LVecBase3f

addToCell(i: int, value: float): These next functions add to an existing value. i.e. foo.set_x(foo.get_x() + value) These are useful to reduce overhead in scripting languages:

addX(value: float)

addY(value: float)

addZ(value: float)

almostEqual(other: LVecBase3f) → bool: Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.

almostEqual(other: LVecBase3f, threshold: float) → bool: Returns true if two vectors are memberwise equal within a specified tolerance.

assign(copy: LVecBase3f) → LVecBase3f

assign(fill_value: float) → LVecBase3f

compareTo(other: LVecBase3f) → int: This flavor of compareTo() uses a default threshold value based on the numeric type.

compareTo(other: LVecBase3f, threshold: float) → int: Sorts vectors lexicographically, componentwise. Returns a number less than 0 if this vector sorts before the other one, greater than zero if it sorts after, 0 if they are equivalent (within the indicated tolerance).

componentwiseMult(other: LVecBase3f)

cross(other: LVecBase3f) → LVecBase3f

crossInto(other: LVecBase3f)

dot(other: LVecBase3f) → float

fill(fill_value: float): Sets each element of the vector to the indicated fill_value. This is particularly useful for initializing to zero.

fmax(other: LVecBase3f) → LVecBase3f

fmin(other: LVecBase3f) → LVecBase3f

generateHash(hashgen: ChecksumHashGenerator): Adds the vector to the indicated hash generator.

generateHash(hashgen: ChecksumHashGenerator, threshold: float): Adds the vector to the indicated hash generator.

getCell(i: int) → float

static getClassType() → TypeHandle

getData(): Returns the address of the first of the three data elements in the vector. The remaining elements occupy the next positions consecutively in memory.

getHash() → int: Returns a suitable hash for phash_map.

getHash(threshold: float) → int: Returns a suitable hash for phash_map.

static getNumComponents() → int

getStandardizedHpr() → LVecBase3f

Try to un-spin the hpr to a standard form. Like all standards, someone decides between many arbitrary possible standards. This function assumes that 0 and 360 are the same, as is 720 and -360. Also 180 and -180 are the same. Another example is -90 and 270. Each element will be in the range -180.0 to 179.99999. The original usage of this function is for human readable output.

It doesn’t work so well for asserting that foo_hpr is roughly equal to bar_hpr. Try using LQuaternionf.isSameDirection() for that. See Also: get_standardized_rotation, LQuaternion::is_same_direction

getX() → float

getXy() → LVecBase2f: Returns a 2-component vector that shares just the first two components of this vector.

getXz() → LVecBase2f: Returns a 2-component vector that shares just the first and last components of this vector.

getY() → float

getYz() → LVecBase2f: Returns a 2-component vector that shares just the last two components of this vector.

getZ() → float

isNan() → bool: Returns true if any component of the vector is not-a-number, false otherwise.

length() → float: Returns the length of the vector, by the Pythagorean theorem.

lengthSquared() → float: Returns the square of the vector’s length, cheap and easy.

normalize() → bool: Normalizes the vector in place. Returns true if the vector was normalized, false if it was a zero-length vector.

normalized() → LVecBase3f: Normalizes the vector and returns the normalized vector as a copy. If the vector was a zero-length vector, a zero length vector will be returned.

operatorNew(size: int)

output(out: ostream)

project(onto: LVecBase3f) → LVecBase3f: Returns a new vector representing the projection of this vector onto another one. The resulting vector will be a scalar multiple of onto.

readDatagram(source: DatagramIterator): Reads the vector from the Datagram using get_stdfloat().

readDatagramFixed(source: DatagramIterator): Reads the vector from the Datagram using get_float32() or get_float64(). See writeDatagramFixed().

set(x: float, y: float, z: float)

setCell(i: int, value: float)

setX(value: float)

setY(value: float)

setZ(value: float)

static size() → int

static unitX() → LVecBase3f: Returns a unit X vector.

static unitY() → LVecBase3f: Returns a unit Y vector.

static unitZ() → LVecBase3f: Returns a unit Z vector.

writeDatagram(destination: Datagram): Writes the vector to the Datagram using add_stdfloat(). This is appropriate when you want to write the vector using the standard width setting, especially when you are writing a bam file.

writeDatagramFixed(destination: Datagram): Writes the vector to the Datagram using add_float32() or add_float64(), depending on the type of floats in the vector, regardless of the setting of Datagram.setStdfloatDouble(). This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.

property x → float

property xy → LVecBase2f: Returns a 2-component vector that shares just the first two components of this vector.

property xz → LVecBase2f: Returns a 2-component vector that shares just the first and last components of this vector.

property y → float

property yz → LVecBase2f: Returns a 2-component vector that shares just the last two components of this vector.

property z → float

static zero() → LVecBase3f: Returns a zero-length vector.