var __extends =
|
(this && this.__extends) ||
|
(function () {
|
var extendStatics = function (d, b) {
|
extendStatics =
|
Object.setPrototypeOf ||
|
({ __proto__: [] } instanceof Array &&
|
function (d, b) {
|
d.__proto__ = b;
|
}) ||
|
function (d, b) {
|
for (var p in b)
|
if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p];
|
};
|
return extendStatics(d, b);
|
};
|
return function (d, b) {
|
if (typeof b !== "function" && b !== null)
|
throw new TypeError(
|
"Class extends value " + String(b) + " is not a constructor or null"
|
);
|
extendStatics(d, b);
|
function __() {
|
this.constructor = d;
|
}
|
d.prototype =
|
b === null
|
? Object.create(b)
|
: ((__.prototype = b.prototype), new __());
|
};
|
})();
|
/**
|
* @module ol/interaction/Draw
|
*/
|
import Circle from "ol/geom/Circle.js";
|
import Event from "ol/events/Event.js";
|
import EventType from "ol/events/EventType.js";
|
import Feature from "ol/Feature.js";
|
import GeometryType from "ol/geom/GeometryType.js";
|
import InteractionProperty from "ol/interaction/Property.js";
|
import LineString from "ol/geom/LineString.js";
|
import MapBrowserEvent from "ol/MapBrowserEvent.js";
|
import MapBrowserEventType from "ol/MapBrowserEventType.js";
|
import MultiLineString from "ol/geom/MultiLineString.js";
|
import MultiPoint from "ol/geom/MultiPoint.js";
|
import MultiPolygon from "ol/geom/MultiPolygon.js";
|
import Point from "ol/geom/Point.js";
|
import PointerInteraction from "ol/interaction/Pointer.js";
|
import Polygon, { fromCircle, makeRegular } from "ol/geom/Polygon.js";
|
import VectorLayer from "ol/layer/Vector.js";
|
import VectorSource from "ol/source/Vector.js";
|
import { FALSE, TRUE } from "ol/functions.js";
|
import { always, noModifierKeys, shiftKeyOnly } from "ol/events/condition.js";
|
import {
|
boundingExtent,
|
getBottomLeft,
|
getBottomRight,
|
getTopLeft,
|
getTopRight,
|
} from "ol/extent.js";
|
import { createEditingStyle } from "ol/style/Style.js";
|
import { fromUserCoordinate, getUserProjection } from "ol/proj.js";
|
import { squaredDistance as squaredCoordinateDistance } from "ol/coordinate.js";
|
/**
|
* @typedef {Object} Options
|
* @property {import("ol/geom/GeometryType.js").default} type Geometry type of
|
* the geometries being drawn with this instance.
|
* @property {number} [clickTolerance=6] The maximum distance in pixels between
|
* "down" and "up" for a "up" event to be considered a "click" event and
|
* actually add a point/vertex to the geometry being drawn. The default of `6`
|
* was chosen for the draw interaction to behave correctly on mouse as well as
|
* on touch devices.
|
* @property {import("ol/Collection.js").default<Feature>} [features]
|
* Destination collection for the drawn features.
|
* @property {VectorSource} [source] Destination source for
|
* the drawn features.
|
* @property {number} [dragVertexDelay=500] Delay in milliseconds after pointerdown
|
* before the current vertex can be dragged to its exact position.
|
* @property {number} [snapTolerance=12] Pixel distance for snapping to the
|
* drawing finish. Must be greater than `0`.
|
* @property {boolean} [stopClick=false] Stop click, singleclick, and
|
* doubleclick events from firing during drawing.
|
* @property {number} [maxPoints] The number of points that can be drawn before
|
* a polygon ring or line string is finished. By default there is no
|
* restriction.
|
* @property {number} [minPoints] The number of points that must be drawn
|
* before a polygon ring or line string can be finished. Default is `3` for
|
* polygon rings and `2` for line strings.
|
* @property {import("ol/events/condition.js").Condition} [finishCondition] A function
|
* that takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
|
* boolean to indicate whether the drawing can be finished. Not used when drawing
|
* POINT or MULTI_POINT geometries.
|
* @property {import("ol/style/Style.js").StyleLike} [style]
|
* Style for sketch features.
|
* @property {GeometryFunction} [geometryFunction]
|
* Function that is called when a geometry's coordinates are updated.
|
* @property {string} [geometryName] Geometry name to use for features created
|
* by the draw interaction.
|
* @property {import("ol/events/condition.js").Condition} [condition] A function that
|
* takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and returns a
|
* boolean to indicate whether that event should be handled.
|
* By default {@link module:ol/events/condition.noModifierKeys}, i.e. a click,
|
* adds a vertex or deactivates freehand drawing.
|
* @property {boolean} [freehand=false] Operate in freehand mode for lines,
|
* polygons, and circles. This makes the interaction always operate in freehand
|
* mode and takes precedence over any `freehandCondition` option.
|
* @property {import("ol/events/condition.js").Condition} [freehandCondition]
|
* Condition that activates freehand drawing for lines and polygons. This
|
* function takes an {@link module:ol/MapBrowserEvent~MapBrowserEvent} and
|
* returns a boolean to indicate whether that event should be handled. The
|
* default is {@link module:ol/events/condition.shiftKeyOnly}, meaning that the
|
* Shift key activates freehand drawing.
|
* @property {boolean} [wrapX=false] Wrap the world horizontally on the sketch
|
* overlay.
|
*/
|
/**
|
* Coordinate type when drawing points.
|
* @typedef {import("ol/coordinate.js").Coordinate} PointCoordType
|
*/
|
/**
|
* Coordinate type when drawing lines.
|
* @typedef {Array<import("ol/coordinate.js").Coordinate>} LineCoordType
|
*/
|
/**
|
* Coordinate type when drawing polygons.
