对原项目github.com/dhconnelly/rtreego进行了精度更改,准备测试

.gitignore

@@ -0,0 +1 @@
+**/.idea/

README.md

@@ -1,2 +1,3 @@
 # rtreego
-对https://github.com/dhconnelly/rtreego 精度进行了更改
+对https://github.com/dhconnelly/rtreego 精度进行了更改,改为float32
+

filter.go

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+package rtreego
+
+// Filter is an interface for filtering leaves during search. The parameters
+// should be treated as read-only. If refuse is true, the current entry will
+// not be added to the result set. If abort is true, the search is aborted and
+// the current result set will be returned.
+type Filter func(results []Spatial, object Spatial) (refuse, abort bool)
+
+// ApplyFilters applies the given filters and returns whether the entry is
+// refused and/or the search should be aborted. If a filter refuses an entry,
+// the following filters are not applied for the entry. If a filter aborts, the
+// search terminates without further applying any filter.
+func applyFilters(results []Spatial, object Spatial, filters []Filter) (bool, bool) {
+	for _, filter := range filters {
+		refuse, abort := filter(results, object)
+		if refuse || abort {
+			return refuse, abort
+		}
+	}
+	return false, false
+}
+
+// LimitFilter checks if the results have reached the limit size and aborts if so.
+func LimitFilter(limit int) Filter {
+	return func(results []Spatial, object Spatial) (refuse, abort bool) {
+		if len(results) >= limit {
+			return true, true
+		}
+
+		return false, false
+	}
+}