An object-oriented cross-platform programming language developed by Sun Microsystems.

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0answers
50 views

autocomplete polygon function with geotools

i'm using geotools to develop some GIS features, i don't know how to implement the autocomplete polygon function using Java code. does any one tried to do it before?
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0answers
129 views

Is it possible to run ArcGIS Engine 10.2 in Java 7?

Does anyone know if it's possible to run ArcEngine 10.2 in Java 7 ? Currently in Java 6, I need to use both ArcEngine 10.2 and Java 7 functions in the same standalone program. (I don't talk about ...
3
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1answer
933 views

converting/parsing geojson into com.vividsolutions.jts geometry

Does any has any experience with converting string geojson into com.vividsolutions.jts geometry object (point, polygon, etc). Maybe there is some java library I cannot find. Greets!
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0answers
138 views

Nearest road in the vicinity of a point without queries (openstreetmap)

I know that many similar questions about map fitting have been asked. Everywhere there were answers about sql queries like this: SELECT ST_AsText (ST_ClosestPoint (pt, line)) AS cp_pt_line, ...
2
votes
2answers
465 views

Are there any web services providing country border data?

I am an Android developer (working in Java) and want to write a geographical quiz game. The quiz will need a list of countries and will randomly choose one to highlight on a map (probably using Google ...
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votes
1answer
169 views

how to use MBTiles4J

I got a MBTiles Server written in Java here. https://github.com/jtreml/mbtiles4j I am new to java. Can anybody briefly discuss how it works. I want to create an eclipse project with this. Specially ...
3
votes
0answers
322 views

Convert land-based camera image pixel x,y to ground lat/long or x,y,z

I have a number of cameras at various known locations (x,y,z) and directions that are above ground about 20 feet pointed at different ground locations about 100 feet away from each camera, and whose ...
1
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0answers
69 views

How to make a custom properties dialog for a custom text background

I'm developing a custom text background in ArcObjects like in this example. I would like to know if it is possible to make a custom properties dialog to set up parameters of this text background. It ...
0
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2answers
287 views

How can I get the map data frame fill the page layout (ArcObjects java)

I need to export a map for several extents (typically states or regions of a country) to PDF. I have a MXD document that I open in an ArcObject console program.I manage to set the PageLayout to A2 ...
0
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2answers
128 views

How to get the current map from a geoprocessing tool execute function?

I'm making a geoprocessing tool with the ArcObjects SDK Java 10.2. I need to modify labeling colors of a layer of the current map. Is it possible from the execute function to access the map currently ...
1
vote
0answers
48 views

alternative to mapClickEvent

I use gwt-openlayers lib in my GWT app. I have added a drawFeature control and now I want to show a radius of circle while I draw a feature. Now it looks like this: ...
1
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0answers
240 views

Any good open source GIS library or API for Mobile [closed]

I am looking for GIS library for tracking on mobile application similar to ESRI mobile library but should be open source and freely customizable preferable java base. I am making Android app which ...
-2
votes
1answer
41 views

Good place for starters to develop ArcGIS map [closed]

I am new to ArcGis 10.2. I want to develop a java application which displays map. Please guide me , where to start looking thanks
1
vote
1answer
83 views

How to create a value-by-alpha map in Java?

Someone has post similar question as mine before : similar question But my objective is slightly different. I have a shape file (.shp) (a country map) I would like to write a piece of java code to ...
1
vote
1answer
153 views

How can I use the proj string in java code?

I want to do projection from UTM/oblique mercator CRS to WGS84. And I know the solution to use a proj.4 string in commandline like+proj=omerc +lat_0=51.4 +lonc=7 +alpha=-10 +k=1 +x_0=0 +y_0=0 +gamma=0 ...
0
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0answers
433 views

Draw postgis geometries in google maps api

Postgis have a base with a table of data lines and other points. I'm doing a java applet to query these tables and space to draw on google maps. My question is: what better way to spend these ...
1
vote
2answers
359 views

Architecture for java ee application

I´m new to GIS development. I have read about Openlayers, maps servers (i choose Geoserver), geodatabase (in my case i choose PostGis) and theory of gis in general. I´m developing a Java EE ...
0
votes
1answer
317 views

Extract specific amenity Osmosis with Java api

I need to extract restaurants from a planet.osm.pbf file. I assume the best way to do this is with Osmosis, however I need to save this data in my own database format. (Not something standard like ...
1
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4answers
178 views

Get “approximate” lat/long coordinate for UTM grid zone

I have data assigned with a UTM grid zone designators, such as 10S for example. Now I need an approximate latitude/longitude pair, preferably the center point of the given grid zone. Can you give me ...
1
vote
3answers
169 views

How to create a multi-colored raster image based on long,latt,color information?

