From 2f292bb742aba754c27ffaee3b53578f6a350461 Mon Sep 17 00:00:00 2001
From: benjaminle <benjamin.leconte@scalinx.com>
Date: Wed, 12 Aug 2026 14:26:08 +0200
Subject: [PATCH 1/4] Fix scale line sizing for issue #132

---
 index.php | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/index.php b/index.php
index 825cfed..df530c3 100644
--- a/index.php
+++ b/index.php
@@ -29,8 +29,11 @@
         <script type="text/javascript">
 
             <?php
-                $tempval = parse_ini_file("/var/lib/online-chart/online_chart.ini");
-                $osm_server = $tempval['osmserver'];
+                $configFile = "/var/lib/online-chart/online_chart.ini";
+                $tempval = is_readable($configFile) ? parse_ini_file($configFile) : false;
+                $osm_server = is_array($tempval) && isset($tempval['osmserver'])
+                    ? $tempval['osmserver']
+                    : 'OSM';
                 echo "var OsmTileServer = ", "\"", $osm_server, "\""
             ?>
 
@@ -524,13 +527,26 @@ function initMap() {
                 });
 
                 map.addControl(new Permalink());
-                map.addControl(new ol.control.ScaleLine({
-                    className: 'ol-scale-line-metric'
-                }));
-                map.addControl(new ol.control.ScaleLine({
+                const scaleLineMaxWidth = () => Math.min(
+                    240,
+                    Math.max(100, Math.round(Math.min(window.innerWidth, window.innerHeight) * 0.2))
+                );
+                const metricScaleLine = new ol.control.ScaleLine({
+                    className: 'ol-scale-line-metric',
+                    maxWidth: scaleLineMaxWidth()
+                });
+                const nauticalScaleLine = new ol.control.ScaleLine({
                     className: 'ol-scale-line-nautical',
-                    units: "nautical",
-                }));
+                    units: 'nautical',
+                    maxWidth: scaleLineMaxWidth()
+                });
+                map.addControl(metricScaleLine);
+                map.addControl(nauticalScaleLine);
+                window.addEventListener('resize', () => {
+                    const maxWidth = scaleLineMaxWidth();
+                    metricScaleLine.setMaxWidth(maxWidth);
+                    nauticalScaleLine.setMaxWidth(maxWidth);
+                });
                 map.addControl(new ol.control.ZoomSlider());
                 map.addControl(new ol.control.MousePosition({
                     coordinateFormat: (coordinate) => {

From 8214c37dc71eed4fb73fd46854ffbe0c04ffc878 Mon Sep 17 00:00:00 2001
From: benjaminle <benjamin.leconte@scalinx.com>
Date: Wed, 12 Aug 2026 14:38:29 +0200
Subject: [PATCH 2/4] Improve compass rose magnetic deviation readability

---
 index.css | 37 +++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/index.css b/index.css
index 8f18ab9..d87f7e5 100644
--- a/index.css
+++ b/index.css
@@ -178,7 +178,19 @@ ul {
   height: 261px;
   visibility: hidden;
   border-radius: 50%;
-  /* background-color:white; */
+}
+
+#compassRose::before {
+  content: "";
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  width: 122px;
+  height: 122px;
+  transform: translate(-50%, -50%);
+  border-radius: 50%;
+  background-color: rgba(255, 255, 255, 0.94);
+  z-index: 1;
 }
 
 #geoCompassRose {
@@ -200,25 +212,26 @@ ul {
 
 #magCompassText {
   position: absolute;
-  left: 132px;
-  bottom: 118px;
-  color: #e50083;
-  font-size: 9px;
+  left: 50%;
+  top: 50%;
+  transform: translate(-50%, -50%);
+  color: #111;
+  font-size: 14px;
+  font-weight: 600;
   font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
-  width: 100px;
+  width: 180px;
   text-align: center;
+  line-height: 1.25;
+  z-index: 2;
 }
 
 #magCompassTextTop {
-  position: relative;
-  left: -50%;
-  bottom: 20px;
+  position: static;
 }
 
 #magCompassTextBottom {
-  position: relative;
-  left: -50%;
-  bottom: -20px;
+  position: static;
+  margin-top: 8px;
 }
 
 /**

From 9477b5c4edc84a2688bb760955d7198b561ef9a2 Mon Sep 17 00:00:00 2001
From: benjaminle <benjamin.leconte@scalinx.com>
Date: Wed, 12 Aug 2026 14:41:47 +0200
Subject: [PATCH 3/4] Improve compass rose deviation readability

---
 index.css | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/index.css b/index.css
index d87f7e5..7042bf9 100644
--- a/index.css
+++ b/index.css
@@ -185,11 +185,12 @@ ul {
   position: absolute;
   left: 50%;
   top: 50%;
-  width: 122px;
-  height: 122px;
+  width: 112px;
+  height: 112px;
   transform: translate(-50%, -50%);
   border-radius: 50%;
-  background-color: rgba(255, 255, 255, 0.94);
+  background-color: rgba(255, 255, 255, 0.88);
+  box-shadow: 0 0 0 1px rgba(20, 20, 20, 0.35);
   z-index: 1;
 }
 
@@ -216,12 +217,12 @@ ul {
   top: 50%;
   transform: translate(-50%, -50%);
   color: #111;
-  font-size: 14px;
+  font-size: 9px;
   font-weight: 600;
   font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
-  width: 180px;
+  width: 104px;
   text-align: center;
-  line-height: 1.25;
+  line-height: 1.15;
   z-index: 2;
 }
 
@@ -231,7 +232,8 @@ ul {
 
 #magCompassTextBottom {
   position: static;
-  margin-top: 8px;
+  margin-top: 5px;
+  font-size: 8px;
 }
 
 /**

From 6967a3d83c62eb013a1aab0922d4c6572acf1439 Mon Sep 17 00:00:00 2001
From: benjaminle <benjamin.leconte@scalinx.com>
Date: Wed, 12 Aug 2026 14:52:18 +0200
Subject: [PATCH 4/4] Update magnetic model coefficients to WMM2020

---
 javascript/geomagjs/WMM.COF | 178 ++++++++++++++++++------------------
 1 file changed, 89 insertions(+), 89 deletions(-)

