From 98f9f5ae729cf4a61bace7c477f5916fd4c00964 Mon Sep 17 00:00:00 2001
From: Artemy <artegoser@gmail.com>
Date: Wed, 5 Jul 2023 16:09:05 +0300
Subject: [PATCH] fix: area calculation only for countries

---
 package-lock.json   | 4 ++--
 package.json        | 2 +-
 tools/GeoBuilder.js | 8 +++++---
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index be4b065..67b8d28 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cimengine-build-tools",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cimengine-build-tools",
-      "version": "1.3.0",
+      "version": "1.3.1",
       "license": "MIT",
       "dependencies": {
         "@turf/turf": "^6.5.0",
diff --git a/package.json b/package.json
index c14037e..2afd565 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cimengine-build-tools",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Geojson data processing tools for CIMEngine",
   "main": "index.js",
   "scripts": {
diff --git a/tools/GeoBuilder.js b/tools/GeoBuilder.js
index 5b3da0b..3682e6c 100644
--- a/tools/GeoBuilder.js
+++ b/tools/GeoBuilder.js
@@ -385,9 +385,11 @@ console.time("Set new ids and area");
 let id = 0;
 geo.features = geo.features.map((val) => {
   val.id = id++;
-  val.properties.area = (turf.area(val) / 1000000)
-    .toFixed(2)
-    .replace(/(\d)(?=(\d\d\d)+([^\d]|$))/g, "$1 ");
+  if (val.geometry.type === "MultiPolygon") {
+    val.properties.area = (turf.area(val) / 1000000)
+      .toFixed(2)
+      .replace(/(\d)(?=(\d\d\d)+([^\d]|$))/g, "$1 ");
+  }
   return val;
 });