auto-sync: 2026-05-13 12:20:01

tasks/enduro-trails/scripts/download_gap.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+set -e
+
+cd /home/slin/enduro-trails/data/srtm
+
+echo 'Missing files to download:'
+for lat in 54 55 56; do
+  for lon in 041 042 043 044 045 046; do
+    f="N${lat}E${lon}.hgt"
+    if [ ! -f "$f" ]; then
+      echo "  $f"
+    fi
+  done
+done
+
+echo ''
+echo 'Downloading missing...'
+for lat in 54 55 56; do
+  for lon in 041 042 043 044 045 046; do
+    f="N${lat}E${lon}"
+    if [ ! -f "${f}.hgt" ]; then
+      wget -q "https://firmware.ardupilot.org/SRTM/ap_srtm3/${f}.hgt.zip" -O "/tmp/${f}.hgt.zip" 2>/dev/null
+      if [ -s "/tmp/${f}.hgt.zip" ]; then
+        unzip -o -q "/tmp/${f}.hgt.zip" -d . 2>/dev/null && echo "  OK: ${f}" || echo "  UNZIP FAIL: ${f}"
+        rm -f "/tmp/${f}.hgt.zip"
+      else
+        echo "  NOT FOUND on ardupilot: ${f}"
+        rm -f "/tmp/${f}.hgt.zip"
+      fi
+    else
+      echo "  EXISTS: ${f}"
+    fi
+  done
+done
+
+echo ''
+echo 'Total HGT files now:'
+ls *.hgt | wc -l

tasks/enduro-trails/scripts/download_gap_v2.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+set -e
+
+cd /home/slin/enduro-trails/data/srtm
+
+echo 'Downloading missing SRTM tiles from multiple mirrors...'
+
+download_tile() {
+  local tile=$1
+  local f="${tile}.hgt"
+  
+  if [ -f "$f" ]; then
+    echo "  EXISTS: $f"
+    return 0
+  fi
+  
+  # Mirror 1: USGS via e4ftl01 (SRTMGL3 - 3 arc-second, no auth for v003)
+  # Mirror 2: OpenData AWS terrain tiles
+  # Mirror 3: viewfinderpanoramas.org
+  
+  local lat_num=${tile:1:2}
+  local lon_num=${tile:4:3}
+  
+  # Try viewfinderpanoramas (grouped by lat band in zip)
+  # Individual files available at: http://viewfinderpanoramas.org/dem3/N55/N55E041.hgt.zip
+  local vfp_url="http://viewfinderpanoramas.org/dem3/${tile:0:3}/${tile}.hgt.zip"
+  wget -q --timeout=30 "$vfp_url" -O "/tmp/${tile}.zip" 2>/dev/null
+  if [ -s "/tmp/${tile}.zip" ]; then
+    unzip -o -q "/tmp/${tile}.zip" -d . 2>/dev/null
+    if [ -f "$f" ]; then
+      echo "  OK (viewfinder): $f ($(du -h $f | cut -f1))"
+      rm -f "/tmp/${tile}.zip"
+      return 0
+    fi
+  fi
+  rm -f "/tmp/${tile}.zip"
+  
+  # Try CGIAR SRTM v4 (5x5 degree tiles, different naming)
+  # Try direct NASA mirror
+  local nasa_url="https://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL3.003/2000.02.11/${tile}.SRTMGL3.hgt.zip"
+  wget -q --timeout=30 "$nasa_url" -O "/tmp/${tile}.zip" 2>/dev/null
+  if [ -s "/tmp/${tile}.zip" ]; then
+    unzip -o -q "/tmp/${tile}.zip" -d . 2>/dev/null
+    if [ -f "$f" ]; then
+      echo "  OK (nasa): $f ($(du -h $f | cut -f1))"
+      rm -f "/tmp/${tile}.zip"
+      return 0
+    fi
+  fi
+  rm -f "/tmp/${tile}.zip"
+  
+  # Try sonny's mirror (reliable for SRTM3)
+  local sonny_url="https://srtm.kurviger.de/SRTM3/Eurasia/${tile}.hgt.zip"
+  wget -q --timeout=30 "$sonny_url" -O "/tmp/${tile}.zip" 2>/dev/null
+  if [ -s "/tmp/${tile}.zip" ]; then
+    unzip -o -q "/tmp/${tile}.zip" -d . 2>/dev/null
+    if [ -f "$f" ]; then
+      echo "  OK (kurviger): $f ($(du -h $f | cut -f1))"
+      rm -f "/tmp/${tile}.zip"
+      return 0
+    fi
+  fi
+  rm -f "/tmp/${tile}.zip"
+  
+  echo "  FAIL: $tile (all mirrors failed)"
+  return 1
+}
+
+# Clean up stale downloads
+rm -f /tmp/N*.hgt.zip
+
+for lat in 54 55 56; do
+  for lon in 041 042 043 044 045 046; do
+    download_tile "N${lat}E${lon}"
+  done
+done
+
+echo ''
+echo "Total HGT files: $(ls *.hgt | wc -l)"
+echo "E041-E046 coverage:"
+ls *E04[1-6]* 2>/dev/null | grep -E "N5[456]" | sort

tasks/enduro-trails/scripts/download_missing_srtm.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+set -e
+
+echo '=== DOWNLOAD MISSING SRTM FILES (E041-E046, N54-N56) ==='
+echo "Start: $(date)"
+
+SRTM_DIR='/home/slin/enduro-trails/data/srtm'
+cd $SRTM_DIR
+
+# Missing tiles for the gap between Vladimir (E040) and Cheboksary (E047)
+# Latitudes N54-N56 (main coverage area)
+TILES="N54E041 N54E046 N55E041 N55E042 N55E043 N55E044 N55E045 N55E046 N56E041 N56E042 N56E043 N56E044 N56E045 N56E046"
+
+# Also fill N53 gap
+TILES="$TILES N53E046 N53E047"
+
+# SRTM v4.1 from CGIAR (free, no auth needed)
+# URL pattern: https://srtm.csi.cgiar.org/wp-content/uploads/files/srtm_5x5/TIFF/
+# Alternative: NASA EarthData (needs auth) or viewfinderpanoramas.org
+
+# Use viewfinderpanoramas.org - direct HGT downloads
+BASE_URL="https://viewfinderpanoramas.org/dem3"
+
+count=0
+for tile in $TILES; do
+  if [ -f "${tile}.hgt" ]; then
+    echo "SKIP: ${tile}.hgt already exists"
+    continue
+  fi
+  
+  # Extract lat letter (N/S) and first 2 digits for directory
+  lat_letter=${tile:0:1}
+  lat_num=${tile:1:2}
+  
+  # viewfinderpanoramas uses zip files grouped by latitude band
+  # Try direct NASA SRTM mirror instead
+  # https://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL1.003/2000.02.11/
+  # Needs .SRTMGL1.hgt.zip format - requires auth
+  
+  # Use OpenTopography or direct SRTM mirror
+  # Simplest: use elevation-tiles from AWS (no auth)
+  echo "Downloading ${tile}..."
+  
+  # Try USGS SRTM mirror (no auth for SRTM3/1-arc-second)
+  wget -q "https://firmware.ardupilot.org/SRTM/ap_srtm3/${tile}.hgt.zip" -O "/tmp/${tile}.hgt.zip" 2>/dev/null
+  if [ $? -eq 0 ] && [ -s "/tmp/${tile}.hgt.zip" ]; then
+    unzip -o -q "/tmp/${tile}.hgt.zip" -d $SRTM_DIR/
+    rm -f "/tmp/${tile}.hgt.zip"
+    echo "  OK: ${tile}.hgt ($(du -h ${tile}.hgt | cut -f1))"
+    count=$((count + 1))
+  else
+    echo "  FAIL: ${tile} not available from ardupilot mirror"
+    # Try alternative
+    wget -q "http://viewfinderpanoramas.org/dem3/${lat_letter}${lat_num}/${tile}.hgt.zip" -O "/tmp/${tile}.hgt.zip" 2>/dev/null
+    if [ $? -eq 0 ] && [ -s "/tmp/${tile}.hgt.zip" ]; then
+      unzip -o -q "/tmp/${tile}.hgt.zip" -d $SRTM_DIR/
+      rm -f "/tmp/${tile}.hgt.zip"
+      echo "  OK (viewfinder): ${tile}.hgt"
+      count=$((count + 1))
+    else
+      echo "  FAIL: ${tile} not found"
+    fi
+  fi
+done
+
+echo ""
+echo "Downloaded: $count new files"
+echo "Total HGT files: $(ls $SRTM_DIR/*.hgt | wc -l)"
+echo "End: $(date)"