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⠇⠁⠵ LAS/LAZ Pointcloud Reader in TypeScript
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vojtatom/laz.ts
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TypeScript package for loading LAS/LAZ, primary developed for for WebGL applications, intended for lazy people who just want to load their point clouds and don't care about the details.
- ✅ returns a dev-friendly format
- ✅ internally based onlaz-perf
- ✅ supports funky coordinate systems
- ✅ uses vitest 🧪 for testing
Install fromnpm
npm install laztsimport{parse}from'lazts/lazts';//1) obtain ArrayBuffer somehowconstarrayBuffer=openFileAsArray('testdata/test.las');//2) parse itconstdata:LazData=awaitparse(arrayBuffer);
whereLazData is defined as
interfaceLazData{header:{pointsOffset:number;pointsFormatId:number;pointsStructSize:number;pointsCount:number;scale:[number,number,number];offset:[number,number,number];maxs:[number,number,number];mins:[number,number,number];totalToRead:number;totalRead:number;};attributes:{position:{value:Int32Array;size:3};intensity:{value:Float32Array;size:1};classification:{value:Uint8Array;size:1};color0?:{value:Uint8Array;size:4};};}
When working with funky coordinates (e.g. the coordinates are too big and there is no offset), you can use theadjustOffset option:
constdataWithNonZeroOffset=awaitparse(buffer,{adjustOffset:true,});
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⠇⠁⠵ LAS/LAZ Pointcloud Reader in TypeScript
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