DawSegments not showing line

[Meninstick]

Hi,

I'm trying to visualize certain points on a tracked vehicle at runtime. DrawSegment is not working for me, maybe I've misunderstood something. Ive tried at various locations but nothing shows up.

I would be really thankful for any guidance.

auto vis = chrono_types::make_shared<ChTrackedVehicleVisualSystemIrrlicht>();

.

.

.

.

 while (vis->Run()) {

 //irrlicht::tools::drawSegment(std::static_pointer_cast<irrlicht::ChVisualSystemIrrlicht>(vis).get(), vehicle.GetChassis()->GetDriverPos(), vehicle.GetChassis()->GetDriverPos() + ChVector<>(0, 0, 10));

irrlicht::tools::drawSegment(vis.get(), vehicle.GetChassis()->GetDriverPos(), vehicle.GetChassis()->GetDriverPos() + ChVector<>(0, 0, 10));

[Radu Serban]

Hi Meninstick,

 

I cannot reproduce this issue. Are you sure you are making the call to drawSegment() *between* the calls to BeginScene() and EndScene()?

Also, use the 2^nd form you have below. Casting to ChVisualSystemIrrlicht will likely not work (because of some multiple inheritance for the vehicle visualization systems).

 

--Radu

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[Meninstick]

Hi,

I didn't make the call between BeginScene and EndScene, it is working now but only when I make the call AFTER vis->Render().

Thank you very much for a quick and helpful answer!

[Radu Serban]

I have no problem if I add the following 2 lines:

            auto vis_irr = std::static_pointer_cast<ChTrackedVehicleVisualSystemIrrlicht>(vis);

            irrlicht::tools::drawSegment(vis_irr.get(), vehicle.GetChassis()->GetDriverPos(),

                                         vehicle.GetChassis()->GetDriverPos() + ChVector<>(0, 0, 10));

after the call to vis->Render() and before the call to vis->EndScene() in demo_VEH_M113.cpp. 

 

Could you please try that?  If that doesn’t work for you, please provide more information (Chrono version, Irrlicht version, OS, compiler, etc)

 

--Radu

 

From: 'Meninstick' via ProjectChrono <projec...@googlegroups.com>
Sent: Friday, October 6, 2023 9:46 AM
To: ProjectChrono <projec...@googlegroups.com>
Subject: Re: [chrono] DawSegments not showing line

 

Hi,

I didn't make the call between BeginScene and EndScene, it is working now but only when I make the call before vis->Render().

 

Thank you very much for a quick and helpful answer!

torsdag 5 oktober 2023 kl. 18:43:02 UTC+2 skrev Radu Serban:

To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/277717d7-d762-4232-90c1-b6a00fc589f2n%40googlegroups.com.

[Meninstick]

Hi, I meant to write that it only works if I make the call after Render(), my bad!