Hi.
I want to use the BillBoard property(ScreenBillBoardStyle) of CustomGraphicsText to create text that always matches the orientation of the screen, but it doesn't work the way I want it to.
If anyone has successfully done this, please advise me. Please give me some advice.
It is hard to understand, but I created the following test code.
# Fusion360API Python script
import traceback
import adsk.fusion
import adsk.core
def run(context):
ui: adsk.core.UserInterface = None
try:
app: adsk.core.Application = adsk.core.Application.get()
ui = app.userInterface
des: adsk.fusion.Design = app.activeProduct
root: adsk.fusion.Component = des.rootComponent
removeCG()
billBoarding = True
testData = [
[
'AB',
adsk.core.Point3D.create(0,0,0),
billBoarding
],
[
'CDE',
adsk.core.Point3D.create(10,20,30),
billBoarding
],
[
'FGHI',
adsk.core.Point3D.create(-30,-20,-10),
billBoarding
]
]
for t, p, b in testData:
initCGtext(root, t, p, b)
except:
if ui:
ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))
def initCGtext(
comp: adsk.fusion.Component,
txt: str,
pnt: adsk.core.Point3D,
isBillBoarding: bool
) -> adsk.fusion.CustomGraphicsText:
vec: adsk.core.Vector3D = pnt.asVector()
mat: adsk.core.Matrix3D = adsk.core.Matrix3D.create()
mat.translation = vec
cgGroup: adsk.fusion.CustomGraphicsGroup = comp.customGraphicsGroups.add()
cgTxt: adsk.fusion.CustomGraphicsText = cgGroup.addText(
txt,
'Arial',
3,
mat)
cgTxt.isBold = True
# cgTxt.isSelectable = False
if isBillBoarding:
billBoard = adsk.fusion.CustomGraphicsBillBoard.create(pnt)
billBoard.billBoardStyle = adsk.fusion.CustomGraphicsBillBoardStyles.ScreenBillBoardStyle
cgTxt.billBoarding = billBoard
# ***confirmation***
skt: adsk.fusion.Sketch = comp.sketches.add(comp.xYConstructionPlane)
skt.name = txt
bBox: adsk.core.BoundingBox3D = cgTxt.boundingBox
oriBBox: adsk.core.OrientedBoundingBox3D = toOriented(bBox)
drawPoint(skt, pnt)
drawPointWHRectangle(skt, pnt, oriBBox.length, oriBBox.width)
drawBBox(comp, bBox, txt)
return cgTxt
def drawBBox(
comp: adsk.fusion.Component,
bBox: adsk.core.BoundingBox3D,
name: str):
oriented = toOriented(bBox)
tmpMgr: adsk.fusion.TemporaryBRepManager = adsk.fusion.TemporaryBRepManager.get()
box: adsk.fusion.BRepBody = tmpMgr.createBox(oriented)
baseFeat : adsk.fusion.BaseFeature = comp.features.baseFeatures.add()
baseFeat.startEdit()
body: adsk.fusion.BRepBody = comp.bRepBodies.add(box, baseFeat)
body.opacity = 0.5
body.name = name
baseFeat.finishEdit()
def toOriented(
bBox: adsk.core.BoundingBox3D) -> adsk.core.OrientedBoundingBox3D:
pMax: adsk.core.Point3D = bBox.maxPoint
pMin: adsk.core.Point3D = bBox.minPoint
center = adsk.core.Point3D.create(
(pMax.x + pMin.x) * 0.5,
(pMax.y + pMin.y) * 0.5,
(pMax.z + pMin.z) * 0.5
)
return adsk.core.OrientedBoundingBox3D.create(
center,
adsk.core.Vector3D.create(1,0,0),
adsk.core.Vector3D.create(0,1,0),
abs(pMax.x - pMin.x),
abs(pMax.y - pMin.y),
abs(pMax.z - pMin.z)
)
def drawPoint(
skt: adsk.fusion.Sketch,
pnt: adsk.core.Point3D):
skt.sketchPoints.add(pnt)
def drawPointWHRectangle(
skt: adsk.fusion.Sketch,
pnt: adsk.core.Point3D,
w: float,
h: float):
p: adsk.core.Point3D = pnt.copy()
p.x += w
p.y += h
skt.sketchCurves.sketchLines.addTwoPointRectangle(pnt, p)
def removeCG():
app: adsk.core.Application = adsk.core.Application.get()
des :adsk.fusion.Design = app.activeProduct
cgs = [cmp.customGraphicsGroups for cmp in des.allComponents]
cgs = [cg for cg in cgs if cg.count > 0]
if len(cgs) < 1: return
for cg in cgs:
gps = [c for c in cg]
gps.reverse()
for gp in gps:
gp.deleteMe()The execution result is as shown here.
・A(sketch point)
The location of the reference when creating CustomGraphicsText.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-F25572F5-ABD7-4322-80FE-5D4AF8E8917B
AnchorPoint for BillBoarding
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-5EA7799D-2419-48A2-81E9-6CB7F9D1CC9F
・B(Sketch Profile)
The square created by the CustomGraphicsText's AnchorPoint+width+height.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-BF25E5D8-ECD4-495A-BC01-804CAB93F5AF
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-17427A1A-F387-42E0-B96E-3C2022F2320A
・C(Surface)
Body created by CustomGraphicsText.boundingBox.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-C09A0588-4CE3-42E9-9588-93FA718D01F0
The one created at the origin (AB) will work as desired.
However, the ones that are far away from the origin (CDE, FGHI) are far away from the AnchorPoint and do not perform the desired motion.
I did a lot of research, but could not find out the cause.
Has anyone used CustomGraphicsText's BillBoard(ScreenBillBoardStyle)?
A few questions about the documentation.
・I think the description of CustomGraphicsGroup.addText is correct "bottom-left".(It's listed in multiple parts.)
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-F25572F5-ABD7-4322-80FE-5D4AF8E8917B
・It seems that the boundingBox property is not positioned correctly.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-C09A0588-4CE3-42E9-9588-93FA718D01F0
Since the Z value of the boundingBox is not "0", I interpret that it is not a result in pixel space.
・I was not sure where to find the "isViewDependent property" mentioned in the AnchorPoint description.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-DA642B2F-0206-40B3-8328-0F54C40BDEA5
・The "CustomGraphicsAnchorPoint object" listed in the CustomGraphicsBillBoard.anchorPoint Property description was not found.
https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-5EA7799D-2419-48A2-81E9-6CB7F9D1CC9F
