Modelling a building floor

[nicolas-f]

Modeling in 3D the following main room and corridor in I-Simpa thanks to Inkscape and OpenSCAD:

Install Inkscape

Install OpenSCAD

Open Inkscape and drag and drop the image

To calculate the image size so that 48.1 mm in vector corresponds to 481 cm of the plane:

The image is 2108 pixels wide and the living room is 776 pixels wide.

The image should therefore be 2108*48.1/776=130.66 mm wide.

Click on the cursor in the top left-hand corner and select the image,

click on the lock to lock width height of the image:

In width, type 130.66

We're now going to draw the outline of the propagation zone

Click on the line segment tool:

Select the create a sequence of paraxial line segments mode.

Hold down the Ctrl key and draw the first wall (to align at 90°).

Continue the contour until you click on the first point you made.

Select your outline and copy and paste it into a new Inkscape document,

Adjust the page to the size of the object.

Save your project as plan.svg

Open openscad and save the empty project in the same folder as plan.svg

In the editor, type :

linear_extrude(2400) scale(100) import("plan.svg");

the plan is imported, resized to actual size (mm unit on openscad) and extruded to a height of 2.4 m.
Click on Design/"Calculate rendering" ( F6 )

Edit settings of OpenSCAD and check Advanced/Export Features/Default to ASCII STL export

Export in STL format

In I-SIMPA, import the model, select mm unit then validate.

Your project is ready for the simulation (you can check the 3d model by running a mesh preview)