このチュートリアルを使用して、ドラッグ可能なポリゴンを構築していました。チュートリアル
テキストを追加したいので、kinetic-v3.10.0.js から新しいものに更新しようとしました。しかし、更新後、言及されたエラーメッセージが常に表示されます。
誰かが私のコードを見て、何を変更する必要があるか教えてください。
ここに私のコードの一部があります:
アンカーを構築
function buildAnchor(layer, x, y, name) {
var anchor = new Kinetic.Circle({
x: x,
y: y,
radius: 12,
stroke: 'red',
fill: '#ddd',
strokeWidth: 4,
draggable: true,
name : name
});
// add hover styling
anchor.on('mouseover', function() {
document.body.style.cursor = 'pointer';
this.setStrokeWidth(6);
layer.draw();
});
anchor.on('mouseout', function() {
document.body.style.cursor = 'default';
this.setStrokeWidth(4);
layer.draw();
});
layer.add(anchor);
return anchor;}
ビルドライン:
function buildLine(layer, x1, y1, x2, y2, name) {
var line = new Kinetic.Line({
points: [x1, y1, x2, y2],
stroke : '#000',
strokeWidth : 2,
name : name
});
var xDiff = x1 - x2;
var yDiff = y1 - y2;
var text = new Kinetic.Text({
x: 0,
y: 0,
text: 'Test',
fontSize: 20,
fontFamily: 'Calibri',
fill: 'green'
});
if (xDiff < 0 && yDiff == 0) {
line.move(0,-30); //Point a -> b
}
else if (xDiff == 0 && yDiff < 0) {
line.move(30,0); //Point b -> c
}
else if (xDiff > 0 && yDiff == 0) {
line.move(0,30); //Point c -> d
}
else if (xDiff == 0 && yDiff > 0) {
line.move(-30,0); //Point d -> a
}
else if (xDiff < 0 && yDiff < 0) {
line.move(0,-30);
}
else if (xDiff < 0 && yDiff > 0) {
line.move(0,-30);
}
else if (xDiff > 0 && yDiff > 0) {
line.move(-5,30);
}
layer.add(text);
layer.add(line);
return line;
return text;}
三角形を構築:
function buildTriangle(layer, points, name) {
var triangle = new Kinetic.Polygon({
stroke : '#666',
strokeWidth : 8,
name : name
});
triangle.scaleAnchor = function(anchor, factor) {
anchor.attrs.x = ( anchor.attrs.x - this.center.x ) * factor + this.center.x;
anchor.attrs.y = ( anchor.attrs.y - this.center.y ) * factor + this.center.y;
};
triangle.calculateCenter = function() {
this.center.x = ( this.a.attrs.x + this.b.attrs.x + this.c.attrs.x ) / 3;
this.center.y = ( this.a.attrs.y + this.b.attrs.y + this.c.attrs.y ) / 3;
};
triangle.a = buildAnchor(layer, points[0], points[1], 'anchor');
triangle.b = buildAnchor(layer, points[2], points[3], 'anchor');
triangle.c = buildAnchor(layer, points[4], points[5], 'anchor');
line1 = buildLine(layer, points[0], points[1], points[2], points[3], 'line');
line2 = buildLine(layer, points[2], points[3], points[4], points[5], 'line');
line3 = buildLine(layer, points[4], points[5], points[0], points[1], 'line');
triangle.was = { x : 0, y : 0 };
triangle.center = { x : 0, y : 0 };
layer.add(triangle);
return triangle;}
三角形を描く:
function drawtriangle() {
var triangle = this.get('.triangle')[0];
triangle.setPoints([ triangle.a.attrs.x - triangle.was.x,
triangle.a.attrs.y - triangle.was.y,
triangle.b.attrs.x - triangle.was.x,
triangle.b.attrs.y - triangle.was.y,
triangle.c.attrs.x - triangle.was.x,
triangle.c.attrs.y - triangle.was.y ]);
line1.setPoints([triangle.a.attrs.x - triangle.was.x, triangle.a.attrs.y - triangle.was.y, triangle.b.attrs.x - triangle.was.x, triangle.b.attrs.y - triangle.was.y]);
line2.setPoints([triangle.b.attrs.x - triangle.was.x, triangle.b.attrs.y - triangle.was.y, triangle.c.attrs.x - triangle.was.x, triangle.c.attrs.y - triangle.was.y]);
line3.setPoints([triangle.c.attrs.x - triangle.was.x, triangle.c.attrs.y - triangle.was.y, triangle.a.attrs.x - triangle.was.x, triangle.a.attrs.y - triangle.was.y]);
triangle.calculateCenter.apply(triangle);}