List of attribute names to account for when parsing SVG element (used by `fabric.Path.fromElement`)
解析SVG元素时要考虑的属性名称列表(由' fabric.Path.fromElement '使用)
Source:
fabric.js
,
line 19974
http://www.w3.org/TR/SVG/paths.html#PathElement
keeps the value of the last hovered corner during mouse move.
0 is no corner, or 'mt', 'ml', 'mtr' etc..
It should be private, but there is no harm in using it as
a read-only property.
保持鼠标移动时最后一个悬停角的值。
0表示没有角，或者'mt'， 'ml'， 'mtr'等。
它应该是私人的，但是把它用作
一个只读属性。
Type:
number
string
Inherited From:
fabric.Object#__corner
Default Value:
Source:
fabric.js
,
line 14868
Meaningful ONLY when the object is used as clipPath.
if true, the clipPath will have its top and left relative to canvas, and will
not be influenced by the object transform. This will make the clipPath relative
to the canvas, but clipping just a particular object.
WARNING this is beta, this feature may change or be renamed.
since 2.4.0
只有当对象用作clipPath时才有意义。
如果为true, clipPath将有它的顶部和左侧相对于画布，并将
不受对象变换的影响。这将使clipPath成为相对的
到画布上，但只是剪切一个特定的对象。
警告:这是测试版，此功能可能会更改或重新命名。
自从测试盒框
Type:
boolean
Inherited From:
fabric.Object#absolutePositioned
Default Value:
false
Source:
fabric.js
,
line 14949
Describe object's corner position in canvas object absolute coordinates
properties are tl,tr,bl,br and describe the four main corner.
each property is an object with x, y, instance of Fabric.Point.
The coordinates depends from this properties: width, height, scaleX, scaleY
skewX, skewY, angle, strokeWidth, top, left.
Those coordinates are useful to understand where an object is. They get updated
with oCoords but they do not need to be updated when zoom or panning change.
The coordinates get updated with @method setCoords.
You can calculate them without updating with @method calcACoords();
描述对象在画布对象绝对坐标中的角位置
属性是tl,tr,bl,br，并描述了四个主要角。
每个属性都是Fabric.Point的x、y、实例的对象。
坐标取决于这些属性:width, height, scaleX, scaleY
skewX, skewY，角度，strokeWidth，顶部，左边。
这些坐标对于了解物体的位置很有用。他们得到更新
与oCoords，但他们不需要更新时缩放或平移变化。
坐标通过@method setcoordinates更新。
你可以计算它们不更新@method calcACoords();
Inherited From:
fabric.Object#aCoords
Source:
fabric.js
,
line 16613
Array specifying dash pattern of an object's borders (hasBorder must be true)
指定对象边框的破折号样式的数组(hasBorder必须为true)
Type:
Array
Since:
1.6.2
Inherited From:
fabric.Object#borderDashArray
Source:
fabric.js
,
line 14521
Opacity of object's controlling borders when object is active and moving
当对象处于活动和移动状态时，对象控制边框的不透明度
Type:
Number
Inherited From:
fabric.Object#borderOpacityWhenMoving
Default Value:
Source:
fabric.js
,
line 14673
Scale factor of object's controlling borders
bigger number will make a thicker border
border is 1, so this is basically a border thickness
since there is no way to change the border itself.
物体控制边界的比例因子
数字越大，边框越厚
Border是1，这就是边框的厚度
因为没有办法改变边界本身。
Type:
Number
Inherited From:
fabric.Object#borderScaleFactor
Default Value:
Source:
fabric.js
,
line 14683
List of properties to consider when checking if cache needs refresh
Those properties are checked by statefullCache ON ( or lazy mode if we want ) or from single
calls to Object.set(key, value). If the key is in this list, the object is marked as dirty
and refreshed at the next render
检查缓存是否需要刷新时要考虑的属性列表
这些属性是通过statefullCache ON(如果我们想，也可以用lazy mode)或从single检查的
调用对象。集(关键字,值)。如果键在此列表中，则对象被标记为dirty
并在下次渲染时刷新
Type:
Array
Overrides:
fabric.Object#cacheProperties
Source:
fabric.js
,
line 14908
When true, this object will use center point as the origin of transformation
when being rotated via the controls.
Backwards incompatibility note:
This property replaces "centerTransform" (Boolean).
当为true时，该对象将使用中心点作为变换原点
当通过控制旋转时。
注意:此属性将替换“centerTransform”(布尔值)。
Type:
Boolean
Since:
1.3.4
Inherited From:
fabric.Object#centeredRotation
Default Value:
Source:
fabric.js
,
line 14570
When true, this object will use center point as the origin of transformation
when being scaled via the controls.
