@doegis/core
Version:
DOE GIS API
3 lines (1 loc) • 801 B
JavaScript
import{BufferObject as t}from"../../../webgl/BufferObject.js";import{Usage as e,DataType as r,PrimitiveType as s}from"../../../webgl/enums.js";import{VertexArrayObject as i}from"../../../webgl/VertexArrayObject.js";import{VertexElementDescriptor as o}from"../../../webgl/VertexElementDescriptor.js";class n{constructor(s,n){this._rctx=s,this._vertexBuffer=t.createVertex(s,e.STATIC_DRAW,new Uint16Array(n)),this._vao=new i(s,new Map([["a_position",0]]),{geometry:[new o("a_position",2,r.SHORT,0,4)]},{geometry:this._vertexBuffer}),this._count=n.length/2}bind(){this._rctx.bindVAO(this._vao)}unbind(){this._rctx.bindVAO(null)}dispose(){this._vao.dispose(!1),this._vertexBuffer.dispose()}draw(){this._rctx.bindVAO(this._vao),this._rctx.drawArrays(s.TRIANGLE_STRIP,0,this._count)}}export{n as default};