Struct EncoderOptions 

pub struct EncoderOptions { /* private fields */ }

Available on crate feature encoder only.

Integer option bag used to configure Draco encoding.

Options mirror the C++ Draco encoder style: global options apply to the whole geometry, while attribute options override a value for one attribute id and fall back to the global value when unset.

Common keys include quantization_bits (per-attribute precision), encoding_speed/decoding_speed, encoding_method, and prediction_scheme. Keys without an explicit setter are read and written with get_global_int / set_global_int.

Examples

use draco_core::EncoderOptions;

let mut options = EncoderOptions::new();
options.set_global_int("quantization_bits", 14); // default for all attributes
options.set_attribute_int(0, "quantization_bits", 10); // override attribute 0

assert_eq!(options.get_attribute_int(0, "quantization_bits", 0), 10);
// Attribute 1 has no override, so it falls back to the global value.
assert_eq!(options.get_attribute_int(1, "quantization_bits", 0), 14);

Implementations

impl EncoderOptions

pub fn new() -> Self

Creates options with Draco-compatible defaults.

pub fn get_encoding_speed(&self) -> i32

Returns the configured encoding speed, defaulting to 5.

pub fn get_decoding_speed(&self) -> i32

Returns the configured decoding speed target, defaulting to 5.

pub fn get_speed(&self) -> i32

Returns the maximum speed for both encoding/decoding. Matches C++ ExpertEncoder::GetSpeed() behavior.

pub fn set_compression_level(&mut self, level: i32)

Sets both speeds from a draco_encoder-style compression level.

The CLI’s -cl runs 0 (least compression) to 10 (most), the opposite sense of encoding_speed/decoding_speed, and converts with speed = 10 - compression_level before calling the same SetSpeedOptions this crate mirrors; this method does the same conversion and nothing else. level is not range-checked, matching the CLI, which passes an out-of-range -cl straight through the same subtraction rather than rejecting it.

pub fn get_compression_level(&self) -> i32

Returns 10 - get_speed(), the CLI’s compression level for the speed this instance currently carries.

A fresh EncoderOptions reports 5 here, not the CLI’s own default of 7 — the two tools default to different speeds (5 here, 3 there), and this getter reads what is actually set rather than what the CLI would have chosen.

pub fn set_attribute_quantization( &mut self, att_id: i32, quantization_bits: i32, )

Sets quantization_bits for one attribute id.

Equivalent to ExpertEncoder::SetAttributeQuantization and to what the CLI’s -qp/-qt/-qn/-qg resolve to once they have picked an attribute id for POSITION/TEX_COORD/NORMAL/GENERIC; this method takes the id directly rather than a geometry attribute type.

pub fn get_attribute_quantization(&self, att_id: i32) -> i32

Returns the quantization_bits set for one attribute id, or -1 if none was set for it or globally.

pub fn get_prediction_scheme(&self) -> i32

Returns the forced prediction scheme, or -1 for the encoder default.

pub fn set_prediction_scheme(&mut self, value: i32)

Forces a prediction scheme by numeric Draco method id.

pub fn get_encoding_method(&self) -> Option<i32>

Returns the forced encoding method, if one was set.

pub fn set_encoding_method(&mut self, value: i32)

Forces an encoding method by numeric Draco method id.

pub fn set_version(&mut self, major: u8, minor: u8)

Sets the target Draco bitstream version.

pub fn get_version(&self) -> (u8, u8)

Returns the target Draco bitstream version, or (0, 0) for default.

pub fn set_global_int(&mut self, key: &str, value: i32)

Sets a global integer option.

pub fn get_global_int(&self, key: &str, default_val: i32) -> i32

Returns a global integer option or the supplied default.

pub fn set_attribute_int(&mut self, att_id: i32, key: &str, value: i32)

Sets an integer option for one attribute id.

pub fn get_attribute_int(&self, att_id: i32, key: &str, default_val: i32) -> i32

Returns an attribute integer option, falling back to the global value.

Trait Implementations

impl Clone for EncoderOptions

fn clone(&self) -> EncoderOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EncoderOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EncoderOptions

fn default() -> EncoderOptions

Returns the “default value” for a type.