嗨,我正在将konva js(https://konvajs.org)与vue配合使用,我正在尝试对文本进行动画处理,以使其从舞台下滑到屏幕中的某个位置,但是我不是100 %知道这应该如何工作,我已经可以在此处进行演示了;
https://codesandbox.io/s/vue-konva-template-i2em3
Vue;
<v-stage ref="stage" :config="stageSize">
<v-layer ref="layer">
<v-text
ref="text1"
:config="{
text: 'Draggable Text',
x: 50,
y: 50,
draggable: true,
fill: 'black'
}"
/>
</v-layer>
</v-stage>
</template>
<script>
const width = window.innerWidth;
const height = window.innerHeight;
export default {
data() {
return {
stageSize: {
width: width,
height: height
}
};
},
methods: {
changeSize(e) {
// to() is a method of `Konva.Node` instances
e.target.to({
scaleX: Math.random() + 0.8,
scaleY: Math.random() + 0.8,
duration: 0.2
});
}
},
mounted() {
const vm = this;
const amplitude = 100;
const period = 5000;
// in ms
const centerX = vm.$refs.stage.getStage().getWidth() / 2;
const text = this.$refs.text1.getStage();
// example of Konva.Animation
const anim = new Konva.Animation(function(frame) {
text.setX(
amplitude * Math.sin((frame.time * 2 * Math.PI) / period) + centerX
);
}, text.getLayer());
anim.start();
}
};
</script>
有什么想法可以使文本从舞台外部出现然后停在画布中的某个点吗?
答案 0 :(得分:1)
您可以仅使用node.to()
方法为任何Konva.Node
设置动画:
mounted() {
const textNode = this.$refs.text1.getNode();
const endX = width / 2 - textNode.width() / 2;
// run the animation
textNode.to({
x: endX,
onFinish: () => {
// update the state at the end
this.textPos.x = endX;
}
})
}