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The prism can be raised up to 5 meters, measured along the corner of the balcony, or used with a total station.
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The total station does not have a prism-free function? Nowadays, the general total station is equipped with.
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Just stand under the projection.
Stretch the plane, or simply draw the cubes and put them together one by one.
When you are proficient in CAD and when you have a good idea of the size of the furniture, it will be very fast!
I recommend a very easy modeling software for you, especially furniture modeling is very convenient with SketchUp.
Isometric drawings are two-dimensional graphics that reflect the three-dimensional shape of an object, which is full of three-dimensional sense and can help people understand the product structure faster and more clearly. Drawing an isometric drawing of a part is done in a two-dimensional plane, which is more concise and convenient than a three-dimensional drawing.
Your should be 400, and the current toilet basically has two pit distances, 300mm and 400mm