2016-11-17 76 views
1
this.drawInteraction = new ol.interaction.Draw({ 
     features: this.sourceFeatures, 
     type: 'Polygon', 
     geometryFunction: (coords, geom) => this.onDrawGeometryFunction(coords, geom) 
    }); 

private onDrawGeometryFunction(coords, geom): void { 
    if (!geom) { 
     geom = new ol.geom.Polygon(null); 
    } 
    if (coords[0].length !== this.coords_length) { 
     //if intersects undo last point 
     if (this.intersectionsExistInPolygon(coords[0])) { 
      this.drawInteraction.removeLastPoint(); 
      return geom; 
     } 
     this.coords_length = coords[0].length;   
    } 
    geom.setCoordinates(coords); 
    return geom; 
} 

我能夠識別交點,直到我點擊起點完成繪製(通過繪製線連接)。有沒有辦法在發生之前聽完抽獎(但不是「抽獎」)?通過移除相交的最後一點來保持繪圖模式有效。如果座標相交,ol3重繪繪製交互模式

回答

0

那麼,我使用[email protected]這個終結條件可以從v3.16.0獲得。所以我不得不更新它只能工作的版本..