Struct VectorLayerCfg

pub struct VectorLayerCfg {

    pub name: String,
    pub geometry_field: Option<String>,
    pub geometry_type: Option<String>,
    pub srid: Option<i32>,
    pub no_transform: bool,
    pub fid_field: Option<String>,
    pub table_name: Option<String>,
    pub queries: Vec<VectorLayerQueryCfg>,
    pub minzoom: Option<u8>,
    pub maxzoom: Option<u8>,
    pub query_limit: Option<u32>,
    pub tile_size: u32,
    pub buffer_size: Option<u32>,
    pub simplify: bool,
    pub tolerance: String,
    pub make_valid: bool,
    pub shift_longitude: bool,
}

PostGIS vector layer

Fields

name: String

Layer name.

geometry_field: Option<String>

Name of geometry field.

geometry_type: Option<String>

Type of geometry in PostGIS database

POINT | MULTIPOINT | LINESTRING | MULTILINESTRING | POLYGON | MULTIPOLYGON | COMPOUNDCURVE | CURVEPOLYGON

srid: Option<i32>

Spatial reference system of source data (PostGIS SRID)

no_transform: bool

Assume geometry is in grid SRS

fid_field: Option<String>

Name of feature ID field

table_name: Option<String>

Select all fields from table (either table or query is required)

queries: Vec<VectorLayerQueryCfg>

Custom queries

minzoom: Option<u8>

Minimal zoom level for which tiles are available.

maxzoom: Option<u8>

Maximum zoom level for which tiles are available.

query_limit: Option<u32>

Maximal number of features to read for a single tile (Default: unlimited).

tile_size: u32

Width and height of the tile (Default: 4096. Grid default size is 256)

buffer_size: Option<u32>

Tile buffer size in pixels (None: no clipping)

simplify: bool

Simplify geometry (lines and polygons). (Default: false)

Applied to PostGIS sources only.

tolerance: String

Simplification tolerance (defaults to !pixel_width!/2)

make_valid: bool

Fix invalid geometries after simplification (Default: false)

Remark: Clipping step does also fix invalid geometries.

shift_longitude: bool

Apply ST_Shift_Longitude to (transformed) bbox. (Default: false)

Implementations

impl VectorLayerCfg

pub fn minzoom(&self) -> u8

pub fn maxzoom(&self, default: u8) -> u8

pub fn zoom_steps(&self, tms_cfg: &[TilesetTmsCfg]) -> Vec<u8>

Collect min zoom levels

pub fn zoom_step_entry<T>(lookup: &HashMap<u8, T>, zoom: u8) -> Option<&T>

Lookup in HashMap with zoom step key

pub fn query(&self, level: u8) -> Option<&String>

SQL query for zoom level

pub fn simplify(&self, level: u8) -> bool

simplify config for zoom level

pub fn tolerance(&self, level: u8) -> &String

tolerance config for zoom level

Trait Implementations

impl Clone for VectorLayerCfg

fn clone(&self) -> VectorLayerCfg

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VectorLayerCfg

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for VectorLayerCfg

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for VectorLayerCfg

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.