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Questions tagged [openjump]

OpenJUMP is an open source Geographic Information System (GIS) written in the Java programming language.

1
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1answer
222 views

Select a percentage of a area that lies within a buffer

I buffer within a distance of 80 ft off a road .Which produces the layer of the result of the buffer. I then produces a layer for the land around it . I know need to select everything that fall within ...
0
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1answer
78 views

OpenJUMP Coordinate Transformation Plugin - where to find it in latest version

Recently I noticed a note by OpenJUMP dev team: "Integration of Coordinate Transformation PlugIn in OpenJUMP core", which is great. I could confirm that Coordinate Transformation menu, which was ...
1
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1answer
104 views

How do you calculate the area of a Home Range in OpenJump - k-LoCoH

I have run k-LoCoH on OpenJump and am attempting to calculate the area of the home range. It is on a shapefile layer of the reserve the animal's GPS points are in (CSV). I have followed the manual to ...
2
votes
2answers
186 views

Valid SQL queries in OpenJump?

I found OpenJump a real nice tool with its ability to render results of ad hoc SQL queries like PostGIS ones (among other things). However, I also found that not everything that runs in (say) pgAdmin ...
6
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2answers
880 views

Converting polygon to lines without duplicate edges?

This seems like it should be easy, but I'm not figuring it out: How do I convert a polygon layer into a line layer representing the polygon edges, where each edge belongs only to a single feature (or ...
2
votes
1answer
127 views

Showing PostGIS geography with OpenJUMP

I am trying to add data into open jump from a table in pgadmin. However there no geometry column in the table . I do have geography column. Can I transfer the geography to geometry ( i believe it ...
1
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2answers
113 views

OpenJump LoCoH Analysis Output?

I really need some help! I am doing a k-LoCoH analysis in OpenJump. The analysis is working, but I'm having trouble understanding the output. There is a "density" column in the output, and I'm not ...
1
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1answer
44 views

Does openJump or Jump support the embedding of videos or images?

I've been tasking with writing a plugin for openJump that does precisely that. The idea is that you have some points/markers and when you click on them a video/image is presented (whether in a dialog, ...
5
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2answers
613 views

Extracting Overlapping Parts of Single Polygon Layer using QGIS?

I have a single polygon layer with over 200 buffers with a lot of overlapping areas. I want to use QGIS to create a new layer representing the overlap. I've seen several questions that are similar, ...
1
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1answer
108 views

Saving openJUMP data to be displayed in leaflet

Using OpenJUMP, I've managed to create a road map layer split at every intersection of the lines (using the noder tool). I need to take this data and display this using leaflet by using end ...
3
votes
1answer
869 views

How to add attributes to a Shapefile published in Geoserver?

I use Geoserver 2.4.4 with Shapefiles. Now, I want to add attributes to features from a layer that already has some attributes. (Shown in Geoserver->Layers->Feature Type Details). I add the ...
0
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0answers
139 views

change XSD definition value of minoccurs maxoccurs

How can I change the XSD definition values of the 'Feature Type Details'' attributes minOccursand maxOccursof a Layer, either in Geoserver or in OpenJump? (as in <xsd:element maxOccurs="1" ...
4
votes
6answers
333 views

String update - only first character gets stored

Client: OpenLayers / Server: Geoserver When I update a WFS Element, JAVASCRIPT: element.feature.attributes.ENAME = "Mystring"; saveStrategy.save(); HTTP-POST: <wfs:Property> <wfs:...
7
votes
5answers
4k views

Is there a union function for multiple layers comparable to ArcGIS in open source GIS like QGIS?

I need a union function for a lot of polygon layers (protected areas of all kind, nature, water etc.) comparable to the union function in ArcGIS. I have only the desktop version from ArcGIS and so it ...
0
votes
1answer
115 views

Trouble installing PostGIS PlugIn for OpenJump

I’m trying to install PostGISPlugin version 1.52 in OpenJUMP 1.7.1 release 4004. I moved the JAR file into my installation’s lib/ext directory, but I’m not sure how to access the plugin-specific UI ...
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0answers
47 views

Keep synchronization when simplify features from different data source

We have two shapefile data sources: 1 water-riverbank.shp With geometry type of Polygon which stands for the area of water 2water-riverline.shp. With geometry type of LineString which stands for ...
2
votes
1answer
384 views

PostGIS - Error when converting shapefile into dataset using openJUMP

I am new to this field. I want to save my shapefile as a dataset in PostGIS using openJUMP, but I'm getting an error. Can anybody suggest a solution for this?
7
votes
4answers
8k views

Split Lines at Intersection of Other Lines

I have two line layers (roads and contours in this example) and I would like to split the roads layer every time it crosses/intersects a feature on the contour layer. I can't seem to find a tool that ...
1
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0answers
121 views

How to do warping of shapefile in GeoTools

Can any body give me simple warping example in GeoTools? I have non georeferenced shapefile with polygons and I need to georeference this shapefile by using warp technique. Please help me.
3
votes
1answer
960 views

How to filter layer of osm data?

I have a table osm_roads that has a column named geometry geometry geometry(LineString,900913). If I want to filter a city to draw districts, I cannot do it by geographic coordinates? What if in ...
7
votes
2answers
715 views

QGIS saving analysis output as Postgis table

i am using QGIS and Postgis together. I can load data in Postgis and than i import it to QGIS. But i am trying to save an analysis output (example: buffer analysis, voronoi polygon or SEXTANTE ...
1
vote
1answer
866 views

Display Google Maps in OpenJUMP

I am creating a GIS application using OpenJUMP. I would like to show Google Maps as the base layer on top of which other spatial data is being rendered using PostGIS database. Kindly let me know how ...
1
vote
3answers
891 views

Comparing Java-based GIS Programs? [closed]

I want to develop a GIS application in Java. I found some of useful software like UDIg, Openjump, KOsmo and gvsig, but I am unable to decide from which should I start as I want to create my ...
2
votes
1answer
558 views

A software architecture for viewing/editing roads and routes

I have a routing software module which uses PostGIS/pgRouting to calculate routes. The road network is generated from an .osm file with osm2pgrouting tool. I need to enhance the functionality of the ...
1
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1answer
1k views

How to Run Ad Hoc Database Queries in Open Jump?

Which plugin allows you to run ad hoc queries from postgis in Openjump? How do you install it in Ubuntu?
10
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1answer
2k views

Seeking OpenJump tool for point/node conflation/matching?

Are there any OpenJump tools for conflating (matching) two layers of point (node) data? I'm particularly interested in using such a tool to sync data with OpenStreetMap, where I've created a wiki ...
15
votes
4answers
705 views

What's up with OpenJump?

OpenJump is a nice GIS, very functional, with many updates and has a beautiful rendering. But it's not very popular, and you don't see it around in discussions, in osgeo comunity, etc. And gis....