Bloated kmz file???

moabman · 16 Dec 2009, 13:27

Bear with me. This is my first post. I have a model of a bridge in which I use components extensively, some often nested several deep. These are textured with 7 transparent png files. These 7 files before importing into Sketchup 7.1 were a total of about 60 KB. My skp file is 185 KB but the exported kmz file is 1.17 MB, about 7 times as large. Am I doing something wrong or is there some bug involved here? If I delete the textures and use the default texture the skp is 111 KB and the kmz is 24 KB, i.e. the kmz is much smaller than the skp file.

I looked at an online Brooklyn Bridge file with png textures and its skp file was 3.03 MB and its kmz file was 3.05 MB, both files about the same size. If I stripped out the textures (it has many more) the skp file is 540 KB and the kmz file is 103 KB.

For both bridges w/o textures the kmz file is about 1/5 of the skp file. For the Brooklyn Bridge with textures the files are about the same size. With my bridge, with png textures, the kmz file is 6.5 times as big. Why is it so large?

Gaieus · 16 Dec 2009, 14:11

Hi Dave,

It seems as if for some reason, in your kmz file, the textures were multiplied like as if you made them all unique. Rename the kmz file to zip (extension) and open it. Inside one of the folders included, you should find all the images used in your model.

Also, could you share the model here, as an attachment, if you cannot find the reason? It would be good to have a deeper look.

moabman · 16 Dec 2009, 16:44

@unknownuser said:

Thanks. Your right my 6 PNGs grew to 12 PNGs. In the kmz file, one 10KB PNG became 4@ 50KB PNGs; One 20KB PNG became a 400KB PNG. It evidently resamples them. I had stretched them with the free pins in several different instances. How can I avoid this? My original images were rather skewed and stretched quite a bit. I had originally built the bridge in rather great detail and then captured screen images of various parts to create PNGs for textures to greatly reduce the polygon count. Do I need to stretch the image somewhere else to the approximate shape and aspect ratio before using in SketchUp? Attached is my skp file (not quite fi

Thanks. Your right my 6 PNGs grew to 12 PNGs. In the kmz file, one 10KB PNG became 4@ 50KB PNGs; One 20KB PNG became a 400KB PNG. It evidently resamples them. I had stretched them with the free pins in several different instances. How can I avoid this? My original images were rather skewed and stretched quite a bit. I had originally built the bridge in rather great detail and then captured screen images of various parts to create PNGs for textures to greatly reduce the polygon count. Do I need to stretch the image somewhere else to the approximate shape and aspect ratio before using in SketchUp? Attached is my skp file (not quite finished).

Dewey Bridge.skp

Gaieus · 16 Dec 2009, 21:25

Well, unfortunately I am not a kmz master myself and additionally, Google keeps changing its conversion convention all the time. This last (SU 7.1) change was actually very significant and a lot of things has changed (which keeps the whole world amazed).

I can ask however.