diff --git a/javascript/geomagjs/WMM.COF b/javascript/geomagjs/WMM.COF
index 787f761..7940efb 100644
--- a/javascript/geomagjs/WMM.COF
+++ b/javascript/geomagjs/WMM.COF
@@ -1,93 +1,93 @@
-    2015.0            WMM-2015v2      09/18/2018
-  1  0  -29438.2       0.0        7.0        0.0
-  1  1   -1493.5    4796.3        9.0      -30.2
-  2  0   -2444.5       0.0      -11.0        0.0
-  2  1    3014.7   -2842.4       -6.2      -29.6
-  2  2    1679.0    -638.8        0.3      -17.3
-  3  0    1351.8       0.0        2.4        0.0
-  3  1   -2351.6    -113.7       -5.7        6.5
-  3  2    1223.6     246.5        2.0       -0.8
-  3  3     582.3    -537.4      -11.0       -2.0
-  4  0     907.5       0.0       -0.8        0.0
-  4  1     814.8     283.3       -0.9       -0.4
-  4  2     117.8    -188.6       -6.5        5.8
-  4  3    -335.6     180.7        5.2        3.8
-  4  4      69.7    -330.0       -4.0       -3.5
-  5  0    -232.9       0.0       -0.3        0.0
-  5  1     360.1      46.9        0.6        0.2
-  5  2     191.7     196.5       -0.8        2.3
-  5  3    -141.3    -119.9        0.1       -0.0
-  5  4    -157.2      16.0        1.2        3.3
-  5  5       7.7     100.6        1.4       -0.6
-  6  0      69.4       0.0       -0.8        0.0
-  6  1      67.7     -20.1       -0.5        0.3
-  6  2      72.3      32.8       -0.1       -1.5
-  6  3    -129.1      59.1        1.6       -1.2
-  6  4     -28.4     -67.1       -1.6        0.4
-  6  5      13.6       8.1        0.0        0.2
-  6  6     -70.3      61.9        1.2        1.3
-  7  0      81.7       0.0       -0.3        0.0
-  7  1     -75.9     -54.3       -0.2        0.6
-  7  2      -7.1     -19.5       -0.3        0.5
-  7  3      52.2       6.0        0.9       -0.8
-  7  4      15.0      24.5        0.1       -0.2
-  7  5       9.1       3.5       -0.6       -1.1
-  7  6      -3.0     -27.7       -0.9        0.1
-  7  7       5.9      -2.9        0.7        0.2
-  8  0      24.2       0.0       -0.1        0.0
-  8  1       8.9      10.1        0.2       -0.4
-  8  2     -16.9     -18.3       -0.2        0.6
-  8  3      -3.1      13.3        0.5       -0.1
-  8  4     -20.7     -14.5       -0.1        0.6
-  8  5      13.3      16.2        0.4       -0.2
-  8  6      11.6       6.0        0.4       -0.5
-  8  7     -16.3      -9.2       -0.1        0.5
-  8  8      -2.1       2.4        0.4        0.1
-  9  0       5.5       0.0       -0.1        0.0
-  9  1       8.8     -21.8       -0.1       -0.3
-  9  2       3.0      10.7       -0.0        0.1
-  9  3      -3.2      11.8        0.4       -0.4
-  9  4       0.6      -6.8       -0.4        0.3
-  9  5     -13.2      -6.9        0.0        0.1
-  9  6      -0.1       7.9        0.3       -0.0
-  9  7       8.7       1.0        0.0       -0.1
-  9  8      -9.1      -3.9       -0.0        0.5
-  9  9     -10.4       8.5       -0.3        0.2
- 10  0      -2.0       0.0        0.0        0.0
- 10  1      -6.1       3.3       -0.0        0.0
- 10  2       0.2      -0.4       -0.1        0.1
- 10  3       0.6       4.6        0.2       -0.2
- 10  4      -0.5       4.4       -0.1        0.1
- 10  5       1.8      -7.9       -0.2       -0.1
- 10  6      -0.7      -0.6       -0.0        0.1
- 10  7       2.2      -4.2       -0.1       -0.0
- 10  8       2.4      -2.9       -0.2       -0.1
- 10  9      -1.8      -1.1       -0.1        0.2
- 10 10      -3.6      -8.8       -0.0       -0.0
+    2020.0            WMM-2020        12/10/2019
+  1  0  -29404.5       0.0        6.7        0.0
+  1  1   -1450.7    4652.9        7.7      -25.1
+  2  0   -2500.0       0.0      -11.5        0.0
+  2  1    2982.0   -2991.6       -7.1      -30.2
+  2  2    1676.8    -734.8       -2.2      -23.9
+  3  0    1363.9       0.0        2.8        0.0
+  3  1   -2381.0     -82.2       -6.2        5.7
+  3  2    1236.2     241.8        3.4       -1.0
+  3  3     525.7    -542.9      -12.2        1.1
+  4  0     903.1       0.0       -1.1        0.0
+  4  1     809.4     282.0       -1.6        0.2
+  4  2      86.2    -158.4       -6.0        6.9
+  4  3    -309.4     199.8        5.4        3.7
+  4  4      47.9    -350.1       -5.5       -5.6
+  5  0    -234.4       0.0       -0.3        0.0
+  5  1     363.1      47.7        0.6        0.1
+  5  2     187.8     208.4       -0.7        2.5
+  5  3    -140.7    -121.3        0.1       -0.9
+  5  4    -151.2      32.2        1.2        3.0
+  5  5      13.7      99.1        1.0        0.5
+  6  0      65.9       0.0       -0.6        0.0
+  6  1      65.6     -19.1       -0.4        0.1
