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| #!/bin/bash | |
| # | |
| # Takes a SVG as input, generates a PNG rendering, DeepZoom tiles and a JSON | |
| # block containing node coordinates for search. | |
| # | |
| ############################################################################### | |
| # CONFIG | |
| ############################################################################### | |
| if [[ -s "linkgraph.conf" ]]; then | |
| source "linkgraph.conf" # Local overrides | |
| fi | |
| pushd ${BASH_SOURCE%/*} > /dev/null | |
| SCRIPT_HOME="$(pwd)" | |
| : ${SVG:="$1"} | |
| B=${SVG%.*} | |
| DZI="${B}.dzi" | |
| : ${DEST:="$2"} | |
| : ${DEST:="$B"} | |
| : ${PNG:="${DEST}/${B}.png"} | |
| : ${TEMPLATE:="presentation_template.html"} | |
| # PNG & DeepZoom tile parameters | |
| : ${RENDER_SIZE:="20000"} | |
| : ${RENDER_WIDTH:="$RENDER_SIZE"} | |
| : ${RENDER_HEIGHT:="$RENDER_SIZE"} | |
| : ${FORMAT:="png"} # Gephi charts are circles, lines and text so PNG is probably best choice | |
| # Where to get OpenSeadragon | |
| : ${OSD_VERSION:=2.2.1} | |
| : ${OSD_ZIP:="openseadragon-bin-${OSD_VERSION}.zip"} | |
| : ${OSD_URL:="http://github.com/openseadragon/openseadragon/releases/download/v${OSD_VERSION}/$OSD_ZIP"} | |
| : ${DAT_LINKS:="${DEST}/links.dat"} | |
| : ${DAT_POS:="${DEST}/position.dat"} | |
| : ${DAT_ALL:="${DEST}/all.dat"} | |
| popd > /dev/null | |
| function usage() { | |
| echo "Usage: ./generate_presentation mygraph.svg" | |
| exit $1 | |
| } | |
| check_parameters() { | |
| if [[ -z "$SVG" ]]; then | |
| >&2 echo "Error: No input file specified" | |
| usage 2 | |
| fi | |
| if [[ ! -s "$SVG" ]]; then | |
| >&2 echo "Error: Unable to read '$SVG'" | |
| usage 3 | |
| fi | |
| mkdir -p "$DEST" | |
| local MISSING=false | |
| if [[ .$(which gm) == . ]]; then | |
| >&2 echo "Error: 'gm' (GraphicsMagic) not available, please install it" | |
| MISSING=true | |
| fi | |
| if [[ .$(which vips) == . ]]; then | |
| >&2 echo "Error: 'vips' not available, please install it" | |
| MISSING=true | |
| fi | |
| if [[ "true" == "$MISSING" ]]; then | |
| usage 2 | |
| fi | |
| SVG_ABSOLUTE=$(echo "$(cd "$(dirname "$SVG")"; pwd)/$(basename "$SVG")") | |
| PNG_ABSOLUTE=$(echo "$(cd "$(dirname "$PNG")"; pwd)/$(basename "$PNG")") | |
| } | |
| ################################################################################ | |
| # FUNCTIONS | |
| ################################################################################ | |
| fetch_dragon() { | |
| if [[ -s "$SCRIPT_HOME/osd/$OSD_ZIP" ]]; then | |
| return | |
| fi | |
| mkdir -p "$SCRIPT_HOME/osd/" | |
| echo " - Fetching $OSD_ZIP from $OSD_URL" | |
| wget -q "$OSD_URL" -O "$SCRIPT_HOME/osd/$OSD_ZIP" | |
| if [[ ! -s "$SCRIPT_HOME/osd/$OSD_ZIP" ]]; then | |
| >&2 echo "Error: Unable to fetch OpenSeadragon ZIP from $OSD_URL" | |
| >&2 echo "Please download is manually and store it in $SCRIPT_HOME/osd/" | |
| exit 3 | |
| fi | |
| } | |
| # Expands variables and callbacks in the provided template | |
| # http://stackoverflow.com/questions/14434549/how-to-expand-shell-variables-in-a-text-file | |
| # Input: template-file | |
| function ctemplate() { | |
| if [[ ! -s "$1" ]]; then | |
| >&2 echo "Error: Template '$1' could not be found" | |
| exit 8 | |
| fi | |
| local TMP=$(mktemp /tmp/graph_presenter_XXXXXXXX) | |
| echo 'cat <<END_OF_TEXT' > "$TMP" | |
| cat "$1" >> "$TMP" | |
| echo 'END_OF_TEXT' >> "$TMP" | |
| . "$TMP" | |
| rm "$TMP" | |
| } | |
| create_png() { | |
| if [[ -s "$PNG" ]]; then | |
| echo "- Skipping generation of $PNG as it already exists" | |
| return | |
| fi | |
| echo "- Generating $PNG with dimensions ${RENDER_WIDTH}x${RENDER_HEIGHT} pixels" | |
| # ImageMagic does not handle large SVGs well, so we use GraphicsMagic | |
