I have a JSON file which contains coordinate list and some other information.
My JSON structure look like this;
"annotations": [
{
"type": "Box",
"color": "red",
"box_top": 406.0,
"box_left": 656.0,
"box_height": 73.0,
"box_width": 40.0
}
],
"annotations": [
{
"type": "Box",
"color": "green",
"box_top": 450.0,
"box_left": 700.0,
"box_height": 95.0,
"box_width": 47.0
}
]
By taking the box values (box_top,box_left,box_height,box_width) I have drawn Rectangle using QGraphicsView and QGraphicsScene. The code is given below;
def load_image(self,image_item):
self.scene = QGraphicsScene(self.centralWidget) # Created a QGraphicsScene
self.pic = QPixmap(str(image_item.text())) # Loaded Image
self.brush = QBrush()
self.pen = QPen(Qt.red)
self.pen.setWidth(2)
self.pixItem = QGraphicsPixmapItem(self.pic)
self.load_view = self.scene.addItem(self.pixItem) # Image Added to Scene
# Opening JSON and fetching data
# …
for rect in json_file['annotations']:
# Taken type and color and stored in variable
self.box_type = rect['type']
self.box_color = rect['color']
# Taken box_top,box_left,box_height,box_width values
self.rect_item = self.scene.addRect(rect['box_top'],rect['box_left'],rect['box_width'],rect['box_length'],self.pen,self.brush) # x,y,w,h
self.rect_item.setFlag(QGraphicsItem.ItemIsSelectable) #Item is Selectable
#self.rect_item.setFlag(QGraphicsItem.ItemIsMovable) # Item is Movable
self.fit_view = self.gView.setScene(self.scene)
self.gView.fitInView(self.pixItem,Qt.KeepAspectRatio)
self.gView.setRenderHint(QPainter.Antialiasing)
self.gView.show()
Now What I want is when I click one box (say which has color red) from the GraphicsScene, I want to print its corresponding type and color. In a simple way, I want to print all data related to that box. A sample images also attached for reference. Note : Image is the output of this program.
Thank you.
