[Solved] Mimic FPS info on FullScreen

[DorinDXN]

Hello,
Nice to meet you
First post here.

I want to display some info on FullScreen, via Python, just like the FPS does,
info which will stay and will not rotate with camera.

I didn't had success so far, but most likely I don't know where to look for examples.
I'll appreciate any help.

So far I used Annotation, which is great and I like it, except it rotates with camera
so at each new view I had to re-position it.

cheers,
Dorin

[chrisb]

Hi and welcome to the forum!

Please explain what FPS is. I know it as FramesPerSecond, which makes no sense here.

[DorinDXN]

Hi, thanks for quick reply

In FreeCAD, when at Preferences/3D View
[x] Show counter of frames per second
is enabled
In the bottom/left corner of Full Screen the FramesPerSecond info is shown
In the same way I want to show other properties, not FPS, say, the object rotation instead of FPS

I guess, must be a way, to display some info in Full Screen, info which will stay in that position regardless of camera rotation.

cheers,
Dorin

[DorinDXN]

Maybe if I'll add a video for better understanding.

phpBB [video]

In this one I used annotation to display the rotation of the cylinder.
The annotation is fine except when I rotate the camera, the annotation is moving along,
I need for that info to stay in that place of the Full Screen regardless of camera position.

I used this code for this video.

Code: Select all

from PySide import QtCore
import FreeCADGui as Gui

i=0
def update():
	global i
	FreeCAD.ActiveDocument.getObject("Cylinder").Placement = App.Placement(App.Vector(0,-10,-10),App.Rotation(App.Vector(0,1,0),-i), App.Vector(0,0,10))
	App.ActiveDocument.getObject("Annotation").LabelText=[str(i)+"°"]
	Gui.updateGui()
	i+=0.1
	if i>360:
		i=0

timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(1)

So what to use instead of annotation, I tried without success to have the annotation fixed, I guess I need a different approach.

cheers,
Dorin

[Chris_G]

Here is a possible solution, using SuperImposition of coin3d :

Code: Select all

from pivy import coin

textSep = coin.SoSeparator()
cam = coin.SoOrthographicCamera()
cam.aspectRatio = 1
cam.viewportMapping = coin.SoCamera.LEAVE_ALONE

trans = coin.SoTranslation()
trans.translation = (-0.98, 0.90, 0)

myFont = coin.SoFont()
myFont.name = "FreeMono,FreeSans,sans"
size = 24
myFont.size.setValue(size)
SoText2 = coin.SoText2()
SoText2.string = "Hello World"
color = coin.SoBaseColor()
color.rgb = (0, 0, 0)

textSep.addChild(cam)
textSep.addChild(trans)
textSep.addChild(color)
textSep.addChild(myFont)
textSep.addChild(SoText2)

activeDoc = FreeCADGui.ActiveDocument
view = activeDoc.ActiveView
sg = view.getSceneGraph()
viewer = view.getViewer()
render = viewer.getSoRenderManager()
sup = render.addSuperimposition(textSep)

# remove the Superimposition layer with :
# render.removeSuperimposition(sup)

Here is the coin3d doc : https://coin3d.github.io/Coin/html/annotated.html

[DorinDXN]

Thank you very much!

Solved

phpBB [video]

Code: Select all

from pivy import coin
from PySide import QtCore
import FreeCADGui as Gui


textSep = coin.SoSeparator()
cam = coin.SoOrthographicCamera()
cam.aspectRatio = 1
cam.viewportMapping = coin.SoCamera.LEAVE_ALONE

trans = coin.SoTranslation()
trans.translation = (-0.98, -0.35, 0)

myFont = coin.SoFont()
myFont.name = "Arial"
size = 135
myFont.size.setValue(size)
SoText2 = coin.SoText2()
SoText2.string = "0°"
color = coin.SoBaseColor()
color.rgb = (0, 0, 0)

textSep.addChild(cam)
textSep.addChild(trans)
textSep.addChild(color)
textSep.addChild(myFont)
textSep.addChild(SoText2)

activeDoc = FreeCADGui.ActiveDocument
view = activeDoc.ActiveView
sg = view.getSceneGraph()
viewer = view.getViewer()
render = viewer.getSoRenderManager()
sup = render.addSuperimposition(textSep)


i=0
def update():
	global i
	FreeCAD.ActiveDocument.getObject("Cylinder").Placement = App.Placement(App.Vector(0,-10,-10),App.Rotation(App.Vector(0,1,0),-i), App.Vector(0,0,10))
	SoText2.string=str(i)+"°"
	Gui.updateGui()
	i+=0.1
	if i>360:
		i=0

timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(1)


# remove the Superimposition layer with :
# render.removeSuperimposition(sup)

cheers,
Dorin

[DorinDXN]

One more thing

I thought it will be easy..
how to have a multi-line string

tried

Code: Select all

SoText2.string = "line1\r\nline2"

but it doesn't work

From Coin3D docu
---8<------------------
SoMFString SoText2::string
The set of strings to render. Each string in the multiple value field will be rendered on its own line.
---8<------------------

It looks like a multi-line text needs to be given as a set of strings, but how?

Appreciate any help.

cheers,
Dorin

[Chris_G]

Code: Select all

SoText2.string.setValues(0,3,["Hello", "World", "!!!!"])

Doc : https://coin3d.bitbucket.io/Coin/classS ... addd232008
If you want to reduce the number of items of a multifield node, you may need to reset the field beforehand:

Code: Select all

SoText2.string.setValues(0,0,0)

[DorinDXN]

Again thank you very much!

Makes perfect sense, tested, worked!

BTW, I noticed that after

Code: Select all

render.removeSuperimposition(sup)

it doesn't disappear automatically all the times,

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render.render()

and

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SoText2.string=""
render.render()

seems to help but still are cases when the text stay, though it disappear at mouse click or hover (sometimes).
Tested on single line text only
This is not so important, I'm, maybe, yet to find how to force a redraw after render.remove.

thanks again,
Dorin

L.E.
Just thought, maybe I need to have a delay before render.render(), could be windows message queue issue.

[Chris_G]

Maybe the touch() function of the scenegraph will work better ?

Code: Select all

sg.touch()