Constructor
new DefCurveTangent(topt, normalizeopt, scaleopt)
Default values
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
t |
Number |
<optional> |
The t value |
normalize |
Boolean |
<optional> |
Whether the resulting vector should be normalized |
scale |
Number |
<optional> |
Scaling of the resulting vector |
- Source:
Methods
compute(createInfo) → {Object}
Computes the curve tangent
Parameters:
| Name | Type | Description |
|---|---|---|
createInfo |
CreateInfo | The creation info |
- Source:
Returns:
An object of type TYPE_VECTOR
- Type
- Object
(static) bezierSplineTangent(points, degree, t) → {Object}
Computes the tangent on a Bezier spline.
Parameters:
| Name | Type | Description |
|---|---|---|
points |
Object | The control points |
degree |
Number | The spline degree |
t |
Number | The curve parameter |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) bezierTangent(points, t) → {Object}
Computes the tangent on a Bezier curve.
Parameters:
| Name | Type | Description |
|---|---|---|
points |
Object | The control points |
t |
Number | The curve parameter |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) circleTangent(r, alpha) → {Object}
Computes the tangent on a circle.
Parameters:
| Name | Type | Description |
|---|---|---|
r |
Number | The circle radius |
alpha |
Number | The angle |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) curveTangentRef(obj, t) → {Object}
Computes the tangent and corresponding reference point on a curve.
Supported types are documented at the top of this class
Parameters:
| Name | Type | Description |
|---|---|---|
obj |
Object | The curve object |
t |
Number | The curve parameter |
- Source:
Returns:
The resulting tangent and reference point
- Type
- Object
(static) ellipseTangent(rx, ry, rotation, alpha) → {Object}
Computes the tangent on a ellipse.
Parameters:
| Name | Type | Description |
|---|---|---|
rx |
Number | The ellipse x-eccentricity |
ry |
Number | The ellipse y-eccentricity |
rotation |
Number | The ellipse rotation |
alpha |
Number | The angle |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) fromCurve(obj, topt, normalizeopt, scaleopt) → {CreateInfo}
Computes the tangent on a curve
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
obj |
Number | Object | Either the index or value of a curve object. The supported types are specified at the documention of this class | |
t |
Number | Object |
<optional> |
Either the index or value of a TYPE_NUMBER. The curve parameter |
normalize |
Number | Object |
<optional> |
Either the index or value of a TYPE_BOOLEAN. Whether result will be normalized |
scale |
Number | Object |
<optional> |
Either the index or value of a TYPE_NUMBER. Scaling of result |
- Source:
Returns:
The creation info
- Type
- CreateInfo
(static) lineStripTangent(points, t) → {Object}
Computes the tangent on a line strip.
Parameters:
| Name | Type | Description |
|---|---|---|
points |
Object | The line strip points |
t |
Number | The curve parameter |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) lineTangent(p0, p1) → {Object}
Computes the tangent on a line.
Parameters:
| Name | Type | Description |
|---|---|---|
p0 |
Object | The first line point |
p1 |
Object | The second line point |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) polygonTangent(points, t) → {Object}
Computes the tangent on a polygon.
Parameters:
| Name | Type | Description |
|---|---|---|
points |
Object | The polygon points |
t |
Number | The curve parameter |
- Source:
Returns:
The resulting tangent
- Type
- Object
(static) vectorTangent(v) → {Object}
Computes the point on a vector.
The vector is treated as a line segment from the reference to the arrow tip
Parameters:
| Name | Type | Description |
|---|---|---|
v |
Object | The vector |
- Source:
Returns:
The resulting tangent
- Type
- Object