%PDF-
%PDF-
Mini Shell
Mini Shell
const radToDeg = (rad) => (rad * 180) / Math.PI;
const rotate = (v) => {
const angle = radToDeg(Math.atan2(v[1], v[0]));
return rebaseAngle(angle);
};
const matrix2dParsers = {
x: 4,
y: 5,
translateX: 4,
translateY: 5,
scaleX: 0,
scaleY: 3,
scale: (v) => (Math.abs(v[0]) + Math.abs(v[3])) / 2,
rotate,
rotateZ: rotate,
skewX: (v) => radToDeg(Math.atan(v[1])),
skewY: (v) => radToDeg(Math.atan(v[2])),
skew: (v) => (Math.abs(v[1]) + Math.abs(v[2])) / 2,
};
const rebaseAngle = (angle) => {
angle = angle % 360;
if (angle < 0)
angle += 360;
return angle;
};
const rotateZ = rotate;
const scaleX = (v) => Math.sqrt(v[0] * v[0] + v[1] * v[1]);
const scaleY = (v) => Math.sqrt(v[4] * v[4] + v[5] * v[5]);
const matrix3dParsers = {
x: 12,
y: 13,
z: 14,
translateX: 12,
translateY: 13,
translateZ: 14,
scaleX,
scaleY,
scale: (v) => (scaleX(v) + scaleY(v)) / 2,
rotateX: (v) => rebaseAngle(radToDeg(Math.atan2(v[6], v[5]))),
rotateY: (v) => rebaseAngle(radToDeg(Math.atan2(-v[2], v[0]))),
rotateZ,
rotate: rotateZ,
skewX: (v) => radToDeg(Math.atan(v[4])),
skewY: (v) => radToDeg(Math.atan(v[1])),
skew: (v) => (Math.abs(v[1]) + Math.abs(v[4])) / 2,
};
function defaultTransformValue(name) {
return name.includes("scale") ? 1 : 0;
}
function parseValueFromTransform(transform, name) {
if (!transform || transform === "none") {
return defaultTransformValue(name);
}
const matrix3dMatch = transform.match(/^matrix3d\(([-\d.e\s,]+)\)$/u);
let parsers;
let match;
if (matrix3dMatch) {
parsers = matrix3dParsers;
match = matrix3dMatch;
}
else {
const matrix2dMatch = transform.match(/^matrix\(([-\d.e\s,]+)\)$/u);
parsers = matrix2dParsers;
match = matrix2dMatch;
}
if (!match) {
return defaultTransformValue(name);
}
const valueParser = parsers[name];
const values = match[1].split(",").map(convertTransformToNumber);
return typeof valueParser === "function"
? valueParser(values)
: values[valueParser];
}
const readTransformValue = (instance, name) => {
const { transform = "none" } = getComputedStyle(instance);
return parseValueFromTransform(transform, name);
};
function convertTransformToNumber(value) {
return parseFloat(value.trim());
}
export { defaultTransformValue, parseValueFromTransform, readTransformValue };
Zerion Mini Shell 1.0