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View / add adjust* methods to manipulate the view more easily

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API changes:
* (breaking) the `rotate` method is gone
* the `adjustRotation`, `adjustResolution` and `adjustZoom` methods are now
  available and allow using an anchor.

This means interactions do not have to do the anchor computation themselves
and this also fix anchor computation when constraints must be applied.
This commit is contained in:
Olivier Guyot
2019-01-29 12:13:27 +01:00
parent b5273babb5
commit e023c144bb
10 changed files with 237 additions and 284 deletions
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src/ol/interaction/DragRotateAndZoom.js
+4 -6
View File
@@ -4,7 +4,6 @@
import {disable} from '../rotationconstraint.js';
import ViewHint from '../ViewHint.js';
import {shiftKeyOnly, mouseOnly} from '../events/condition.js';
import {rotate, zoom} from './Interaction.js';
import PointerInteraction from './Pointer.js';
@@ -88,14 +87,13 @@ class DragRotateAndZoom extends PointerInteraction {
const theta = Math.atan2(deltaY, deltaX);
const magnitude = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
const view = map.getView();
if (view.getConstraints().rotation !== disable && this.lastAngle_ !== undefined) {
const angleDelta = theta - this.lastAngle_;
rotate(view, view.getRotation() - angleDelta);
if (this.lastAngle_ !== undefined) {
const angleDelta = this.lastAngle_ - theta;
view.adjustRotation(angleDelta);
}
this.lastAngle_ = theta;
if (this.lastMagnitude_ !== undefined) {
const resolution = this.lastMagnitude_ * (view.getResolution() / magnitude);
zoom(view, resolution);
view.adjustResolution(this.lastMagnitude_ / magnitude);
}
if (this.lastMagnitude_ !== undefined) {
this.lastScaleDelta_ = this.lastMagnitude_ / magnitude;