auto-sync: 2026-05-13 12:30:01

tasks/enduro-trails/scripts/download_kurviger.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+set -e
+
+cd /home/slin/enduro-trails/data/srtm
+BASE="https://srtm.kurviger.de/SRTM3/Eurasia"
+
+echo 'Downloading from kurviger mirror...'
+for lat in 54 55 56; do
+  for lon in 041 042 043 044 045 046; do
+    f="N${lat}E${lon}"
+    if [ -f "${f}.hgt" ]; then
+      echo "  EXISTS: ${f}"
+      continue
+    fi
+    wget -q --timeout=60 "${BASE}/${f}.hgt.zip" -O "/tmp/${f}.hgt.zip" 2>/dev/null
+    if [ -s "/tmp/${f}.hgt.zip" ]; then
+      unzip -o -q "/tmp/${f}.hgt.zip" -d . && echo "  OK: ${f} ($(du -h ${f}.hgt | cut -f1))" || echo "  UNZIP FAIL: ${f}"
+      rm -f "/tmp/${f}.hgt.zip"
+    else
+      echo "  NOT FOUND: ${f}"
+      rm -f "/tmp/${f}.hgt.zip"
+    fi
+  done
+done
+
+echo ''
+echo "Total HGT: $(ls *.hgt | wc -l)"
+echo "New E041-E046 (N54-56):"
+ls N5[456]E04[1-6].hgt 2>/dev/null | sort

tasks/enduro-trails/scripts/download_srtm.py

@@ -0,0 +1,46 @@
+import urllib.request
+import zipfile
+import os
+import sys
+
+SRTM_DIR = '/home/slin/enduro-trails/data/srtm'
+BASE_URL = 'https://srtm.kurviger.de/SRTM3/Eurasia'
+
+tiles = []
+for lat in [54, 55, 56]:
+    for lon in range(41, 47):
+        tiles.append(f'N{lat}E{lon:03d}')
+
+os.chdir(SRTM_DIR)
+count = 0
+
+for tile in tiles:
+    hgt = f'{tile}.hgt'
+    if os.path.exists(hgt):
+        print(f'  EXISTS: {hgt}')
+        continue
+    
+    url = f'{BASE_URL}/{tile}.hgt.zip'
+    tmp = f'/tmp/{tile}.hgt.zip'
+    
+    try:
+        print(f'  Downloading {tile}...', end=' ', flush=True)
+        urllib.request.urlretrieve(url, tmp)
+        
+        if os.path.getsize(tmp) > 0:
+            with zipfile.ZipFile(tmp, 'r') as z:
+                z.extractall('.')
+            os.remove(tmp)
+            size = os.path.getsize(hgt) if os.path.exists(hgt) else 0
+            print(f'OK ({size // 1024}KB)')
+            count += 1
+        else:
+            print('EMPTY')
+            os.remove(tmp)
+    except Exception as e:
+        print(f'FAIL: {e}')
+        if os.path.exists(tmp):
+            os.remove(tmp)
+
+print(f'\nDownloaded: {count} new files')
+print(f'Total HGT: {len([f for f in os.listdir(".") if f.endswith(".hgt")])}')

tasks/enduro-trails/scripts/download_srtm_v2.py

@@ -0,0 +1,49 @@
+import urllib.request
+import zipfile
+import os
+
+SRTM_DIR = '/home/slin/enduro-trails/data/srtm'
+BASE_URL = 'https://srtm.kurviger.de/SRTM3/Eurasia'
+
+tiles = []
+for lat in [54, 55, 56]:
+    for lon in range(41, 47):
+        tiles.append(f'N{lat}E{lon:03d}')
+
+os.chdir(SRTM_DIR)
+count = 0
+
+opener = urllib.request.build_opener()
+opener.addheaders = [('User-Agent', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36')]
+urllib.request.install_opener(opener)
+
+for tile in tiles:
+    hgt = f'{tile}.hgt'
+    if os.path.exists(hgt):
+        print(f'  EXISTS: {hgt}')
+        continue
+    
+    url = f'{BASE_URL}/{tile}.hgt.zip'
+    tmp = f'/tmp/{tile}.hgt.zip'
+    
+    try:
+        print(f'  Downloading {tile}...', end=' ', flush=True)
+        urllib.request.urlretrieve(url, tmp)
+        
+        if os.path.getsize(tmp) > 0:
+            with zipfile.ZipFile(tmp, 'r') as z:
+                z.extractall('.')
+            os.remove(tmp)
+            size = os.path.getsize(hgt) if os.path.exists(hgt) else 0
+            print(f'OK ({size // 1024}KB)')
+            count += 1
+        else:
+            print('EMPTY')
+            os.remove(tmp)
+    except Exception as e:
+        print(f'FAIL: {e}')
+        if os.path.exists(tmp):
+            os.remove(tmp)
+
+print(f'\nDownloaded: {count} new files')
+print(f'Total HGT: {len([f for f in os.listdir(".") if f.endswith(".hgt")])}')

