Point, Select by Polygon) are found? I am using on a Windows 7 installation of QGIS ...
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0answers
45 views

How to determine distances of points from closest line? (Mapinfo or QGIS) [duplicate]

I have a set of points and a set of lines. I'd like to know distances of the points from the closest line... answering the question "how many points are within 500m to 1000m of one of the lines, how ...
-1
votes
1answer
85 views

Esri ArcGIS 10 - using ArcPy to select buffer line by length

I created a buffer, then converted polygon to line (around a city block). I want to select the internal line. I'm thinking since there is no uniform way that ArcGIS labels the interior or exterior ...
3
votes
0answers
173 views

Programmatically selecting features by polygon

Expanding upon this post how could you use QGis to programmatically draw a selection polygon and select features within the polygon? I have been using QgsMapToolEmitPoint(self.canvas), to find and ...