Lights

#Lights Light sources in 3D scenes.

AmbientLight

Parameters

Name	Type	Description
option	Object	optionalparameter name type default value description color String #ffffff optionalLight source color, supports hexadecimal. intensity Number 1 optionalThe intensity of light irradiation, the value is a positive number.

Case

//Add ambient light source
let ambientLight = new mapmost.AmbientLight({
    color: '#ffffff',
    intensity: 1
})
map.addLight(ambientLight)
//Remove ambient light source
map.removeLight(ambientLight)

DirectionalLight

Parameters

Name	Type	Description
option	Object	optionalparameter name type default value description color String #ffffff optionalLight source color, supports hexadecimal. intensity Number 1 optionalThe intensity of light irradiation, the value is a positive number. position Array [0,0,1] optionalThe starting position of the light source, represented by the array [x, y, z], where x represents the east-west direction, east is positive, y represents the north-south direction, north is positive, z represents the up-down direction, upward is positive; always constitutes the light source direction with the light source target position [0,0,0]. Example [1,1,1] can mean that parallel light shines from the northeast direction at 45°.

Case

//Add directional light source
let directionalLight = new mapmost.DirectionalLight({
    color: '#ffffff',
    intensity: 1,
    position: [0, 0, 1]
})
map.addLight(directionalLight)
//Delete directional light source
map.removeLight(directionalLight)

HemisphereLight

Hemispheric light source is a light source located directly above the scene. The light color gradually changes from the sky color to the ground color.

Parameters

name	type	default value
option	Object	optionalparameter name type default value description skyColor String #ffffff optionalThe color of the light emitted from the sky, supports hexadecimal. groundColor String #ffffff optionalThe color of light emitted from the ground, supports hexadecimal. intensity Number 1 optionalThe intensity of light irradiation, the value is a positive number. position Array [0,0,1] optionalThe direction of the light source gradient, represented by the array [x, y, z]. Among them, x represents the east-west direction, a positive value indicates that skyColor gradually changes from east to west to groundColor, y indicates the north-south direction, a positive value indicates that skyColor gradually changes from north to south to groundColor, z indicates the up-down direction, and a positive value indicates that skyColor gradually changes from top to bottom to groundColor.

Case

//Add hemispheric light source
let hemisphereLight = new mapmost.HemisphereLight({
    skyColor: '#ffffff',
    groundColor: '#ffffff',
    intensity: 1,
    position: [0, 0, 1]
})

map.addLight(hemisphereLight)