| gm convert -size ${RENDER_WIDTH}x${RENDER_HEIGHT} "$SVG" "$PNG" | |
| } | |
| create_deepzoom() { | |
| if [[ -d "${DEST}/${B}_files" ]]; then | |
| echo "- Skipping DeepZoom tile generation as '${DEST}/${B}_files' already exists" | |
| return | |
| fi | |
| echo "- Generating DeepZoom tiles in ${DEST}/${B}_files" | |
| pushd "$DEST" > /dev/null | |
| vips dzsave ${PNG_ABSOLUTE} ${B} --suffix .$FORMAT | |
| popd > /dev/null | |
| } | |
| # <circle fill-opacity="1.0" fill="#ff5584" r="20.0" cx="-54.279125" | |
| # class="id_ekot.dk" cy="-78.99566" stroke="#000000" | |
| # stroke-opacity="1.0" stroke-width="1.0"/> | |
| normalise_svg() { | |
| tr '\n' ' ' < "$SVG" | sed -e 's/> */>/g' -e 's/ *</</g' | xmllint --format - | |
| } | |
| # domain in out total | |
| extract_link_stats() { | |
| if [[ ! -s "$DAT_LINKS" ]]; then | |
| local T_IN=$(mktemp) | |
| local T_OUT=$(mktemp) | |
| grep -o 'class="[^ "]\+ id_[^"]*' "$SVG" | sed 's/class="[^ "]\+ id_\(.*\)/\1/' | sort | uniq -c | sed 's/\s*\([0-9]*\) \(.*\)/\2 \1/' | LC_ALL=C sort > $T_IN | |
| grep -o 'class="id_[^ "]* ' "$SVG" | sed 's/class="id_\(.*\) /\1/' | sort | uniq -c | sed 's/\s*\([0-9]*\) \(.*\)/\2 \1/' | LC_ALL=C sort > $T_OUT | |
| LC_ALL=C join -j 1 -a 1 -a 2 -e 0 -o 0 1.2 2.2 $T_IN $T_OUT | sed 's/\(.*\) \([0-9]\+\) \([0-9]\+\)$/echo "\1 \2 \3 $((\2+\3))"/e' > "$DAT_LINKS" | |
| rm $T_IN $T_OUT | |
| fi | |
| cat "$DAT_LINKS" | |
| } | |
| extract_viewbox() { | |
| grep -o 'viewBox="[^"]*' < "$SVG" | sed 's/.*"\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) */var viewbox= {x1: \1, y1: \2, x2: \3, y2: \4};/' | |
| } | |
| # domain x y r | |
| extract_nodes_circles_raw() { | |
| if [[ ! -s "$DAT_POS" ]]; then | |
| tr '\n' ' ' < "$SVG" | grep -o "<circle [^/]*/>" | sed 's/<circle.* r="\([^"]*\)".* cx="\([^"]*\)".* class="id_\([^"]*\)".* cy="\([^"]*\)".*\/>/\3 \2 \4 \1/' | LC_ALL=C sort > "$DAT_POS" | |
| fi | |
| cat "$DAT_POS" | |
| } | |
| # domain x y r in out all | |
| extract_all_raw() { | |
| if [[ ! -s "$DAT_ALL" ]]; then | |
| join -j 1 -a 1 -a 2 -e 0 -o 0 2.2 2.3 2.4 1.2 1.3 1.4 <(extract_link_stats) <(extract_nodes_circles_raw) > "$DAT_ALL" | |
| fi | |
| cat "$DAT_ALL" | |
| } | |
| extract_domains() { | |
| echo "var domains= [" | |
| extract_all_raw | sed 's/\([^ ]\+\) \([^ ]\+\) \([^ ]\+\) \([^ ]\+\) \([^ ]\+\) \([^ ]\+\) \([^ ]\+\)/{d:"\1", x:\2, y:\3, r:\4, in:\5, out:\6, both:\7},/' | |
| echo "];" | |
| } | |
| extract_all_json() { | |
| if [[ -s "${DEST}/nodes.js" ]]; then | |
| echo "- Skipping node data extraction as '${DEST}/nodes.js' already exists" | |
| return | |
| fi | |
| echo "- Extracting node data to ${DEST}/nodes.js" | |
| extract_viewbox > "${DEST}/nodes.js" | |
| extract_domains >> "${DEST}/nodes.js" | |
| } | |
| copy_files() { | |
| echo "- Copying files and applying template $TEMPLATE to $DEST" | |
| if [[ ! -d "$DEST/resources" ]]; then | |
| cp -r "$SCRIPT_HOME/resources" "$DEST/" | |
| fi | |
| unzip -q -o -j -d "$DEST/resources/" "$SCRIPT_HOME/osd/openseadragon-bin-${OSD_VERSION}.zip" ${OSD_ZIP%.*}/openseadragon.min.js | |
| unzip -q -o -j -d "$DEST/resources/images/" "$SCRIPT_HOME/osd/openseadragon-bin-${OSD_VERSION}.zip" $(unzip -l "$SCRIPT_HOME/osd/openseadragon-bin-"*.zip | grep -o "opensea.*.png" | tr '\n' ' ') | |
| ctemplate "$TEMPLATE" > "$DEST/index.html" | |
| } | |
| ############################################################################### | |
| # CODE | |
| ############################################################################### | |
| check_parameters "$@" | |
| echo "Starting processing of $SVG $(date +"%Y-%m%d %H:%M")" | |
| fetch_dragon | |
| create_png | |
| create_deepzoom | |
| extract_all_json | |
| copy_files | |
| echo "Finished $(date +"%Y-%m%d %H:%M"), result in $DEST" |