Either you create a project or open an existing project file, you load only meta data to the application. The image data are not loaded.
Figure 7.1: Starting a project
To load the image data, you select Project->Measure... or click the 
toolbar button. The images in the
project will be loaded. If the input images are larger than 32 Mb each, the images are not read
into RAM. Instead they are cached.
If there are TIFF files with unknown tags, warnings may be presented. You can safely disregard these warnings, since the project wizard has ensured that the TIFF files are valid for Metria CityModeler.
Once you have loaded a project, you can not view or edit the project meta data, unless you close the project and open it again.