|
* @typedef {Array<Array<import("ol/coordinate.js").Coordinate>>} PolyCoordType
|
*/
|
/**
|
* Types used for drawing coordinates.
|
* @typedef {PointCoordType|LineCoordType|PolyCoordType} SketchCoordType
|
*/
|
/**
|
* Function that takes an array of coordinates and an optional existing geometry
|
* and a projection as arguments, and returns a geometry. The optional existing
|
* geometry is the geometry that is returned when the function is called without
|
* a second argument.
|
* @typedef {function(!SketchCoordType, import("ol/geom/SimpleGeometry.js").default,
|
* import("ol/proj/Projection.js").default):
|
* import("ol/geom/SimpleGeometry.js").default} GeometryFunction
|
*/
|
/**
|
* Draw mode. This collapses multi-part geometry types with their single-part
|
* cousins.
|
* @enum {string}
|
*/
|
var Mode = {
|
POINT: "Point",
|
LINE_STRING: "LineString",
|
POLYGON: "Polygon",
|
CIRCLE: "Circle",
|
};
|
/**
|
* @enum {string}
|
*/
|
var DrawEventType = {
|
/**
|
* Triggered upon feature draw start
|
* @event DrawEvent#drawstart
|
* @api
|
*/
|
DRAWSTART: "drawstart",
|
/**
|
* Triggered upon feature draw end
|
* @event DrawEvent#drawend
|
* @api
|
*/
|
DRAWEND: "drawend",
|
/**
|
* Triggered upon feature draw abortion
|
* @event DrawEvent#drawabort
|
* @api
|
*/
|
DRAWABORT: "drawabort",
|
};
|
/**
|
* @classdesc
|
* Events emitted by {@link module:ol/interaction/Draw~Draw} instances are
|
* instances of this type.
|
*/
|
var DrawEvent = /** @class */ (function (_super) {
|
__extends(DrawEvent, _super);
|
/**
|
* @param {DrawEventType} type Type.
|
* @param {Feature} feature The feature drawn.
|
*/
|
function DrawEvent(type, feature) {
|
var _this = _super.call(this, type) || this;
|
/**
|
* The feature being drawn.
|
* @type {Feature}
|
* @api
|
*/
|
_this.feature = feature;
|
return _this;
|
}
|
return DrawEvent;
|
})(Event);
|
export { DrawEvent };
|
/***
|
* @template Return
|
* @typedef {import("ol/Observable").OnSignature<import("ol/Observable").EventTypes, import("ol/events/Event.js").default, Return> &
|
* import("ol/Observable").OnSignature<import("ol/ObjectEventType").Types|
|
* 'change:active', import("ol/Object").ObjectEvent, Return> &
|
* import("ol/Observable").OnSignature<'drawabort'|'drawend'|'drawstart', DrawEvent, Return> &
|
* import("ol/Observable").CombinedOnSignature<import("ol/Observable").EventTypes|import("ol/ObjectEventType").Types|
|
* 'change:active'|'drawabort'|'drawend'|'drawstart', Return>} DrawOnSignature
|
*/
|
/**
|
* @classdesc
|
* Interaction for drawing feature geometries.
|
*
|
* @fires DrawEvent
|
* @api
|
*/
|
var Draw = /** @class */ (function (_super) {
|
__extends(Draw, _super);
|
/**
|
* @param {Options} options Options.
|
*/
|
function Draw(options) {
|
var _this = this;
|
var pointerOptions = /** @type {import("./Pointer.js").Options} */ (
|
options
|
);
|
if (!pointerOptions.stopDown) {
|
pointerOptions.stopDown = FALSE;
|
}
|
_this = _super.call(this, pointerOptions) || this;
|
/***
|
* @type {DrawOnSignature<import("ol/events").EventsKey>}
|
*/
|
_this.coordinate = options.coordinate;
|
/***
|
* 输出坐标
|
*/
|
_this.coordinateOver = options.coordinateOver;
|
/***
|
* 结束绘画
|
*/
|
_this.overDraw = false;
|
/***
|
* 控制结束绘画
|
*/
|
_this.isPoint = options.isPoint;
|
/***
|
* 是否是点
|
*/
|
_this.coordinateOverPoint = options.coordinateOverPoint;
|
/***
|
* 输出点
|
*/
|
_this.on;
|
/***
|
* @type {DrawOnSignature<import("ol/events").EventsKey>}
|
*/
|
_this.once;
|
/***
|
* @type {DrawOnSignature<void>}
|
*/
|
_this.un;
|
/**
|
* @type {boolean}
|
* @private
|
*/
|
_this.shouldHandle_ = false;
|
/**
|
* @type {import("ol/pixel.js").Pixel}
|
* @private
|
*/
|
_this.downPx_ = null;
|
/**
|
* @type {?}
|
* @private
|
*/
|
_this.downTimeout_;
|
/**
|
* @type {number|undefined}
|
* @private
|
*/
|
_this.lastDragTime_;
|
/**
|
* Pointer type of the last pointermove event
|
* @type {string}
|
* @private
|
*/
|
_this.pointerType_;
|
/**
|
* @type {boolean}
|
* @private
|
*/
|
_this.freehand_ = false;
|
/**
|
* Target source for drawn features.
|
* @type {VectorSource}
|
* @private
|
*/
|
_this.source_ = options.source ? options.source : null;
|
/**
|
* Target collection for drawn features.
|
* @type {import("ol/Collection.js").default<Feature>}
|
* @private
|
*/
|
_this.features_ = options.features ? options.features : null;
|
/**
|
* Pixel distance for snapping.
|
* @type {number}
|
* @private
|
*/
|
_this.snapTolerance_ = options.snapTolerance ? options.snapTolerance : 12;
|
/**
|
* Geometry type.
|
* @type {import("ol/geom/GeometryType.js").default}
|
* @private
|
*/
|
_this.type_ = /** @type {import("ol/geom/GeometryType.js").default} */ (
|
options.type
|
);
|
/**
|
* Drawing mode (derived from geometry type.
