[R-sig-Geo] Incorrect result of gDisjoint in rgeos?

Hello, I have encountered strange results, when using Geometry Relationship tools in rgeos package. I have set of lines and points and want to check, which point lies on which line. The results, which I obtain using rgeos tools, are incorrect, however. For example, I have point 59 and line 63.

[R-sig-Geo] Kriging of values distributed on line

Hello, perhaps I am asking for something obvious, but I would like to perform interpolation of values, which are distributed on the line. my dataset consists of two vectors: stationing (distance from origin) and values. I would like to krige the values to obtain smooothed curve with variance

[R-sig-Geo] rgeos: gOverlaps not working properly?

Hello, I have following problem with gOverlaps function: I have two lines, A and B. line A has 57 vertexes, all identical with vertexes of line B yet, gOverlaps(A,B) gives FALSE the code follows... CooA # coordinates of line A [,1] [,2] [1,] -506157.4 -1122381 [2,] -506046.4

Re: [R-sig-Geo] rgeos: gOverlaps not working properly?

Absolutely, sorry for that dput(CooA) structure(c(-506157.3827, -506046.35779, -506021.42681, -505984.87158, -505953.70149, -505910.16251, -505883.4289, -505840.08242, -505800.22761, -505771.72411, -505735.3649, -505701.88969, -505651.2245,

Re: [R-sig-Geo] rgeos: gOverlaps not working properly?

Thank you very much, problem solved. Zbynek -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/rgeos-gOverlaps-not-working-properly-tp7581278p7581282.html Sent from the R-sig-geo mailing list archive at Nabble.com. ___ R-sig-Geo

[R-sig-Geo] problem extracting Z value from line shapefile

Hello, I have following problem: I wish to extract z coordinates from a polyline shapefile. Using readOGR() i get following: data - readOGR(path,'tesikov') OGR data source with driver: ESRI Shapefile Source: C:/Users/Janoska/Documents/GPS, layer: tesikov with 1 features and 1 fields Feature

[R-sig-Geo] localG {spdep} - critical values for Gi* statistics

Hello, I am wondering, if it is posiible to obtain critical values for Gi statistics calculated by localG {spdep} function. In manual there is (quoting): The critical values of the statistic under assumptions given in the references for the 95th percentile are for n=1: 1.645, n=50: 3.083, n=100: