Cut geometry

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Sample viewer app

Cut a geometry along a polyline.

screenshot

Use case

You might cut a polygon representing a large parcel to subdivide it into smaller parcels.

How to use the sample

Click "Cut" to cut the polygon with the polyline and see the resulting parts (shaded in different colors).

How it works

  1. Pass the geometry and polyline to GeometryEngine::cut to cut the geometry along the polyline.
  2. Create a new Graphic for each in the list of cut geometries and add them to the GraphicsOverlay on the MapView.

Relevant API

  • GeometryEngine::cut
  • Polygon
  • Polyline

Tags

cut, geometry, split

Sample Code

CutGeometry.qmlCutGeometry.cppCutGeometry.h
                                               
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// [WriteFile Name=CutGeometry, Category=Geometry]
// [Legal]
// Copyright 2018 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

CutGeometrySample {
    id: rootRectangle
    clip: true
    width: 800
    height: 600

    // add a mapView component
    MapView {
        anchors.fill: parent
        objectName: "mapView"
    }

    Button {
        id: cutButton
        anchors {
            left: parent.left
            top: parent.top
            margins: 10
        }

        text: "Cut"
        onClicked: {
            cutPolygon();
            enabled = false;
        }
    }
}

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