https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273530#M142196 When I have to do stuff like this I'll usually end up looking at known lengths like bricks or ceiling/floor tiles, count them, and then add them up. Or at objects that are likely to be a usual length like furniture or like cars and look up the length of the car. <BR /> <BR /> Sometimes I'll even take a piece of paper and place it's edge against the length I want to measure, mark it, and then compare that to known lengths and try to guesstimate the distance. But if the picture is at an angle or the other lengths are in different pictures this might tell you something but probably won't work.<BR /> <BR /> I've also used triangulation if I know some of the distances.<BR /> <BR /> The one real saving grace is people usually use predictable parameters so sometimes it's just plugging in numbers, compare what you have to the picture and adjust if necessary.<BR /> <BR /> And in an extreme example, I ended up drawing a building assuming the some distances in the picture and based what I seen tried to make it proportionately right and with the above point about predictable parameters I wasn't that far off. Sun, 02 Apr 2017 15:25:42 GMT Anonymous 2017-04-02T15:25:42Z https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273529#M142195 <DIV class="actalk-migrated-content"><T>Hello, this question isn't related directly with ArchiCAD, but I didn't know where to ask. A question is: Is there any way to measure distances in building on the photo if you know most of the distances, but some of them not?</T></DIV> Sun, 02 Apr 2017 08:29:53 GMT https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273529#M142195 Anonymous 2017-04-02T08:29:53Z https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273530#M142196 When I have to do stuff like this I'll usually end up looking at known lengths like bricks or ceiling/floor tiles, count them, and then add them up. Or at objects that are likely to be a usual length like furniture or like cars and look up the length of the car. <BR /> <BR /> Sometimes I'll even take a piece of paper and place it's edge against the length I want to measure, mark it, and then compare that to known lengths and try to guesstimate the distance. But if the picture is at an angle or the other lengths are in different pictures this might tell you something but probably won't work.<BR /> <BR /> I've also used triangulation if I know some of the distances.<BR /> <BR /> The one real saving grace is people usually use predictable parameters so sometimes it's just plugging in numbers, compare what you have to the picture and adjust if necessary.<BR /> <BR /> And in an extreme example, I ended up drawing a building assuming the some distances in the picture and based what I seen tried to make it proportionately right and with the above point about predictable parameters I wasn't that far off. Sun, 02 Apr 2017 15:25:42 GMT https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273530#M142196 Anonymous 2017-04-02T15:25:42Z https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273531#M142197 It sounds like you are looking for photogrammetry software. There is indeed software that can do this, although ArchiCAD technically does not. You might look at <A href="http://dlt.fmt.bme.hu/" target="_blank">http://dlt.fmt.bme.hu/</A> which is on the list here: <A href="https://en.wikipedia.org/wiki/Comparison_of_photogrammetry_software" target="_blank"><LINK_TEXT text="https://en.wikipedia.org/wiki/Compariso ... y_software">https://en.wikipedia.org/wiki/Comparison_of_photogrammetry_software</LINK_TEXT></A> <BR /> <BR /> Haven't tried it myself, though. Sun, 02 Apr 2017 17:04:32 GMT https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273531#M142197 Richard Morrison 2017-04-02T17:04:32Z https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273532#M142198 mbeam thank you for your suggestions. Richard Morrison, you are right, that is what I am looking for, thanks. Sun, 02 Apr 2017 18:00:28 GMT https://community.graphisoft.com/t5/Modeling/Distances-from-the-photo/m-p/273532#M142198 Anonymous 2017-04-02T18:00:28Z