53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
package animation
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import (
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"fmt"
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)
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// TransformAnimation 变换动画
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type TransformAnimation struct {
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BaseAnimation
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TransformType string // 变换类型（scale, translate等）
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From string // 起始变换值
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To string // 结束变换值
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}
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// NewTransformAnimation 创建一个变换动画
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func NewTransformAnimation(targetID string, transformType string, from, to string, duration float64, repeatCount int) *TransformAnimation {
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return &TransformAnimation{
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BaseAnimation: BaseAnimation{
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Type: Transform,
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Duration: duration,
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RepeatCount: repeatCount,
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Delay: 0,
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TargetID: targetID,
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Attributes: make(map[string]string),
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},
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TransformType: transformType,
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From: from,
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To: to,
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}
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}
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// GenerateSVG 生成变换动画的SVG代码
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func (a *TransformAnimation) GenerateSVG() string {
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// 创建一个animateTransform元素，并将其添加到目标元素中
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svg := fmt.Sprintf("<animateTransform href=\"#%s\" attributeName=\"transform\" attributeType=\"XML\" type=\"%s\" ", a.TargetID, a.TransformType)
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svg += fmt.Sprintf("from=\"%s\" to=\"%s\" ", a.From, a.To)
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svg += fmt.Sprintf("dur=\"%gs\" ", a.Duration)
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if a.RepeatCount < 0 {
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svg += "repeatCount=\"indefinite\" "
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} else if a.RepeatCount > 0 {
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svg += fmt.Sprintf("repeatCount=\"%d\" ", a.RepeatCount)
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}
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if a.Delay > 0 {
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svg += fmt.Sprintf("begin=\"%gs\" ", a.Delay)
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}
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svg += "additive=\"sum\" />\n"
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return svg
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}
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