Backwards incompatibility note:
This property replaces "centerTransform" (Boolean).
当为true时，该对象将使用中心点作为变换原点
当通过控制进行缩放时。
注意:此属性将替换“centerTransform”(布尔值)。
Type:
Boolean
Since:
1.3.4
Inherited From:
fabric.Object#centeredScaling
Source:
fabric.js
,
line 14560
a fabricObject that, without stroke define a clipping area with their shape. filled in black
the clipPath object gets used when the object has rendered, and the context is placed in the center
of the object cacheCanvas.
If you want 0,0 of a clipPath to align with an object center, use clipPath.originX/Y to 'center'
一个fabricObject，没有描边，用它们的形状定义一个裁剪区域。填充黑色
clipPath对象在呈现对象时被使用，上下文被放置在中间
对象cachcanvas的。
如果希望clipPath的0,0与对象中心对齐，请使用clipPath。originX / Y“中心”
Type:
fabric.Object
Inherited From:
fabric.Object#clipPath
Source:
fabric.js
,
line 14928
Array specifying dash pattern of an object's control (hasBorder must be true)
指定对象控件的破折号样式的数组(hasBorder必须为true)
Type:
Array
Since:
1.6.2
Inherited From:
fabric.Object#cornerDashArray
Source:
fabric.js
,
line 14550
Color of controlling corners of an object (when it's active and transparentCorners false)
控制对象角的颜色(当它是活动的并且transparentCorners为false时)
Type:
String
Since:
1.6.2
Inherited From:
fabric.Object#cornerStrokeColor
Source:
fabric.js
,
line 14536
When set to `false`, an object can not be a target of events. All events propagate through it. Introduced in v1.3.4
当设置为' false '时，对象不能成为事件的目标。所有事件都通过它传播。介绍了v1.3.4
Type:
Boolean
Inherited From:
fabric.Object#evented
Default Value:
Source:
fabric.js
,
line 14705
Fill rule used to fill an object
accepted values are nonzero, evenodd
Backwards incompatibility note:
This property was used for setting globalCompositeOperation until v1.4.12 (use `fabric.Object#globalCompositeOperation` instead)
填充规则，用于填充对象
接受的值是非零的，甚至是奇数的
注意:此属性在v1.4.12之前被用于设置globalCompositeOperation(使用' fabric. net ')。对象# globalCompositeOperation '而不是)
Type:
String
Inherited From:
fabric.Object#fillRule
Default Value:
nonzero
Source:
fabric.js
,
line 14587
When set to `false`, object's controlling borders are not rendered
当设置为' false '时，对象的控制边界不会被渲染
Type:
Boolean
Inherited From:
fabric.Object#hasBorders
Default Value:
Source:
fabric.js
,
line 14726
When set to `false`, object's controls are not displayed and can not be used to manipulate object
当设置为' false '时，对象的控件不显示，也不能用于操作对象
Type:
Boolean
Inherited From:
fabric.Object#hasControls
Default Value:
Source:
fabric.js
,
line 14719
When `false`, default object's values are not included in its serialization
当' false '时，默认对象的值不包含在其序列化中
Type:
Boolean
Inherited From:
fabric.Object#includeDefaultValues
Default Value:
Source:
fabric.js
,
line 14740
Meaningful ONLY when the object is used as clipPath.
if true, the clipPath will make the object clip to the outside of the clipPath
since 2.4.0
只有当对象用作clipPath时才有意义。
如果为true, clipPath将使对象剪辑到clipPath的外部
自从测试盒框
Type:
boolean
Inherited From:
fabric.Object#inverted
Default Value:
false
Source:
fabric.js
,
line 14937
Left position of an object. Note that by default it's relative to object left. You can change this by setting originX={left/center/right}
物体的左侧位置。注意，默认情况下它是相对于左对象的。您可以通过设置originX={左/中/右}来改变这一点。
Type:
Number
Inherited From:
fabric.Object#left
Source:
fabric.js
,
line 14395
Describe object's corner position in canvas element coordinates.
includes padding. Used of object detection.
set and refreshed with setCoords.
