92 lines
2.1 KiB
Bash
Executable File
92 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# Render OpenSCAD with parameters from a JSON file
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# Usage: render-with-params.sh input.scad params.json output.stl|output.png
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set -e
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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source "$SCRIPT_DIR/common.sh"
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check_openscad
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if [ $# -lt 3 ]; then
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echo "Usage: $0 input.scad params.json output.[stl|png]"
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echo ""
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echo "params.json format:"
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echo ' {"width": 60, "height": 40, "include_lid": true}'
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exit 1
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fi
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INPUT="$1"
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PARAMS_FILE="$2"
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OUTPUT="$3"
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if [ ! -f "$INPUT" ]; then
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echo "Error: Input file not found: $INPUT"
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exit 1
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fi
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if [ ! -f "$PARAMS_FILE" ]; then
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echo "Error: Params file not found: $PARAMS_FILE"
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exit 1
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fi
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# Build -D arguments from JSON
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DEFINES=()
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while IFS= read -r line; do
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# Parse each key-value pair
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key=$(echo "$line" | cut -d'=' -f1)
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value=$(echo "$line" | cut -d'=' -f2-)
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if [ -n "$key" ]; then
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DEFINES+=("-D" "$key=$value")
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fi
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done < <(
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# Use python or jq to parse JSON to key=value lines
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if command -v python3 &> /dev/null; then
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python3 -c "
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import json
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with open('$PARAMS_FILE') as f:
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params = json.load(f)
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for k, v in params.items():
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if isinstance(v, bool):
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print(f'{k}={str(v).lower()}')
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elif isinstance(v, str):
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print(f'{k}=\"{v}\"')
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else:
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print(f'{k}={v}')
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"
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elif command -v jq &> /dev/null; then
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jq -r 'to_entries | .[] | "\(.key)=\(.value)"' "$PARAMS_FILE"
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else
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echo "Error: Requires python3 or jq to parse JSON"
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exit 1
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fi
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)
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echo "Rendering with parameters from: $PARAMS_FILE"
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echo "Parameters: ${DEFINES[*]}"
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# Determine output type and set appropriate options
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EXT="${OUTPUT##*.}"
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case "$EXT" in
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stl|STL)
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$OPENSCAD "${DEFINES[@]}" -o "$OUTPUT" "$INPUT"
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;;
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png|PNG)
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$OPENSCAD "${DEFINES[@]}" \
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--camera="0,0,0,55,0,25,0" \
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--imgsize="800,600" \
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--colorscheme="Tomorrow Night" \
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--autocenter --viewall \
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-o "$OUTPUT" "$INPUT"
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;;
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*)
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echo "Unsupported output format: $EXT"
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echo "Supported: stl, png"
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exit 1
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;;
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esac
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echo "Output saved: $OUTPUT"
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