Flutter: Get coordinates from a Path for x

» flutter » Flutter: Get coordinates from a Path for x

By : user3100761

Date : January 12 2021, 09:11 PM

it should still fix some issue I found it out by myself.
Calling path.computeMetrics().first returns a PathMetric object. Then you can call getTangentForOffset(offset)to get the Tangent at that given offset.

code :

final metrics = path.computeMetrics().first;
final offset = metrics.getTangentForOffset(x * metrics.length).position;

final metrics = path.computeMetrics().first;
final width = metrics.getTangentForOffset(metrics.length).position.dx;
final offset = metrics.getTangentForOffset((x / width).clamp(0.0, 1.0) * metrics.length).position;

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How to get location name from coordinates in flutter?

By : Miomin

Date : March 29 2020, 07:55 AM

I think the issue was by ths following , use the geocoder plugin it provide you a findAddressesFromCoordinates

code :

final coordinates = new Coordinates(1.10, 45.50);
addresses = await Geocoder.local.findAddressesFromCoordinates(coordinates);
first = addresses.first;
print("${first.featureName} : ${first.addressLine}");

Flutter : Create directory on external storage path - path provider getExternalStorageDirectory()

By : Vash Amar

Date : March 29 2020, 07:55 AM

I wish did fix the issue. The below code is working fine in my application to download an image using the url to the external storage

code :

Future<bool> downloadImage(String url) async {
  await new Future.delayed(new Duration(seconds: 1));
  bool checkResult =
      await SimplePermissions.checkPermission(Permission.WriteExternalStorage);
  if (!checkResult) {
    var status = await SimplePermissions.requestPermission(
        Permission.WriteExternalStorage);
    if (status == PermissionStatus.authorized) {
      var res = await saveImage(url);
      return res != null;
    }
  } else {
    var res = await saveImage(url);
    return res != null;
  }
  return false;
}

Future<Io.File> saveImage(String url) async {
  try {
    final file = await getImageFromNetwork(url);
    var dir = await getExternalStorageDirectory();
    var testdir =
        await new Io.Directory('${dir.path}/iLearn').create(recursive: true);
    IM.Image image = IM.decodeImage(file.readAsBytesSync());
    return new Io.File(
        '${testdir.path}/${DateTime.now().toUtc().toIso8601String()}.png')
      ..writeAsBytesSync(IM.encodePng(image));
  } catch (e) {
    print(e);
    return null;
  }
}

  Future<Io.File> getImageFromNetwork(String url) async {
  var cacheManager = await CacheManager.getInstance();
  Io.File file = await cacheManager.getFile(url);
  return file;
}

import 'dart:io' as Io;
import 'package:image/image.dart' as IM;
import 'package:flutter_cache_manager/flutter_cache_manager.dart';
import 'package:path_provider/path_provider.dart';
import 'package:simple_permissions/simple_permissions.dart';

Having trouble setting flutter path - flutter commands not found

By : jbwan

Date : March 29 2020, 07:55 AM

I wish did fix the issue. I'm using Ubuntu 18.04 LTS. Assuming you have successfully downloaded and extracted flutter_linux_v0.5.1-beta.tar.xz (latest update until now) onto your preferred directory.

code :

export PATH=`pwd`/flutter/bin:$PATH

CAShapeLayer. After rotating frame coordinates update but path coordinates don't

By : Shamini

Date : March 29 2020, 07:55 AM

This might help you Applying a transform to a layer doesn't change the way the layer's content is stored. If the layer contains an image, the image is stored unrotated, and if the layer contains a path, the path is stored unrotated.
Instead, when the window server builds up (“composites”) the screen image, it applies the transform as it is drawing the layer's content into the frame buffer.

code :

@IBAction func tapperDidFire(_ tapper: UITapGestureRecognizer) {
    let newPoint = tapper.location(in: view)
    let newPointInShapeLayer = shapeLayer.convert(newPoint, from: view.layer)
    if shapeLayer.path?.contains(newPointInShapeLayer) ?? false {
        print("Hit!")
    }
}

Flutter get coordinates from google maps

By : Togel Online Terbaik

Date : March 29 2020, 07:55 AM

wish help you to fix your issue I have solved the problem using the onMarkerTapped callback methods below:
Note: mapController below is an instance of the GoogleMap Controller

code :

 mapController.**onMarkerTapped**.add((marker){

      String title= marker.options.infoWindowText.title;
      String latitude= marker.options.position.latitude.toString();
      String longitude= marker.options.position.longitude.toString();

  });