Print at Dec 20, 2025, 8:24:15 AM

Posted by olh at Jul 1, 2018, 11:31:54 PM
Some notes after fist usage
Today I used SweetHome3D-5.7 for the first time. The plan was to get a true-to-scale representation of all rooms in an existing appartment, including dimensioning. I hoped to use a tool that saves me from doing any math.

What I used as a base is a drawed plan with all dimensions, the exact distance from wall to wall.

After some try and error I figured it is required to draw walls. The exact length of a wall can be represented via X/Y coordinates. Later I added dimensions, just to find that all values are wrong.

So here are my thougths:

A) It would be nice if there is a mode to specify the length of a wall as distance from surface to surface. Right now it seems the thickness of a wall plays a vital role. For a human it is natural to measure from surface to surface to get the dimensions of an existing wall, and ignore the thickness during that measuring.

B) It would be nice if there is a mode to operate in "relations of corners" to get the exact geometry. What I mean with that: Assume all surface-to-surface distances are known only after measuring. First one draws all the rooms, based on memory or from photos, to get a first approximation of the overall geometry. And finally one applies the measured distance. Pick some corner (#1) and "lock" it. Then specify the distance/length of a wall from surface-to-surface to the other corner (#2). That value of distance between #1 and #2 is static, the orientation and location is dynamic because it depends on the corners nearby. Next step is to specify the distance between corner #2 and the next corner #3, again a static value. And finally corner #n gets connected to #1 and the room is finished. The exact geometry depends of course on either the distance of, for example, the corner #1 and #3, or the angle of two walls. I think if one angle is known the other points will align, at least for a simple 4-wall room. While the wall property window allows to enter a lenght, its usage was not intuitive. It is not visual obvious what the "base" is. I will play some more with the tool, perhaps it partly does what I described. Also, that locked corner #1 also affects the room on the other side of the wall(s).

C) It would be nice if the applied dimension objects really stick/snap to the wall surface. Right now it seems they are floating objects, if the wall moves because the exact size of the object was specified, the dimension object does not follow.

Some of the dimensions are oddly orientated. Some of the text has to be read from the right, some from the left. It is not obvious why it is that way.

Thanks.