65 lines
1.3 KiB
Bash
65 lines
1.3 KiB
Bash
#!/bin/bash
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set -e
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echo '=== REGENERATE TRI TILES - threshold start at 15 ==='
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echo "Start: $(date)"
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TMP='/tmp/tri_gen'
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TERRAIN_DIR='/home/slin/enduro-trails/data/terrain'
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TRI_DIR="${TERRAIN_DIR}/tri"
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cat > $TMP/tri_color_v5.txt << 'RAMP'
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nv 0 0 0 0
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0 0 0 0 0
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14 0 0 0 0
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15 255 255 100 60
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20 255 230 50 100
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25 255 200 0 140
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30 255 150 0 180
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40 255 100 0 200
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50 230 50 0 220
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65 200 0 0 235
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80 180 0 50 245
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100 150 0 100 255
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RAMP
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echo 'Color ramp:'
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cat $TMP/tri_color_v5.txt
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echo ''
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echo '=== Step 1: Color relief ==='
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gdaldem color-relief \
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$TMP/tri_raw_full.tif \
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$TMP/tri_color_v5.txt \
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$TMP/tri_colored_v5.tif \
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-alpha \
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-of GTiff \
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-co COMPRESS=LZW \
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-co BIGTIFF=YES
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echo ''
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echo '=== Step 2: Generate tiles (bilinear) ==='
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rm -rf ${TRI_DIR}
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mkdir -p ${TRI_DIR}
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gdal2tiles.py \
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--zoom=5-12 \
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--processes=4 \
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--tilesize=256 \
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--resampling=bilinear \
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--webviewer=none \
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$TMP/tri_colored_v5.tif \
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${TRI_DIR}/
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echo ''
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echo '=== Stats ==='
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for z in 5 6 7 8 9 10 11 12; do
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total=$(find ${TRI_DIR}/$z/ -name '*.png' 2>/dev/null | wc -l)
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nonempty=$(find ${TRI_DIR}/$z/ -name '*.png' -size +400c 2>/dev/null | wc -l)
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echo " zoom $z: $total total, $nonempty non-empty"
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done
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du -sh ${TRI_DIR}
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echo '=== DONE ==='
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echo "End: $(date)"
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