After you click to define one corner and drag your mouse, you should see the current dimensions at the bottom right of the SketchUpwindows. If Yale your rectangle long and skinny you can confirm which dimension it want you to type first. I think it is short then long side of triangle. Here is a link to SketchUp tool guide.. Under the drawing tools and rectangle you can learn more about how it works.
One possible reason that a surface may not show up is if what you drew at the top level was not exactly planar with the space surface. This can happen if your space is slightly out of square with your
After you click to define one corner and drag your mouse, you should see the current dimensions at the bottom right of the SketchUpwindows. If Yale your rectangle long and skinny you can confirm which dimension it want you to type first. I think it is short then long side of triangle. Here is a link to SketchUp tool guide.. Under the drawing tools and rectangle you can learn more about how it works.
One possible reason that a surface may not show up is if what you drew at the top level was not exactly planar with the space surface. This can happen if your space is slightly out of square with your coordinate system. I have seen this when the base model is made off of imported cad files. Also the project loose geometry in SketchUp's native intersect API, which has some bugs. If a surface doesn't copu over try to copy the edges, then double click to enter the space you want the window on and choose paste in place (it is in SketchUp's edit window.
If the building is very large, instead of projecting all of the windows at once, start with a specifc story or facade first and save between each operation. If you hit an erro, save as another OSM or quit without saving, but don't save over what you expect is a clean OSM.
When you use WWR user script the window as just short o the length of the surface. The ratio is achieved by adjusting the height. If you have a different target ratio on differnt sides you can apply the WWR and overhang scripts based on your current selection. Using this with surface search you can apply unique WWR ratios and overhang projection factors to each facade. If you have vertical fins, you would need to manually add those.
