Documentation
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Overview ¶
Package transform provides SVG transform parsing, matrix operations, and decomposition, ported from SVGO's plugins/_transforms.js.
Index ¶
- func AcosDeg(val float64, floatPrecision int) float64
- func AsinDeg(val float64, floatPrecision int) float64
- func AtanDeg(val float64, floatPrecision int) float64
- func JS2Transform(transforms []TransformItem, params *TransformParams) string
- func MultiplyTransformMatrices(a, b []float64) []float64
- func RoundTransform(t *TransformItem, params *TransformParams)
- func TransformArc(cursor [2]float64, arc []float64, transform []float64) []float64
- type TransformItem
- type TransformParams
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func JS2Transform ¶
func JS2Transform(transforms []TransformItem, params *TransformParams) string
JS2Transform converts transforms to an SVG transform attribute string.
func MultiplyTransformMatrices ¶
MultiplyTransformMatrices multiplies two 2D affine transformation matrices. Each matrix is [a, b, c, d, e, f].
func RoundTransform ¶
func RoundTransform(t *TransformItem, params *TransformParams)
RoundTransform rounds transform data based on the params.
Types ¶
type TransformItem ¶
TransformItem represents a single transform function with its parameters.
func MatrixToTransform ¶
func MatrixToTransform(origMatrix *TransformItem, params *TransformParams) []TransformItem
MatrixToTransform decomposes a matrix into simple transforms and optimizes.
func Transform2JS ¶
func Transform2JS(transformString string) []TransformItem
Transform2JS converts a transform attribute string to a slice of TransformItems. Returns nil if the string is malformed.
func TransformsMultiply ¶
func TransformsMultiply(transforms []TransformItem) TransformItem
TransformsMultiply multiplies multiple transforms into a single matrix.
type TransformParams ¶
type TransformParams struct {
ConvertToShorts bool
DegPrecision *int // nil means not set
FloatPrecision int
TransformPrecision int
MatrixToTransform bool
ShortTranslate bool
ShortScale bool
ShortRotate bool
RemoveUseless bool
CollapseIntoOne bool
LeadingZero bool
NegativeExtraSpace bool
NoSpaceAfterFlags bool
}
TransformParams controls transform optimization and output formatting.
Source Files