在画布元素坐标中描述对象的角位置。
包括填充。用于物体检测
设置和刷新setCoords。
Inherited From:
fabric.Object#lineCoords
Source:
fabric.js
,
line 16621
When `true`, object cannot be flipped by scaling into negative values
当' true '时，对象不能通过缩放到负值来翻转
Type:
Boolean
Inherited From:
fabric.Object#lockScalingFlip
Source:
fabric.js
,
line 14796
When `true`, cache does not get updated during scaling. The picture will get blocky if scaled
too much and will be redrawn with correct details at the end of scaling.
this setting is performance and application dependant.
default to true
since 1.7.0
当' true '时，缓存在伸缩过程中不会更新。这幅画按比例放大就会变得块状
太多，会在缩放结束时用正确的细节重新绘制。
此设置取决于性能和应用程序。
默认为true
自从1.7.0
Type:
Boolean
Inherited From:
fabric.Object#noScaleCache
Default Value:
Source:
fabric.js
,
line 14837
When `true`, object is cached on an additional canvas.
When `false`, object is not cached unless necessary ( clipPath )
default to true
当' true '时，对象被缓存到额外的画布上。
当' false '时，除非必要，否则不会缓存对象(clipPath)
默认为true
Type:
Boolean
Since:
1.7.0
Inherited From:
fabric.Object#objectCaching
Default Value:
Source:
fabric.js
,
line 14814
Describe object's corner position in canvas element coordinates.
properties are depending on control keys and padding the main controls.
each property is an object with x, y and corner.
The `corner` property contains in a similar manner the 4 points of the
interactive area of the corner.
The coordinates depends from the controls positionHandler and are used
to draw and locate controls
在画布元素坐标中描述对象的角位置。
属性取决于控制键和填充主控件。
每个属性都是一个包含x、y和corner的对象。
' corner '属性以类似的方式包含
角落的互动区域。
坐标依赖于控件positionHandler并被使用
绘制和定位控件
Inherited From:
fabric.Object#oCoords
Source:
fabric.js
,
line 16599
Horizontal origin of transformation of an object (one of "left", "right", "center")
See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups
物体变换的横向原点(“左”、“右”、“中”之一)
参见http://jsfiddle.net/1ow02gea/244/了解originX/originY如何影响组中的对象
Type:
String
Inherited From:
fabric.Object#originX
Default Value:
Source:
fabric.js
,
line 14373
Vertical origin of transformation of an object (one of "top", "bottom", "center")
See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups
物体变换的垂直原点(“上”、“下”、“中心”之一)
参见http://jsfiddle.net/1ow02gea/244/了解originX/originY如何影响组中的对象
Type:
String
Inherited From:
fabric.Object#originY
Default Value:
Source:
fabric.js
,
line 14381
Determines if the fill or the stroke is drawn first (one of "fill" or "stroke")
确定是先绘制填充还是先绘制描边("fill"或"stroke"之一)
Type:
String
Inherited From:
fabric.Object#paintFirst
Default Value:
Source:
fabric.js
,
line 14875
When set to `true`, objects are "found" on canvas on per-pixel basis rather than according to bounding box
当设置为“true”时，在画布上按像素“找到”对象，而不是根据边界框
Type:
Boolean
Inherited From:
fabric.Object#perPixelTargetFind
Source:
fabric.js
,
line 14733
When set to `false`, an object can not be selected for modification (using either point-click-based or group-based selection).
But events still fire on it.
当设置为' false '时，不能选择对象进行修改(使用基于点单击的选择或基于组的选择)。
但事情还是发生了。
Type:
Boolean
Inherited From:
fabric.Object#selectable
Default Value:
Source:
fabric.js
,
line 14698
Selection Background color of an object. colored layer behind the object when it is active.
does not mix good with globalCompositeOperation methods.
选择对象的背景颜色。当对象被激活时，后面的彩色层。
不能很好地与globalCompositeOperation方法混合。
Type:
String
Inherited From:
fabric.Object#selectionBackgroundColor
Source:
fabric.js
,
line 14610
When `true`, object properties are checked for cache invalidation. In some particular
situation you may want this to be disabled ( spray brush, very big, groups)
or if your application does not allow you to modify properties for groups child you want
to disable it for groups.
default to false
since 1.7.0
当' true '时，将检查对象属性是否缓存无效。在某些特定的
你可能想要禁用的情况(喷雾刷，非常大，组)
或者如果您的应用程序不允许您修改您想要的组子的属性
为组禁用它。
缺省为false
自从1.7.0
Type:
Boolean
Inherited From:
fabric.Object#statefullCache
Default Value:
false
Source:
fabric.js
,
line 14826
List of properties to consider when checking if state
of an object is changed (fabric.Object#hasStateChanged)
as well as for history (undo/redo) purposes
检查if状态时要考虑的属性列表
对象的值被改变了(fabric.Object#hasStateChanged)
以及历史(撤消/重做)的目的
Type:
Array
Overrides:
fabric.Object#stateProperties
Source:
fabric.js
,
line 14894
When defined, an object is rendered via stroke and this property specifies its color
takes css colors https://www.w3.org/TR/css-color-3/
定义后，对象通过描边呈现，此属性指定其颜色
使用css颜色https://www.w3.org/TR/css-color-3/
Type:
String
Inherited From:
fabric.Object#stroke
Source:
fabric.js
,
line 14618
Array specifying dash pattern of an object's stroke (stroke must be defined)
指定对象笔画的虚线样式的数组(必须定义笔画)
Type:
Array
Inherited From:
fabric.Object#strokeDashArray
Source:
fabric.js
,
line 14631
Line endings style of an object's stroke (one of "butt", "round", "square")
对象笔画的线结束样式(“屁股”、“圆”、“方”之一)
Type:
String
Inherited From:
fabric.Object#strokeLineCap
Default Value:
Source:
fabric.js
,
line 14645
Corner style of an object's stroke (one of "bevel", "round", "miter")
物体笔画的角型(“斜角”、“圆角”、“斜角”之一)
Type:
String
Inherited From:
fabric.Object#strokeLineJoin
Default Value:
miter
Source:
fabric.js
,
line 14652
Maximum miter length (used for strokeLineJoin = "miter") of an object's stroke
对象笔画的最大斜接长度(用于strokeLineJoin = "miter")
Type:
Number
Inherited From:
fabric.Object#strokeMiterLimit
Default Value:
Source:
fabric.js
,
line 14659
When `false`, the stoke width will scale with the object.
When `true`, the stroke will always match the exact pixel size entered for stroke width.
this Property does not work on Text classes or drawing call that uses strokeText,fillText methods
default to false
当' false '时，斯托克宽度将随对象缩放。
当' true '时，笔画将始终匹配为笔画宽度输入的精确像素大小。
此属性不适用于使用strokeText、fillText方法的Text类或绘图调用
缺省为false
Type:
Boolean
Since:
2.6.0
Inherited From:
fabric.Object#strokeUniform
Default Value:
false
Source:
fabric.js
,
line 14850
Top position of an object. Note that by default it's relative to object top. You can change this by setting originY={top/center/bottom}
物体的顶部位置。注意，默认情况下它是相对于对象顶部的。你可以通过设置originY={top/center/bottom}来改变这一点。
Type:
Number
Inherited From:
fabric.Object#top
Source:
fabric.js
,
line 14388
Size of object's controlling corners when touch interaction is detected
检测触摸交互时物体控制角的大小
Type:
Number
Inherited From:
fabric.Object#touchCornerSize
Default Value:
Source:
fabric.js
,
line 14479
When true, object's controlling corners are rendered as transparent inside (i.e. stroke instead of fill)
当为true时，对象的控制角在内部被渲染为透明的(即描边而不是填充)
Type:
Boolean
Inherited From:
fabric.Object#transparentCorners
Default Value:
Source:
fabric.js
,
line 14486
Creates an instance of fabric.Path from an SVG
element
创建fabric的实例。SVG元素的路径
Parameters:
Attributes
Description
Creates an instance of fabric.Path from an object
创建fabric的实例。来自对象的路径
Parameters:
Attributes
Description
calculate the translation matrix for an object transform
计算物体变换的平移矩阵
Inherited From:
fabric.Object#_calcTranslateMatrix
Source:
fabric.js
,
line 17108
Prepare clipPath state and cache and draw it on instance's cache
准备clipPath状态和缓存，并在实例的缓存上绘制它
Parameters:
Description
return correct set of coordinates for intersection
this will return either aCoords or lineCoords.
返回交点的正确坐标集
这将返回aCoords或lineCoords。
Parameters:
Description
Limit the cache dimensions so that X * Y do not cross fabric.perfLimitSizeTotal
and each side do not cross fabric.cacheSideLimit
those numbers are configurable so that you can get as much detail as you want
making bargain with performances.
限制缓存尺寸，使X * Y不会交叉。perflimitsizetotal
并且每边不交叉
这些数字是可配置的，因此您可以获得尽可能多的详细信息
与演出讨价还价。
Parameters:
Description
Sets canvas globalCompositeOperation for specific object
custom composition operation for the particular object can be specified using globalCompositeOperation property
为特定对象设置画布globalCompositeOperation
可以使用globalCompositeOperation属性指定特定对象的自定义合成操作
Parameters:
Description
animate
(property, value)
→ {
fabric.Object
|fabric.AnimationContext|Array.<fabric.AnimationContext>}
Animates object's properties
的对象的属性
Parameters:
Description
animation context (or an array if passed multiple properties)
As object — multiple properties
object.animate({ left: ..., top: ... });
object.animate({ left: ..., top: ... }, { duration: ... });
As string — one property
object.animate('left', ...);
object.animate('left', { duration: ... });
fabric.AnimationContext
Array.<fabric.AnimationContext>
bringForward
(intersecting
opt
)
→ {
fabric.Object
}
Moves an object up in stack of drawn objects
在绘制对象的堆栈中向上移动对象
Parameters:
Attributes
Description
bringToFront
()
→ {
fabric.Object
}
Moves an object to the top of the stack of drawn objects
将对象移动到绘制对象堆栈的顶部
Inherited From:
fabric.Object#bringToFront
Source:
fabric.js
,
line 17278
calculate transform matrix that represents the current transformations from the
object's properties, this matrix does not include the group transformation
计算表示当前变换的变换矩阵
对象的属性，此矩阵不包括组转换
Inherited From:
fabric.Object#calcOwnMatrix
Source:
fabric.js
,
line 17152
calculate transform matrix that represents the current transformations from the
object's properties.
计算表示当前变换的变换矩阵
对象的属性。
Parameters:
Attributes
Description
return transform matrix for object not counting parent transformations
There are some situation in which this is useful to avoid the fake rotation.
返回不计算父转换的对象的转换矩阵
在某些情况下，这有助于避免假旋转。
center
()
→ {
fabric.Object
}
Centers object vertically and horizontally on canvas to which is was added last
You might need to call `setCoords` on an object after centering, to update controls area.
在最后添加的画布上垂直和水平地居中对象
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#center
Source:
fabric.js
,
line 16207
centerH
()
→ {
fabric.Object
}
Centers object horizontally on canvas to which it was added last.
You might need to call `setCoords` on an object after centering, to update controls area.
在最后添加对象的画布上水平居中。
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#centerH
Source:
fabric.js
,
line 16163
centerV
()
→ {
fabric.Object
}
Centers object vertically on canvas to which it was added last.
You might need to call `setCoords` on an object after centering, to update controls area.
将对象垂直集中在最后添加到的画布上。
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#centerV
Source:
fabric.js
,
line 16185
Clones an instance, using a callback method will work for every object.
克隆一个实例，使用回调方法将适用于每个对象。
Parameters:
Attributes
Description
cloneAsImage
(callback, options
opt
)
→ {
fabric.Object
}
Creates an instance of fabric.Image out of an object
makes use of toCanvasElement.
Once this method was based on toDataUrl and loadImage, so it also had a quality
and format option. toCanvasElement is faster and produce no loss of quality.
If you need to get a real Jpeg or Png from an object, using toDataURL is the right way to do it.
toCanvasElement and then toBlob from the obtained canvas is also a good option.
This method is sync now, but still support the callback because we did not want to break.
When fabricJS 5.0 will be planned, this will probably be changed to not have a callback.
创建fabric的实例。从对象中提取图像
使用toCanvasElement。
一旦这个方法是基于toDataUrl和loadImage，那么它也有一个质量
和格式的选择。toCanvasElement更快，而且不会产生质量损失。
如果需要从对象中获取真正的Jpeg或Png，使用toDataURL是正确的方法。
toCanvasElement和toBlob从获得的画布也是一个很好的选择。
这个方法现在是同步的，但仍然支持回调，因为我们不想中断。
在计划fabricJS 5.0时，这可能会更改为没有回调。
Parameters:
Attributes
Description
Checks if point is inside the object
检查点是否在对象内部
Parameters:
Attributes
Description
drawBorders
(ctx, styleOverride)
→ {
fabric.Object
}
Draws borders of an object's bounding box.
Requires public properties: width, height
Requires public options: padding, borderColor
绘制对象的边框。
需要公共属性:宽度，高度
需要公共选项:padding, borderColor
Parameters:
Description
drawBordersInGroup
(ctx, options, styleOverride)
→ {
fabric.Object
}
Draws borders of an object's bounding box when it is inside a group.
Requires public properties: width, height
Requires public options: padding, borderColor
当对象位于组内时，绘制其边界框的边框。
需要公共属性:宽度，高度
需要公共选项:padding, borderColor
Parameters:
Description
drawControls
(ctx, styleOverride)
→ {
fabric.Object
}
Draws corners of an object's bounding box.
Requires public properties: width, height
Requires public options: cornerSize, padding
绘制对象的边界框的角。
需要公共属性:宽度，高度
需要公共选项:角尺寸，填充
Parameters:
Description
drawSelectionBackground
(ctx)
→ {
fabric.Object
}
Draws a colored layer behind the object, inside its selection borders.
Requires public options: padding, selectionBackgroundColor
this function is called when the context is transformed
has checks to be skipped when the object is on a staticCanvas
在对象后面的选择边框内绘制一个彩色图层。
需要公共选项:padding, selectionBackgroundColor
在转换上下文时调用此函数
当对象在staticCanvas上时，是否要跳过检查
Parameters:
Description
Calls a function for each control. The function gets called,
with the control, the object that is calling the iterator and the control's key
为每个控件调用函数。函数被调用，
对于控件，调用迭代器的对象和控件的键
Parameters:
Description
fxStraighten
(callbacks)
→ {
fabric.Object
}
Same as fabric.Object.prototype.straighten but with animation
和fabric. object .prototype.straight一样，但是带有动画
Parameters:
Description
Returns coordinates of object's bounding rectangle (left, top, width, height)
the box is intended as aligned to axis of canvas.
返回对象的边界矩形(左，上，宽，高)的坐标
盒子要与画布轴对齐。
Parameters:
Attributes
Description
return correct set of coordinates for intersection
this will return either aCoords or lineCoords.
The coords are returned in an array.
返回交点的正确坐标集
这将返回aCoords或lineCoords。
这些坐标以数组的形式返回。
Inherited From:
fabric.Object#getCoords
Source:
fabric.js
,
line 16661
Returns coordinates of a pointer relative to an object
返回指针相对于对象的坐标
Parameters:
Attributes
Description
Return the object scale factor counting also the group scaling
返回对象缩放因子计数和组缩放
Inherited From:
fabric.Object#getObjectScaling
Source:
fabric.js
,
line 15242
getPointByOrigin
(originX, originY)
→ {
fabric.Point
}
Returns the coordinates of the object as if it has a different origin
返回对象的坐标，就好像它有不同的原点一样
Parameters:
Description
Returns height of an object bounding box counting transformations
before 2.0 it was named getHeight();
返回对象边界框计数转换的高度
在2.0之前，它被命名为getHeight();
Inherited From:
fabric.Object#getScaledHeight
Source:
fabric.js
,
line 16939
Returns width of an object's bounding box counting transformations
before 2.0 it was named getWidth();
返回对象的边界框计数转换的宽度
在2.0之前，它被命名为getWidth();
Inherited From:
fabric.Object#getScaledWidth
Source:
fabric.js
,
line 16930
Return the object scale factor counting also the group scaling, zoom and retina
返回对象缩放因子计数，还包括组缩放、缩放和视网膜
Inherited From:
fabric.Object#getTotalObjectScaling
Source:
fabric.js
,
line 15262
Retrieves viewportTransform from Object's canvas if possible
如果可能的话，从对象的画布中检索viewportTransform
Inherited From:
fabric.Object#getViewportTransform
Source:
fabric.js
,
line 15338
return true if the object will draw a fill
Does not consider text styles. This is just a shortcut used at rendering time
We want it to be an approximation and be fast.
wrote to avoid extra caching, it has to return true when fill happens,
can guess when it will not happen at 100% chance, does not matter if it misses
some use case where the fill is invisible.
如果对象将绘制填充，则返回true
不考虑文本样式。这只是在渲染时使用的一个快捷方式
我们希望它是一个近似值，而且要快。
为了避免额外的缓存，它必须在填充发生时返回true，
能猜出它什么时候不会发生的几率是100%吗，错过了也没关系吗
在一些用例中填充是不可见的。
Since:
3.0.0
Inherited From:
fabric.Object#hasFill
Source:
fabric.js
,
line 15441
Returns true if object state (one of its state properties) was changed
如果对象状态(它的一个状态属性)被更改，则返回true
Parameters:
Attributes
Description
return true if the object will draw a stroke
Does not consider text styles. This is just a shortcut used at rendering time
We want it to be an approximation and be fast.
wrote to avoid extra caching, it has to return true when stroke happens,
can guess when it will not happen at 100% chance, does not matter if it misses
some use case where the stroke is invisible.
