How to hide these outline from my parts, this line and curves appears when I select the part
Do you mean the blue or orange lines & curves?
If the orange, go to Tools > Options > System Options > Display/Selection and deselect the Dynamic highlight from graphics view option.
Well, The orange highlight now is hidden but the blue one still exits, any idea?
The light blue outline color is set in the System Options under Colors. It is the "Selected Item 1", so you can change it to black to make it less apparent, but I don't think you can eliminate it completely. In case you were wondering the darker blue fill color is controlled by the item "Selected Face, Shaded".
I just realized that the same "Selected Item 1" color is used to color the entire part if you select it from the tree. So changing that color to black is probably not the best thing to do.
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