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I have a leaflet map whose size depends on the size of the browser window. I would like the zoom level to be dynamically chosen so that it is as zoomed in as possible while showing the entirety of the bounding box. Right now, I just have the zoom level hardcoded and the center point based on an...

OK, I've been labeling using the LabelEngine and simple expressions and it is working for every layer. I want to offer the option of labeling only selected features and thought it would be this simple: annotateLayerProperties.LabelWhichFeatures =...

Is it possible to use the zoom in, zoom out, and previous extent functions as mouse gestures in ArcMap? For example, say a user held down LShift then left click and dragged diagonally to the lower right. I would like that to function the same as zooming in, using the zoom in tool. Dragging in...

I have made a customization to the US Streets locator style for our application. We've changed "SR" to map to "STATE ROAD" instead of "HC" in the us_addr.cls file in the C:\Program Files (x86)\ArcGIS directory. When I run StanEdit, it maps "SR" correctly. When I do a test in ArcMap using the...

In this video we take the CSV file from the Storm Events Database (for 2014) and turn those records into points geographic points in QGIS. أكثر...

How Far Can Firefighters Service? If you want to find out just how far your cities firefighters, ambulance or paramedics can service, then you should use ArcGIS Network Analyst Service Area analysis tool. For example, [...] The post Finding Service Areas Using ArcGIS Network Analyst appeared...

Hey guys, just trying to make video tutorial about the benefits of portable basemap server, check it out, and drop your words if you find any unclear things https://www.youtube.com/embed/bl3pYyoziU4 أكثر...

I'm looking for a database that contains all (most, many...as many as it can) world airports. I know of one such set available - http://www.world-airport-database.com/database.php - but the terms state that it's for internal use only...which kind of defeats the purpose. The data would need to...

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I want to create trigger to check geometry validity in spatial table. I have a table: CREATE TABLE vec_geometry ( id bigserial is_valid boolean, invalid_reason character(128), geom geography)When I try to create trigger function I get the error: CREATE FUNCTION geom_valid_check() RETURNS...

So my problem is that i get only the last popup message from my json file.My marker builder works nice.Any thoughts will be helpful guys. Here is my code: function airports() { pointsmarks = new OpenLayers.Layer.Markers("Airports")...

My goal is to use the field calculator to replace null values. I am trying to replace nulls in the ToDate_Time with the FmDate_Time. When I run the code below the results window says that it worked and I don't get any errors, however nothing actually changes in the ToDate_Time. I am working with...

I am very new to the ArcGIS API for Javascript and am by no means a programmer. Nonetheless, I have been fairly successful at finding existing code and modifying it to my needs. That is, until now. I want something that I think should be simple and straightforward. However, despite looking high...

With Python, how do I get either the MakeXYEventLayer_management or the MakeFeatureLayer_management layer that is temporarily created added to ArcMap automatically after the tool is run, without using arcpy.mapping? أكثر...

I have 2 polygon layers, accordingly 1:10 000 and 1:500 000.I want to generalize the first layer from 1:10 000 to 1:500 000. I tried using Simplify polygon tool, and since these scales relate to each other as 1:50, I used these options in the tool: Simplification Algorithm ...

Applications of Remote Sensing for Crop Management – NDVI أكثر...

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In the picture below:The given point is C, I would like to select A and B, but not Z (which is closer to C than B but it's not immediately after in the LineString). Note that C is always ON the line but not a vertex of the line. أكثر...

I'm trying to toggle between geojson layers that were loaded using the filelayerload javascript. Right now I'm basically stuck on how to append the geojson layers to one variable once they have been loaded using filelayerload. My thought is by appending them to one variable ('overlayMaps'...