SurveyMapVisual.qml 5.87 KB
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/****************************************************************************
 *
 *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/

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import QtQuick          2.3
import QtQuick.Controls 1.2
import QtLocation       5.3
import QtPositioning    5.3
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import QGroundControl               1.0
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import QGroundControl.ScreenTools   1.0
import QGroundControl.Palette       1.0
import QGroundControl.Controls      1.0
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import QGroundControl.FlightMap     1.0
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/// Survey Complex Mission Item visuals
Item {
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    id: _root

DonLakeFlyer's avatar
DonLakeFlyer committed
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    property var map        ///< Map control to place item in
    property var qgcView    ///< QGCView to use for popping dialogs
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    property var _missionItem:      object
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    property var _mapPolygon:       object.surveyAreaPolygon
    property var _visualTransectsComponent
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    property var _entryCoordinate
    property var _exitCoordinate
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    signal clicked(int sequenceNumber)

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    function _addVisualElements() {
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        _visualTransectsComponent = visualTransectsComponent.createObject(map)
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        _entryCoordinate = entryPointComponent.createObject(map)
        _exitCoordinate = exitPointComponent.createObject(map)
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        map.addMapItem(_visualTransectsComponent)
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        map.addMapItem(_entryCoordinate)
        map.addMapItem(_exitCoordinate)
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    }

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    function _destroyVisualElements() {
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        _visualTransectsComponent.destroy()
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        _entryCoordinate.destroy()
        _exitCoordinate.destroy()
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    }

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    /// Add an initial 4 sided polygon if there is none
    function _addInitialPolygon() {
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        if (_mapPolygon.count < 3) {
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            // Initial polygon is inset to take 2/3rds space
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            var rect = Qt.rect(map.centerViewport.x, map.centerViewport.y, map.centerViewport.width, map.centerViewport.height)
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            rect.x += (rect.width * 0.25) / 2
            rect.y += (rect.height * 0.25) / 2
            rect.width *= 0.75
            rect.height *= 0.75
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            var centerCoord =       map.toCoordinate(Qt.point(rect.x + (rect.width / 2), rect.y + (rect.height / 2)),   false /* clipToViewPort */)
            var topLeftCoord =      map.toCoordinate(Qt.point(rect.x, rect.y),                                          false /* clipToViewPort */)
            var topRightCoord =     map.toCoordinate(Qt.point(rect.x + rect.width, rect.y),                             false /* clipToViewPort */)
            var bottomLeftCoord =   map.toCoordinate(Qt.point(rect.x, rect.y + rect.height),                            false /* clipToViewPort */)
            var bottomRightCoord =  map.toCoordinate(Qt.point(rect.x + rect.width, rect.y + rect.height),               false /* clipToViewPort */)

            // Initial polygon has max width and height of 3000 meters
            var halfWidthMeters =   Math.min(topLeftCoord.distanceTo(topRightCoord), 3000) / 2
            var halfHeightMeters =  Math.min(topLeftCoord.distanceTo(bottomLeftCoord), 3000) / 2
            topLeftCoord =      centerCoord.atDistanceAndAzimuth(halfWidthMeters, -90).atDistanceAndAzimuth(halfHeightMeters, 0)
            topRightCoord =     centerCoord.atDistanceAndAzimuth(halfWidthMeters, 90).atDistanceAndAzimuth(halfHeightMeters, 0)
            bottomLeftCoord =   centerCoord.atDistanceAndAzimuth(halfWidthMeters, -90).atDistanceAndAzimuth(halfHeightMeters, 180)
            bottomRightCoord =  centerCoord.atDistanceAndAzimuth(halfWidthMeters, 90).atDistanceAndAzimuth(halfHeightMeters, 180)

            _mapPolygon.appendVertex(topLeftCoord)
            _mapPolygon.appendVertex(topRightCoord)
            _mapPolygon.appendVertex(bottomRightCoord)
            _mapPolygon.appendVertex(bottomLeftCoord)
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        }
    }

    Component.onCompleted: {
        _addInitialPolygon()
        _addVisualElements()
    }

    Component.onDestruction: {
        _destroyVisualElements()
    }

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    QGCMapPolygonVisuals {
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        id:                 mapPolygonVisuals
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        qgcView:            _root.qgcView
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        mapControl:         map
        mapPolygon:         _mapPolygon
        interactive:        _missionItem.isCurrentItem
        borderWidth:        1
        borderColor:        "black"
        interiorColor:      "green"
        interiorOpacity:    0.5
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    }

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    // Transect lines
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    Component {
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        id: visualTransectsComponent
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        MapPolyline {
            line.color: "white"
            line.width: 2
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            path:       _missionItem.visualTransectPoints
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        }
    }

    // Entry point
    Component {
        id: entryPointComponent

        MapQuickItem {
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            anchorPoint.x:  sourceItem.anchorPointX
            anchorPoint.y:  sourceItem.anchorPointY
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            z:              QGroundControl.zOrderMapItems
            coordinate:     _missionItem.coordinate
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            visible:        _missionItem.exitCoordinate.isValid
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            sourceItem: MissionItemIndexLabel {
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                index:      _missionItem.sequenceNumber
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                label:      "Entry"
                checked:    _missionItem.isCurrentItem
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                onClicked:  _root.clicked(_missionItem.sequenceNumber)
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            }
        }
    }

    // Exit point
    Component {
        id: exitPointComponent

        MapQuickItem {
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            anchorPoint.x:  sourceItem.anchorPointX
            anchorPoint.y:  sourceItem.anchorPointY
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            z:              QGroundControl.zOrderMapItems
            coordinate:     _missionItem.exitCoordinate
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            visible:        _missionItem.exitCoordinate.isValid
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            sourceItem: MissionItemIndexLabel {
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                index:      _missionItem.lastSequenceNumber
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                label:      "Exit"
                checked:    _missionItem.isCurrentItem
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                onClicked:  _root.clicked(_missionItem.sequenceNumber)
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            }
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        }
    }
}