trackoffical_app/lib/widget/matrix_test.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:vector_math/vector_math_64.dart' as vec;


class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {







  @override
  Widget build(BuildContext context) {

    var m4 = Matrix4.identity();
    // m4.translate(100.0);
    var mr = Matrix4.rotationZ(vec.radians(90));
    m4 = mr * m4;
    var t1 = Matrix4.translationValues(100, 0, 0);
    m4 = t1 * m4;

    return Scaffold(
      body: Center(
        child: Transform(
          transform: m4,
          alignment: FractionalOffset.center,
          child: Container(
              color: Colors.red,
              child: const Text('123456'),
          ),
        ),
      ),
    );
  }
}




void main() {
  runApp(GetMaterialApp(
      home: MyHomePage()));
}