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GenevensiS
29 lines
1.9 KiB
Plaintext
29 lines
1.9 KiB
Plaintext
Function: add_drop_shadow
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--Usage--
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> add_drop_shadow(image, offset_x: offset, offset_y: offset)
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Add a drop shadow to an image.
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The shadow is based on the opacity of the image.
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To make sure the shadow doesn't fall outside the image, it can be a good idea to [[fun:enlarge]] the image first.
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--Parameters--
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! Parameter Type Default Description
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| @input@ [[type:image]] Image to add drop shadow to
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| @offset_x@ [[type:double]] 0 Relative position of the shadow, a positive number moves the shadow to the left.<br />
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Value is in the range 0 (no movement) to 1 (move by the width of the image)
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| @offset_y@ [[type:double]] 0 Relative position of the shadow, a positive number moves the shadow down.<br />
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Value is in the range 0 (no movement) to 1 (move by the height of the image)
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| @blur_radius@ [[type:double]] 0 Amount to blur the shadow.
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| @alpha@ [[type:double]] 0 Opacity of the shadow, in the range 0 (fully transparent) to 1 (fully opaque)
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| @color@ [[type:color]] black Color of the shadow.
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--Examples--
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> add_drop_shadow("image4.png", offset_x: 0.08, offset_y: 0.08, alpha: 0.5) == [[Image]]
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>>> add_drop_shadow(<img src="image4.png" alt='"image1.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />, offset_x: 0.08, offset_y: 0.08, alpha: 0.5) == <img src="image_drop_shadow_1.png" alt='"image_drop_shadow_1.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />
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> add_drop_shadow("image4.png", offset_x: -0.1, offset_y: 0.1, alpha: 1, color: rgb(0,0,255), blur_radius: 0.05) == [[Image]]
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>>> add_drop_shadow(<img src="image4.png" alt='"image1.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />, offset_x: -0.1, offset_y: 0.1, alpha: 1, color: rgb(0,0,255), blur_radius: 0.05) == <img src="image_drop_shadow_2.png" alt='"image_drop_shadow_1.png"' style="border:1px solid black;vertical-align:middle;margin:1px;" />
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