如果对象将绘制笔画，则返回true
不考虑文本样式。这只是在渲染时使用的一个快捷方式
我们希望它是一个近似值，而且要快。
为了避免额外的缓存，它必须在stroke发生时返回true，
能猜出它什么时候不会发生的几率是100%吗，错过了也没关系吗
在一些用例中，笔画是不可见的。
Since:
3.0.0
Inherited From:
fabric.Object#hasStroke
Source:
fabric.js
,
line 15427
Checks if object intersects with another object
检查对象是否与另一个对象相交
Parameters:
Attributes
Description
Checks if object intersects with an area formed by 2 points
检查物体是否与2点组成的区域相交
Parameters:
Attributes
Description
Checks if object is fully contained within area of another object
检查对象是否完全包含在另一个对象的区域内
Parameters:
Attributes
Description
Checks if object is fully contained within area formed by 2 points
检查对象是否完全包含在由2点组成的区域内
Parameters:
Attributes
Description
Returns true if the specified control is visible, false otherwise.
如果指定的控件是可见的则返回true，否则返回false。
Parameters:
Description
Checks if object is contained within the canvas with current viewportTransform
the check is done stopping at first point that appears on screen
使用当前viewportTransform检查对象是否包含在画布中
检查在屏幕上出现的第一个点停止
Parameters:
Attributes
Description
Checks if object is partially contained within the canvas with current viewportTransform
使用当前viewportTransform检查对象是否部分包含在画布中
Parameters:
Attributes
Description
Returns true if specified type is identical to the type of an instance
如果指定的类型与实例的类型相同，则返回true
Parameters:
Description
moveTo
(index)
→ {
fabric.Object
}
Moves an object to specified level in stack of drawn objects
将对象移动到绘制对象堆栈中的指定级别
Parameters:
Description
When set to `true`, force the object to have its own cache, even if it is inside a group
it may be needed when your object behave in a particular way on the cache and always needs
its own isolated canvas to render correctly.
Created to be overridden
since 1.7.12
当设置为' true '时，强制对象拥有自己的缓存，即使它在组中
当你的对象在缓存上以一种特定的方式运行时，可能需要它，并且总是需要它
它自己的独立画布来正确渲染。
创建以被覆盖
自从1.7.12
Inherited From:
fabric.Object#needsItsOwnCache
Source:
fabric.js
,
line 15453
This callback function is called every time _discardActiveObject or _setActiveObject
try to to deselect this object. If the function returns true, the process is cancelled
这个回调函数在每次_discardActiveObject或_setActiveObject时被调用
尝试取消选择此对象。如果函数返回true，则取消进程
Parameters:
Attributes
Description
This callback function is called every time _discardActiveObject or _setActiveObject
try to to select this object. If the function returns true, the process is cancelled
这个回调函数在每次_discardActiveObject或_setActiveObject时被调用
尝试选择此对象。如果函数返回true，则取消进程
Parameters:
Attributes
Description
scaleToHeight
(value, absolute)
→ {
fabric.Object
}
Scales an object to a given height, with respect to bounding box (scaling by x/y equally)
根据边界框将对象缩放到给定的高度(相等地按x/y缩放)
Parameters:
Description
scaleToWidth
(value, absolute)
→ {
fabric.Object
}
Scales an object to a given width, with respect to bounding box (scaling by x/y equally)
根据边框将对象缩放到给定的宽度(相等地按x/y缩放)
Parameters:
Description
sendBackwards
(intersecting
opt
)
→ {
fabric.Object
}
Moves an object down in stack of drawn objects
在绘制对象的堆栈中向下移动对象
Parameters:
Attributes
Description
sendToBack
()
→ {
fabric.Object
}
Moves an object to the bottom of the stack of drawn objects
将对象移动到绘制对象堆栈的底部
Inherited From:
fabric.Object#sendToBack
Source:
fabric.js
,
line 17263
setControlsVisibility
(options
opt
)
→ {
fabric.Object
}
Sets the visibility state of object controls.
设置对象控件的可见性状态。
Parameters:
Attributes
Description
setControlVisible
(controlKey, visible)
→ {
fabric.Object
}
Sets the visibility of the specified control.
设置指定控件的可见性。
Parameters:
Description
setCoords
(skipCorners
opt
)
→ {
fabric.Object
}
Sets corner and controls position coordinates based on current angle, width and height, left and top.
oCoords are used to find the corners
aCoords are used to quickly find an object on the canvas
lineCoords are used to quickly find object during pointer events.
See
https://github.com/fabricjs/fabric.js/wiki/When-to-call-setCoords
and
http://fabricjs.com/fabric-gotchas
设置角并基于当前角度、宽度和高度、左侧和顶部控制位置坐标。
oCoords是用来找到角落的
aCoords用于在画布上快速查找对象
lineCoords用于在指针事件期间快速查找对象。
参见https://github.com/fabricjs/fabric.js/wiki/When-to-call-setCoords和http://fabricjs.com/fabric-gotchas
Parameters:
Attributes
Description
This callback function is called by the parent group of an object every
time a non-delegated property changes on the group. It is passed the key
and value as parameters. Not adding in this function's signature to avoid
Travis build error about unused variables.
