Wireframe model for sketching urban environments and landscapes with perspective.

* Add the model to the file.
* Choose the angle and degree of distortion in the perspective.
* Duplicate the layer twice so that you have 3 layers of the model.
* Create a layer for sketching.
* Transfer the perspective rulers from one layer with the model to the sketch layer and delete the 3D layer that is left without the ruler.

* On the last layer with the model, leave only the Boundaries folder visible, and you can also disable one of the walls, ceiling, or floor.

* On one of the layers with the model, keep the folder with the X-Y-Z axes visible.

* Use the movable part sliders to move the X-Y-Z axes and start sketching.

Example of tool use.

Material
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Default material
Allocate
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Default layout
Movable parts
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X
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Y
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Z