Opacity
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Description
opacity(node_id, opacity) opacity(node_id, opacity, animation_type) (from AM/AP 4.0) opacity(node_id, opacity, animation_type, animation_speed) (from AM/AP 4.0)
opacity is used to change the opacity of a node (opaque -> transparent). This can be an image, text, switch, button, dial, joystick, slider, map, scroll wheel or a group.
Return value
This function won't return a value.
Arguments
| # | Argument | Type | Description |
|---|---|---|---|
| 1 | node_id | ID | Node identifier. This number can be obtained by calling functions like img_add or txt_add. |
| 2 | opacity | Float | Ranges from 0.0 (Transparant) to 1.0 (Opaque). |
| 3 | animation_type | String | (Optional) Can be 'OFF', 'LINEAR' or 'LOG'. |
| 4 | animation_speed | Float | (Optional) Animation speed. Between 1.0 (Fastest) and 0.0 (Slowest) |
Example (Simple)
-- Load and display text and images
myimage1 = img_add_fullscreen("myimage1.png")
-- Images are fully opaque by default
-- Fully transparant
opacity(myimage1, 0.0)
-- And make it show again!
opacity(myimage1, 1.0)
-- 50% transparant
opacity(myimage1, 0.5)Example (Animation)
-- Add an image
myimage1 = img_add_fullscreen("myimage1.png")
-- Enable animation
opacity(myimage1, 1.0, "LOG", 0.04)
-- Any opacity done at this point will be animated
opacity(myimage1, 0)