I want to create a multi-colored raster layer to overlay on my map in OpenLayers I have the following information in my DataBase: D_Cell_ID Long Lat ColorCode 055113 ...
1
vote
2answers
263 views

Generating Values in the Attribute Table

In the attribute table within GIS, I have a certain column with ascending values, and I want to assign ID numbers (for easier readability and display) to a corresponding column. So for instance: Feet ...
3
votes
1answer
79 views

Use selected value in postgis function

How can I use the selected value from a SELECT statement in a PostGIS function. e.g. using the geom_way from SELECT geom_way FROM osm_2po_4pgr ORDER BY ST_Distance(ST_GeomFromText('POINT(21.323329 ...
1
vote
1answer
56 views

how to retrieve ATMs List from OSM

I am using this command to get the ATMs list osmosis --read-xml my_map.osm --tf accept-nodes amenity=atm --write-xml output-nodes.osm But it is giving the list of nodes and ways also...I want only ...
0
votes
0answers
440 views

Successfully extracting values from a GRIB2 file…is it possible?

Let me say first that I'm starting to work with GRIB2 files, I've read the docs, and more or less know how they are structured. My goal is to be able to parse some GRIB2 files from NOAA, more ...
1
vote
1answer
733 views

ArcGis Server Java script API error code 500 while using proxy.ashx on one particular server

I am looking for help with using proxy.ashx in Javascript API on one particular server at a client site. We have a GP service that the proxy is used to access (when request is more than 2048 ...
1
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2answers
539 views

Offline entire planet in Java Desktop app

Sorry if this question has already been asked, but I need your help. In program that we are developing we need to integrate maps. Here are the requirements that are put for integration: Maps should ...
0
votes
1answer
375 views

Filter Vector Layer Features

I'm using OpenLayers - 2.11,GeoServer 2.13, ExtJS 3.4, and Java for developing GIS based web applications. I have added some point features in one vector layer. It has id, name, address, etc. Can I ...
1
vote
1answer
921 views

why I can not run hibernate-spatial (in eclipse)

I have a problem with Hibernate Spatial. I followed the tutorial 4.x, and I created my project using maven. after correcting some minor errors in pom.xml and in persistence.xml, executing the project ...
1
vote
1answer
149 views

GWT-OpenLayers - BoundingBox selection

I'm searching for a way to get the bounds of a bounding box a user can drag on a map with gwt-openlayers but i can't figure out how to translate the javascript stuff to the javaside of the wrapper ...
0
votes
2answers
618 views

Converting WKT to WKB

How can I convert a WKT string to a WKB byte[] in Java using postgis functions? I need to save that WKT string in a postgis database (geometry column. Thanks
0
votes
0answers
228 views

Looking for java (or python) APIs to read shapefiles

Consider a work flow which receives a data field, e.g. “basemap” as shown in the image, and fills polygons with color on the basis of its numeric values. I am interested in java programming to carry ...
1
vote
2answers
218 views

How to extract common outline of multiple polygons with code?

I'm not really asking for a chunk of code to do this, but more of an algorithm I can work with myself. For example, this is the state of Maine, obviously, and I have the points of each county ...
0
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2answers
166 views

MS4W (MapServer 4 Windows) - version 3.0.3 Crashes JVM and Tomcat frequently. How to fix this?

I am using MS4W (MapServer 4 Windows with Java Mapscript) - v 3.0.3 for a GIS web application hosted over Tomcat 6.0.33 with Java jdk1.6.0_13 and PostgreSQL 9.1 with PostGIS 1.5.2 @ the database end. ...
3
votes
0answers
361 views

Hibernate Spatial - 'Invalid endian flag value encountered' Exception

I'm trying to run a simple query in Hibernate Spatial 4.0 on PostgreSQL 9.3. I have a number of objects in a table with latitude/longitude values, and I'm trying to query objects that fall within a ...
1
vote
0answers
161 views

Hibernate Spatial - Query within an X kilometer radius?

