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TSVGUnit Enumeration

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Defines the SVG unit type, which specifies the different units of measurement that can be specified for a SVG length

Namespace: RSSVGTypes

Delphi

type
TSVGUnit = (suNone, suPixels, suPoints, suPicas, suMillimeters,
suCentimeters, suInches, suFontSize, suFontXHeight, suPercent);

	Name	Description
	suCentimeters	Represents constant suCentimeters.
	suFontSize	Represents constant suFontSize.
	suFontXHeight	Represents constant suFontXHeight.
	suInches	Represents constant suInches.
	suMillimeters	Represents constant suMillimeters.
	suNone	Represents constant suNone.
	suPercent	Represents constant suPercent.
	suPicas	Represents constant suPicas.
	suPixels	Represents constant suPixels.
	suPoints	Represents constant suPoints.

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A length is a distance measurement, given as a number along with a unit which may be optional.

When a length is used in a style sheet or with a property in a ‘style’ attribute, the syntax must match the following pattern:
length ::= number (~"em" | ~"ex" | ~" px" | ~"in" | ~"cm" | ~"mm" | ~"pt" | ~"pc")?

When a length is used in an SVG presentation attribute, the syntax must match the following pattern:
length ::= number ("em" | "ex" | "px" | "in" | "cm" | "mm" | "pt" | "pc" | "%")?

Note that the non-property definition also allows a percentage unit identifier. The meaning of a percentage length value depends on the attribute for which the percentage length value has been specified. Two common cases are: (a) when a percentage length value represents a percentage of the viewport width or height, and (b) when a percentage length value represents a percentage of the bounding box width or height on a given object.

Reference

•	RSSVGTypes

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