2018年9月16日 · Because, if it is not valid, how would you define the boundary and the interior of the geometry? To give you an example of a not simple geometry, try the same points but with …

I'm trying to write a simple geometry shader what just passes through vertices before attempting to modify stuff. My vertex shader is. #version 150 core in vec3 inPosition; in vec4 inColor; out …

2024年10月2日 · How to determine whether points of simple polygon are given in clockwise or counterclockwise orientation? My idea was to use PositivelyOrientedPoints on successive …

2019年2月17日 · df1[1,1] = df1[1,1] + c(2,0) ggplot(df1) + geom_sf(aes(geometry = geometry)) Explanatory note: df1[1,1] selects the first column and row, which is the star. Adding c(2,0) …

2019年7月21日 · I am trying to add a geometry shader stage to my pipeline, however when i add the geometry shader function, even the vertex shader compilation gives errors for some …

2013年2月20日 · I've written a very simple pass-through geometry shader. My input primitive is points and output primitive is also points. I also want to forward the color and normal from …

I am getting myself in a muddle with sf in R; I am trying to create a collection of features, from a large data frame of coordinates. My data is a data.frame of x and y coordinates, and the ID

2019年3月3日 · library(magrittr) #for the pipe df <- df %>% dplyr::mutate(lon = sf::st_coordinates(.)[,1], lat = sf::st_coordinates(.)[,2]) df Simple feature collection with 3 …

2019年12月11日 · I am trying to implement a simple geometry (GIS) controller with PostGIS database in Spring-Boot 2.2.1. When I try to de-serialize my task entity which contains the …

2017年12月16日 · I am trying to rasterize simple Point & Line geometry using Python GDAL and I am not able perform it. e.g. I have 3 points as follows in Lat-Lon format in the json file. [ …