In computing an event is an action that is usually initiated outside the scope of a program and that is handled by a piece of code inside the program

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2
votes
1answer
654 views

How to keep bound popups from opening on [click]?

I am working on a map application which creates and binds popups on markers and polyline objects. The popups are created and bound lazily, i.e. ad-hoc when a user clicks on a specific object. The ...
7
votes
2answers
3k views

How to trigger registered events in Openlayers?

I am building a web application where I need to compare 2 different maps of the same area, I need for the events on one map to automatically be triggered on the other map. I have so far: ...
1
vote
0answers
2k views

Why does map click listener not work with touch?

I deleted this question which I posted a few days ago, thinking that I would be able to solve it. But after struggling for some time, I think I really need some help. The problem is this: I am testing ...
7
votes
3answers
2k views

How do I stop event propagation with rightclick on Leaflet marker?

I didn't find a rightclick event in Leaflet markers so I started listening to the mousedown event. In the method that resolves this event I check if (event.originalEvent.button == 2) { ...
2
votes
1answer
562 views

Why does destroying a popup cause a “this.events is null” error?

I am trying to create dynamically generated popups in OpenLayers with a mouseover event. According to the documentation, it is recommended that the popups be destroyed after use to avoid memory leaks. ...
2
votes
1answer
2k views

How to record a base layer change event in OpenLayers?

The OpenLayers.Control class possesses an eventListener property which could be used in the layer switcher control. I am not sure how to make use of it to detect a base layer change event so that I ...
2
votes
1answer
937 views

How to suppress moveend event while switching the base layer?

I have created a map that contains a two base layers (Google Street Map and Open Street Map). A moveend event listener is registered to listen for any map movement which would perform a function call ...
1
vote
1answer
477 views

How to trigger a map click event?

I have a map with some markers. On clicking a marker, a popup would appear and on clicking the map, any visible popup would be hidden. I want to hide any currently visible popup upon clicking a marker ...
1
vote
1answer
550 views

openlayers trigger hover event

I have a bunch of tracks on screen in a vector layer. I used some hover and select styles in the layer styleMap and these styles are properly triggered by: var highlightCtrl = new ...
2
votes
1answer
1k views

OpenLayers: add a listener to a single polygon

I want to add a listener to a single polygon. Currently, I am trying to add one that makes a polygon opaque when you click on it, but I should be able to add any general listener. OpenLayers.Layer has ...
2
votes
0answers
70 views

How to prevent the user from moving the feature?

I want to prevent the user from moving the feature in ArcMap when editing. I used OnChangeFeature event but it does not work. void m_editEvents_OnChangeFeature(IObject obj) { ...
2
votes
1answer
124 views

How to use IObjectClassEvents?

I need to use IObjectClassEvents in my project. I don't know how to start, can any one give me a simple explanation, or an example in C#.
3
votes
1answer
78 views

How to prevent user from deleting a feature?

How can I prevent the user from deleting a feature? void m_editEvents_OnDeleteFeature(IObject obj) { // Code }
3
votes
2answers
5k views

Is there a On Map Move event in OpenLayers?

In my OpenLayers web app I have registered an onmousemove event which performs certain functions. What I am really after though is a way to register and handle the user panning or zooming the map. ...
2
votes
1answer
124 views

How to cancel the edit session?

I want to prevent the user from starting an edit session under certain conditions. How can I do that? void m_editEvents_OnStartEditing() { // Code }
1
vote
1answer
116 views

Listen to edit events

I recently started working on ArcMap. I want to make some changes to the edit tools. For example I want to prevent the user from using the sketch tool when the time is between 1pm and 2pm But I ...
4
votes
1answer
4k views

Showing menu based on right click on Point Geometry in Javascript

I have implemented a vector layer(using javascript) in open layers which is having point geometry. Now my requirement is to show menu just besides with the point whenever we do right-click on ...
2
votes
1answer
1k views

OpenLayers popup - random losing click event, have to refresh page

I have a OpenLayers, Mapfish, GeoServer map on a webpage. I am using OpenLayers.Popup and getFeaturesInfo to get the attributes from GeoServer (2.1.3). I have several wms layers with markers and ...
5
votes
2answers
481 views

How to filter the MouseWheel event in a QGIS C++ plugin?

I’m developing a C++ plugin for Qgis and I want to filter/override the mouse-wheel event. I created a “maptool” to select a polygon feature on a vector layer, the feature has two attributes : an id ...
2
votes
1answer
196 views

Streaming polyline while adding records to related tables in ArcPad

I'm designing an ArcPad solution for our field staff; we collect point data and use lines to identify the amount of 'effort' (and to maintain accountability). While collecting a 'streaming polyline' ...
1
vote
1answer
704 views

ArcObjects - Listening for Map Click in ArcMap

I have a seemingly simple requirement that is causing me all types of headaches - listening for a map click event in ArcMap via ArcObjects. Simple as that, just tell me when the map is clicked (and ...
1
vote
0answers
119 views

ArcObjects - IGraphicsContainerEvents_ElementAddedEventHandler Unregisters After a Few Fires

I am using IGraphicsContainerEvents_ElementAddedEventHandler to do stuff with graphics added by users in an ArcMap session using the standard drawing toolbar. As the code snippet below shows, its a ...
8
votes
3answers
3k views

ArcObjects (ArcGIS for Desktop and C#): How to cast between the ArcMap COM UI and my custom .Net UserControl objects?

I'm creating a utility to run in ArcGIS for Desktop using ArcObjects (9.3.1 SDK) and C#.Net. My prototype involves a toolbar with two comboboxes and a tool. The first combo selects a layer in the TOC, ...
5
votes
2answers
5k views

Will mousedown events fire with Touch events on OpenLayers mobile?

I can't get the mousedown event to fire on a mobile device when I click on a marker. I'm using openlayers 2.11 with TouchNavigation. The mousedown event fires just fine in Chrome on my Desktop. Are ...
2
votes
2answers
891 views

ArcMap - Strange Behavior When Trying To Wire IActiveViewEvents in IDockableWindow

I can't seem to wire up IActiveViewEvents for an IDockableWindow. I am using a straight out-of-the-box IDockableWindow which inherits BaseCommand. The snippet below shows what I have added to the ...
1
vote
2answers
4k views

SelectFeature not working in OpenLayers

I'm still sort of new to openlayers, but I've been able to set up a map which reads in a KML, loops through the different regions contained therein, and draws those polygons on a vector layer overtop ...
2
votes
5answers
4k views

Event listeners after each plotting of a point of a Polygon Vector in OpenLayers

I am quite new to OpenLayers. I have a polygonLayer for users to draw polygon vectors. The plotting feature is working fine. polygonLayer = new OpenLayers.Layer.Vector("Polygon Layer"); ...
5
votes
2answers
401 views

ArcObjects Class Extension - core events not being fired by an editing tool

I think I've just hit a major limitation with how ArcMap (10) deals with class extensions on a Feature Class but I would first like to make sure I'm not missing something or seeing a bug. I have a ...
0
votes
0answers
81 views

Which events are fired when the mapscale changes? [duplicate]

Possible Duplicate: How to catch when scale is changed in ArcGIS? Are there any events which are fired when the user changes the mapscale by zooming? What I finally want to do is limiting ...
3
votes
2answers
2k views

How to list ActiveView SelectionChanged event delegates in ArcObjects .NET?

I currently have an issue in an ArcObjects ArcMap add-in where my event handlers are seemingly-randomly being unhooked from the event I'm trying to catch. I've spent some time looking for a way to ...
4
votes
2answers
6k views

register event “loadend” on layer

I'm trying to register a listener event on "loadend" for my google maps layer on OpenLayers. But for some reason it's not firing. There must be something small i'm overlooking. What is wrong with my ...
4
votes
3answers
631 views

Type of event dispatched when the user double-clicks the map

I am currently working with a drawing tool for the ESRI Flex API, and every time I double-click the mouse a map service will perform a measurement and display the length of the line that I am drawing. ...
3
votes
1answer
192 views

How to release Events

I want to use the OnCreateFeature-Event to combine it with other actions. So I use Events.OnCreateFeature += delegate(IObject obj) { LoopTools_OnCreateFeature(obj); }; to listen to this event. ...
3
votes
2answers
1k views

Counting Events Per Polygon Feature

I would like to calculate the total number of events within each feature of a polygon using a dbf file and a polygon shapefile. Is there an easy way to automate this so I can then produce charts per ...
4
votes
2answers
5k views

How to implement mouse down event when the user clicks on the map?

Newbie programming in C#.net. I have a very simple desktop application in in arcmap. I'm trying to get the coordinates when a user clicks a button on a toolbar and when click the map. The toolbar is ...
15
votes
5answers
1k views

GIS Day function ideas?

Given that today is GIS Day I was wondering what people had run/been to/ had ideas for as function for GIS day. I have seen a few I have liked but any other stories would be awesome.