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在分析了我的情況，這似乎是另外一個問題/另一種情況下，更一般約保存到JSON。
所以，我添加了一個新的Shapegroup到層上我的舞臺用下面的代碼：
...
var selectedShape, json = null;
...
function addNode(xPos, yPos)
{
//create the new node
var node = new Kinetic.Circle({
id: 'myRect',
x: xPos,
y: yPos,
radius: 30,
fill: '#FFFFFF',
stroke: '#000000',
strokeWidth: 4,
// test: "testattr"
});
// create the label
var label = new Kinetic.Text({
x: node.getX() - node.getRadius() + 10,
y: node.getY() + node.getRadius() + 4,
text: 'node',
fontSize: 12,
fontFamily: 'Arial',
fill: 'black',
});
// create group
var nodeGroup = new Kinetic.Group({
draggable: true
});
// add shapes to group
nodeGroup.add(node);
nodeGroup.add(label);
// add group to the layer
layer.add(nodeGroup);
// add layer to the stage
stage.add(layer);
/*
* Events for Nodes
* all events for the actual states/nodes
*/
// mouse over => red stroke
node.on('mouseover', function() {
$('body').css('cursor', 'pointer');
this.setStroke('red');
layer.draw();
});
// mouse out => back in black
node.on('mouseout', function() {
if(selectedShape != this){
console.log('mouseout fired, Position: ' + node.getX());
$('body').css('cursor', 'default');
this.setStroke('#000000');
writeMessage(messageLayer, node.getX()); // just for testing purposes
layer.draw();
}
});
node.on('click tap', function(){ //relevant
if(selectedShape != null){
$('body').css('cursor', 'default');
selectedShape.setStroke('#000000');
layer.draw();
}
selectedShape = null;
console.log('clicked');
selectedShape = this;
this.setStroke('red');
layer.draw();
});
/*
* Events for Node-labels
* events for labels
*/
label.on('mouseover', function() {
$('body').css('cursor', 'text');
this.setStroke('red');
this.setStrokeWidth(0.5)
layer.draw();
});
label.on('mouseout', function() {
$('body').css('cursor', 'default');
this.setStroke('');
this.setStrokeWidth(0);
layer.draw();
});
//change the Label of a node, return 'node' if nothing entered or cancelled.
label.on('click', function(){
var lblTxt = prompt('Neue Bezeichnung:', '');
if (lblTxt) {
this.setText(lblTxt);
} else {
this.setText('node');
}
layer.draw();
});
}
有一個按鈕「添加新的國家」，這實際上增加了一個新的組。 代碼：
$('#createNode').click(function(e){
addNode(125, 125);
});
和一個按鈕「刪除狀態」刪除選中的節點組。 代碼：
$('#removeNode').click(function(e){
if(selectedShape){
var selectedGroup = selectedShape.getParent();
selectedGroup.removeChildren();
selectedGroup.remove();
layer.draw();
} else {
writeMessage(messageLayer, 'No Object chosen');
}
});
此外，還有「保存到JSON」按鈕，我想救我的舞臺上所有的實際殘留形狀。 代碼：
$('#saveJSON').click(function(e){
json = null;
json = stage.toJSON();
console.log(json);
});
所以，現在我測試了以下情況：
案例1：保存空蕩蕩的舞臺
JSON輸出：
{
"attrs": {
"width": 960,
"height": 600
},
"className": "Stage",
"children": [
{
"attrs": {},
"className": "Layer",
"children": []
}
]
}
狀態：似乎沒問題。 所以，上一個}的格式問題取決於stackoverflow，它應該（而且）實際上被包含到代碼標記中。
案例2：保存空舞臺（雙擊/輕敲或使用按鈕就在這裏沒有區別）後添加一個節點。再次保存。
JSON輸出：
{
"attrs": {
"width": 960,
"height": 600
},
"className": "Stage",
"children": [
