Documentation
¶
Overview ¶
Package buffer contain buffers used with charts.
Index ¶
- type Float64PointScaleBuffer
- func (b *Float64PointScaleBuffer) At(i int) canvas.Float64Point
- func (b *Float64PointScaleBuffer) AtRaw(i int) canvas.Float64Point
- func (b *Float64PointScaleBuffer) Clear()
- func (b *Float64PointScaleBuffer) Length() int
- func (b *Float64PointScaleBuffer) Offset() canvas.Float64Point
- func (b *Float64PointScaleBuffer) Pop()
- func (b *Float64PointScaleBuffer) Push(p canvas.Float64Point)
- func (b *Float64PointScaleBuffer) ReadAll() []canvas.Float64Point
- func (b *Float64PointScaleBuffer) ReadAllRaw() []canvas.Float64Point
- func (b *Float64PointScaleBuffer) Scale() canvas.Float64Point
- func (b *Float64PointScaleBuffer) SetData(d []canvas.Float64Point)
- func (b *Float64PointScaleBuffer) SetOffset(o canvas.Float64Point)
- func (b *Float64PointScaleBuffer) SetScale(sc canvas.Float64Point)
- type Float64ScaleBuffer
- func (b *Float64ScaleBuffer) At(i int) float64
- func (b *Float64ScaleBuffer) AtRaw(i int) float64
- func (b *Float64ScaleBuffer) Clear()
- func (b *Float64ScaleBuffer) Length() int
- func (b *Float64ScaleBuffer) Offset() float64
- func (b *Float64ScaleBuffer) Pop()
- func (b *Float64ScaleBuffer) Push(p float64)
- func (b *Float64ScaleBuffer) ReadAll() []float64
- func (b *Float64ScaleBuffer) ReadAllRaw() []float64
- func (b *Float64ScaleBuffer) Scale() float64
- func (b *Float64ScaleBuffer) SetData(d []float64)
- func (b *Float64ScaleBuffer) SetOffset(o float64)
- func (b *Float64ScaleBuffer) SetScale(sc float64)
- type Float64ScaleRingBuffer
- func (b *Float64ScaleRingBuffer) Clear()
- func (b *Float64ScaleRingBuffer) Length() int
- func (b *Float64ScaleRingBuffer) Offset() float64
- func (b *Float64ScaleRingBuffer) Pop()
- func (b *Float64ScaleRingBuffer) Push(f float64)
- func (b *Float64ScaleRingBuffer) ReadAll() []float64
- func (b *Float64ScaleRingBuffer) ReadAllRaw() []float64
- func (b *Float64ScaleRingBuffer) Scale() float64
- func (b *Float64ScaleRingBuffer) SetOffset(o float64)
- func (b *Float64ScaleRingBuffer) SetScale(sc float64)
- func (b *Float64ScaleRingBuffer) Size() int
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Float64PointScaleBuffer ¶
type Float64PointScaleBuffer struct {
// contains filtered or unexported fields
}
Float64PointScaleBuffer is a variable size buffer that stores Float64Points and a scaled version of the Float64Points. Scaling is done by multiplying incoming values (X,Y) coordinates by a constant scale factor.
func NewFloat64PointScaleBuffer ¶
func NewFloat64PointScaleBuffer(o, sc canvas.Float64Point) *Float64PointScaleBuffer
NewFloat64PointScaleBuffer returns *Float64PointScaleBuffer initialized to default settings.
func (*Float64PointScaleBuffer) At ¶
func (b *Float64PointScaleBuffer) At(i int) canvas.Float64Point
At returns Float64Point of scaled data at index i of buffer.
func (*Float64PointScaleBuffer) AtRaw ¶
func (b *Float64PointScaleBuffer) AtRaw(i int) canvas.Float64Point
AtRaw returns Float64Point of original data at index i of buffer.
func (*Float64PointScaleBuffer) Clear ¶
func (b *Float64PointScaleBuffer) Clear()
Clear resets buffer contents.
func (*Float64PointScaleBuffer) Length ¶
func (b *Float64PointScaleBuffer) Length() int
Length returns number of data in buffer.
func (*Float64PointScaleBuffer) Offset ¶
func (b *Float64PointScaleBuffer) Offset() canvas.Float64Point
Offset returns Float64Point used to subtract data points from.
func (*Float64PointScaleBuffer) Pop ¶
func (b *Float64PointScaleBuffer) Pop()
Pop erases the oldest Float64Point from the buffer.
func (*Float64PointScaleBuffer) Push ¶
func (b *Float64PointScaleBuffer) Push(p canvas.Float64Point)
Push adds Float64Point data to the back of the buffer.
func (*Float64PointScaleBuffer) ReadAll ¶
func (b *Float64PointScaleBuffer) ReadAll() []canvas.Float64Point
ReadAll returns entire scaled data buffer.
func (*Float64PointScaleBuffer) ReadAllRaw ¶
func (b *Float64PointScaleBuffer) ReadAllRaw() []canvas.Float64Point
ReadAllRaw returns entire original data buffer.
func (*Float64PointScaleBuffer) Scale ¶
func (b *Float64PointScaleBuffer) Scale() canvas.Float64Point
Scale returns Float64Point used to multiple data points by.
func (*Float64PointScaleBuffer) SetData ¶
func (b *Float64PointScaleBuffer) SetData(d []canvas.Float64Point)
SetData sets contents of internal buffer to given []float64 and scales the data.
