| 4D v15SVG_Define_filter | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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    4D v15
 SVG_Define_filter 
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| SVG_Define_filter ( parentSVGObject ; id {; frameX ; frameY {; frameWidth ; frameHeight {; frameUnit ; filterUnit}}}} ) -> 戻り値 | ||||||||
| 引数 | 型 | 説明 | ||||||
| parentSVGObject | SVG_Ref |   | 親要素の参照 | |||||
| id | 文字 |   | シンボル名 | |||||
| frameX | 倍長整数 |   | X軸の座標 | |||||
| frameY | 倍長整数 |   | Y軸の座標 | |||||
| frameWidth | 倍長整数 |   | ターゲットの四角の幅 | |||||
| frameHeight | 倍長整数 |   | ターゲットの四角の高さ | |||||
| frameUnit | 文字 |   | フレームの座標系 | |||||
| filterUnit | 文字 |   | 値のフィルター系 | |||||
| 戻り値 | SVG_Ref |   | フィルターの参照 | |||||
The SVG_Define_filter command sets a new filter in the SVG container designated by parentSVGObject and returns its reference. If parentSVGObject is not an SVG document, an error is generated.
A filter is a succession of graphic operations that will be applied to the target element. The filter element is never rendered directly; it will be applied to an object using the SVG_SET_FILTER command.
The id parameter specifies the name of the marker. The name will be used to associate a filter with an object. If an element with the same name exists, it will be replaced.
The optional frameX, frameY, frameWidth and frameHeight parameters set a rectangular region in the document to which this filter will be applied.
The optional frameUnit parameter sets the coordinate system for the 4 previous parameters. Expected values: "userSpaceOnUse" or "objectBoundingBox" (default value).
The optional filterUnit parameter sets the coordinate system for the lenths and the filter definition properties. Expected values: "userSpaceOnUse" (default value) or "objectBoundingBox".
In this example, we want to perform the following operations:
 $Dom_SVG:=SVG_New
 
  //creation of a rectangle with 50% blue background
 $Dom_rect:=SVG_New_rect($Dom_SVG;50;50;50;50;0;0;"blue:50";"blue:50")
 
  //creation of 4% blur filter
 $Dom_filter:=SVG_Define_filter($Dom_SVG;"blur")
 SVG_Filter_Blur($Dom_filter;4)
 SVG_Filter_Offset($Dom_filter;4)
 
  //application of this filter to the rectangle
 SVG_SET_FILTER($Dom_rect;"blur")
 
  //saving result in an SVG file
 SVG_SAVE_AS_TEXT($Dom_SVG;System folder(Desktop)+"test.svg")
 
 SVG_CLEAR($Dom_SVG)Result:

									SVG_Filter_Blend
									
									SVG_Filter_Blur
									
									SVG_Filter_Offset
									
									SVG_SET_FILTER
									
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