Question

我的圈子的动画css有点问题。

在我点击的地方，动画的中心显示不正确。

翻译（-50％， - 50％）仅在动画之后有效。

以下是演示：https://plnkr.co/edit/0UMwaZgBmiXWlU61EE2m

你知道如何处理这个问题吗？

var vm = new Vue({
    el:  "#filter-realisations",
    data: {
        realisations: [
            { name: "ASM", platform: "iOS", secteur: "grandPublic", secteur: "grandPublic", device:"Watch" },
            { name: "Biodiversea", platform: "Android", secteur: "marchesPublics", device:"Tablet" },
            { name: "CDBB", platform: "iOS", secteur: "grandPublic", device:"Smartphone" },
            { name: "Centre France", platform: "iOS", secteur: "grandPublic", device:"Watch" },
            { name: "Clermont", platform: "Android", secteur: "grandPublic", device:"Tablet" },
            { name: "Dassault", platform: "iOS", secteur: "metier", device:"Smartphone"},
            { name: "Journal", platform: "iOS", secteur: "metier", device:"Smartphone" },
            { name: "Somfy", platform: "Android", secteur: "metier", device:"Smartphone" },
            { name: "Sortir.vosges", platform: "Android", secteur: "metier", device:"Smartphone" },
      { name: "Sud Radio", platform: "Android", secteur: "metier", device:"Smartphone" },
      { name: "Verifrom", platform: "Android", secteur: "metier", device:"Smartphone" },
      { name: "Sports", platform: "iOS", secteur: "marchesPublics", device:"Watch" }

        ],
        selectedSecteur : "AllSecteur",
        selectedPlatform: "AllPlatform",
        selectedDevice : "AllDevice"
    },
    computed: {
        filteredRealisations: function() {
            var vm = this;
            var platform = vm.selectedPlatform;
            var secteur = vm.selectedSecteur;
            var device = vm.selectedDevice;



            if(platform === "AllPlatform") {
                return vm.realisations;
            } else {
                return vm.realisations.filter(function(app) {
                    return app.platform === platform;
                });
            }

            if(secteur === "AllSecteur") {
                return vm.realisations;
            } else {
                return vm.realisations.filter(function(app) {
                    return app.secteur === secteur;
                });
            }

            if(device === "AllDevice") {
                return vm.realisations;
            } else {
                return vm.realisations.filter(function(app) {
                    return app.device === device;
                });
            }

        }
    }
});

// Code goes here

function printMousePos(event) {
  var element = document.getElementById("body");
  var para1 = document.createElement("div");
  para1.className = "circle";
  para1.setAttribute("style", "position : absolute;left:" + event.clientX + "px;top:" + event.clientY + "px");
  element.appendChild(para1);
  var para2 = document.createElement("div");
  para2.className = "point";
  para2.setAttribute("style", "position : absolute;left:" + event.clientX + "px;top:" + event.clientY + "px");

  element.appendChild(para2);
  console.log(event.clientX, event.clientY);
}

document.addEventListener("click", printMousePos);

/* Styles go here */

body {
  position: relative;
  height: 1000px;
}

@keyframes circle {
  from {
    transform: scale(0, 0)
  }
  to {
    transform: scale(2, 2)
  }
}

.circle {
  color: blue;
  width: 200px;
  height: 200px;
  border-style: solid;
  border-width: 20px;
  border-color: blue;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation-name: circle;
  animation-duration: 1s;
  animation-iteration-count: 3;
  /*transform-origin: 0 0;*/
}

.point {
  color: red;
  border-style: solid;
  border-width: 5px;
  border-color: red;
  border-radius: 50%;
}

谢谢！

Answer 1

您的关键帧标注应如下所示：

@keyframes circle {
  from {
    transform: scale(0,0) translate(-50%, -50%);
  }
  to {
    transform: scale(2,2) translate(-50%, -50%);
  }
}

Answer 2

要开始以红点为中心的外部蓝色圆圈动画，您需要将原点转换为其中心。每次使用关键帧动画时，当您使用transform: scale(0,0);或transform: scale(2,2);时，中心会再次转换为默认的上角。

要解决此更改这些部分

.circle {
      transform-origin: center;
}

和

 @keyframes circle {
    from {
        transform: translate(-50%, -50%) scale(0,0);
    }
    to {
        transform: translate(-50%, -50%) scale(2,2);
    }
}

希望这能解决你的问题。

圆形动画不以中心为中心

2 个答案: