Hello all together, I have a problem and I hope you can help me with this.
My intersection operation for geometries doesn’t return the correct result when the geometries have many decimal places. There is a method for checking if a point lays on a straight line. In this method the slope and the intersection with Y-Axis of the straight line is calculated. With this and the x-coordinate of the point the method calculates the y-coordinate which should the point have if the point would lay on the straight line. Then this and the real y-coordinate will be compared. If they are equal the point lays on the line. But this doesn’t work correct. Sometimes the method returns that the point does not lay on the straight line, because the calculated values differ with a value of 0.000000000004. But in reality the point lays on the straight line. Does somebody know if the calculation is wrong? Or how did you avoid such kinds of problems? Does this problem maybe deals with the precision or the tolerance? With kind regards and thanks for your help. Anke Trittenbach -- Neu: GMX FreeDSL Komplettanschluss mit DSL 6.000 Flatrate + Telefonanschluss für nur 17,95 Euro/mtl.!* http://dslspecial.gmx.de/freedsl-surfflat/?ac=OM.AD.PD003K11308T4569a _______________________________________________ jts-devel mailing list [email protected] http://lists.refractions.net/mailman/listinfo/jts-devel
