convertor/src/converters/vtracer.ts

80 lines
2 KiB
TypeScript

import { execFile as execFileOriginal } from "node:child_process";
import { ExecFileFn } from "./types";
export const properties = {
from: {
images: ["jpg", "jpeg", "png", "bmp", "gif", "tiff", "tif", "webp"],
},
to: {
images: ["svg"],
},
};
interface VTracerOptions {
colormode?: string;
hierarchical?: string;
mode?: string;
filter_speckle?: string | number;
color_precision?: string | number;
layer_difference?: string | number;
corner_threshold?: string | number;
length_threshold?: string | number;
max_iterations?: string | number;
splice_threshold?: string | number;
path_precision?: string | number;
}
export function convert(
filePath: string,
fileType: string,
convertTo: string,
targetPath: string,
options?: unknown,
execFile: ExecFileFn = execFileOriginal, // to make it mockable
): Promise<string> {
return new Promise((resolve, reject) => {
// Build vtracer arguments
const args = ["--input", filePath, "--output", targetPath];
// Add optional parameter if provided
if (options && typeof options === "object") {
const opts = options as VTracerOptions;
const validOptions: Array<keyof VTracerOptions> = [
"colormode",
"hierarchical",
"mode",
"filter_speckle",
"color_precision",
"layer_difference",
"corner_threshold",
"length_threshold",
"max_iterations",
"splice_threshold",
"path_precision",
];
for (const option of validOptions) {
if (opts[option] !== undefined) {
args.push(`--${option}`, String(opts[option]));
}
}
}
execFile("vtracer", args, (error, stdout, stderr) => {
if (error) {
reject(`error: ${error}${stderr ? `\nstderr: ${stderr}` : ""}`);
return;
}
if (stdout) {
console.log(`stdout: ${stdout}`);
}
if (stderr) {
console.log(`stderr: ${stderr}`);
}
resolve("Done");
});
});
}