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To determine whether the mouse landed on the overlay or the feature w… #15476

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47 changes: 24 additions & 23 deletions src/ol/interaction.js
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@@ -1,26 +1,27 @@
/**
* @module ol/interaction
*/
export {default as DoubleClickZoom} from './interaction/DoubleClickZoom.js';
export {default as DblClickDragZoom} from './interaction/DblClickDragZoom.js';
export {default as DragAndDrop} from './interaction/DragAndDrop.js';
export {default as DragBox} from './interaction/DragBox.js';
export {default as DragPan} from './interaction/DragPan.js';
export {default as DragRotate} from './interaction/DragRotate.js';
export {default as DragRotateAndZoom} from './interaction/DragRotateAndZoom.js';
export {default as DragZoom} from './interaction/DragZoom.js';
export {default as Draw} from './interaction/Draw.js';
export {default as Extent} from './interaction/Extent.js';
export {default as Interaction} from './interaction/Interaction.js';
export {default as KeyboardPan} from './interaction/KeyboardPan.js';
export {default as KeyboardZoom} from './interaction/KeyboardZoom.js';
export {default as Link} from './interaction/Link.js';
export {default as Modify} from './interaction/Modify.js';
export {default as MouseWheelZoom} from './interaction/MouseWheelZoom.js';
export {default as PinchRotate} from './interaction/PinchRotate.js';
export {default as PinchZoom} from './interaction/PinchZoom.js';
export {default as Pointer} from './interaction/Pointer.js';
export {default as Select} from './interaction/Select.js';
export {default as Snap} from './interaction/Snap.js';
export {default as Translate} from './interaction/Translate.js';
export {defaults} from './interaction/defaults.js';
export { default as DoubleClickZoom } from './interaction/DoubleClickZoom.js';
export { default as DblClickDragZoom } from './interaction/DblClickDragZoom.js';
export { default as DragAndDrop } from './interaction/DragAndDrop.js';
export { default as DragBox } from './interaction/DragBox.js';
export { default as DragPan } from './interaction/DragPan.js';
export { default as DragRotate } from './interaction/DragRotate.js';
export { default as DragRotateAndZoom } from './interaction/DragRotateAndZoom.js';
export { default as DragZoom } from './interaction/DragZoom.js';
export { default as Draw } from './interaction/Draw.js';
export { default as Extent } from './interaction/Extent.js';
export { default as Interaction } from './interaction/Interaction.js';
export { default as KeyboardPan } from './interaction/KeyboardPan.js';
export { default as KeyboardZoom } from './interaction/KeyboardZoom.js';
export { default as Link } from './interaction/Link.js';
export { default as Modify } from './interaction/Modify.js';
export { default as MouseWheelZoom } from './interaction/MouseWheelZoom.js';
export { default as PinchRotate } from './interaction/PinchRotate.js';
export { default as PinchZoom } from './interaction/PinchZoom.js';
export { default as Pointer } from './interaction/Pointer.js';
export { default as Select } from './interaction/Select.js';
export { default as Snap } from './interaction/Snap.js';
export { default as Translate } from './interaction/Translate.js';
export { default as SegmentFilter } from './interaction/SegmentFilter.js';
export { defaults } from './interaction/defaults.js';
43 changes: 43 additions & 0 deletions src/ol/interaction/SegmentFilter.js
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@@ -0,0 +1,43 @@
/**
* @module ol/interaction/SegmentFilter
*/
import { distance } from '../coordinate';

/**
* @classdesc
* Recognizes the mouse hover state when the mouse pointer overlaps with a feature or overlay.
* Allows the user to identify the state by hovering over the elements.
* @api
*/
class SegmentFilter {
/**
* Determine if the mouse coordinates fall on the endpoints of a straight line overlay
* @param {import("../coordinate.js").Coordinate} start Segment start coordinate.
* @param {import("../coordinate.js").Coordinate} end Segment end coordinate.
* @param {string} type The type of feature.
* @param {import("../coordinate.js").Coordinate} mousepoint Segment mouse coordinate.
* @param {number} overlayradius
* @return {boolean} `true` if the line segment should be selected, `false` otherwise.
*/
lineFilter(start, end, type, mousepoint, overlayradius) {
if (type === 'MultiLineString' || type === 'LineString') {
const startDistance = distance(mousepoint, start);
const endDistance = distance(mousepoint, end);
if (startDistance < endDistance) {
if (startDistance <= overlayradius) {
return false;
} else {
return true;
}
} else if (startDistance > endDistance) {
if (endDistance <= overlayradius) {
return false;
} else {
return true;
}
}
}
}
}

export default SegmentFilter;