Creating a proper f3d file

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Pavel-Jakub Novotný 2022-9-7

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评论： Pavel-Jakub Novotný 2022-9-16

Hi,

I need to upload my model to Matlab in 3D Foundation environment. I need to upload it in f3d format. I created this file format

in Fusion, but Matlab won't open it for me. I get this error: "Not a binary MAT-file. Try load -ASCII to read as text."

When I try to open my model as text, I get this error: "Unable to read file 'robot_sestaven.f3d'. Input must be a MAT-file or

an ASCII file containing numeric data with same number of columns in each row."

Does anyone know how to create the correct f3d format for my model?

Thanks for the advice

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Answer 1

Jan Houska 2022-9-7

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Hi Pavel-Jakub,

the F3D format used by 3D Foundation is not the same format as used in Fusion. This is just a name coincidence. You can import into 3D Foundation from another 3D format (like e.g. FBX, X3D, STL, ...), then save it to the F3D format from 3D Foundation.

Good Luck, Jan

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Pavel-Jakub Novotný 2022-9-12

在 MATLAB Online 中打开

I use this program to load model parts and then save them in f3d format.

MW = F3D.World('WestPoint')
initialize(MW, [80, -80, 80], [0 0 5]);
MW.AngleUnits = 'deg';
Floor = F3D.Geometry.templateFloor(MW.Root, [200 200 0.1]);
Body = addChild(MW.Root,'Body');
load(Body, 'Telo_sestaveno.stl');
Body.Location = [0 0 3];
%% first leg
stLeg_stJoint = addChild(Body,'stLeg_stJoint');
load(stLeg_stJoint,'noha_1_sestava2.stl');
stLeg_stJoint.Location = [8 0 2];
stLeg_stJoint.Rotation = [0 0 0];
stLeg_stJoint.Color = [1 0 0];
stLeg_ndJoint = addChild(stLeg_stJoint,'stLeg_ndJoint');
load(stLeg_ndJoint,'noha_2_sestava.stl');
stLeg_ndJoint.Location = [7.5 0 0];
stLeg_ndJoint.Rotation = [0 -30 0];
stLeg_rdJoint = addChild(stLeg_ndJoint,'stLeg_ndJoint');
load(stLeg_rdJoint,'noha_3_sestava.stl');
stLeg_rdJoint.Location = [7.5 0 0];
stLeg_rdJoint.Rotation = [0 90 0];
stLeg_paw = addChild(stLeg_rdJoint,'stLeg_paw');
load(stLeg_paw,'packa_sestava.stl');
stLeg_paw.Location = [8 0 0.5];
stLeg_paw.Rotation = [0 -60 0];
%% second leg
ndLeg_stJoint = addChild(Body,'ndLeg_stJoint');
load(ndLeg_stJoint,'noha_1_sestava2.stl');
ndLeg_stJoint.Location = [0 8 2];
ndLeg_stJoint.Rotation = [0 0 90];
ndLeg_stJoint.Color = [0 1 0];
ndLeg_ndJoint = addChild(ndLeg_stJoint,'ndLeg_ndJoint');
load(ndLeg_ndJoint,'noha_2_sestava.stl');
ndLeg_ndJoint.Location = [7.5 0 0];
ndLeg_ndJoint.Rotation = [0 -30 0];
ndLeg_rdJoint = addChild(ndLeg_ndJoint,'ndLeg_ndJoint');
load(ndLeg_rdJoint,'noha_3_sestava.stl');
ndLeg_rdJoint.Location = [7.5 0 0];
ndLeg_rdJoint.Rotation = [0 90 0];
ndLeg_paw = addChild(ndLeg_rdJoint,'ndLeg_paw');
load(ndLeg_paw,'packa_sestava.stl');
ndLeg_paw.Location = [8 0 0.5];
ndLeg_paw.Rotation = [0 -60 0];
%% Third leg
rdLeg_stJoint = addChild(Body,'rdLeg_stJoint');
load(rdLeg_stJoint,'noha_1_sestava2.stl');
rdLeg_stJoint.Location = [-8 0 2];
rdLeg_stJoint.Rotation = [0 0 180];
rdLeg_ndJoint = addChild(rdLeg_stJoint,'rdLeg_ndJoint');
load(rdLeg_ndJoint,'noha_2_sestava.stl');
rdLeg_ndJoint.Location = [7.5 0 0];
rdLeg_ndJoint.Rotation = [0 -30 0];
rdLeg_rdJoint = addChild(rdLeg_ndJoint,'rdLeg_ndJoint');
load(rdLeg_rdJoint,'noha_3_sestava.stl');
rdLeg_rdJoint.Location = [7.5 0 0];
rdLeg_rdJoint.Rotation = [0 90 0];
rdLeg_paw = addChild(rdLeg_rdJoint,'rdLeg_paw');
load(rdLeg_paw,'packa_sestava.stl');
rdLeg_paw.Location = [8 0 0.5];
rdLeg_paw.Rotation = [0 -60 0];
%% fourth leg
thLeg_stJoint = addChild(Body,'thLeg_stJoint');
load(thLeg_stJoint,'noha_1_sestava2.stl');
thLeg_stJoint.Location = [0 -8 2];
thLeg_stJoint.Rotation = [0 0 -90];
thLeg_ndJoint = addChild(thLeg_stJoint,'thLeg_ndJoint');
load(thLeg_ndJoint,'noha_2_sestava.stl');
thLeg_ndJoint.Location = [7.5 0 0];
thLeg_ndJoint.Rotation = [0 -30 0];
thLeg_rdJoint = addChild(thLeg_ndJoint,'thLeg_ndJoint');
load(thLeg_rdJoint,'noha_3_sestava.stl');
thLeg_rdJoint.Location = [7.5 0 0];
thLeg_rdJoint.Rotation = [0 90 0];
thLeg_paw = addChild(thLeg_rdJoint,'thLeg_paw');
load(thLeg_paw,'packa_sestava.stl');
thLeg_paw.Location = [8 0 0.5];
thLeg_paw.Rotation = [0 -60 0];
save('robot_sestaven_2.f3d')

I used this program to open the newly created file.

MW = F3D.World('WestPoint');
initialize(MW, [80, -80, 80], [0 0 5]);
%MW.CoordinateSystem = 'unreal';
MW.AngleUnits = 'deg';
VP = MW.Viewports.Main;
VP.Title = 'WestPoint';
Path = fileparts(which(mfilename));
Floor = F3D.Geometry.templateFloor(MW.Root, [200 200 0.1]);
Robot = addChild(MW.Root, 'Robot');
load(Robot, 'robot_sestaven_2.f3d');
Robot.Location = [0 0 1.5];