| | |
|---|
| | | this.handler.setInputAction(movement => this.handleMouseMove(movement), Cesium.ScreenSpaceEventType.MOUSE_MOVE) |
|---|
| | | this.drawStep = 0 |
|---|
| | | this.isCompleted = false |
|---|
| | | this.tooltip.show('单击设置中心点', { x: 0, y: 0 }) |
|---|
| | | this.tooltip.hide() |
|---|
| | | } |
|---|
| | | |
|---|
| | | handleLeftClick(click) { |
|---|
| | |
|---|
| | | |
|---|
| | | handleMouseMove(movement) { |
|---|
| | | if (this.isCompleted) return |
|---|
| | | this.tooltip.move(movement.endPosition) |
|---|
| | | const tipText = this.drawStep === 0 |
|---|
| | | ? '单击设置中心点' |
|---|
| | | : this.drawStep === 1 |
|---|
| | | ? '单击设置长轴' |
|---|
| | | : '单击设置短轴' |
|---|
| | | if (!this.tooltip?.isVisible) { |
|---|
| | | this.tooltip.show(tipText, movement.endPosition) |
|---|
| | | } else { |
|---|
| | | this.tooltip.show(tipText) |
|---|
| | | this.tooltip.move(movement.endPosition) |
|---|
| | | } |
|---|
| | | if (!this.isDrawing) return |
|---|
| | | const position = this.getPositionFromScreen(movement.endPosition) |
|---|
| | | if (!position) return |
|---|
| | |
|---|
| | | |
|---|
| | | getPositionFromScreen(screenPosition) { |
|---|
| | | const scene = this.viewer.scene |
|---|
| | | const cartesian = scene.pickPosition(screenPosition) |
|---|
| | | const ray = scene.camera.getPickRay(screenPosition) |
|---|
| | | const cartesian = ray ? scene.globe.pick(ray, scene) : null |
|---|
| | | if (cartesian) return cartesian |
|---|
| | | return scene.camera.pickEllipsoid(screenPosition, scene.globe.ellipsoid) |
|---|
| | | } |
|---|
