mesh builder
library(fmesher) library(sf) library(ggplot2) create_adaptive_mesh <- function(sf_object, inner_edge_ratio = 30, # 增大内部边长比例(更密集) outer_edge_ratio = 5, # 减小外部边长比例(更稀疏) inner_offset_ratio = 8, # 减小内部偏移比例(内部区域更大) outer_offset_ratio = 20, # 增大外部偏移比例(外部区域相对更小) cutoff_ratio = 80, # 增大cutoff比例(避免过小三角形) ...