{
"attrs": {},
"className": "Layer",
"children": []
},
{
"attrs": {},
"className": "Layer",
"children": [
{
"attrs": {
"draggable": true
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "#000000",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
}
]
}
]
}
狀態：爲什麼會有一個空層？但是：一組，兩個對象似乎沒問題。
案例3
將另一個節點。保存。
JSON輸出：
{
"attrs": {
"width": 960,
"height": 600
},
"className": "Stage",
"children": [
{
"attrs": {},
"className": "Layer",
"children": []
},
{
"attrs": {},
"className": "Layer",
"children": [
{
"attrs": {
"draggable": true
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "#000000",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
},
{
"attrs": {
"draggable": true,
"x": 206,
"y": 75,
"rotation": 0,
"scaleX": 1,
"scaleY": 1,
"offsetX": 0,
"offsetY": 0,
"skewX": 0,
"skewY": 0
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "red",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
}
]
},
{
"attrs": {},
"className": "Layer",
"children": [
{
"attrs": {
"draggable": true
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "#000000",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
},
{
"attrs": {
"draggable": true,
"x": 206,
"y": 75,
"rotation": 0,
"scaleX": 1,
"scaleY": 1,
"offsetX": 0,
"offsetY": 0,
"skewX": 0,
"skewY": 0
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "red",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
}
]
}
]
}
狀態：在這裏你可以看到我的問題第一次出現：所有關於我的舞臺對象被加倍在我的JSON文件放在兩個不同的層。所以當添加更多的對象時，它們會變成三倍等等。我的問題：我想添加數據模型並將數據與數據庫一起使用，所以我認爲這非常混亂，但我不知道我出錯的地方。
**殼體4 ** 卸下從我的階段所有而不是一個節點：
JSON輸出：
{
"attrs": {
"width": 960,
"height": 600
},
"className": "Stage",
"children": [
{
"attrs": {},
"className": "Layer",
"children": []
},
{
"attrs": {},
"className": "Layer",
"children": [
{
"attrs": {
"draggable": true
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "#000000",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
}
]
},
{
"attrs": {},
"className": "Layer",
"children": [
{
"attrs": {
"draggable": true
},
"className": "Group",
"children": [
{
"attrs": {
"id": "myRect",
"x": 125,
"y": 125,
"radius": 30,
"fill": "#FFFFFF",
"stroke": "#000000",
"strokeWidth": 4,
"test": "testattr"
},
"className": "Circle"
},
{
"attrs": {
"width": "auto",
"height": "auto",
"x": 105,
"y": 159,
"text": "node",
"fontSize": 12,
"fontFamily": "Arial",
"fill": "black"
},
"className": "Text"
}
]
}
]
}
]
}
狀態：同樣，其餘節點被加倍。
**殼體5 **：刪除所有節點，具有一個空的階段再次
JSON輸出（添加2個節點，然後去除它們後）：
{
"attrs": {
"width": 960,
"height": 600
},
"className": "Stage",
"children": [
{
"attrs": {},
"className": "Layer",
"children": []
},
{
"attrs": {},
"className": "Layer",
"children": []
},
{
"attrs": {},
"className": "Layer",
"children": []
}
]
}
狀態：舞臺是空的，但層仍然存在。不是那麼好。
結論：我覺得我做得非常不對的。這是在這個問題上有很多JSON的，我希望有人居然通過這個閱讀並可以幫我找出我做錯了什麼。會很棒。
此致 多米尼克
另一個編輯 問題在addnode的功能似乎對我來說，使用stage.add（層）;添加新的形狀組。一種不同的方式來新組添加到一個層，將不勝感激，因爲我是相當新的kineticjs，不知道它。
你可以包括在問題的toJSON串並顯示究竟是什麼發生的事情 – Ani
是的，我將修改它。 – Dominik
@Ani剛編輯我的整個問題，因爲它通常沒有什麼與我的刪除機制我現在希望它變得更爲清楚，雖然現在有很多的JSON） – Dominik