How to use the @antv/gl-matrix/lib/gl-matrix/vec2.vertical function in @antv/gl-matrix
To help you get started, we’ve selected a few @antv/gl-matrix examples, based on popular ways it is used in public projects.
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antvis / util / packages / matrix-util / src / vec2.ts View on Github 
const angleLargeThanPI = vec2.direction(v1, v2) >= 0;
if (direct) {
if (angleLargeThanPI) {
return Math.PI * 2 - angle;
}
return angle;
}
if (angleLargeThanPI) {
return angle;
}
return Math.PI * 2 - angle;
};
vec2.vertical = function (out: number[], v: number[], flag: boolean): number[] {
if (flag) {
out[0] = v[1];
out[1] = -1 * v[0];
} else {
out[0] = -1 * v[1];
out[1] = v[0];
}
return out;
};
export default vec2;@antv/gl-matrix
Javascript Matrix and Vector library for High Performance WebGL apps