|
* @type {Mode}
|
* @private
|
*/
|
_this.mode_ = getMode(_this.type_);
|
/**
|
* Stop click, singleclick, and doubleclick events from firing during drawing.
|
* Default is `false`.
|
* @type {boolean}
|
* @private
|
*/
|
_this.stopClick_ = !!options.stopClick;
|
/**
|
* The number of points that must be drawn before a polygon ring or line
|
* string can be finished. The default is 3 for polygon rings and 2 for
|
* line strings.
|
* @type {number}
|
* @private
|
*/
|
_this.minPoints_ = options.minPoints
|
? options.minPoints
|
: _this.mode_ === Mode.POLYGON
|
? 3
|
: 2;
|
/**
|
* The number of points that can be drawn before a polygon ring or line string
|
* is finished. The default is no restriction.
|
* @type {number}
|
* @private
|
*/
|
_this.maxPoints_ =
|
_this.mode_ === Mode.CIRCLE
|
? 2
|
: options.maxPoints
|
? options.maxPoints
|
: Infinity;
|
/**
|
* A function to decide if a potential finish coordinate is permissible
|
* @private
|
* @type {import("ol/events/condition.js").Condition}
|
*/
|
_this.finishCondition_ = options.finishCondition
|
? options.finishCondition
|
: TRUE;
|
var geometryFunction = options.geometryFunction;
|
if (!geometryFunction) {
|
var mode_1 = _this.mode_;
|
if (mode_1 === Mode.CIRCLE) {
|
/**
|
* @param {!LineCoordType} coordinates The coordinates.
|
* @param {import("ol/geom/SimpleGeometry.js").default|undefined} geometry Optional geometry.
|
* @param {import("ol/proj/Projection.js").default} projection The view projection.
|
* @return {import("ol/geom/SimpleGeometry.js").default} A geometry.
|
*/
|
geometryFunction = function (coordinates, geometry, projection) {
|
var circle = geometry
|
? /** @type {Circle} */ (geometry)
|
: new Circle([NaN, NaN]);
|
var center = fromUserCoordinate(coordinates[0], projection);
|
var squaredLength = squaredCoordinateDistance(
|
center,
|
fromUserCoordinate(coordinates[coordinates.length - 1], projection)
|
);
|
circle.setCenterAndRadius(center, Math.sqrt(squaredLength));
|
var userProjection = getUserProjection();
|
if (userProjection) {
|
circle.transform(projection, userProjection);
|
}
|
return circle;
|
};
|
} else {
|
var Constructor_1;
|
if (mode_1 === Mode.POINT) {
|
Constructor_1 = Point;
|
} else if (mode_1 === Mode.LINE_STRING) {
|
Constructor_1 = LineString;
|
} else if (mode_1 === Mode.POLYGON) {
|
Constructor_1 = Polygon;
|
}
|
/**
|
* @param {!LineCoordType} coordinates The coordinates.
|
* @param {import("ol/geom/SimpleGeometry.js").default|undefined} geometry Optional geometry.
|
* @param {import("ol/proj/Projection.js").default} projection The view projection.
|
* @return {import("ol/geom/SimpleGeometry.js").default} A geometry.
|
*/
|
geometryFunction = function (coordinates, geometry, projection) {
|
if (geometry) {
|
if (mode_1 === Mode.POLYGON) {
|
if (coordinates[0].length) {
|
// Add a closing coordinate to match the first
|
geometry.setCoordinates([
|
coordinates[0].concat([coordinates[0][0]]),
|
]);
|
} else {
|
geometry.setCoordinates([]);
|
}
|
} else {
|
geometry.setCoordinates(coordinates);
|
}
|
} else {
|
geometry = new Constructor_1(coordinates);
|
}
|
return geometry;
|
};
|
}
|
}
|
/**
|
* @type {GeometryFunction}
|
* @private
|
*/
|
_this.geometryFunction_ = geometryFunction;
|
/**
|
* @type {number}
|
* @private
|
*/
|
_this.dragVertexDelay_ =
|
options.dragVertexDelay !== undefined ? options.dragVertexDelay : 500;
|
/**
|
* Finish coordinate for the feature (first point for polygons, last point for
|
* linestrings).
|
* @type {import("ol/coordinate.js").Coordinate}
|
* @private
|
*/
|
_this.finishCoordinate_ = null;
|
/**
|
* Sketch feature.
|
* @type {Feature}
|
* @private
|
*/
|
_this.sketchFeature_ = null;
|
/**
|
* Sketch point.
|
* @type {Feature<Point>}
|
* @private
|
*/
|
_this.sketchPoint_ = null;
|
/**
|
* Sketch coordinates. Used when drawing a line or polygon.
|
* @type {SketchCoordType}
|
* @private
|
*/
|
_this.sketchCoords_ = null;
|
/**
|
* Sketch line. Used when drawing polygon.
|
* @type {Feature<LineString>}
|
* @private
|
*/
|
_this.sketchLine_ = null;
|
/**
|
* Sketch line coordinates. Used when drawing a polygon or circle.
|
* @type {LineCoordType}
|
* @private
|
*/
|
_this.sketchLineCoords_ = null;
|
/**
|
* Squared tolerance for handling up events. If the squared distance
|
* between a down and up event is greater than this tolerance, up events
|
* will not be handled.
|
* @type {number}
|
* @private
|
*/
|
_this.squaredClickTolerance_ = options.clickTolerance
|
? options.clickTolerance * options.clickTolerance
|
: 36;
|
/**
|
* Draw overlay where our sketch features are drawn.
|
* @type {VectorLayer}
|
* @private
|
*/
|
_this.overlay_ = new VectorLayer({
|
source: new VectorSource({
|
useSpatialIndex: false,
|
wrapX: options.wrapX ? options.wrapX : false,
|
}),
|
style: options.style ? options.style : getDefaultStyleFunction(),
|
updateWhileInteracting: true,
|
});
|
/**
|
* Name of the geometry attribute for newly created features.
|
* @type {string|undefined}
|
* @private
|
*/
|
_this.geometryName_ = options.geometryName;
|
/**
|
* @private
|
* @type {import("ol/events/condition.js").Condition}
|
*/
|
_this.condition_ = options.condition ? options.condition : noModifierKeys;
|
/**
|
* @private
|
* @type {import("ol/events/condition.js").Condition}
|
*/
|
_this.freehandCondition_;
|
if (options.freehand) {
|
_this.freehandCondition_ = always;
|
} else {
|
_this.freehandCondition_ = options.freehandCondition
|
? options.freehandCondition
|
: shiftKeyOnly;
|
}
|
_this.addChangeListener(InteractionProperty.ACTIVE, _this.updateState_);
|
return _this;
|
}
|
/**
|
* Remove the interaction from its current map and attach it to the new map.
|
* Subclasses may set up event handlers to get notified about changes to
|
* the map here.
|
* @param {import("ol/PluggableMap.js").default} map Map.
|
*/
|
Draw.prototype.setMap = function (map) {
|
_super.prototype.setMap.call(this, map);
|
this.updateState_();
|
};
|
/**
|
* Get the overlay layer that this interaction renders sketch features to.
|
* @return {VectorLayer} Overlay layer.
|
* @api
|
*/
|
Draw.prototype.getOverlay = function () {
|
return this.overlay_;
|
};
|
/**
|
* Handles the {@link module:ol/MapBrowserEvent map browser event} and may actually draw or finish the drawing.
|
* @param {import("ol/MapBrowserEvent.js").default} event Map browser event.
|
* @return {boolean} `false` to stop event propagation.
|
* @api
|
*/
|
Draw.prototype.controlDrawing = function (val) {
|
this.overDraw = val;
|
};
|
|
Draw.prototype.handleEvent = function (event) {
|
if (event.originalEvent.type === EventType.CONTEXTMENU) {
|
// Avoid context menu for long taps when drawing on mobile
|
event.originalEvent.preventDefault();
|
}
|
this.freehand_ =
|
this.mode_ !== Mode.POINT && this.freehandCondition_(event);
|
var move = event.type === MapBrowserEventType.POINTERMOVE;
|
var pass = true;
|
if (
|
!this.freehand_ &&
|
this.lastDragTime_ &&
|
event.type === MapBrowserEventType.POINTERDRAG
|
) {
|
var now = Date.now();
|
if (now - this.lastDragTime_ >= this.dragVertexDelay_) {
|
this.downPx_ = event.pixel;
|
this.shouldHandle_ = !this.freehand_;
|
move = true;
|
} else {
|
this.lastDragTime_ = undefined;
|
}
|
if (this.shouldHandle_ && this.downTimeout_ !== undefined) {
|
clearTimeout(this.downTimeout_);
|
this.downTimeout_ = undefined;
|
}
|
}
|
if (
|
this.freehand_ &&
|
event.type === MapBrowserEventType.POINTERDRAG &&
|
this.sketchFeature_ !== null
|
) {
|
if (this.overDraw) {
|
return;
|
}
|
this.addToDrawing_(event.coordinate);
|
pass = false;
|
} else if (
|
this.freehand_ &&
|
event.type === MapBrowserEventType.POINTERDOWN
|
) {
|
pass = false;
|
} else if (move && this.getPointerCount() < 2) {
|
pass = event.type === MapBrowserEventType.POINTERMOVE;
|
if (pass && this.freehand_) {
|
if (this.overDraw) {
|
return;
|
}
|
this.handlePointerMove_(event);
|
if (this.shouldHandle_) {
|
// Avoid page scrolling when freehand drawing on mobile
|
event.originalEvent.preventDefault();
|
}
|
} else if (
|
event.originalEvent.pointerType === "mouse" ||
|
(event.type === MapBrowserEventType.POINTERDRAG &&
|
this.downTimeout_ === undefined)
|
) {
|
if (this.overDraw) {
|
return;
|
}
|
this.handlePointerMove_(event);
|
}
|
} else if (event.type === MapBrowserEventType.DBLCLICK) {
|
pass = false;
|
}
|
return _super.prototype.handleEvent.call(this, event) && pass;
|
};
|
/**
|
* Handle pointer down events.
|
* @param {import("ol/MapBrowserEvent.js").default} event Event.
|
* @return {boolean} If the event was consumed.
|
*/
|
Draw.prototype.handleDownEvent = function (event) {
|
// console.log(event.coordinate_, 'handleDownEvent')
|
this.shouldHandle_ = !this.freehand_;
|
if (this.freehand_) {
|
this.downPx_ = event.pixel;
|
if (!this.finishCoordinate_) {
|
this.startDrawing_(event.coordinate);
|
}
|
return true;
|
} else if (this.condition_(event)) {
|
this.lastDragTime_ = Date.now();
|
this.downTimeout_ = setTimeout(
|
function () {
|
this.handlePointerMove_(
|
new MapBrowserEvent(
|
MapBrowserEventType.POINTERMOVE,
|
event.map,
|
event.originalEvent,
|
false,
|
event.frameState
|
)
|
);
|
}.bind(this),
|
this.dragVertexDelay_
|
);
|
this.downPx_ = event.pixel;
|
return true;
|
} else {
|
this.lastDragTime_ = undefined;
|
return false;
|
}
|
};
|
/**
|
* Handle pointer up events.
|
* @param {import("ol/MapBrowserEvent.js").default} event Event.
|
* @return {boolean} If the event was consumed.
|
*/
|
Draw.prototype.handleUpEvent = function (event) {
|
// console.log(event.coordinate_, 'handleUpEvent')//获取坐标点
|
if (this.isPoint) {
|
this.coordinateOverPoint(event);
|
this.finishDrawing();
|
return;
|
}
|
var pass = true;
|
if (this.getPointerCount() === 0) {
|
if (this.downTimeout_) {
|
clearTimeout(this.downTimeout_);
|
this.downTimeout_ = undefined;
|
}
|
this.handlePointerMove_(event);
|
if (this.shouldHandle_) {
|
var startingToDraw = !this.finishCoordinate_;
|
if (startingToDraw) {
|
//开始后抬起
|
// this.coordinateOverPoint(event);
|
this.coordinate(event);
|
this.startDrawing_(event.coordinate);
|
}
|
if (!startingToDraw && this.freehand_) {
|
this.finishDrawing();
|
} else if (
|
!this.freehand_ &&
|
(!startingToDraw || this.mode_ === Mode.POINT)
|
) {
|
//选择后抬起
|
this.coordinate(event);
|
if (this.atFinish_(event.pixel)) {
|
//结束绘画
|
this.coordinateOver("结束");
|
if (this.finishCondition_(event)) {
|
this.finishDrawing();
|
}
|
} else {
|
this.addToDrawing_(event.coordinate);
|
}
|
}
|
pass = false;
|
} else if (this.freehand_) {
|
this.abortDrawing();
|
}
|
}
|
if (!pass && this.stopClick_) {
|
event.preventDefault();
|
}
|
return pass;
|
};
|
// Draw.prototype.getCoordinate = function (fn) {
|
// this.coordinate = fn;
|
// console.log(this.coordinate)
|
// }
|
/**
|
* Handle move events.
|
* @param {import("ol/MapBrowserEvent.js").default} event A move event.
|
* @private
|
*/
|
Draw.prototype.handlePointerMove_ = function (event) {
|
this.pointerType_ = event.originalEvent.pointerType;
|
if (
|
this.downPx_ &&
|
((!this.freehand_ && this.shouldHandle_) ||
|
(this.freehand_ && !this.shouldHandle_))
|
) {
|
var downPx = this.downPx_;
|
var clickPx = event.pixel;
|
var dx = downPx[0] - clickPx[0];
|
var dy = downPx[1] - clickPx[1];
|
var squaredDistance = dx * dx + dy * dy;
|
this.shouldHandle_ = this.freehand_
|
? squaredDistance > this.squaredClickTolerance_
|
: squaredDistance <= this.squaredClickTolerance_;
|
if (!this.shouldHandle_) {
|
return;
|
}
|
}
|
if (this.finishCoordinate_) {
|
this.modifyDrawing_(event.coordinate);
|
} else {
|
this.createOrUpdateSketchPoint_(event.coordinate.slice());
|
}
|
};
|
/**
|
* Determine if an event is within the snapping tolerance of the start coord.
|
* @param {import("ol/pixel.js").Pixel} pixel Pixel.
|
* @return {boolean} The event is within the snapping tolerance of the start.
|
* @private
|
*/
|
Draw.prototype.atFinish_ = function (pixel) {
|
// console.log(pixel, 879789)
|
var at = false;
|
if (this.sketchFeature_) {
|
var potentiallyDone = false;
|
var potentiallyFinishCoordinates = [this.finishCoordinate_];
|
var mode = this.mode_;
|
if (mode === Mode.POINT) {
|
at = true;
|
} else if (mode === Mode.CIRCLE) {
|
at = this.sketchCoords_.length === 2;
|
} else if (mode === Mode.LINE_STRING) {
|
potentiallyDone = this.sketchCoords_.length > this.minPoints_;
|
} else if (mode === Mode.POLYGON) {
|
var sketchCoords = /** @type {PolyCoordType} */ (this.sketchCoords_);
|
potentiallyDone = sketchCoords[0].length > this.minPoints_;
|
potentiallyFinishCoordinates = [
|
sketchCoords[0][0],
|
sketchCoords[0][sketchCoords[0].length - 2],
|
];
|
}
|
if (potentiallyDone) {
|
var map = this.getMap();
|
for (var i = 0, ii = potentiallyFinishCoordinates.length; i < ii; i++) {
|
var finishCoordinate = potentiallyFinishCoordinates[i];
|
var finishPixel = map.getPixelFromCoordinate(finishCoordinate);
|
var dx = pixel[0] - finishPixel[0];
|
var dy = pixel[1] - finishPixel[1];
|
var snapTolerance = this.freehand_ ? 1 : this.snapTolerance_;
|
at = Math.sqrt(dx * dx + dy * dy) <= snapTolerance;
|
if (at) {
|
this.finishCoordinate_ = finishCoordinate;
|
break;
|
}
|
}
|
}
|
}
|
return at;
|
};
|
/**
|
* @param {import("ol/coordinate").Coordinate} coordinates Coordinate.
|
* @private
|
*/
|
Draw.prototype.createOrUpdateSketchPoint_ = function (coordinates) {
|
if (!this.sketchPoint_) {
|
this.sketchPoint_ = new Feature(new Point(coordinates));
|
this.updateSketchFeatures_();
|
} else {
|
var sketchPointGeom = this.sketchPoint_.getGeometry();
|
sketchPointGeom.setCoordinates(coordinates);
|
}
|
};
|
/**
|
* @param {import("ol/geom/Polygon.js").default} geometry Polygon geometry.
|
* @private
|
*/
|
Draw.prototype.createOrUpdateCustomSketchLine_ = function (geometry) {
|
if (!this.sketchLine_) {
|
this.sketchLine_ = new Feature();
|
}
|
var ring = geometry.getLinearRing(0);
|
var sketchLineGeom = this.sketchLine_.getGeometry();
|
if (!sketchLineGeom) {
|
sketchLineGeom = new LineString(
|
ring.getFlatCoordinates(),
|
ring.getLayout()
|
);
|
this.sketchLine_.setGeometry(sketchLineGeom);
|
} else {
|
sketchLineGeom.setFlatCoordinates(
|
ring.getLayout(),
|
ring.getFlatCoordinates()
|
);
|
sketchLineGeom.changed();
|
}
|
};
|
/**
|
* Start the drawing.
|
* @param {import("ol/coordinate.js").Coordinate} start Start coordinate.
|
* @private
|
*/
|
Draw.prototype.startDrawing_ = function (start) {
|
if (this.overDraw) {
|
return;
|
}
|
var projection = this.getMap().getView().getProjection();
|
this.finishCoordinate_ = start;
|
if (this.mode_ === Mode.POINT) {
|
this.sketchCoords_ = start.slice();
|
} else if (this.mode_ === Mode.POLYGON) {
|
this.sketchCoords_ = [[start.slice(), start.slice()]];
|
this.sketchLineCoords_ = this.sketchCoords_[0];
|
} else {
|
this.sketchCoords_ = [start.slice(), start.slice()];
|
}
|
if (this.sketchLineCoords_) {
|
this.sketchLine_ = new Feature(new LineString(this.sketchLineCoords_));
|
}
|
var geometry = this.geometryFunction_(
|
this.sketchCoords_,
|
undefined,
|
projection
|
);
|
this.sketchFeature_ = new Feature();
|
if (this.geometryName_) {
|
this.sketchFeature_.setGeometryName(this.geometryName_);
|
}
|
this.sketchFeature_.setGeometry(geometry);
|
this.updateSketchFeatures_();
|
this.dispatchEvent(
|
new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_)
|
);
|
};
|
/**
|
* Modify the drawing.
|
* @param {import("ol/coordinate.js").Coordinate} coordinate Coordinate.
|
* @private
|
*/
|
Draw.prototype.modifyDrawing_ = function (coordinate) {
|
var map = this.getMap();
|
var geometry = this.sketchFeature_.getGeometry();
|
var projection = map.getView().getProjection();
|
var coordinates, last;
|
if (this.mode_ === Mode.POINT) {
|
last = this.sketchCoords_;
|
} else if (this.mode_ === Mode.POLYGON) {
|
coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];
|
last = coordinates[coordinates.length - 1];
|
if (this.atFinish_(map.getPixelFromCoordinate(coordinate))) {
|
// snap to finish
|
coordinate = this.finishCoordinate_.slice();
|
}
|
} else {
|
coordinates = this.sketchCoords_;
|
last = coordinates[coordinates.length - 1];
|
}
|
last[0] = coordinate[0];
|
last[1] = coordinate[1];
|
this.geometryFunction_(
|
/** @type {!LineCoordType} */ (this.sketchCoords_),
|
geometry,
|
projection
|
);
|
if (this.sketchPoint_) {
|
var sketchPointGeom = this.sketchPoint_.getGeometry();
|
sketchPointGeom.setCoordinates(coordinate);
|
}
|
if (
|
geometry.getType() === GeometryType.POLYGON &&
|
this.mode_ !== Mode.POLYGON
|
) {
|
this.createOrUpdateCustomSketchLine_(/** @type {Polygon} */ (geometry));
|
} else if (this.sketchLineCoords_) {
|
var sketchLineGeom = this.sketchLine_.getGeometry();
|
sketchLineGeom.setCoordinates(this.sketchLineCoords_);
|
}
|
this.updateSketchFeatures_();
|
};
|
/**
|
* Add a new coordinate to the drawing.
|
* @param {!PointCoordType} coordinate Coordinate
|
* @private
|
*/
|
Draw.prototype.addToDrawing_ = function (coordinate) {
|
var geometry = this.sketchFeature_.getGeometry();
|
var projection = this.getMap().getView().getProjection();
|
var done;
|
var coordinates;
|
var mode = this.mode_;
|
if (mode === Mode.LINE_STRING || mode === Mode.CIRCLE) {
|
this.finishCoordinate_ = coordinate.slice();
|
coordinates = /** @type {LineCoordType} */ (this.sketchCoords_);
|
if (coordinates.length >= this.maxPoints_) {
|
if (this.freehand_) {
|
coordinates.pop();
|
} else {
|
done = true;
|
}
|
}
|
coordinates.push(coordinate.slice());
|
this.geometryFunction_(coordinates, geometry, projection);
|
} else if (mode === Mode.POLYGON) {
|
coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];
|
if (coordinates.length >= this.maxPoints_) {
|
if (this.freehand_) {
|
coordinates.pop();
|
} else {
|
done = true;
|
}
|
}
|
coordinates.push(coordinate.slice());
|
if (done) {
|
this.finishCoordinate_ = coordinates[0];
|
}
|
this.geometryFunction_(this.sketchCoords_, geometry, projection);
|
}
|
this.createOrUpdateSketchPoint_(coordinate.slice());
|
this.updateSketchFeatures_();
|
if (done) {
|
this.finishDrawing();
|
}
|
};
|
/**
|
* Remove last point of the feature currently being drawn. Does not do anything when
|
* drawing POINT or MULTI_POINT geometries.
|
* @api
|
*/
|
Draw.prototype.removeLastPoint = function () {
|
if (!this.sketchFeature_) {
|
return;
|
}
|
var geometry = this.sketchFeature_.getGeometry();
|
var projection = this.getMap().getView().getProjection();
|
var coordinates;
|
var mode = this.mode_;
|
if (mode === Mode.LINE_STRING || mode === Mode.CIRCLE) {
|
coordinates = /** @type {LineCoordType} */ (this.sketchCoords_);
|
coordinates.splice(-2, 1);
|
if (coordinates.length >= 2) {
|
this.finishCoordinate_ = coordinates[coordinates.length - 2].slice();
|
var finishCoordinate = this.finishCoordinate_.slice();
|
coordinates[coordinates.length - 1] = finishCoordinate;
|
this.createOrUpdateSketchPoint_(finishCoordinate);
|
}
|
this.geometryFunction_(coordinates, geometry, projection);
|
if (geometry.getType() === GeometryType.POLYGON && this.sketchLine_) {
|
this.createOrUpdateCustomSketchLine_(/** @type {Polygon} */ (geometry));
|
}
|
} else if (mode === Mode.POLYGON) {
|
coordinates = /** @type {PolyCoordType} */ (this.sketchCoords_)[0];
|
coordinates.splice(-2, 1);
|
var sketchLineGeom = this.sketchLine_.getGeometry();
|
if (coordinates.length >= 2) {
|
var finishCoordinate = coordinates[coordinates.length - 2].slice();
|
coordinates[coordinates.length - 1] = finishCoordinate;
|
this.createOrUpdateSketchPoint_(finishCoordinate);
|
}
|
sketchLineGeom.setCoordinates(coordinates);
|
this.geometryFunction_(this.sketchCoords_, geometry, projection);
|
}
|
if (coordinates.length === 1) {
|
this.abortDrawing();
|
}
|
this.updateSketchFeatures_();
|
};
|
/**
|
* Stop drawing and add the sketch feature to the target layer.
|
* The {@link module:ol/interaction/Draw~DrawEventType.DRAWEND} event is
|
* dispatched before inserting the feature.
|
* @api
|
*/
|
Draw.prototype.finishDrawing = function () {
|
// console.log("finishDrawing")
|
var sketchFeature = this.abortDrawing_();
|
if (!sketchFeature) {
|
return;
|
}
|
var coordinates = this.sketchCoords_;
|
var geometry = sketchFeature.getGeometry();
|
var projection = this.getMap().getView().getProjection();
|
if (this.mode_ === Mode.LINE_STRING) {
|
// remove the redundant last point
|
coordinates.pop();
|
this.geometryFunction_(coordinates, geometry, projection);
|
} else if (this.mode_ === Mode.POLYGON) {
|
// remove the redundant last point in ring
|
/** @type {PolyCoordType} */ (coordinates)[0].pop();
|
this.geometryFunction_(coordinates, geometry, projection);
|
coordinates = geometry.getCoordinates();
|
}
|
// cast multi-part geometries
|
if (this.type_ === GeometryType.MULTI_POINT) {
|
sketchFeature.setGeometry(
|
new MultiPoint([/** @type {PointCoordType} */ (coordinates)])
|
);
|
} else if (this.type_ === GeometryType.MULTI_LINE_STRING) {
|
sketchFeature.setGeometry(
|
new MultiLineString([/** @type {LineCoordType} */ (coordinates)])
|
);
|
} else if (this.type_ === GeometryType.MULTI_POLYGON) {
|
sketchFeature.setGeometry(
|
new MultiPolygon([/** @type {PolyCoordType} */ (coordinates)])
|
);
|
}
|
// First dispatch event to allow full set up of feature
|
this.dispatchEvent(new DrawEvent(DrawEventType.DRAWEND, sketchFeature));
|
// Then insert feature
|
if (this.features_) {
|
this.features_.push(sketchFeature);
|
}
|
if (this.source_) {
|
this.source_.addFeature(sketchFeature);
|
}
|
};
|
/**
|
* Stop drawing without adding the sketch feature to the target layer.
|
* @return {Feature} The sketch feature (or null if none).
|
* @private
|
*/
|
Draw.prototype.abortDrawing_ = function () {
|
this.finishCoordinate_ = null;
|
var sketchFeature = this.sketchFeature_;
|
this.sketchFeature_ = null;
|
this.sketchPoint_ = null;
|
this.sketchLine_ = null;
|
this.overlay_.getSource().clear(true);
|
return sketchFeature;
|
};
|
/**
|
* Stop drawing without adding the sketch feature to the target layer.
|
* @api
|
*/
|
Draw.prototype.abortDrawing = function () {
|
var sketchFeature = this.abortDrawing_();
|
if (sketchFeature) {
|
this.dispatchEvent(new DrawEvent(DrawEventType.DRAWABORT, sketchFeature));
|
}
|
};
|
/**
|
* Append coordinates to the end of the geometry that is currently being drawn.
|
* This can be used when drawing LineStrings or Polygons. Coordinates will
|
* either be appended to the current LineString or the outer ring of the current
|
* Polygon. If no geometry is being drawn, a new one will be created.
|
* @param {!LineCoordType} coordinates Linear coordinates to be appended to
|
* the coordinate array.
|
* @api
|
*/
|
Draw.prototype.appendCoordinates = function (coordinates) {
|
var mode = this.mode_;
|
var newDrawing = !this.sketchFeature_;
|
if (newDrawing) {
|
this.startDrawing_(coordinates[0]);
|
}
|
/** @type {LineCoordType} */
|
var sketchCoords;
|
if (mode === Mode.LINE_STRING || mode === Mode.CIRCLE) {
|
sketchCoords = /** @type {LineCoordType} */ (this.sketchCoords_);
|
} else if (mode === Mode.POLYGON) {
|
sketchCoords =
|
this.sketchCoords_ && this.sketchCoords_.length
|
? /** @type {PolyCoordType} */ (this.sketchCoords_)[0]
|
: [];
|
} else {
|
return;
|
}
|
if (newDrawing) {
|
sketchCoords.shift();
|
}
|
// Remove last coordinate from sketch drawing (this coordinate follows cursor position)
|
sketchCoords.pop();
|
// Append coordinate list
|
for (var i = 0; i < coordinates.length; i++) {
|
this.addToDrawing_(coordinates[i]);
|
}
|
var ending = coordinates[coordinates.length - 1];
|
// Duplicate last coordinate for sketch drawing (cursor position)
|
this.addToDrawing_(ending);
|
this.modifyDrawing_(ending);
|
};
|
/**
|
* Initiate draw mode by starting from an existing geometry which will
|
* receive new additional points. This only works on features with
|
* `LineString` geometries, where the interaction will extend lines by adding
|
* points to the end of the coordinates array.
|
* This will change the original feature, instead of drawing a copy.
|
*
|
* The function will dispatch a `drawstart` event.