这个回调函数由对象的父组调用
更改组上的非委托属性的时间。它被传递了密钥
值作为参数。没有添加此函数的签名以避免
关于未使用变量的Travis构建错误。
Inherited From:
fabric.Object#setOnGroup
Source:
fabric.js
,
line 15334
Sets the position of the object taking into consideration the object's origin
考虑到对象的原点，设置对象的位置
Parameters:
Description
Decide if the object should cache or not. Create its own cache level
objectCaching is a global flag, wins over everything
needsItsOwnCache should be used when the object drawing method requires
a cache step. None of the fabric classes requires it.
Generally you do not cache objects in groups because the group outside is cached.
Read as: cache if is needed, or if the feature is enabled but we are not already caching.
决定对象是否应该缓存。创建自己的缓存级别
objectCaching是一个全局标志，胜过一切
当对象绘图方法需要时，应该使用needsitsonncache
缓存的一步。没有任何fabric类需要它。
通常不将对象缓存到组中，因为会缓存外部的组。
读取为:如果需要缓存，或者如果启用了该特性但我们还没有缓存。
Inherited From:
fabric.Object#shouldCache
Source:
fabric.js
,
line 15473
straighten
()
→ {
fabric.Object
}
Straightens an object (rotating it from current angle to one of 0, 90, 180, 270, etc. depending on which is closer)
将对象拉直(将其从当前角度旋转到0、90、180、270等，取决于哪个更接近)
Inherited From:
fabric.Object#straighten
Source:
fabric.js
,
line 21525
Converts an object into a HTMLCanvas element
将对象转换为HTMLCanvas元素
Parameters:
Description
Returns svg clipPath representation of an instance
返回实例的svg clipPath表示
Parameters:
Attributes
Description
Returns dataless object representation of an instance
返回实例的无数据对象表示
Parameters:
Attributes
Description
toLocalPoint
(point, originX, originY)
→ {
fabric.Point
}
Returns the point in local coordinates
返回局部坐标中的点
Parameters:
Description
Returns object representation of an instance
返回实例的对象表示
Parameters:
Attributes
Description
translateToCenterPoint
(point, originX, originY)
→ {
fabric.Point
}
Translates the coordinates from origin to center coordinates (based on the object's dimensions)
将坐标从原点坐标转换为中心坐标(基于对象的尺寸)
Parameters:
Description
translateToGivenOrigin
(point, fromOriginX, fromOriginY, toOriginX, toOriginY)
→ {
fabric.Point
}
Translates the coordinates from a set of origin to another (based on the object's dimensions)
将坐标从一组原点转换为另一组原点(基于对象的维度)
Parameters:
Description
translateToOriginPoint
(center, originX, originY)
→ {
fabric.Point
}
Translates the coordinates from center to origin coordinates (based on the object's dimensions)
将坐标从中心坐标转换为原点坐标(基于对象的尺寸)
Parameters:
Description
viewportCenter
()
→ {
fabric.Object
}
Centers object on current viewport of canvas to which it was added last.
You might need to call `setCoords` on an object after centering, to update controls area.
将对象集中在它最后添加到的画布的当前视图中。
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#viewportCenter
Source:
fabric.js
,
line 16218
viewportCenterH
()
→ {
fabric.Object
}
Centers object horizontally on current viewport of canvas to which it was added last.
You might need to call `setCoords` on an object after centering, to update controls area.
将对象水平地居中于它最后添加到的画布的当前视图中。
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#viewportCenterH
Source:
fabric.js
,
line 16174
viewportCenterV
()
→ {
fabric.Object
}
Centers object vertically on current viewport of canvas to which it was added last.
You might need to call `setCoords` on an object after centering, to update controls area.
将对象垂直集中在它最后添加到的画布的当前视图中。
你可能需要在定心后对对象调用setCoords来更新控件区域。
Inherited From:
fabric.Object#viewportCenterV
Source:
fabric.js
,
line 16196
Check if this object or a child object will cast a shadow
used by Group.shouldCache to know if child has a shadow recursively
检查此对象或子对象是否会投下阴影
所使用的组。shouldCache可以递归地知道child是否有影子
Inherited From:
fabric.Object#willDrawShadow
Source:
fabric.js
,
line 15486