func (*Float64PointScaleBuffer) SetOffset ¶
func (b *Float64PointScaleBuffer) SetOffset(o canvas.Float64Point)
SetOffset updates offsets and recomputes all scaled data.
func (*Float64PointScaleBuffer) SetScale ¶
func (b *Float64PointScaleBuffer) SetScale(sc canvas.Float64Point)
SetScale updates scaling factor and recomputes all scaled data.
type Float64ScaleBuffer ¶
type Float64ScaleBuffer struct {
// contains filtered or unexported fields
}
Float64ScaleBuffer is a variable size buffer that stores float64 data values and a scaled version of the data. Scaling is done by multiplying incoming values by a constant scale factor.
func NewFloat64ScaleBuffer ¶
func NewFloat64ScaleBuffer(o, sc float64) *Float64ScaleBuffer
NewFloat64ScaleBuffer returns *Float64ScaleBuffer initialized to default settings.
func (*Float64ScaleBuffer) At ¶
func (b *Float64ScaleBuffer) At(i int) float64
At returns Float64Point of scaled data at index i of buffer.
func (*Float64ScaleBuffer) AtRaw ¶
func (b *Float64ScaleBuffer) AtRaw(i int) float64
AtRaw returns Float64Point of original data at index i of buffer.
func (*Float64ScaleBuffer) Clear ¶
func (b *Float64ScaleBuffer) Clear()
Clear resets buffer contents.
func (*Float64ScaleBuffer) Length ¶
func (b *Float64ScaleBuffer) Length() int
Length returns number of data in buffer.
func (*Float64ScaleBuffer) Offset ¶
func (b *Float64ScaleBuffer) Offset() float64
Offset returns data value offset.
func (*Float64ScaleBuffer) Pop ¶
func (b *Float64ScaleBuffer) Pop()
Pop erases the oldest Float64Point from the buffer.
func (*Float64ScaleBuffer) Push ¶
func (b *Float64ScaleBuffer) Push(p float64)
Push adds Float64Point data to the back of the buffer.
func (*Float64ScaleBuffer) ReadAll ¶
func (b *Float64ScaleBuffer) ReadAll() []float64
ReadAll returns entire scaled data buffer.
func (*Float64ScaleBuffer) ReadAllRaw ¶
func (b *Float64ScaleBuffer) ReadAllRaw() []float64
ReadAllRaw returns entire original data buffer.
func (*Float64ScaleBuffer) Scale ¶
func (b *Float64ScaleBuffer) Scale() float64
Scale returns scaling factor.
func (*Float64ScaleBuffer) SetData ¶
func (b *Float64ScaleBuffer) SetData(d []float64)
SetData sets contents of internal buffer to given []float64 and scales the data.
func (*Float64ScaleBuffer) SetOffset ¶
func (b *Float64ScaleBuffer) SetOffset(o float64)
SetOffset updates offset and recomputes all scaled data.
func (*Float64ScaleBuffer) SetScale ¶
func (b *Float64ScaleBuffer) SetScale(sc float64)
SetScale updates scaling factor and recomputes all scaled data.
type Float64ScaleRingBuffer ¶
type Float64ScaleRingBuffer struct {
// contains filtered or unexported fields
}
Float64ScaleRingBuffer is a fix-sized ring buffer that stores float64 data values and a scaled version of the data. Scaling is done by first subtracting by the offset and then multiplying incoming values by a constant scale factor. Unlike traditional ring buffers, pushing data to the buffer while at full capacity will erase the oldest datum from the buffer to create room for writing.
func NewFloat64ScaleRingBuffer ¶
func NewFloat64ScaleRingBuffer(s int, o, sc float64) *Float64ScaleRingBuffer
NewFloat64ScaleRingBuffer returns *Float64ScaleRingBuffer initialized to default settings.
func (*Float64ScaleRingBuffer) Clear ¶
func (b *Float64ScaleRingBuffer) Clear()
Clear resets buffer contents.
func (*Float64ScaleRingBuffer) Length ¶
func (b *Float64ScaleRingBuffer) Length() int
Length returns number of data in buffer.
func (*Float64ScaleRingBuffer) Offset ¶
func (b *Float64ScaleRingBuffer) Offset() float64
Offset returns data value offset.
func (*Float64ScaleRingBuffer) Pop ¶
func (b *Float64ScaleRingBuffer) Pop()
Pop erases the oldest float64 from the buffer.
func (*Float64ScaleRingBuffer) Push ¶
func (b *Float64ScaleRingBuffer) Push(f float64)
Push adds float64 data to the back of the buffer.
func (*Float64ScaleRingBuffer) ReadAll ¶
func (b *Float64ScaleRingBuffer) ReadAll() []float64
ReadAll returns entire scaled data buffer.
func (*Float64ScaleRingBuffer) ReadAllRaw ¶
func (b *Float64ScaleRingBuffer) ReadAllRaw() []float64
ReadAllRaw returns entire original data buffer.
func (*Float64ScaleRingBuffer) Scale ¶
func (b *Float64ScaleRingBuffer) Scale() float64
Scale returns scaling factor.
func (*Float64ScaleRingBuffer) SetOffset ¶
func (b *Float64ScaleRingBuffer) SetOffset(o float64)
SetOffset updates offset and recomputes all scaled data.
func (*Float64ScaleRingBuffer) SetScale ¶
func (b *Float64ScaleRingBuffer) SetScale(sc float64)
SetScale updates scaling factor and recomputes all scaled data.
func (*Float64ScaleRingBuffer) Size ¶
func (b *Float64ScaleRingBuffer) Size() int
Size returns buffer capacity.
Source Files