tasks/enduro-trails/scripts/regen_all.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+set -e
+
+echo '=== FULL REGENERATION (81 HGT files) ==='
+echo "Start: $(date)"
+
+SRTM_DIR='/home/slin/enduro-trails/data/srtm'
+TERRAIN_DIR='/home/slin/enduro-trails/data/terrain'
+TMP='/tmp/regen_full'
+
+rm -rf $TMP
+mkdir -p $TMP
+
+echo ''
+echo '=== Step 1: Build VRT ==='
+find $SRTM_DIR -name '*.hgt' > $TMP/file_list.txt
+gdalbuildvrt -vrtnodata -32768 -overwrite -input_file_list $TMP/file_list.txt $TMP/srtm_all.vrt 2>&1
+echo "VRT: $(wc -l < $TMP/file_list.txt) files"
+gdalinfo -stats $TMP/srtm_all.vrt 2>&1 | grep STATISTICS
+
+echo ''
+echo '=== Step 2: Generate HYPSO ==='
+cat > $TMP/color_ramp.txt << 'EOF'
+nv    0    0    0    0
+-100  0    0    0    0
+0     0    0    0    0
+1     57   151  105  255
+50    80   165  110  255
+100   120  180  100  255
+150   160  190  95   255
+200   139  176  96   255
+300   170  185  105  255
+500   189  188  115  255
+700   210  200  130  255
+1000  220  206  148  255
+1500  235  220  175  255
+2000  210  185  140  255
+2500  185  152  110  255
+3000  160  120  80   255
+4000  120  80   40   255
+5000  200  200  200  255
+EOF
+
+gdaldem color-relief $TMP/srtm_all.vrt $TMP/color_ramp.txt $TMP/hypso.tif -alpha -of GTiff -co COMPRESS=LZW -co BIGTIFF=YES 2>&1
+echo "Hypso TIF: $(du -sh $TMP/hypso.tif | cut -f1)"
+
+rm -rf ${TERRAIN_DIR}/hypso
+mkdir -p ${TERRAIN_DIR}/hypso
+gdal2tiles.py --zoom=5-12 --processes=4 --tilesize=256 --webviewer=none $TMP/hypso.tif ${TERRAIN_DIR}/hypso/ 2>&1
+echo "Hypso tiles: $(find ${TERRAIN_DIR}/hypso -name '*.png' | wc -l)"
+
+echo ''
+echo '=== Step 3: Generate TRI ==='
+gdaldem TRI $TMP/srtm_all.vrt $TMP/tri_raw.tif -of GTiff -co COMPRESS=LZW -co BIGTIFF=YES -compute_edges 2>&1
+
+cat > $TMP/tri_color.txt << 'EOF'
+nv    0    0    0    0
+0     0    0    0    0
+2     0    0    0    0
+3     255  255  100  60
+4     255  230  50   100
+5     255  200  0    140
+7     255  150  0    180
+10    255  100  0    200
+15    230  50   0    220
+20    200  0    0    235
+30    180  0   50    245
+50    150  0   100   255
+EOF
+
+gdaldem color-relief $TMP/tri_raw.tif $TMP/tri_color.txt $TMP/tri_colored.tif -alpha -of GTiff -co COMPRESS=LZW -co BIGTIFF=YES 2>&1
+echo "TRI TIF: $(du -sh $TMP/tri_colored.tif | cut -f1)"
+
+rm -rf ${TERRAIN_DIR}/tri
+mkdir -p ${TERRAIN_DIR}/tri
+gdal2tiles.py --zoom=5-12 --processes=4 --tilesize=256 --webviewer=none $TMP/tri_colored.tif ${TERRAIN_DIR}/tri/ 2>&1
+echo "TRI tiles: $(find ${TERRAIN_DIR}/tri -name '*.png' | wc -l)"
+
+echo ''
+echo '=== Stats ==='
+echo "Hypso:"
+for z in 8 9 10 11 12; do
+  echo "  zoom $z: $(find ${TERRAIN_DIR}/hypso/$z -name '*.png' -size +400c 2>/dev/null | wc -l) non-empty"
+done
+echo "TRI:"
+for z in 8 9 10 11 12; do
+  echo "  zoom $z: $(find ${TERRAIN_DIR}/tri/$z -name '*.png' -size +400c 2>/dev/null | wc -l) non-empty"
+done
+
+echo ''
+echo "=== DONE ==="
+echo "End: $(date)"