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i am trying to figure out how the MATCHPERPECTIVE command is functioning !
I read in the Help that the command matches the current model space perspective view
with a background image by selecting 3 or more matching point pairs.....
Following questions are arising :
1. What is meant by background image ?
Is this an image file attached with the IMAGEATTACH command ?
2. In which plane in model space should the image be placed XY , YZ, XZ ...?
3. What should be the scale of the image ?
3. If the command is functioning in perspective mode then the attached background
foto, which is already a perspective view of the building,
is also perspectively displayed in model space during the point mapping process ?? !!!
I don't get it done!
So i am attaching a 3D model and a foto of the real house (place dwg and image in the same directory
for the image to be find !!)
Could one possibly figure out how to proceed and produce a usable perspective match of 3d Model and Foto ?