Add ENC exchange set

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Display nautical charts per the ENC specification.

screenshot

Use case

The ENC specification describes how hydrographic data should be displayed digitally.

An ENC exchange set is a catalog of data files which can be loaded as cells. The cells contain information on how symbols should be displayed in relation to one another, so as to represent information such as depth and obstacles accurately.

How to use the sample

Run the sample and view the ENC data. Pan and zoom around the map. Take note of the high level of detail in the data and the smooth rendering of the layer.

How it works

  1. Specify the path to a local CATALOG.031 file to create an EncExchangeSet.
  2. After loading the exchange set, get the EncDataset objects in the exchange set with datasets().
  3. Create an EncCell for each dataset. Then create an EncLayer for each cell.
  4. Add the ENC layer to a map's operational layers collection to display it.

Relevant API

  • EncCell
  • EncDataset
  • EncExchangeSet
  • EncLayer

Tags

Data, ENC, maritime, nautical chart, layers, hydrographic

Offline data

Read more about how to set up the sample's offline data here.

Link Local Location
Exchange Set <userhome>/ArcGIS/Runtime/Data/ENC/ExchangeSetwithoutUpdates
Hydrography <userhome>/ArcGIS/Runtime/Data/ENC/hydrography

Tags

data, ENC, hydrographic, layers, maritime, nautical chart

Sample Code

AddEncExchangeSet.qmlAddEncExchangeSet.cppAddEncExchangeSet.h
                                  
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// [WriteFile Name=AddEncExchangeSet, Category=Layers]
// [Legal]
// Copyright 2019 Esri.

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

import QtQuick 2.6
import QtQuick.Controls 2.2
import Esri.Samples 1.0

Item {

    // add a mapView component
    MapView {
        id: view
        anchors.fill: parent
    }

    // Declare the C++ instance which creates the scene etc. and supply the view
    AddEncExchangeSetSample {
        id: model
        mapView: view
    }
}

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