I am new to Hibernate Spatial, and am trying to perform a simple query of objects within a given radius. I've created a number of entries in my database with properties corresponding to a latitude ...
3
votes
1answer
781 views

GeoTools WFS Feature retrieval

I am trying to use geotools to retrieve the list of features served by a WFS. I am following the tutorial provided at http://docs.geotools.org/latest/userguide/library/data/wfs.html. The code that I ...
1
vote
1answer
2k views

How to calculate centroid of a polygon defined by a list of longitude/latitude points? [duplicate]

I've imported some polygons (ways) from OpenStreetMap and now want to calculate the centroids of them. For this purpose I wrote following code: final List<Point2D.Double> points = ...
1
vote
1answer
30 views

Restricting access to geoserver module

I built an extension module for Geoserver 2.5 using Maven and Wicket. It places a Label to the left of the navigation list that calls a HTML-Page in Geoserver when clicked. It looks and works as it ...
5
votes
2answers
246 views

How to order points of a polygon?

I want to create a polygon, which represents the administrative boundary of a city. It is specified by a relation, which consists of ways <member type="way" ref="25657490" role="outer"/> ...
5
votes
2answers
799 views

Overpass XML query for finding all buildings inside a polygon

I want to run following Overpass QL query in order to get way IDs of all buildings inside a polyon: way(poly:"50.7 7.1 50.7 7.2 50.75 7.15")[building]; >; out ids; Since I'm using the osm-common ...
1
vote
1answer
95 views

ArcSDE Java API: Find centroid of SeShape object?

I've inherited an ArcSDE 9.3 Java app that needs some fixing. The basic task is to find the centroid of a polygon retrieved from an SDE geodatabase, but lately it's been returning the 0th vertex ...
2
votes
1answer
180 views

Create image (TIFF/PNG) from geodetic (lat/long) data

Using Java, I need to render a bunch of geodetic data to an image, ideally TIFF or PNG. Specifically this is weather data, with each sample having a latitude, longitude, and amplitude value. I'd like ...
2
votes
1answer
246 views

netCDF-java has trouble reading this netCDF file(format) and fetching values from the latlon dimension

I'm developing an application where I need to extract variable-values from netCDF files. I'm processing several different formatted netCDF files and now one format seems to be creating some issues. ...
2
votes
0answers
535 views

Building java based desktop map application using embedded database such as spatialite

I am relatively very new to building GIS based applications and have a very limited understanding in this area. So I need some help in building a java based desktop application which would generate ...
2
votes
1answer
318 views

geotools parsing kml with multigeometry only gives me first geometry

I'm trying to parse the states.kml file (http://docs.geotools.org/latest/userguide/_downloads/states.kml) on the geotools website using the following code: Parser parser = new Parser(new ...
5
votes
2answers
109 views

How to read all IDs of all ways inside a polygon?

I have an OSM map of a larger region. Inside that region is a city with a boundary specified by a polygon. I want to retrieve IDs of all ways (ideally - of all buildings) inside that boundary (inside ...
1
vote
0answers
179 views

Getting tiles from WMTS document

I was wondering if there is a library which I can use to retrieve TileMatrix/Tile information from a WMTS Capabilities document. I have been trying to use geotools but it seems as though it does not ...
0
votes
2answers
418 views

storing images in mysql from WebGIS applications

I'm a complete amateur at writing code. I would like to make an application for storing LNG, lat, and other data, as well as images in mysql. I've set up, I made a separate application for storing ...
1
vote
0answers
29 views

How to reproduce the gdal utility programs in Java by GDAL Java bindings [duplicate]

Can anyone tell me how can I reproduce the gdal utility programs gdal_translate, gdalwarp and gdal2tiles in java by GDAL Java bindings? Thanks!
1
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0answers
144 views

How to use ArcGIS to reverse geocode and get road segment number?

I am now in a project which need to make reverse geocoding , namely ,given the latitude and longitude(assumed that the location is in a street), I want to get the road segment it is located in. What I ...