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I have a problem but no solutions. Can you help me? I have a mapfile read from shapefile: MAP IMAGETYPE PNG EXTENT 779275 2222000 788430 2233835 SIZE 800 800 SHAPEPATH "/ms4w/apps/openlayers-3.8.2/Du Lieu Ban Do Bach Long Vy/Maps" IMAGECOLOR 190 232...

I wanted to know how qgis reads shape file. Like i have choose any shape file from qgis dialog then what are the steps that qgis take to read and render this shaoe file data. Wrather it reads full shape file data into memory or it opens file connection and reads and renders at runtime? So far i...

I've got a raster in UTM55 over Australia and I would like to convert it to WGS84. Any idea how to do it ? The problem starts when ArcMap recognize it as 'Geo-Reference' only and not as UTM55, so I can't use the geographical transformation suggestion. Is there a known command ...

Edit features in QGIS and automatically sync them to mobile devices. Edit features in mobile devices and automatically sync them to QGIS. Find out more and try it out at http://www.amigocloud.com Browse the source code at: http://github.com/AmigoCloud أكثر...

I have no experience in mapping but for my research purpose I required to map certain data on Map of certain country. Data is like this : State Proportion of X Proportion of Y RestA 50 30 20B 79 20...

I've run through tutorial from ArcGIS on how to create a heat map using Spatial Analysis. Based on the example, point features are scattered around the map and we need do the following to generate heat map. Run Project Data -> Aggregate Data -> Collect Events -> Run "Hotspot Analysis" ->...

I have a typical country shapefile from http://www.gadm.org/country, which contains polygons at country, province, county, etc... levels. How can I get, in python, the name of each polygon (for example, province name for province level) and the list of points (latitude and longitude) it is...

following this tutorial I set up a Open Trip Planner (version 0.11.0) stand alone server. It works very well at http://localhost:8080/index.html and for example at http://localhost:8080/otp/routers/default/index/routes returns a routes json. Now I'd make rest api request (I'm...

I have 2 shapefiles (A and B) each with thousands of polygons. I want to select polygons from A which intersect a specific polygon from B, and save the selected polygons from A as a new shapefile. I can do this using the 'select by location' feature and 'create layer from selected features'...

I am a new user switched from Arcmap to Grass GIS 7.0.2, I am trying to work on Landsat 8 images, I can import various Bands into Grass GIS and display them, but when I do any action such as Composite map of 3 bands with raster overlay, the new layer is made and in its metadata I can see that it...

in my research I want to model the behaviour of the users in the geographic data they created. The data is crowdsourced from the different volunteers as they were asked to go through the satellite image and mark four different areas, therefore the resulting vector data have four different...

I am trying to transfer over row data from a table to columns in a shapefile table. There is a common "SA" variable between the two (i.e. the study area number) but there is more than one land use type, hence why I must create two new columns for each landuse, in order to capture the area and...

I'm looking to update the point geometry of lets say "oldFC" by obtaining the shape geometry of "newFC" and applying that to the "oldFC". I also want it to grab the value in the ID field in "newFC"and use that to search for the same ID in "oldFC" and then set the shape value. I believe I have...

OpenLayers3 has a really neat layer-spy example. The source code for the example indicates it uses the precompose and postcompose event listeners for an ol.layer.Tile: var imagery = new ol.layer.Tile({ source: new ol.source.BingMaps({key: key, imagerySet: 'Aerial'})});// before rendering the...

Can I get the current layer in control's event? L.DomEvent.on(input, 'click', this._onInputClick, this);_onInputClick:function(e){ var id =e. currentTarget;} أكثر...

For example, the city of Rotterdam represented as a hexagonal grid. أكثر...

I have a very large geowebcache.xml file that is edited constantly. Every time the system makes a change to geowebcache.xml via the REST API GWC creates a backup of the geowebcache.xml file. These backups are taking up massive amounts of space each day and aren't being rotated by GWC. I've...

I'm thinking about moving over to the S3 blobstore, but it looks like it only works with preseeded layers which isn't an option for me. Is it possible to use the S3 blobstore and have the cache built on the fly? أكثر...

This question already has an answer here: Calculating coverage of vector polygon over other polygons using ArcGIS for Desktop? 1 answer I'm working on a project where I have to create python code that...

So I want make some query based in lon/lat values of a specific place. A simple example is this: SELECT C.tipo, C.geomFROM climas AS CWHERE ST_Contains(ST_SetSRID(C.geom, 4326), ST_SetSRID(ST_Point(%x%, %y%), 4326))As default values for x and y, I put the lon/lat coordinates of my city (-44...