|
*
|
* @param {!Feature<LineString>} feature Feature to be extended.
|
* @api
|
*/
|
Draw.prototype.extend = function (feature) {
|
var geometry = feature.getGeometry();
|
var lineString = geometry;
|
this.sketchFeature_ = feature;
|
this.sketchCoords_ = lineString.getCoordinates();
|
var last = this.sketchCoords_[this.sketchCoords_.length - 1];
|
this.finishCoordinate_ = last.slice();
|
this.sketchCoords_.push(last.slice());
|
this.sketchPoint_ = new Feature(new Point(last));
|
this.updateSketchFeatures_();
|
this.dispatchEvent(
|
new DrawEvent(DrawEventType.DRAWSTART, this.sketchFeature_)
|
);
|
};
|
/**
|
* Redraw the sketch features.
|
* @private
|
*/
|
Draw.prototype.updateSketchFeatures_ = function () {
|
var sketchFeatures = [];
|
if (this.sketchFeature_) {
|
sketchFeatures.push(this.sketchFeature_);
|
}
|
if (this.sketchLine_) {
|
sketchFeatures.push(this.sketchLine_);
|
}
|
if (this.sketchPoint_) {
|
sketchFeatures.push(this.sketchPoint_);
|
}
|
var overlaySource = this.overlay_.getSource();
|
overlaySource.clear(true);
|
overlaySource.addFeatures(sketchFeatures);
|
};
|
/**
|
* @private
|
*/
|
Draw.prototype.updateState_ = function () {
|
var map = this.getMap();
|
var active = this.getActive();
|
if (!map || !active) {
|
this.abortDrawing();
|
}
|
this.overlay_.setMap(active ? map : null);
|
};
|
return Draw;
|
})(PointerInteraction);
|
/**
|
* @return {import("ol/style/Style.js").StyleFunction} Styles.
|
*/
|
function getDefaultStyleFunction() {
|
var styles = createEditingStyle();
|
return function (feature, resolution) {
|
return styles[feature.getGeometry().getType()];
|
};
|
}
|
/**
|
* Create a `geometryFunction` for `type: 'Circle'` that will create a regular
|
* polygon with a user specified number of sides and start angle instead of a
|
* `import("ol/geom/Circle.js").Circle` geometry.
|
* @param {number} [opt_sides] Number of sides of the regular polygon.
|
* Default is 32.
|
* @param {number} [opt_angle] Angle of the first point in counter-clockwise
|
* radians. 0 means East.
|
* Default is the angle defined by the heading from the center of the
|
* regular polygon to the current pointer position.
|
* @return {GeometryFunction} Function that draws a polygon.
|
* @api
|
*/
|
export function createRegularPolygon(opt_sides, opt_angle) {
|
return function (coordinates, opt_geometry, projection) {
|
var center = fromUserCoordinate(
|
/** @type {LineCoordType} */ (coordinates)[0],
|
projection
|
);
|
var end = fromUserCoordinate(
|
/** @type {LineCoordType} */ (coordinates)[coordinates.length - 1],
|
projection
|
);
|
var radius = Math.sqrt(squaredCoordinateDistance(center, end));
|
var geometry = opt_geometry
|
? /** @type {Polygon} */ (opt_geometry)
|
: fromCircle(new Circle(center), opt_sides);
|
var angle = opt_angle;
|
if (!opt_angle && opt_angle !== 0) {
|
var x = end[0] - center[0];
|
var y = end[1] - center[1];
|
angle = Math.atan2(y, x);
|
}
|
makeRegular(geometry, center, radius, angle);
|
var userProjection = getUserProjection();
|
if (userProjection) {
|
geometry.transform(projection, userProjection);
|
}
|
return geometry;
|
};
|
}
|
/**
|
* Create a `geometryFunction` that will create a box-shaped polygon (aligned
|
* with the coordinate system axes). Use this with the draw interaction and
|
* `type: 'Circle'` to return a box instead of a circle geometry.
|
* @return {GeometryFunction} Function that draws a box-shaped polygon.
|
* @api
|
*/
|
export function createBox() {
|
return function (coordinates, opt_geometry, projection) {
|
var extent = boundingExtent(
|
/** @type {LineCoordType} */ ([
|
coordinates[0],
|
coordinates[coordinates.length - 1],
|
]).map(function (coordinate) {
|
return fromUserCoordinate(coordinate, projection);
|
})
|
);
|
var boxCoordinates = [
|
[
|
getBottomLeft(extent),
|
getBottomRight(extent),
|
getTopRight(extent),
|
getTopLeft(extent),
|
getBottomLeft(extent),
|
],
|
];
|
var geometry = opt_geometry;
|
if (geometry) {
|
geometry.setCoordinates(boxCoordinates);
|
} else {
|
geometry = new Polygon(boxCoordinates);
|
}
|
var userProjection = getUserProjection();
|
if (userProjection) {
|
geometry.transform(projection, userProjection);
|
}
|
return geometry;
|
};
|
}
|
/**
|
* Get the drawing mode. The mode for multi-part geometries is the same as for
|
* their single-part cousins.
|
* @param {import("ol/geom/GeometryType.js").default} type Geometry type.
|
* @return {Mode} Drawing mode.
|
*/
|
function getMode(type) {
|
switch (type) {
|
case GeometryType.POINT:
|
case GeometryType.MULTI_POINT:
|
return Mode.POINT;
|
case GeometryType.LINE_STRING:
|
case GeometryType.MULTI_LINE_STRING:
|
return Mode.LINE_STRING;
|
case GeometryType.POLYGON:
|
case GeometryType.MULTI_POLYGON:
|
return Mode.POLYGON;
|
case GeometryType.CIRCLE:
|
return Mode.CIRCLE;
|
default:
|
throw new Error("Invalid type: " + type);
|
}
|
}
|
export default Draw;
|
//# sourceMappingURL=Draw.js.map
|
