To all JTS users: We have changed the official name of the JTS API to the "JTS Topology Suite". This avoids potential trademark infringement issues with Sun...
Hi, I have a simple question here. According to JTS spec, JTS conforms to the Simple Features Specification for SQL. From the spec of JTS, spatial data I/O in...
[I'm cross-posting this to the JTS list, since it might be of general interest] Andrea, You're correct in noting that for repeated evaluation of an overlay...
Yep, that's the general idea. I guess the tricky part is specifying the dissolve (or union) operation in a flexible way. As Andrea pointed out, what he really...
In this case with these two polygons: POLYGON ((545 317, 617 379, 581 321, 545 317)). POLYGON ((484 290, 558 359, 543 309, 484 290)). when i try an union...
NOTE: PLEASE DIRECT ALL RESPONSE TO EMAIL ACCOUNT CONTAINED IN THIS LETTER FOR CONFIDENTIAL PURPOSE. STRICTLY CONFIDENTIAL FROM: Mr. Suleman Sese Seko TEL:...
Hi. I'll try to develop one module to union of buffered points. In the case buffered size was too small and buffering of points using this size resulted to...
Try using RobustCGAlgorithms#computeOrientation. Use two points of the splitting line, and a point from one of the polygons. It might be best to use the...
(Bonus - I can answer two questions at once here... ) cdlee, The polygons in your message are classic cases that will cause robustness problems: Large...
We're happy to announce that JTS 1.3 is now available at the JTS Web site (http://www.vividsolutions.com/jts/jtshome.htm) JTS 1.3 contains the following...
Hi, when i tried to find the intersection of two geometries, i got the following message com.vividsolutions.jts.geom.TopologyException: no outgoing dirEdge ...
Hi all, does there has any examples about how to use topological computation? I cannot understand it with JTS Technical Specs so what should i read? Thanks!...
Hello. If one polygon is divided by one linestring using JTS Geometry's "intersection" method and its result creates two polygon, how to identify which...
As a followup to the previous post: The SFS specificies that a Point is a 0-dimensional Geometry, with an interior, no boundary, and an exterior. Can anyone...
Hello, We have a pretty interesting discussion, of how a point is handeled in the DE-9-Intersection Matrix. From a geometric point of view, a point is...
Hi! There have earlier been a long discussion on mutable coordinates in JTS and I just want to add another perspective on this issue. We are currently using...
Apologies if this has been addressed before, but I searched a bit in the archives and didn't find anything. I've been working with the JTS WKTWriter and the...
The JTS Web site has been updated with some Case Studies illustrating the use of JTS. Currently available is: Case Study: Validation of Very Large Polygons ...
Hello, probably this question has been asked several time, so excuse me. What are the new features of JTS 1.3, that is going to be released (end of March)? ...
Folks, thanks for all the suggestions about centroid algorithms. The judges will be evaluating them in due course, and the lucky winner will be included in...
It's more or less an intentional omission... They weren't high on our list of issues to tackle with the initial release of JTS, and we just haven't got around...
Hi, I am new to JTS... and I can't figure out the following behaviour (using FLOATING and robust(default) cgaalgorithms ) : I compute the union of 3 polygons...
Is anyone out there in JTS-land making use of the JTS Geometry.buffer() method? If so, are you encountering many robustness failures when using it? (That is...
I have attached a sample program to demonstrate issues with thread safety with JTS geometries when performing overlay or relate. The problem lies in the use of...
Hi all, in oracle spatial, it has a function SDO_GEOM.SDO_ARC_DENSIFY which returns a geometry in which each circular arc in the input geometry is changed into...
Both. Primarily the classes in operation and it's subpackages are intended to be used internally by the methods of the various Geometry classes. However, the...
We have developed a web application which performs relate and overlay operations on geometry to calculate the area of intersection between a base parcel and...
