SVG_SET_STROKE_VECTOR

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4D v20 R7

SVG_SET_STROKE_VECTOR_EFFECT


SVG_SET_STROKE_VECTOR_EFFECT ( svgObj {; vectorEffect} )

Parameter	Type	Description
svgObj	SVG_Ref	Reference of SVG element
vectorEffect	String	"non-scaling-stroke", "none", "inherit"

Description

The SVG_SET_STROKE_VECTOR_EFFECT command sets the vector-effect attribute for the lines of the svgObj. The vector-effect attribute specifies the behavior of an object's stroke if the object is transformed, for example by zooming in or out.

In the svgObj parameter, pass a reference to the SVG element whose vector-effect attribute will be set. If svgObj does not reference an SVG element, an error is generated. If the vector-effect attribute has already been defined, its value is replaced by the vectorEffect parameter.

The optional vectorEffect parameter indicates the value to be used for the attribute. The following values are available:


vectorEffect	Description
"non-scaling-stroke"	Stroke (line) width is not dependant on the transformations of the element
"none"	No vector effect is applied
"inherit"	The value of the element's parent is used

If vectorEffect is omitted, the vector-effect attribute is removed (equivalent to "none").

Example

The following code creates a rectangle and resizes it:

 C_TEXT($Dom_rect;$Dom_svg)

 $Dom_svg:=SVG_New

 $Dom_rect:=SVG_New_rect($Dom_svg;10;10;100;100;0;0;"blue";"red")

 SVG_SET_STROKE_WIDTH($Dom_rect;2;"px")

 

  // Redimension

 SVG_SET_TRANSFORM_SCALE($Dom_rect;4;1)

By default, line thickness is modified:

To resize without changing line thickness, add SVG_SET_STROKE_VECTOR_EFFECT:

 C_TEXT($Dom_rect;$Dom_svg)

 $Dom_svg:=SVG_New

 $Dom_rect:=SVG_New_rect($Dom_svg;10;10;100;100;0;0;"blue";"red")

 SVG_SET_STROKE_WIDTH($Dom_rect;2;"px")

 

  // Redimension

 SVG_SET_TRANSFORM_SCALE($Dom_rect;4;1)

 

  // Set non-scalling

 SVG_SET_STROKE_VECTOR_EFFECT($Dom_rect;"non-scaling-stroke")

The line thickness is not modified: