Onscreen Text overlapping on each other instead of replacing

Scripting Issues
1

I want to see the current co-ordinates using current coordinates so i am using the following code but the text is overlapping so how do i coorect this?

Code

from direct.showbase.ShowBase import ShowBase
from direct.gui.OnscreenText import OnscreenText
from panda3d.core import *

class example(ShowBase):
    def __init__(self):
        super().__init__()
        self.pd = self.loader.loadModel("models\panda")
        self.pd.setScale(0.05)
        self.pd.reparentTo(render)
        self.x = 0
        self.z = 0
        self.i = 0
        self.taskMgr.add(self.moving, "moving")

    def moving(self, task):
        dt = globalClock.getFrameTime()
        self.pd.setPos(self.x+self.i, 0, self.z+self.i)
        textt = str(self.pd.getPos())
        self.textObject = OnscreenText(text=textt, pos=(0, -0.8), scale=0.07, fg=(1, 0.5, 0.5, 1), align=TextNode.ACenter, mayChange=1)
        self.i += 0.01
        return task.cont

if __name__ == '__main__':
    viz = example()
    viz.run()

Screenshot

Here is the screenshot:

image
image802Ă—639 5.24 KB

How do i correct it?

2

Call destroy() on the previous text object before creating the new one.

3

But then the text is not displayed at all.

Screenshot

image
image802Ă—639 2.65 KB

4

What I’d suggest is that, instead of creating a new OnscreenText for each update, you create just one during initialisation, and then alter its text as called for. Something like this (using a simplified example for convenience and clarity):

    def __init__(self):
        # ... Other initialisation here ...
        
        # Create our OnscreenText object:
        self.coordinateDisplay = OnscreenText(text = "",
                                              mayChange = True,
                                              scale = 0.05)

        # Start up our task:
        self.taskMgr.add(self.updateCoordDisplay, "update coord display")

    def updateCoordDisplay(self, task):
        # Get our new text...
        coordText = str(self.pd.getPos())
        # ... And set our OnscreenText object to display it:
        self.coordinateDisplay.setText(coordText)

        return task.cont
5

Where did you place the destroy line then?

6

Before the self.i line

7

Thanks Got it!!

1 Like
8

That would delete the new one, not the old one, I believe.

If you’d placed the “destroy” line instead before you created the new OnscreenText, then rdb’s suggestion may well have worked.

I’m glad of it! :slight_smile:

9

That makes sense!!! Thanks for this!!

1 Like