On 15/02/12 17:08, Zheng Xudong wrote: > Thanks for your answer, I think it's a good solution. > But, I still have two problems: > 1. I found GeometryFactory could be constructed with a PrecisionModel. > However, in my situation, the geometry is read from a shape file which is > attach with a default PrecisionModel (FLOATING). I want to know how could I > change the PrecisionModel of them? And I also transform the geometry, how to > ensure the PrecisionModel of the transformed geometry is the same?
I have not tried it, but I think you should use GeometryFactory.createGeometry(Geometry) to create a new Geometry with the gridded PrecisionModel from the original floating PrecisionModel. > 2. Dose this solution means the lose of the computation precision? Yes, you will lose some precision by converting to a grid. But only convert to gridded *after* computation to minimise loss of precision. Kind regards, -- Ben Caradoc-Davies <[email protected]> Software Engineer CSIRO Earth Science and Resource Engineering Australian Resources Research Centre ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ GeoTools-GT2-Users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
