thank you for answering, but I already tried and I realized that it is impossible to make an object, follow the same position of the cursor, if I multiply the value of the mouse x2, less or more the value that is missing for the object to be centered, not It works completely. in cyberix there are several parameters like (math), (pi), but I do not know if that helps.
is that I am currently designing a drawing tool with brushes of various types, but I could not make the object that generates the strokes of the drawing, are in the same position of the mouse