hayaqi0504的博客

from qgis.gui import * from PyQt4.QtGui import * from PyQt4.QtCore import * canvas = qgis.utils.iface.mapCanvas() sc = canvas.scene() mx = canvas.extent() anit = QgsTextAnnotationItem(canv

from PyQt4.QtCore import *from PyQt4.QtGui import *from qgis.core import *from qgis.gui import *# создание текстового элемента аннотацииtextItem = QgsTextAnnotationItem( qgis.utils.iface.mapCanva

目的：添加点，动态更新文本标注第一种思路：利用QgsTextAnnotationItem同时标注点与添加文字from PyQt4.QtCore import *from PyQt4.QtGui import *from qgis.core import *from qgis.gui import *textItem = QgsTextAnnotationItem( qgis