+  6  2      73.0      25.0        0.5       -1.8
+  6  3    -121.5      52.7        1.4       -1.4
+  6  4     -36.2     -64.4       -1.4        0.9
+  6  5      13.5       9.0       -0.0        0.1
+  6  6     -64.7      68.1        0.8        1.0
+  7  0      80.6       0.0       -0.1        0.0
+  7  1     -76.8     -51.4       -0.3        0.5
+  7  2      -8.3     -16.8       -0.1        0.6
+  7  3      56.5       2.3        0.7       -0.7
+  7  4      15.8      23.5        0.2       -0.2
+  7  5       6.4      -2.2       -0.5       -1.2
+  7  6      -7.2     -27.2       -0.8        0.2
+  7  7       9.8      -1.9        1.0        0.3
+  8  0      23.6       0.0       -0.1        0.0
+  8  1       9.8       8.4        0.1       -0.3
+  8  2     -17.5     -15.3       -0.1        0.7
+  8  3      -0.4      12.8        0.5       -0.2
+  8  4     -21.1     -11.8       -0.1        0.5
+  8  5      15.3      14.9        0.4       -0.3
+  8  6      13.7       3.6        0.5       -0.5
+  8  7     -16.5      -6.9        0.0        0.4
+  8  8      -0.3       2.8        0.4        0.1
+  9  0       5.0       0.0       -0.1        0.0
+  9  1       8.2     -23.3       -0.2       -0.3
+  9  2       2.9      11.1       -0.0        0.2
+  9  3      -1.4       9.8        0.4       -0.4
+  9  4      -1.1      -5.1       -0.3        0.4
+  9  5     -13.3      -6.2       -0.0        0.1
+  9  6       1.1       7.8        0.3       -0.0
+  9  7       8.9       0.4       -0.0       -0.2
+  9  8      -9.3      -1.5       -0.0        0.5
+  9  9     -11.9       9.7       -0.4        0.2
+ 10  0      -1.9       0.0        0.0        0.0
+ 10  1      -6.2       3.4       -0.0       -0.0
+ 10  2      -0.1      -0.2       -0.0        0.1
+ 10  3       1.7       3.5        0.2       -0.3
+ 10  4      -0.9       4.8       -0.1        0.1
+ 10  5       0.6      -8.6       -0.2       -0.2
+ 10  6      -0.9      -0.1       -0.0        0.1
+ 10  7       1.9      -4.2       -0.1       -0.0
+ 10  8       1.4      -3.4       -0.2       -0.1
+ 10  9      -2.4      -0.1       -0.1        0.2
+ 10 10      -3.9      -8.8       -0.0       -0.0
  11  0       3.0       0.0       -0.0        0.0
- 11  1      -1.4      -0.0        0.0        0.0
- 11  2      -2.3       2.1       -0.0        0.1
- 11  3       2.1      -0.6        0.0        0.0
- 11  4      -0.8      -1.1       -0.0        0.1
- 11  5       0.6       0.7       -0.1       -0.0
- 11  6      -0.7      -0.2        0.0       -0.0
- 11  7       0.1      -2.1       -0.0        0.1
- 11  8       1.7      -1.5       -0.0       -0.0
- 11  9      -0.2      -2.6       -0.1       -0.1
- 11 10       0.4      -2.0       -0.0       -0.0
- 11 11       3.5      -2.3       -0.1       -0.1
+ 11  1      -1.4      -0.0       -0.1       -0.0
+ 11  2      -2.5       2.6       -0.0        0.1
+ 11  3       2.4      -0.5        0.0        0.0
+ 11  4      -0.9      -0.4       -0.0        0.2
+ 11  5       0.3       0.6       -0.1       -0.0
+ 11  6      -0.7      -0.2        0.0        0.0
+ 11  7      -0.1      -1.7       -0.0        0.1
+ 11  8       1.4      -1.6       -0.1       -0.0
+ 11  9      -0.6      -3.0       -0.1       -0.1
+ 11 10       0.2      -2.0       -0.1        0.0
+ 11 11       3.1      -2.6       -0.1       -0.0
  12  0      -2.0       0.0        0.0        0.0
- 12  1      -0.1      -1.0        0.0       -0.0
- 12  2       0.5       0.3       -0.0        0.0
- 12  3       1.2       1.8        0.0       -0.1
- 12  4      -0.9      -2.2       -0.1        0.1
- 12  5       0.9       0.3       -0.0       -0.0
- 12  6       0.1       0.7        0.0        0.0
- 12  7       0.6      -0.1       -0.0       -0.0
- 12  8      -0.4       0.3        0.0        0.0
- 12  9      -0.5       0.2       -0.0        0.0
- 12 10       0.2      -0.9       -0.0       -0.0
- 12 11      -0.9      -0.2       -0.0        0.0
- 12 12      -0.0       0.8       -0.1       -0.1
+ 12  1      -0.1      -1.2       -0.0       -0.0
+ 12  2       0.5       0.5       -0.0        0.0
+ 12  3       1.3       1.3        0.0       -0.1
+ 12  4      -1.2      -1.8       -0.0        0.1
+ 12  5       0.7       0.1       -0.0       -0.0
+ 12  6       0.3       0.7        0.0        0.0
+ 12  7       0.5      -0.1       -0.0       -0.0
+ 12  8      -0.2       0.6        0.0        0.1
+ 12  9      -0.5       0.2       -0.0       -0.0
+ 12 10       0.1      -0.9       -0.0       -0.0
+ 12 11      -1.1      -0.0       -0.0        0.0
+ 12 12      -0.3       0.5       -0.1       -0.1
 999999999999999999999999999999999999999999999999
 999999999999999999999999999999999999999999999999