# HG changeset patch
# User Sascha L. Teichmann <sascha.teichmann@intevation.de>
# Date 1552475602 -3600
# Node ID c7ce8b011bcbac8284437bff9bfeda9f349b22bd
# Parent  e8c97481438f3ebc17bd38045f658f878994db30
SR import: Negate negative Z values and issue a warning if a negative Z value is found.

diff -r e8c97481438f -r c7ce8b011bcb pkg/imports/sr.go
--- a/pkg/imports/sr.go	Wed Mar 13 11:28:46 2019 +0100
+++ b/pkg/imports/sr.go	Wed Mar 13 12:13:22 2019 +0100
@@ -426,6 +426,8 @@
 	mpz := make(octree.MultiPointZ, 0, 250000)
 	s := bufio.NewScanner(r)
 
+	var hasNegZ bool
+
 	for line := 1; s.Scan(); line++ {
 		text := s.Text()
 		var p octree.Vertex
@@ -454,6 +456,13 @@
 			feedback.Warn("format error in line %d: %v", line, err)
 			continue
 		}
+		if p.Z < 0 {
+			p.Z = -p.Z
+			if !hasNegZ {
+				hasNegZ = true
+				feedback.Warn("Negative Z value found: Using -Z")
+			}
+		}
 		mpz = append(mpz, p)
 	}