デザイナーさんに、UnityってPhotoshopでいうガイドみたいなの無いの?と言われたので作ってみました。
void OnDrawGizmos ()
{
RectTransform rectTransform = transform as RectTransform;
float xOffset = transform.position.x - transform.localPosition.x;
float yOffset = transform.position.y - transform.localPosition.y;
//左端x
float x1 = (transform.localPosition.x - (rectTransform.sizeDelta.x * rectTransform.pivot.x) * transform.lossyScale.x) + xOffset;
//右端x
float x2 = (transform.localPosition.x + (rectTransform.sizeDelta.x * (1f - rectTransform.pivot.x) * transform.lossyScale.x))+ xOffset;
//上端y
float y1 = (transform.localPosition.y - (rectTransform.sizeDelta.y * rectTransform.pivot.y) * transform.lossyScale.y) + yOffset;
//下端y
float y2 = (transform.localPosition.y + (rectTransform.sizeDelta.y * (1f - rectTransform.pivot.y) * transform.lossyScale.y)) + yOffset;
float max = 100000f;
float min = -100000f;
Gizmos.color = new Color32(255,0,0,100);
Gizmos.DrawLine(new Vector3(x1,min,0f), new Vector3(x1,max,0f));
Gizmos.DrawLine(new Vector3(x2,min,0f), new Vector3(x2,max,0f));
Gizmos.DrawLine(new Vector3(min,y1,0f), new Vector3(max,y1,0f));
Gizmos.DrawLine(new Vector3(min,y2,0f), new Vector3(max,y2,0f));
}
やっていること
RectTransformの4点の座標を計算し、world座標に直してGismoで描画